TBI Throttle Body Injection discussion and questions. L03/CFI tech and other performance enhancements.

Ron_90's Build Thread

Thread Tools
 
Search this Thread
 
Old Jan 13, 2012 | 10:59 AM
  #101  
Ron_90's Avatar
Thread Starter
Member
 
Joined: Aug 2011
Posts: 462
Likes: 0
From: Baltimore, Maryland
Car: '90 RS
Engine: 305 TBI
Transmission: 700R4
Axle/Gears: 2.73 Open
Re: Ron_90's Build Thread

I just searched and found a remark he made about it. He said that he'd never use a dual plane on a TBI again after using that single plane- using that single plane I think he actually made slightly more low end torque than he did with the TPI in a dyno test.
Now here comes the heard part: finding a single plane Vortec intake for $100
Reply
Old Jan 20, 2012 | 05:41 PM
  #102  
Ron_90's Avatar
Thread Starter
Member
 
Joined: Aug 2011
Posts: 462
Likes: 0
From: Baltimore, Maryland
Car: '90 RS
Engine: 305 TBI
Transmission: 700R4
Axle/Gears: 2.73 Open
Re: Ron_90's Build Thread

I was going to drain the antifreeze (to remove the radiator so I can put stuff in) but my dad's saying the block will crack in this freezing weather if I do that. Is this true?
Reply
Old Jan 20, 2012 | 05:44 PM
  #103  
one92rs's Avatar
Supreme Member
iTrader: (5)
 
Joined: Jan 2009
Posts: 2,928
Likes: 4
From: league city
Car: SOLD!!!!!
Re: Ron_90's Build Thread

the block will not crack as long as there is antifreeze in the water left in the block. only when a block is full of straight water and it is put to many freezing times can it crack. usually the weakest freeze plug comes out first.
Reply
Old Jan 20, 2012 | 05:49 PM
  #104  
Ron_90's Avatar
Thread Starter
Member
 
Joined: Aug 2011
Posts: 462
Likes: 0
From: Baltimore, Maryland
Car: '90 RS
Engine: 305 TBI
Transmission: 700R4
Axle/Gears: 2.73 Open
Re: Ron_90's Build Thread

Originally Posted by one92rs
the block will not crack as long as there is antifreeze in the water left in the block. only when a block is full of straight water and it is put to many freezing times can it crack. usually the weakest freeze plug comes out first.
Thanks, the idea of a block cracking just because I'm draining the antifreeze sounded a bit odd to me. What's in there now is 50/50 so I'll be fine. Time to get yelled at some more
Reply
Old Jan 20, 2012 | 05:52 PM
  #105  
one92rs's Avatar
Supreme Member
iTrader: (5)
 
Joined: Jan 2009
Posts: 2,928
Likes: 4
From: league city
Car: SOLD!!!!!
Re: Ron_90's Build Thread

we have all been thru it.
Reply
Old Jan 20, 2012 | 06:42 PM
  #106  
morgsie's Avatar
Member
iTrader: (1)
 
Joined: Feb 2008
Posts: 454
Likes: 6
Re: Ron_90's Build Thread

Originally Posted by Ron_90
I just searched and found a remark he made about it. He said that he'd never use a dual plane on a TBI again after using that single plane- using that single plane I think he actually made slightly more low end torque than he did with the TPI in a dyno test.
Now here comes the heard part: finding a single plane Vortec intake for $100
Let`s keep in mind that the 2bbl single plane manifold manifold Fast used is an unheated intake (not the greatest on TBI). I`m pretty sure he ran that intake on a `7427 with MAF. FWIW.
Reply
Old Jan 20, 2012 | 07:27 PM
  #107  
Ron_90's Avatar
Thread Starter
Member
 
Joined: Aug 2011
Posts: 462
Likes: 0
From: Baltimore, Maryland
Car: '90 RS
Engine: 305 TBI
Transmission: 700R4
Axle/Gears: 2.73 Open
Re: Ron_90's Build Thread

Originally Posted by morgsie
Let`s keep in mind that the 2bbl single plane manifold manifold Fast used is an unheated intake (not the greatest on TBI). I`m pretty sure he ran that intake on a `7427 with MAF. FWIW.
Just to update on that: I'm getting a Professional Products Hurricane in next week. Got a nice deal on it from a guy here on TGO and he said the ports match up well.
What it looks like:


So that means the one I'm getting is unheated.. oh well. Shouldn't be too much of a problem since I'm running an open air cleaner and stock hood (no cowl). But I'm tuning with the EBL.. so I'm better off as far as tuning goes?? Not familiar with the setup described, and I'm running MAP
Reply
Old Jan 20, 2012 | 07:52 PM
  #108  
morgsie's Avatar
Member
iTrader: (1)
 
Joined: Feb 2008
Posts: 454
Likes: 6
Re: Ron_90's Build Thread

Search up on running unheated intakes.

https://www.thirdgen.org/forums/tbi/407850-had-ae.html

https://www.thirdgen.org/forums/tbi/...ody-icing.html

Last edited by morgsie; Jan 20, 2012 at 08:02 PM.
Reply
Old Jan 20, 2012 | 08:33 PM
  #109  
Ron_90's Avatar
Thread Starter
Member
 
Joined: Aug 2011
Posts: 462
Likes: 0
From: Baltimore, Maryland
Car: '90 RS
Engine: 305 TBI
Transmission: 700R4
Axle/Gears: 2.73 Open
Re: Ron_90's Build Thread

Thanks for the reading! I never would have found that myself- dimented has some great stuff there.

It appears I was wrong about the, though. It's not exhaust heated but it is water heated. However, since it does has the air gap between the plenum and the base it'll be a good idea to set up the IAT sensor.

Last edited by Ron_90; Jan 20, 2012 at 08:40 PM.
Reply
Old Jan 26, 2012 | 04:49 PM
  #110  
Ron_90's Avatar
Thread Starter
Member
 
Joined: Aug 2011
Posts: 462
Likes: 0
From: Baltimore, Maryland
Car: '90 RS
Engine: 305 TBI
Transmission: 700R4
Axle/Gears: 2.73 Open
Re: Ron_90's Build Thread

Just an update here: Now that I'm able to let senioritis set in (aced just about every course last semester) I've been working on removing stuff. So far i have the radiator, coolant and washer bottles out.
Started taking the A/C out today.. and on that note I think I'll get a Haynes manual. Ended up getting a bit of R12 (or R134, who knows.. based on some of the crap I've found in the engine bay I wouldn't doubt the previous owner would have been dumb enough) to the face because I didn't know exactly what I was doing. I just got out of the way and let the pressure release.. Yes, my car is outside.
After that I found this guide on TGO with decent instructions. Reposted for the viewing pleasure of noobs like myself.
- Disconnect battery
- Take the belt off
- Dyscharge the system (be careful this staff can do some serious health damage) I did this outside-not in the house garage- wore gloves and eye protection. There are two valves on the back of the compressor. BY pressing on them you willrelease all that stuff into the atmosphere. Just do not get caught.
- Unbolt and remove or cut all the hoses that are attached to the compressor, and the once going to the A/C heater box
- Remove the little black wire that is attached to the compressor ground it
- Pull the compressor out
- Remove the black round cylinder (attached to the frame)
- Remove the air lib cover and disconnect your MAF
- Unbolt the bolts holding the fan
- Pull the radiator up maybe 3 or 4 inches (be carefull)to remove it from the rubber pieces it is seating in to gaing access to the A/C rad (looks like a rad to me)
- Slide under the car and remove four screws holding that rad.
- Go back up and cut/remove two hoses at that rad (I cut mine)
- Carefully pull the A/C rad out. It took me few minutes, but be carefull not to cut any wires, or yourself.
- Install new pulley (need three 10mm bolts)
- Install the shorter belt (I removed my smog pump too so I am using KS 970 belt)
- Remove 3 bolts holding the A/C box at the firewall (all of them should be mounted on the top part of the box)
- Go inside your car, passanger side and remove the black cover (above your knees when you are seating)
- If you look carefully there should be three remaing screws that are holding the bottom part of that box-remove them
- Go back outside and carefully remove the A/C box out (be carefull not to break any wires, my box was sealed with some glue so I got pissed off and broke the box into few pieces
- Once removed clean the new non A/C box
- Install a new blower motor/fan
- Screw it in
- Connect the blower fan resistors
- Put the black cover back into the place
- Connect the battery
- Start the car and enjoy
Will update with pictures of my progress tomorrow- it's dark and rainy now so I'm not going back out
Reply
Old Jan 26, 2012 | 06:20 PM
  #111  
bigreed91's Avatar
Member
 
Joined: Jun 2011
Posts: 384
Likes: 0
From: Columbia, TN
Car: 1990 camaro rs
Engine: 5.0L 305 tbi
Transmission: 700r4
Axle/Gears: 2.73
Re: Ron_90's Build Thread

When i deleted my a/c i first pushed in one of the schrader fill valves.and nuthin came out, so i carefully started to un hook one of the lines and still nuthing ever came out, i guess thats why it never worked lol. I despise a/c anyways
Reply
Old Jan 28, 2012 | 08:18 PM
  #112  
Ron_90's Avatar
Thread Starter
Member
 
Joined: Aug 2011
Posts: 462
Likes: 0
From: Baltimore, Maryland
Car: '90 RS
Engine: 305 TBI
Transmission: 700R4
Axle/Gears: 2.73 Open
Re: Ron_90's Build Thread

Haha I do too- I greatly prefer fresh air to A/C, no matter how hot.

Got the A/C out today and made some progress on taking the exhaust off. Tomorrow I'll take the rest of the A/C out along with the accessory brackets, smog, heads, and maybe power steering.
The second picture is of the leaves I found by the radiator.. how does that even happen??


What am I supposed to do with all these wires that are now going to nowhere?
Attached Thumbnails Ron_90's Build Thread-ac-delete.jpg   Ron_90's Build Thread-leaves.jpg  
Reply
Old Jan 28, 2012 | 11:32 PM
  #113  
Carlos773's Avatar
Supreme Member
iTrader: (3)
 
Joined: Jul 2009
Posts: 1,311
Likes: 3
From: Chicago, IL
Car: 1986 Pontiac Firebird
Engine: 97 LT1 W/ Alot of goodies.
Transmission: 4L60E W/ Yank SS3600
Axle/Gears: 3.27 9 Bolt BW
Re: Ron_90's Build Thread

Please don't cut them off. Do it the right way. Take the leads off the connector and hide it in the loom. Don't just cut away. If you decide to put it back on, just get ahold of the connectors and you can undo the delete. Gives you a good feeling knowing you did not half-*** it too.
Reply
Old Jan 28, 2012 | 11:38 PM
  #114  
Ron_90's Avatar
Thread Starter
Member
 
Joined: Aug 2011
Posts: 462
Likes: 0
From: Baltimore, Maryland
Car: '90 RS
Engine: 305 TBI
Transmission: 700R4
Axle/Gears: 2.73 Open
Re: Ron_90's Build Thread

Originally Posted by Carlos773
Please don't cut them off. Do it the right way. Take the leads off the connector and hide it in the loom. Don't just cut away. If you decide to put it back on, just get ahold of the connectors and you can undo the delete. Gives you a good feeling knowing you did not half-*** it too.
Thanks for the advice. I'm trying to do this build with as little cutting as possible and I'm saving all the uncut original parts- just in case I decide to do a near full resto in the future
Reply
Old Feb 8, 2012 | 07:16 PM
  #115  
Ron_90's Avatar
Thread Starter
Member
 
Joined: Aug 2011
Posts: 462
Likes: 0
From: Baltimore, Maryland
Car: '90 RS
Engine: 305 TBI
Transmission: 700R4
Axle/Gears: 2.73 Open
Re: Ron_90's Build Thread

I'm porting the TBI now. Do I want a super polished finish on the bowl, or is it better to leave it a little rough?
Reply
Old Feb 9, 2012 | 09:06 AM
  #116  
Ronny's Avatar
TGO Supporter
20 Year Member
iTrader: (1)
 
Joined: Mar 2003
Posts: 6,880
Likes: 4
From: wisconsin
Re: Ron_90's Build Thread

I presume you are speaking of the intake. I believe the consenus is to allow a blasted type of finish. TBI uses wall wetting to help achieve atomization and help maintain fuel in/on surface should vac drop and fuel falls out of atomization it therefore can recover more quickly if fuel is present on walls of manifold. Not sure if TBI specific flows were done polished vs blasted finish. Certainly there were done on port and carb comparisons.
Reply
Old Feb 9, 2012 | 02:12 PM
  #117  
Ron_90's Avatar
Thread Starter
Member
 
Joined: Aug 2011
Posts: 462
Likes: 0
From: Baltimore, Maryland
Car: '90 RS
Engine: 305 TBI
Transmission: 700R4
Axle/Gears: 2.73 Open
Re: Ron_90's Build Thread

Originally Posted by Ronny
I presume you are speaking of the intake. I believe the consenus is to allow a blasted type of finish. TBI uses wall wetting to help achieve atomization and help maintain fuel in/on surface should vac drop and fuel falls out of atomization it therefore can recover more quickly if fuel is present on walls of manifold. Not sure if TBI specific flows were done polished vs blasted finish. Certainly there were done on port and carb comparisons.
No, I meant I was porting the throttle body. I took out the ridges on the top, smoothed out the transition between the "mouth" and the straight part and opened the whole thing up in general. I'll be finished shaving the throttle blade shafts tonight. I'll try to get some pictures up soon

I'm thinking that if the intake is supposed to be blasted then it certainly couldn't hurt to have a blasted finish on the TB
Reply
Old Feb 9, 2012 | 03:46 PM
  #118  
Ron_90's Avatar
Thread Starter
Member
 
Joined: Aug 2011
Posts: 462
Likes: 0
From: Baltimore, Maryland
Car: '90 RS
Engine: 305 TBI
Transmission: 700R4
Axle/Gears: 2.73 Open
Re: Ron_90's Build Thread

Here are the pictures. It's better than it looks in the pictures- I only hit it with a sanding stone from my dremel set to smooth out the bit marks so the light and the metal do make it look unsightly. Just wondering if I should smooth it out more
Attached Thumbnails Ron_90's Build Thread-ported-tbi-1.png   Ron_90's Build Thread-ported-tbi-2.png   Ron_90's Build Thread-ported-tbi-4.png  
Reply
Old Feb 9, 2012 | 05:21 PM
  #119  
one92rs's Avatar
Supreme Member
iTrader: (5)
 
Joined: Jan 2009
Posts: 2,928
Likes: 4
From: league city
Car: SOLD!!!!!
Re: Ron_90's Build Thread

i took 400 grit emery cloth to mine and smoothed it all out.
Reply
Old Feb 10, 2012 | 08:39 PM
  #120  
xch3no2's Avatar
Senior Member
 
Joined: Oct 2009
Posts: 676
Likes: 1
From: Pacific NW
Car: 89 K3500 Fleetside
Engine: RAT *tbi* EBL
Transmission: TH400
Axle/Gears: 3.73-Dana 60
Re: Ron_90's Build Thread

Originally Posted by Ron_90
I love powerlifting
Now the hamster has meaning
Reply
Old Feb 10, 2012 | 10:07 PM
  #121  
Ron_90's Avatar
Thread Starter
Member
 
Joined: Aug 2011
Posts: 462
Likes: 0
From: Baltimore, Maryland
Car: '90 RS
Engine: 305 TBI
Transmission: 700R4
Axle/Gears: 2.73 Open
Re: Ron_90's Build Thread

Originally Posted by xch3no2
Now the hamster has meaning
Haha I started using that on other forums early last year and decided to stick with it even though I'm down to a weak 165lbs @ 5'11".. I used to be 190 and able to deadlift over 350 without straps last May. My grip was the weak part so who knows what I could have pulled with straps
After my car's finished I'll go back to training full bore, and for D3 college lacrosse. 4k calories per day of quality food is not cheap lol
Reply
Old Feb 11, 2012 | 01:03 AM
  #122  
robertfrank's Avatar
Supreme Member
20 Year Member
Liked
iTrader: (27)
 
Joined: Apr 2004
Posts: 3,001
Likes: 62
From: Salt Lake City, Utah
Car: 1988 camaro "SS"/ 1991 305/T5
Engine: 383 LT1 in progress/LT1TBI 355 soon
Transmission: Probuilt 700R4 3600 stall/ T5
Axle/Gears: Moser axles, 3.42 Eaton Posi
Re: Ron_90's Build Thread

I've been into the fitness game for a while myself. I look like a small tank being 5'7" and 180lbs lol. Still working on it though. I was proud of myself yesterday. I was able to do bent over dumbbell rows using 110lb bells for 5 sets of 10.
Reply
Old Feb 12, 2012 | 12:29 AM
  #123  
SKELITOR117's Avatar
Supreme Member
iTrader: (3)
 
Joined: Jul 2011
Posts: 1,826
Likes: 0
From: Katy TEXAS (West Houston)
Car: 1992 Camaro RS
Engine: 5.0 TBI L03 V8
Transmission: Rebuilt 700R4 W/ Corvette shift kit
Axle/Gears: 2:73 open
Re: Ron_90's Build Thread

I lifted the rear of a AE86 Toyota almost and inch off of the ground before.
Reply
Old Feb 12, 2012 | 01:02 AM
  #124  
robertfrank's Avatar
Supreme Member
20 Year Member
Liked
iTrader: (27)
 
Joined: Apr 2004
Posts: 3,001
Likes: 62
From: Salt Lake City, Utah
Car: 1988 camaro "SS"/ 1991 305/T5
Engine: 383 LT1 in progress/LT1TBI 355 soon
Transmission: Probuilt 700R4 3600 stall/ T5
Axle/Gears: Moser axles, 3.42 Eaton Posi
Re: Ron_90's Build Thread

Originally Posted by SKELITOR117
I lifted the rear of a AE86 Toyota almost and inch off of the ground before.
Lol that's funny. I used to have an 82 starlet that I was able to rest the back axle on my back and I was able to press the rear up about 4 inches off the ground for 1 rep lol.
Reply
Old Feb 12, 2012 | 07:11 AM
  #125  
Street Lethal's Avatar
Supreme Member
20 Year Member
Liked
Loved
Community Favorite
iTrader: (16)
 
Joined: Jul 2003
Posts: 10,521
Likes: 204
From: NYC / Jersey
Car: 1990 Trans Am GTA
Engine: Turbo 305 w/MS2
Transmission: 700R4
Re: Ron_90's Build Thread

Originally Posted by Ron_90
IIRC he had a standard 305 setup before he upgraded to 4" bore/short stroke combination.

And just thinking, with a set of '84-'86 LG4 pistons I could achieve a 9.8:1 compression ratio. As it stands now with the Vortec heads and .015" head gasket I'll be right at 9.0:1. I'll look into getting the heads milled; I don't think that costs too much at my local machine shop....
That magazine article is wrong. Preston was in fact running a 90's 305 w/supercharger, much like my turbo 305, but there was no way he was running in the tens, no way, as he was only running 30-lb injectors during that time and weighing close to 3800 pounds @ 15 pounds of boost. That is impossible, especially with the supercharger because it doesn't have the same curve as a turbo, so don't believe everything you read. If you decide to go with a dual plane, trim down the divider about a half of an inch like I did, makes a tremendous difference. I would also open up the TBI adapter the same way as well. I did this to my Holley TBI intake, but I forget where I put the TBI adapter spacer, as that came out pretty sweet too...

Name:  HolleyProJection-3-1.jpg
Views: 176
Size:  64.8 KB
Name:  100_0764.jpg
Views: 150
Size:  61.4 KB
Reply
Old Feb 12, 2012 | 10:40 AM
  #126  
Ron_90's Avatar
Thread Starter
Member
 
Joined: Aug 2011
Posts: 462
Likes: 0
From: Baltimore, Maryland
Car: '90 RS
Engine: 305 TBI
Transmission: 700R4
Axle/Gears: 2.73 Open
Re: Ron_90's Build Thread

Originally Posted by robertfrank
I've been into the fitness game for a while myself. I look like a small tank being 5'7" and 180lbs lol. Still working on it though. I was proud of myself yesterday. I was able to do bent over dumbbell rows using 110lb bells for 5 sets of 10.
Haha that's pretty damn good. I never got close to that- mainly because I had a habit of half-assing the back work to do more pressing stuff. Ended up having to re-work 5/3/1 for a cycle of primary back lifts to get my chest to open up

Originally Posted by Street Lethal
That magazine article is wrong. Preston was in fact running a 90's 305 w/supercharger, much like my turbo 305, but there was no way he was running in the tens, no way, as he was only running 30-lb injectors during that time and weighing close to 3800 pounds @ 15 pounds of boost. That is impossible, especially with the supercharger because it doesn't have the same curve as a turbo, so don't believe everything you read. If you decide to go with a dual plane, trim down the divider about a half of an inch like I did, makes a tremendous difference. I would also open up the TBI adapter the same way as well. I did this to my Holley TBI intake, but I forget where I put the TBI adapter spacer, as that came out pretty sweet too...
Yeah, no way he could have run those trick times with a standard 305. I believe was referring to an earlier time when he must have been running slower- that time, with that engine, with that much weight is truly an impossibility.

Also, thanks for the info but I ended up getting a single plane intake, which should work much better than a dual plane. I'll just have to mod the IAT sensor so that it actually sits in the top of the manifold. I think dimented24x7 has a thread on how to do it. Damn thing just has to come in already... thank God I used paypal so I'm covered if it doesn't come through
Reply
Old Mar 3, 2012 | 09:38 PM
  #127  
Ron_90's Avatar
Thread Starter
Member
 
Joined: Aug 2011
Posts: 462
Likes: 0
From: Baltimore, Maryland
Car: '90 RS
Engine: 305 TBI
Transmission: 700R4
Axle/Gears: 2.73 Open
Re: Ron_90's Build Thread

Had to take a bit of time off due to school stuff but I'm back at it. Right now I'm working on the heads- just got the old valve springs off and I'll be cleaning the heads up tomorrow.

Will I need to install screw-in studs? I'm thinking no, as it's street driven and only has an LT1 cam as of now

Edit (more info)

Valve Springs are Howards Cams 98212 Valve Springs- 115lbs Seat pressure, 340lbs Open pressure, 425lbs/in spring rate

Last edited by Ron_90; Mar 3, 2012 at 10:20 PM.
Reply
Old Mar 4, 2012 | 09:06 AM
  #128  
thomas1976's Avatar
Supreme Member
 
Joined: Jun 2006
Posts: 2,199
Likes: 1
From: West-Central
Car: 91 Trans am
Engine: built 360 TBI
Transmission: built 700r4
Axle/Gears: 10bolt/3.23
Re: Ron_90's Build Thread

The LT1 cam does not require screw in rocker studs.
Reply
Old Mar 4, 2012 | 12:33 PM
  #129  
Ron_90's Avatar
Thread Starter
Member
 
Joined: Aug 2011
Posts: 462
Likes: 0
From: Baltimore, Maryland
Car: '90 RS
Engine: 305 TBI
Transmission: 700R4
Axle/Gears: 2.73 Open
Re: Ron_90's Build Thread

Originally Posted by thomas1976
The LT1 cam does not require screw in rocker studs.
That's what I was thinking but I wasn't sure because of the higher spring pressure. I'll do the conversion if I get a new cam later
Reply
Old Mar 5, 2012 | 07:23 AM
  #130  
thomas1976's Avatar
Supreme Member
 
Joined: Jun 2006
Posts: 2,199
Likes: 1
From: West-Central
Car: 91 Trans am
Engine: built 360 TBI
Transmission: built 700r4
Axle/Gears: 10bolt/3.23
Re: Ron_90's Build Thread

If you plan to upgrade in the future, it would be better/easier to convert to screw in rocker studs now while the heads are off the engine.
Reply
Old Mar 5, 2012 | 11:49 AM
  #131  
Ron_90's Avatar
Thread Starter
Member
 
Joined: Aug 2011
Posts: 462
Likes: 0
From: Baltimore, Maryland
Car: '90 RS
Engine: 305 TBI
Transmission: 700R4
Axle/Gears: 2.73 Open
Re: Ron_90's Build Thread

Originally Posted by thomas1976
If you plan to upgrade in the future, it would be better/easier to convert to screw in rocker studs now while the heads are off the engine.
With college and college lacrosse coming up I'm pretty sure I'll be keeping my current engine combination the same for a few years. Otherwise I'd have no problem putting out $250 for screw in studs and roller rockers (another thing I'd like to do)

Since I've been kind of sparse with the pictures here's a screenshot of the Desktop Dyno for my engine combination

Edit: I re-did the dyno with bone stock L30 headflow numbers, 1.84" valves (was 1.94" previously) and an open exhaust, as my exhaust system's flow is planned to flow exceptionally well. Here's hoping the numbers of the final product are close

Attached Thumbnails Ron_90's Build Thread-305dyno.jpg  

Last edited by Ron_90; Mar 5, 2012 at 07:35 PM.
Reply
Old Mar 6, 2012 | 10:28 AM
  #132  
Ron_90's Avatar
Thread Starter
Member
 
Joined: Aug 2011
Posts: 462
Likes: 0
From: Baltimore, Maryland
Car: '90 RS
Engine: 305 TBI
Transmission: 700R4
Axle/Gears: 2.73 Open
Re: Ron_90's Build Thread

Is this the right torque converter- the S10 converter that's supposed to stall at 2,600 rpm? http://www.rockauto.com/catalog/x,ca...ue%2BConverter

It's dirt cheap and comes with a 2 year warranty.. sounds almost too good to be true haha
Reply
Old Mar 19, 2012 | 10:37 PM
  #133  
NagleMac's Avatar
Senior Member
iTrader: (1)
 
Joined: Apr 2011
Posts: 714
Likes: 1
From: Pennsylvania
Car: '91 Camaro RS
Engine: Carb'd 383
Transmission: Built T5
Axle/Gears: 3.73 Posi
Re: Ron_90's Build Thread

I can't say for sure if that's it or not (not my best area of knowledge) but you're deffinetly right with dirt cheap... I think I remember you saying you're a senior in high school, right? So am I and Im stocking up all the parts I need to build my carb'd 350, this is a sweet thread
Reply
Old Mar 20, 2012 | 06:52 AM
  #134  
Ron_90's Avatar
Thread Starter
Member
 
Joined: Aug 2011
Posts: 462
Likes: 0
From: Baltimore, Maryland
Car: '90 RS
Engine: 305 TBI
Transmission: 700R4
Axle/Gears: 2.73 Open
Re: Ron_90's Build Thread

Originally Posted by NagleMac
I can't say for sure if that's it or not (not my best area of knowledge) but you're deffinetly right with dirt cheap... I think I remember you saying you're a senior in high school, right? So am I and Im stocking up all the parts I need to build my carb'd 350, this is a sweet thread
Thanks a lot man. And I'll see what happens with my stock converter before I try a new one out- I might not need it after all.

Do you have a build thread for yours?

And just an update in general: I'm going to solve the problem I presented in this thread ( https://www.thirdgen.org/forums/tbi/...ml#post5216781 ) by re-drilling the adapter plate (so it's offset correctly) and the intake. Since I already bought the tapping set so I might as well use it.

If all goes as I hope, this weekend I'll be getting a roller with Konis and a bunch of other usable parts. After all the parts I need are harvested my brother and I will probably drop an L98 and 700R4 in... if we get it lol
Reply
Old Mar 20, 2012 | 06:55 AM
  #135  
NagleMac's Avatar
Senior Member
iTrader: (1)
 
Joined: Apr 2011
Posts: 714
Likes: 1
From: Pennsylvania
Car: '91 Camaro RS
Engine: Carb'd 383
Transmission: Built T5
Axle/Gears: 3.73 Posi
Re: Ron_90's Build Thread

No build thread yet, hopefully starts in the fall, might be next spring tho, it'll be after I get all the parts
Reply
Old Mar 27, 2012 | 06:58 PM
  #136  
Ron_90's Avatar
Thread Starter
Member
 
Joined: Aug 2011
Posts: 462
Likes: 0
From: Baltimore, Maryland
Car: '90 RS
Engine: 305 TBI
Transmission: 700R4
Axle/Gears: 2.73 Open
Re: Ron_90's Build Thread

Is there any methodology to taking the starter out, or some kind of guide I should follow? The engine keeps turning over when I try to take the harmonic balancer out. I tried putting it in gear and that didn't work so now it looks like I'll have to go with the screwdriver in the flexplate trick
Reply
Old Mar 27, 2012 | 08:17 PM
  #137  
pound's Avatar
Member
iTrader: (7)
 
Joined: Dec 2005
Posts: 276
Likes: 9
From: Beautiful Coastal New Jersey
Car: 1990 Firebird
Engine: 350 TBI
Transmission: T5
Axle/Gears: Auburn posi 3.73
Re: Ron_90's Build Thread

Originally Posted by Ron_90
Is there any methodology to taking the starter out, or some kind of guide I should follow? The engine keeps turning over when I try to take the harmonic balancer out. I tried putting it in gear and that didn't work so now it looks like I'll have to go with the screwdriver in the flexplate trick
To get the starter out you just have to disconnect any wires connected to it, and then take off the two bolts holding it on to the block. It would be a good idea to disconnect the battery first.

The engine should not be turning over if you are removing the harmonic damper. It is pressed straight onto the snout of the crankshaft and you need a puller to pull it straight off.
Reply
Old Mar 27, 2012 | 08:50 PM
  #138  
Ron_90's Avatar
Thread Starter
Member
 
Joined: Aug 2011
Posts: 462
Likes: 0
From: Baltimore, Maryland
Car: '90 RS
Engine: 305 TBI
Transmission: 700R4
Axle/Gears: 2.73 Open
Re: Ron_90's Build Thread

Originally Posted by pound
To get the starter out you just have to disconnect any wires connected to it, and then take off the two bolts holding it on to the block. It would be a good idea to disconnect the battery first.

The engine should not be turning over if you are removing the harmonic damper. It is pressed straight onto the snout of the crankshaft and you need a puller to pull it straight off.
Sounds easy enough. And I should have said "removing the bolts that join the damper to the pulley". I have the remover tool so once I get the pulley off it should be easy street from there.

Also picked up a new timing chain set for $30 (must have been sitting on the shelf for a while) so that'll be going on too
Reply
Old Mar 27, 2012 | 08:57 PM
  #139  
pound's Avatar
Member
iTrader: (7)
 
Joined: Dec 2005
Posts: 276
Likes: 9
From: Beautiful Coastal New Jersey
Car: 1990 Firebird
Engine: 350 TBI
Transmission: T5
Axle/Gears: Auburn posi 3.73
Re: Ron_90's Build Thread

Oh yea sometimes the pulley bolts are stubborn. I usually just leave the serpentine belt on and loosen the bolts a bit. Then take the belt off and get the pulley off.
Reply
Old Mar 27, 2012 | 09:11 PM
  #140  
Ron_90's Avatar
Thread Starter
Member
 
Joined: Aug 2011
Posts: 462
Likes: 0
From: Baltimore, Maryland
Car: '90 RS
Engine: 305 TBI
Transmission: 700R4
Axle/Gears: 2.73 Open
Re: Ron_90's Build Thread

Originally Posted by pound
Oh yea sometimes the pulley bolts are stubborn. I usually just leave the serpentine belt on and loosen the bolts a bit. Then take the belt off and get the pulley off.
Wish I had the foresight to do that in the first place. Oh well, just something I'll remember to do on my next build.

On second thought... maybe I can thread my old pulley belt through my rubber pipe wrench. We'll see what happens tomorrow
Reply
Old Mar 30, 2012 | 12:12 PM
  #141  
alvanwie's Avatar
Member
 
Joined: Oct 2005
Posts: 330
Likes: 0
From: Dyer, In
Car: 91 Camaro RS
Engine: 355 Vortec
Transmission: 700r4
Axle/Gears: 3.42
Re: Ron_90's Build Thread

Originally Posted by Ron_90
With college and college lacrosse coming up I'm pretty sure I'll be keeping my current engine combination the same for a few years. Otherwise I'd have no problem putting out $250 for screw in studs and roller rockers (another thing I'd like to do)

Since I've been kind of sparse with the pictures here's a screenshot of the Desktop Dyno for my engine combination

Edit: I re-did the dyno with bone stock L30 headflow numbers, 1.84" valves (was 1.94" previously) and an open exhaust, as my exhaust system's flow is planned to flow exceptionally well. Here's hoping the numbers of the final product are close

Don't want to bust your bubble,,,but your simulations need a little more work. There is no way that thing is going to peak at 6500rpm with an LT1 cam.
Reply
Old Mar 30, 2012 | 12:29 PM
  #142  
Ron_90's Avatar
Thread Starter
Member
 
Joined: Aug 2011
Posts: 462
Likes: 0
From: Baltimore, Maryland
Car: '90 RS
Engine: 305 TBI
Transmission: 700R4
Axle/Gears: 2.73 Open
Re: Ron_90's Build Thread

Originally Posted by alvanwie
Don't want to bust your bubble,,,but your simulations need a little more work. There is no way that thing is going to peak at 6500rpm with an LT1 cam.
Yeah, I've been kind of perplexed by that for a while. I just went by what dyno2003 said to use in the LT1 cam file, which looks to have way too much duration. I'll manually enter the cam specs later today to see what happens
Reply
Old Apr 5, 2012 | 06:20 PM
  #143  
Ron_90's Avatar
Thread Starter
Member
 
Joined: Aug 2011
Posts: 462
Likes: 0
From: Baltimore, Maryland
Car: '90 RS
Engine: 305 TBI
Transmission: 700R4
Axle/Gears: 2.73 Open
Re: Ron_90's Build Thread

Forgot about that computer dyno test.. might get to that later.

Today has been a pain in the ***. I got the harmonic balancer off last night but needed to set the engine to TDC. Went to three stores today and none of them had a crankshaft socket- ended up borrowing a flywheel turning tool from a shop down the street.
Now I can't get the crankshaft gear off- pretty sure it's due to the crappy tool I'm renting from Advance Auto. So far all I've gotten is a disproportionate pull (only 2 of the 3 prongs) and metal shavings from both the crank and the tool. Now I need to locate another tool rental

Oh, and I managed to snap a Torx bit (made in the USA...) taking the cam retainer plate off and cracked a 9/16" socket (made in Taiwan, understandable) in 3 places yesterday.e

Everything's ready to get put together, my tools just keep letting me down!
Reply
Old Apr 11, 2012 | 11:43 PM
  #144  
Ron_90's Avatar
Thread Starter
Member
 
Joined: Aug 2011
Posts: 462
Likes: 0
From: Baltimore, Maryland
Car: '90 RS
Engine: 305 TBI
Transmission: 700R4
Axle/Gears: 2.73 Open
Re: Ron_90's Build Thread

Updates, updates.

Got the cam in. Replaced the crappy torx screws on the cam retainer plate with hex-headed ones. The timing gear set didn't fit for some reason and the one that was on there isn't bad, so I'm just going to reuse the one that's on there

The heads are also on now.. I just need to locate my camera for those pics. If I have time tomorrow I'll get the O2 sensor bung welded into my header.

Edit: The intake assembly is pretty much ready to go on. I'm just confused about what to do with the VAFPR setup. There's no plug for manifold vacuum so should I try running it without VAFPR first or should I tap it (I could just go through my adapter plate) for a vacuum line?
Attached Thumbnails Ron_90's Build Thread-dscf0100.jpg   Ron_90's Build Thread-dscf0105.jpg   Ron_90's Build Thread-dscf0111.jpg  
Reply
Old Apr 23, 2012 | 05:31 PM
  #145  
Ron_90's Avatar
Thread Starter
Member
 
Joined: Aug 2011
Posts: 462
Likes: 0
From: Baltimore, Maryland
Car: '90 RS
Engine: 305 TBI
Transmission: 700R4
Axle/Gears: 2.73 Open
Re: Ron_90's Build Thread

Bump: Should I tap the intake for manifold vacuum (for the VAFPR) or just try it as-is?
Reply
Old Apr 23, 2012 | 06:53 PM
  #146  
NagleMac's Avatar
Senior Member
iTrader: (1)
 
Joined: Apr 2011
Posts: 714
Likes: 1
From: Pennsylvania
Car: '91 Camaro RS
Engine: Carb'd 383
Transmission: Built T5
Axle/Gears: 3.73 Posi
Re: Ron_90's Build Thread

Wish I could help, but I have no clue what would be the best
Reply
Old Apr 23, 2012 | 07:00 PM
  #147  
Ron_90's Avatar
Thread Starter
Member
 
Joined: Aug 2011
Posts: 462
Likes: 0
From: Baltimore, Maryland
Car: '90 RS
Engine: 305 TBI
Transmission: 700R4
Axle/Gears: 2.73 Open
Re: Ron_90's Build Thread

Originally Posted by NagleMac
Wish I could help, but I have no clue what would be the best
I kind of want to try it without the VAFPR even though I'm going to be running about 40 PSI. I blocked off some of the IAC so I'm thinking there might be just enough vacuum to negate the increased fuel pressure
Reply
Old Apr 23, 2012 | 07:24 PM
  #148  
NagleMac's Avatar
Senior Member
iTrader: (1)
 
Joined: Apr 2011
Posts: 714
Likes: 1
From: Pennsylvania
Car: '91 Camaro RS
Engine: Carb'd 383
Transmission: Built T5
Axle/Gears: 3.73 Posi
Re: Ron_90's Build Thread

Yea I'd try it without, you can always tap the manifold if you decide to use it
Reply
Old Apr 24, 2012 | 03:58 AM
  #149  
thomas1976's Avatar
Supreme Member
 
Joined: Jun 2006
Posts: 2,199
Likes: 1
From: West-Central
Car: 91 Trans am
Engine: built 360 TBI
Transmission: built 700r4
Axle/Gears: 10bolt/3.23
Re: Ron_90's Build Thread

Originally Posted by Ron_90
Bump: Should I tap the intake for manifold vacuum (for the VAFPR) or just try it as-is?
Can use the Thermac vacuum port on your TB.

40 psi without VRFPR, the sparkplugs will probably not last long.
Reply
Old Apr 24, 2012 | 06:51 AM
  #150  
Ron_90's Avatar
Thread Starter
Member
 
Joined: Aug 2011
Posts: 462
Likes: 0
From: Baltimore, Maryland
Car: '90 RS
Engine: 305 TBI
Transmission: 700R4
Axle/Gears: 2.73 Open
Re: Ron_90's Build Thread

Originally Posted by thomas1976
Can use the Thermac vacuum port on your TB.

40 psi without VRFPR, the sparkplugs will probably not last long.
Thank you- I wasn't sure whether I could or not. The service manual, while being great for just about everything else, does not go into detail about the vacuum ports on the TBI.

Now I have a new problem. I forgot about the brake booster line- there's no place to plug it into the manifold. Is there another vacuum port I can plug this into? Would the EVAP port work? Not my first choice but I don't want to pull the intake off
Reply



All times are GMT -5. The time now is 01:33 AM.