Y'all should have seen the gen 5/6 dfi my car had in it. Had a variable injector controller/driver and a plug n play board so it would plug right into the car. I had an IBM 486 laptop to tune it with. Was put in the car in 1990. Has a megasquirt now, but may swap to something else when I get it running again.

 

Just a small update. The engine felt like it was holding back a little during that video on the page before, and after looking at my spark advance in the datalog, I knew something was up because I was seeing a lot less advance than I should have with the values that I set in the Launch - SA table. So, I went back into the bin to inspect. Well, found the problem. I had my values in the table the way they would be with XFI, they were going the wrong freaking way, as I keep forgetting Tuner Pro is the opposite. Fixed that issue, ran a quick datalog, and now she pulls so hard off the line it has me grinning from ear to ear. Didn't adjust Launch - Sa just yet, as I need to go in there and lower some of those values, as I was seeing upwards of 37* w/out boost at 100-KPa. Oddly enough, no knock despite that. Gotta love SBC's...

 

Just some part throttle tuning today before the fireworks, I can't floor it anymore because all I get is a smoke show, and I don't want to **** off the neighbors. It's bad enough I am running an open downpipe as it is...

 

Let off at 8.4-psi of boost pressure, I need brakes up front desperately, damn car didn't want to stop. Something is off with the grams/second, I am telling you that the injectors are static, duty cycle is over 100% at 8-psi, O2's are reading 800's. She is pulling so hard at only 8-psi, 15-psi is going to be a nightmare to handle. I need brakes asap...

 

Brakes, now this is funny, you know what I worked on today, brakes. Dang things, never been happy with them, but am getting it narrowed down and working much better.

{edit} As for brakes, use a good set of pads, such as StopTech high performance street pads. Makes a world of difference.

The Air Flw is not in gms/sec, it is just a decent estimate used for various non-critical areas of the tune.

RBob.

 

Yeah, I am not gonna play like that on my street anymore, it was pulling very hard, wasn't expecting that at first from only 8-psi, then I had trouble slowing down. Gonna pick up a set of StopTech brakes this weekend. I calculate 410-RWHP at 100% DC, not bad for a stock throttle body and stock runners. I'd like to get a run in against Murphster with these injectors, but I think its time to install the bigger ones, then on to the stall converter which I am not looking forward to installing...

 

Oh Fudge - the guy that killed by the street sweeper? That sucks big time. My condolences.

 

Yes, that was him. Thank you so much for your thoughts. RIP Steve, love ya man... <3

http://www.nydailynews.com/new-york/...icle-1.1840982

http://www.newsday.com/news/new-york...eral-1.8595401

 

Small update, stall speed converter needs to go in asap, stock stall is killing it from a dig. Was sending RBob datalogs, and even he is like it's time to lose the stock 1600-RPM converter, and I agree, gotta get that in next. The siamesed TPI system revs well over 6000-RPM when I keep the throttle down, but I keep easing off the pedal because of the brake issue. Even with the new brakes installed, she scares the **** out of me trying to slow it down during boost, so I more than likely will be throwing on larger rotors w/brakes. Also, the 60# injectors go on tomorrow. I might be buying a local's HSR, but will know how that turns out later on tonight if he agrees to the offer I made him. Once those two out of three issues are taken care of; the converter, the injectors, I'll take it to Ida Performance to dyno it at 15-psi...

 

Took it for a quick blast down Route 9, running an 8 pound spring by the way. Was cruising in overdrive, floored it, trans downshifted of course, and it felt very very good, pulled extremely well. Duty cycle is down of course at 8-psi, whereas it gets pegged in first and second gear. IAT's again high because she was idling for awhile before this datalog, not to mention 90+ degree day...

 

What iat you using and where is it located?

 

I have two, the stock one (CTS) is still underneath the plenum and is hooked up, but I also have the birdcage IAT before the throttle body under the tube, not hooked up yet because I still have to extend the wires to reach it. A few inches before that birdcage IAT is the alky injection fitting. By the way, post up some pics of your new toy. Gonna be sweet to have another boosted 305 on here, as Dave (TwinTurboRoc) is missing in action...

 

Get the bird cage one running! Its ten times better than the stocker. Stock one gets heat soaked and doesnt react fast.

I got a thread in the members camaros board here with 2 pics lol

 

Same benefit to run the birdcage under the plenum on a stock TPI?

 

Probably. It literally does react like it should. I've run the MAT ones that are same as coolant temp sensors on my car and it may move 2-3 deg after a 1/4 mile pass and it reads surface temp air of hot manifold which is not accurate for whats going into cylinder. It was reading 150 after sitting with ambient in the 80's. The birdcage type plugs right in place and i actually can see temp rise over 1/4 mile like you expect. Same ambient 80's deg my IAT now was 95 at start of run and it 125 after a 12 psi full pull in 10 seconds. Thats the data you neeeed for boosted cars

 

What birdcage are you using or planning to use? I've seen some with metal cages and some with plastic...

 

http://www.diyautotune.com/catalog/g...tail-p-62.html

I run all diyautotune stuff. Iat and 3 bar map

I am gonna get another for my 305 car since its gonna be boosted

 

u can also goto any parts store and ask for an ait for an 89 2.8 camaro
the v6 f-bodys have the birdcage type sensors

 

I am surprised that 700R4 isn't junk yet. I ballooned two stock converters at 10 PSI with a bone stock 150K mile 1986 305ci TPI at 10 PSI (daily driver). One converter lasted 300 miles at 10 PSI.

Since ya are running on the street, what does the 1/4 mile button in the WUD report?

Yes, stock IAT is way too slow. Install it in a place where it makes sense relative to your ECM tuned IAT tables.

 

Stock converter is such a limitation it isn't even funny, was thinking about going with a re-stalled D5 TTA converter, around 2800-RPM stall speed, heavy duty lock up clutch, oversized needle bearings, furnace brazed fins, and hardened pump drive hub. Problem is I am not sure if the 200R4 and 700R4 converters are interchangeable. Then again might just be wasting my time with a re-stalled 12" converter. Would hate to spring for a PTC converter w/anti-ballooning plate for such a weak transmission as it is. Yes though, I'll try and get a 1/4 mile report from the WUD later on tonight when I get home from work, but the larger injectors are going in tonight also...

 

Napa has them as well...

http://www.napaonline.com/Catalog/Ca...100_0306514996

 

Yeah i'm gonna try my stock 129k mile 700r4 but dont think it will last long at all. Also dont want to spring for a expensive converter, hoping to find one used. I dont want any cheap tci, b&m, or similar style one. I just want a mild converter, 2400-2600

 

And probably more boost soon. That trans will be done before the end of the month. Engines with boost were my motivator to learn trans rebuild/upgrades.

 

I need to learn those too! Already had to rebuild the th400 in the other car. Burnt the hell out of it. Luckily no hard part damage and my trans guy covered it under warranty so no repair costs!
Now i know i am gonna need a 700r4 if i turbo this 305, and a converter. Found a few built trans for sale around. Just not in the budget yet

 

I think Street will be learning soon too. Your trans guy is good to cover that. The question is: How do you keep it from happening again? What do you do when it happens again or something else does?........and it will.

If you buy the paul zank video, and ATSG manuals, and read about upgrades online (or look at pkgs vendors sell) then you are good to go. The worst part is tools. I bought some cheap harbor freight alum bushing driver kits and had someone turn them on a lathe to do all the trans bushings. The kit for the 700R4 is expensive. Besides that all you need is some mig wire to make a lip seal installer, some plastic bottles & zip ties to make teflon seal resizer, snap ring pliers, and clutch compressor (make one or buy), small drill kit.

I wonder how street made out with the bigger injectors and quarter mile run.

 

Keep it from happening again? Dont race it lol
If it happens again? Quit racing lol dismantle and turn down the power
Lol so eagar to see what Streets 305 is gonna do. I just need to beat a 12.5 at 109 in summer air to be happy

 

Trans seems fine at the moment, not slipping, no burning, fluid looks good...

Patience Junk, patience, guess its been awile since you changed a set of TPI injectors, as it is a royal pain in the @ss to have to remove the plenum and runners each and every time. Main reason why I wanted that HSR, makes injector swaps a breeze, but I am sticking with the TPI for now as the deal for the HSR fell through...

Injectors are in as of last night. Changes to the bin have been made immediately after, and the VE continues to make changes while in Learn Mode. I know you guys wanna see a 1/4 mile blast in the WUD, but I have to make sure the fueling at 100-kpa is dead on first before I make changes to the BST tables...

 

ummm rob i have one if ya want it

 

i think i would just run a th400, 3.08ish gear, and a fairly tight converter.

 

That's the Chinese version of the HSR though Dave, yes?

Stock setting in the LB9 bin for IAC - Gain is 12.55% for both Park and Gear. Was getting some hesitation in the idle for about a second or two when switching from Gear back to Park , not Park to Gear, when the larger injectors went in. Went in and raised that 12.55% value 30% more, just under 17.00% for both Park and Gear. The hesitation from Gear to Park is gone, but then the RPM was overshooting (not oscillating, but hanging too long, not settling down fast enough), so I lowered those two values down to 14.00%, and now all is good with the idle transition both to and from Park/Gear. Not sure if I should touch the IAC - Gain Breakpoints, though...

Transmission seems fine. Not saying it will last forever, as it will give up the ghost whenever it decides to, but stop saying that its going to for crying out loud already, I know that it will lol...

 

yes it is and the funny thing is its nicer then the holley , out of the box both are the same , but the procomp one can be ported further, and the fabbed plenum is nicer then the holley cast plenum

 

Yeah for the planned power thats the way to go. The 700r4 is great street trans tho. Good for my build

 

Murphster stopped by yesterday with his 3.8 Turbo Buick powered C10, looking to give me a taste as to what to expect when we run. He just finished installing his alky setup, so he took me for a ride at 20-psi of boost. She pulled nice and strong, but in my opinion, not as strong as the GTA at 8-psi of boost pressure, and I am not kidding when I say that. When we got back to my house, I pulled the GTA out from the garage and said to him get in, took him for a ride up and down the block and laid into it. Gave him a taste of what the SBC felt like at almost just a 1/3 of his boost pressure. He was holding on much tighter than I was in his truck lol. By the way, he is now running a 62-1 turbo with larger injectors. It's gonna happen very soon, throw downs are a comin...

 

Wow this forum has been dead since I've been gone, nobody has made any progress with their builds? Anywho, had the GTA by my cousin's house to make some needed room in my garage, but I asked him to swing by this morning with it to get some work done to it. Nabbed a fiberglass twin turbo hood by the way, which is fitting because the car will eventually employ another turbo charger sooner than later, but the hood needs to be adjusted, the brackets need to be moved forward about a half an inch. Not sure when we'll be able to get her to the track, haven't had the time to work on her lately, unfortunately, but she pulls like a ****...

 

What happened to your custom hood?

 

I noticed that too lol. Guess its the slow part of the year. I am just waiting on getting my license back and running hardline for my oil feed, other than that no real updates over here.

 

I see you met my friend Steve in south jersey lol. looks good.

 

Still got it, but it is heavier now than before I touched it. Gonna just use it for shows, but I'm not going race with it. With that fiberglass hood, and bringing the battery in the back, she's hooking and lifting the front even easier now...

I know, I was just teasing. I like to use everyone else's build as incentive,so hopefully you guys start updating with videos soon. Get that license back first and foremost...

It's funny it worked out that way, was supposed to pick up up a 2 1/2" Harwood Cowl this weekend over in PA, but at the last minute my cousin sent me Steve's link. Very nice guy, but damn you guys live in seclusion down there lol. Turnpike was at a damn standstill too, took a freaking hour to get to Exit 8 from Exit 7, and I am being honest...

 

im a few miles past raceway park off 33

 

Missing in action?!. Just got alot of **** going on right now and i been staying away from the internets. Glad to see you got the car up and running. If i get some time this weekend ill run thru the rest of the post i missed. I just got back to finishing up my pos.

 

What up bro! GTA's been sitting for the time being, I have a TCI converter sitting next to the car in the garage still in the box, Transgo shift kit and vette servo, and I just can't get myself to install the damn things. I also have another fuel pump and have been fiddling with a twin pickup assembly, but I have had no incentive to get it all done. Car pulls like a ****, didn't officially run that truck with the GN engine yet at the track, but on the street it lays waste to it. Let me know when you wanna get together one night over in Queens or Long Island...

 

Any chance it will see a dyno for additional tuning? Only 2 months til tracks just about close... Will it see an et?

 

I can probably get it to the dyno over at Ida's Performance before I can get an ET. Not too much tuning to do other than to tweak acceleration/power enrichment a tad, as everything else is pretty much done. If Ida has no problem with open downpipe then it will happen sooner than later. How is your 305 coming along...?

 

Kinda took a back seat as i had to get the other car running again. Had some
Minor issues lol

So far i have a turbo, a oil pump, zz4 cam and my chip burning working. Plan is remote setup with code $59 for now.
But car needs 4th gen rear first and shocks/springs. Alittle at a time but not gonna finish it before winter. It will be winter project

 

Street ! U gonna get this thing on a track before winter ??!!!?!??!

 

I have a better chance of getting it to the dyno first. There is a track rental over at Atco Raceway next month, but I don't want to take the GTA that far away (about an hour drive), set it for 20+psi, then get stuck there if something breaks. Will stick with E-town because it is ten minutes away, only thing stopping me is they will have a fit because of the no cage issue, and they don't play around anymore because of the heavy fines. They freaking rip into you too, and you have to stand there and just take it without losing your damn cool, otherwise no more racing there ever again, and I kid you not...

Gonna at least push for the dyno w/video very soon, wanna see at least 600-RWHP at 15psi. If it feels good on the dyno, and the data looks good, and Ida has no issues, will up the boost to 20psi and see what she makes...

 

Thats a pretty big number for 15 psi but it should make steam

Theres a rental nov 14 at MIR, i am considering. Think its a vette group but others are welcome. From what i hear they dont mind fast cars tht dont have all the safety stuff. I heard they let 2 c6's run 8's with no cage. I only have a roll bar and no chute so this is a good chance to test n tune. My current track is also fairly lenient on tech

 

That is why I wish I lived closer to Atco Raceway. During a rental Atco Raceway will let everyone fly without saying a word, but e-town limits you to 10.0 with no safety equipment during a rental, but then it is a matter of rental cost which is why we don't see too many rentals at e-town, so we're all subjected to run on a regular day/night at e-town hoping they don't bitch and complain, but they always do. She should make 600-RWHP at 15-psi no problem, now I am actually looking forward to seeing if it does myself...

 

Exhaust is almost done. I took the Flowmaster that was already on the car, cut off the 3" intermediate pipe connection that goes over the rear axle, and just got rid of the 3" intermediate pipe itself. I opened up the orifice to 4" on the inlet of the Muffler, and plan on running a 4" intermediate pipe from the downpipe to the muffler. The dual 3" exhaust tubes coming from the Flowmaster have also been cut off, as I will be merging the tubes into one 6" oval (stainless) towards the center. Will post pics as soon as its done...

 

That sounds like its gonna be pretty nasty, cant wait to see it