Not sure if you have the right thread, but that is one hot looking Camaro...

 

Meh, figured I should update the thread after seeing that pic posted, regardless if it was a mistake or not. Joe, Justin, Dave or whomever, I'm getting ready to put the turbo back together after already having the shaft polished and rebuild kit w/bearings ready to install. Only one thing is keeping me from doing that, and that is the thrust bearing guides. One of them is collapsed down. Soaked it with WD40 plenty of times, but the fawker won't come up. Worst case scenario I'll send it to someone to get it done for me, but I figured I'm home now so why not get it done myself. Anyone have any ideas without butchering the face of the center section? It's the lower right one in the pic...

 

There is a complete procharger D1 for sale for cheap money on the forum.

Why don't you just buy that, and enjoy it?

-- Joe

 

I was just looking in that section, also seen a D1SC head unit for like 1600.00 that comes with three pulleys, but just the head unit. Says it's like new. I would just have to fab up the bracket, tensioner and crank pulley. To be honest though, won't be enough off idle boost for me. Would need an F1SC head unit, which is what the seller himself is upgrading to...

Was talking with Bison over from the Turbo Buick world, and he had a great suggestion. He said to just drill and tap for the three bolts that hold the thrust bearing down and be done with it, which is pretty easy to do. Got one last thing to try with that little de-pressed guide to see if it will work, if not, I'll send it to him to modify...

 

Ehh. There is a complete setup with intercooler for $1800. Bolt and go.

You have good headers and exhaust. Why muck it up?

-- Joe

 

Once you start throwing up vids I'm sure you'll change my mind immediately, as your blower is no joke lol. However, the D1SC is just too weak for me down low. I do realize there are people out there running insane numbers with them, but they're really stressing them out to get there. Here's a good example, not sure if he is a member on this board, but there is a sweet 91 GTA on youtube running a D1SC. Sounds great, looks great, but it is very weak during an actual pull in the car. It takes time for them to see 15-psi, whereas a larger blower like yours is instantaneous, like a turbo. I'll admit the system itself looks incredible though...

 

Gonna try to put this thing to good use soon too. That last video of the engine starting after a few months was taken with an i-phone 6 plus, and on the phone it is crystal clear. But when uploaded to youtube from the phone it came out horrible on youtube.

Hoping to have crystal clear videos with this thingy...

 

I dunno, I've seen quite the opposite. Most turbo cars are a little laggy, unless you use the transbrake leaving every stop light.

The land speed stuff is where turbos shine.

Do you really need to go 9 seconds? Is this a legit 9 second build, or a 9 second motor in an 11.49 chassis ?

My miniram has been giving me trouble lately. I'm kinda annoyed with the car.
That intake really should have sequential injection with cylinder trims.


-- Joe

 

Thought megasquirt could do that

 

MS2 won't do 8 cylinder sequential, only 4. Doesn't have enough injector drivers.

I don't wanna spend money upgrading to MS3.

-- Joe

 

https://www.thirdgen.org/forums/powe...-tpi-dyno.html

383 afr head 224/230 xfi cam d1sc car i did tune on. Big runner tpi car. 5 spd tko trans.

There is nothing lazy here. 2500 rpm off the hit already at 1-2 psi. 450 wtq there. Still over 540 tq at 5000! More response than most turbo cars but i never built a turbo car to come in that low of rpm. Most of us shoot for 3500-6500 rpm or so. Granted my tpi rear mount 305 was in 1-2 psi by 2200 until i took cat off and lost valuable heat energy

Also that blower had the typical linear boost curve. 12 psi by 6000. Something like 6-7 by 5000 ish.

 

That's pretty much what I've seen. The supercharged stuff is sweet usually off idle to about 6200-6500.

Most of the turbo guys I see they spool up late and make boost to 7000 (or higher) rpm.

That's probably why the turbo stuff works soo well for max MPH stuff.


-- Joe

 

With the rules being altered the way they were, if I am understanding this correctly... so long as the firewall and floor boards have not been touched, I am good down to 10.0 with just a five or six point cage, which I have no problem with, they're cheap enough and don't look that bad. Just want the engine to be capable of nines. I know it is, but knowing means little without the time slip. If it ever does see that number, that will be it. Won't have it set for that anymore, will just keep it at a friendly ten pounds of boost and enjoy 11's consistently until the next engine goes in. I had one 305 bite the dust because of too much timing and low octane, so I am keeping this one at no higher than 15* in boost. I think you should have stood with that HSR replica that you had...

 

That's on a 114-LSA though, right? I'm on a 110-LSA, which is why I am sticking with turbo. I'd have to change everything in the valve-train to take advantage of that blower. I see he is using the EBL-P4 as well, very nice. Those numbers that he put down are very very good, but then again he's running a 383 with much bigger aluminum heads in comparison, any track video's?

 

No, never did hear back any updates. Probably 113-114 lsa. To be honest i wouldnt think a 110 lsa would help a turbo either so i'd change out either way

 

Nature of the beast. You want decent big power, you need turbine size to pass flow and turn rpm which pushes boost threshold up higher. Auto cars with proper converter doesnt hurt anything. My old twin 72's started to come in by 3600 ish and be making good boost by 4500. Tbrake 4200-4400 i'd see 5-7 psi easy and quickly. With 4500-5000 ish stall, there really wasnt alot of lag. 3200 ish stall and car was a slug til 330 ft mark lol. Its all in the combo. I could turn 7200 and needed that rpm for 170 mph with 28" tires

 

We had a lengthy discussion about that on the Turbo Buick boards, which is where this whole idea started with me years back. Almost positive that the stock LC2 engines came with either a 108 or 109 LSA, and most of their aftermarket grinds from Comp come with a 109 LSA for those Buick engines. I guess I could have went wider than 110, most certainly would have had a more enjoyable idle with way more vacuum, that's for sure...

 

With the way v8's fire and cylidner pairing for turbo manifolds i think tight lsa higher overlap cams dont work as well as they could in theory. I have seen on tight lsa cam do work in a 383 single turbo car but who knows what it would have done with a wider lsa cam. I dont think v6's have the cylinder cross talk issues v8's have. Making overlap window a critical design point to avoid either reversion or blowing charge out exhaust side

 

Believe me, if I wasn't relegated to a flat tappet camshaft I would have went with an entirely different grind. I needed to allow for sufficient lift without exceeding its' limitation, which with the 416 heads is pretty substantial, while at the same time I wanted room for RPM to grow up towards the 6000-RPM range. The cam pulls that high without boost, but with boost valve float was an immediate result. LT1 springs went in months back, should help some over the stock style garbage...

 

Well three months came and went, and I have been working my @ss off lately. Still have the red bird in the video below and if anyone wants it you can have it for two hundred and fifty bucks, cuz it's leaving very shortly. That is what a local guy is offering to take it for scrap, so if anyone wants to build a hardtop as a project, lemme know.

Been driving the GTA naturally aspirated since, working out a few bugs here and there. Been chewing RBob's ears off as well lol, sorry Bob lol. Been looking and looking for a tiny little quirk that bothered me in the tune, and it turned out to be the IAC itself. Just a start and stall issue when cold, but rather than clean it, I just replaced it. Idles sweet, and rock solid. Started it up a little while ago just to get some heat into the engine because its been a few days since I drove it around due to a leaky front seal, which I should have replaced when I installed that no frills timing chain cover from Advanced Auto a few pages ago. But that's taken care of now as well.

Welded the downpipe v-band flange this morning, got it back to the stock location in terms of where it hooks up to the y-pipe, which is now a hacked SLP y-pipe that was converted to a single pipe to the catalytic converter bracket. Need to find a new picture hosting site, as photobucket seems to have changed their policies. Still planning on getting this thing on the dyno pre-turbo, so hopefully that will happen very shortly. She pulls strong though for a naturally aspirated 305. Anyone local wanna run me on the street pre-turbo...?

- Rob

 

Photobucket is very weird lately as the pics on the other pages are showing again. I'll post the picture of the modded downpipe and if it doesn't show due to their third party hosting bullcrap then I'm giving up on them for good. It's no biggie, I just rerouted it back to the stock location to meet a modded SLP y-pipe, or what is left of it. These cars are now exempt from inspection, so I'm not going to bother with a gutted catalytic converter anymore, but at least the cat back options are still there. Tired of fabbing things up from scratch, especially on the exhaust side, so any 3" catback will do. Still looking to run someone pre-turbo on the highway just to get some data one night. Very thick welds I know, will definitely grind them down with a disc before coating them...

 

So, any updates??? Been waiting years for this build! After you get everything up and running. And make a 9sec pass. Do you plan to switch out the motor? Or pound on it until it grenades??

 

I honestly am not even sure I want a 9 second pass anymore, I'd rather shoot for a 135-mph trap which is basically the same thing, without punishing the trans and rear off idle. A 1/4 mile pass only tells the owner how good his launch and sixty foot are, but trap speed shows the real story. Not sure at this point anymore what I am going to do, but if anyone from New York wants to run me on the highway for kicks, I am more than down. Been racing everyone locally and enjoying the car for what it is lately. I told Jonathan I would run his LS1 swapped 3rd gen with my anemic 305 pre-turbo, but I never heard back from him about that, hehe lol. Turbo's going back on now anyway, as I got my headers back from being coated recently. Torched TA inspired me...

- Rob

 

Done with photobucket, will just update with videos from this point forward. Uploaded this video a little while ago onto youtube, but I already have one long tube header off since then. I hope I have enough intake tubing left because I used some of it for another project, but I'll improvise either way. I am really eyeing the On3 Billet Wheel turbo's, but while I decide if I should pull the trigger on that or not I will throw the other turbo I've been using back on it for now once I get the turbo headers back on...

- Rob

 

I use Imgur. It is a perfect image hosting site.

Sounds like you're winter should be eventful with this car. What are your main goals you want to get done with this?

 

I think the main one would be just to get it done. Car just sat in the garage, and would only come out when I was inspired to finish it, which rarely happens anymore. Building it mainly for the street at this point, will only see the track when it's time to see either the original ET I had in mind, or its' trap; 9.99 or 135-mph. Other than that, street car all the way. Prolly the last car I ever own with this big of a camshaft, definitely not needed. After I have my fun with the 305, its bulletproof turbo LQ4 w/4L80 time by next Spring...

- Rob

 

I think you should be able to hit your trap. What cam are your running?

 

You want my cam specs????

Why not just ask me what my ATM pin number is while you're at it lol... j/k

It's a Lunanti grind, duration in the 230's, 110-LSA...

 

Dedicated the whole damn weekend to the GTA, spent a lot of time fixing areas that bothered me when I first had the turbo system on awhile back. But all in all I am happy that she is back to being a turbo car again, just need to decide if I am pulling the trigger on the On3 Billet or not, I'm really liking that turbo. Empty exhaust housing was for mock up, and despite that it is still quieter than the LT headers w/open y-pipe...

 

Sounds good. What headers are you running, and how much boost?

+1 for the Kid Rock playing.

 

Haha, thanks, I have that and Devil w/out a Cause on a playlist I listen to when working on the cars. Need some newer tunes though. I actually made those turbo headers out of an old shorty header system from Edelbrock years ago, they held up very well. Sounds rough though because of the open flange, it'll sound sweet when I get a turbo on there mated to the full exhaust. Even if I pursue the On3 Billet, I'll still run the old turbo for the time being to get some tuning in there...

 

Good Stuff! Can't wait to see this finished! Should make a Killer Little road warrior for sure!

 

Forgot to answer this one, I'm only running a 2-Bar MAP sensor, but after years of playing with boost you learn quite a few things, and 12-psi with the amount of flow I am getting from the ported heads, intake and camshaft is going to flow a lot compared to a more stock oriented engine. So although I am limiting myself to boost pressure, there will be enough power in it to reach my goal, most definitely... if it holds.

Hey, I need to get my big shaft polished (yes, that sounded weird lmao). Seriously though, I'm going to order the On3 w/Billet Wheel, but in the mean time I need someone local to polish and re-balance a big shaft from a used turbo for me while I wait for the On3. Do you know anybody? Long Island is fine, so is anywhere in NYC and New Jersey. Just want it done correctly. Thanks man...

- Rob

 

Ran a quick update yesterday, sadly not much done though since the last video. The alternator I bought from AutoZone was bad so back it went, and the 2-Bar MAP sensor was ordered online because I felt like I was speaking a foreign language trying to get it through to them that "I know" my vehicle didn't come with one lol. Didn't trust them anyway after the alternator fiasco. Was such in a hurry to get out of the house yesterday I forgot to upload it before I left...

- Rob

 

Update;

 

You started it without an oil feed to the turbo??

-- Joe

 

Joe, I heavily lubed it before I started it, I did the same thing in the video before this one. The driveway is at a 20 to 30* angle, and I didn't have it in me to push the car back in the garage, especially with the driveway iced up from the snow. The turbo is okay, only ran the engine for about thirty seconds. I drove it right into the garage right after phone stopped recording due to limited space, didn't even realize the phone stopped at that point to be honest...

- Rob

 

Was going to install the oil feed and return lines today for the turbo while making a new 5/8's fitting for the fuel pump block off plate, but it's just too cold out. I did get to remove the coolant and wiper fluid reservoirs though, and hit them with some high temp textured black paint. Looks much better than stock, and definitely adds to the Black and Red color scheme I went with under the hood. Car definitely feels naked w/out the GTA emblems, so getting ready to put them back on. Would like to touch them up some beforehand though, but I forget which paint is used. Has to be acrylic though from what Im seeing, so maybe the hobby store can hook me up with a match. Can't find the damn nose emblem, might have to grab a replacement off of ebay. Should have some good videos up soon of some tuning and street pulls finally, and will put that Vivitar go-pro to good use. More soon...

- Rob

 

Weather is still hitting New Jersey over the head with a sledgehammer, we're expecting three to four inches of snow today, but they're promising 40-50 degree weather tomorrow, but it's still going to be a mess out regardless. Meanwhile I still need to get the freaking oil lines for the turbo on asap, and it's still just too cold to do anything. Just looked at my last post and I realized the second picture didn't upload, had one of the coolant reservoir after coating it, I'll add it below. I like the way the texture of the paint came out. I did that because the BOV is going right underneath it, and I wanted Black as it will make the BOV stand out, which of course is Red...

- Rob

 

Wow 40-50 weather is when I keep the shop locked down for another day.. I need 60+ to get motivated!! #floridalife

 

I can only wish we had Florida weather up here, it was five below zero not too long ago. It's ridiculous. Hey Steve, I think it's time the two of us to step up to a larger downpipe. I know you've been considering one, but now I'm thinking to get it done before Spring. The 3" I have on there now is just too restrictive. I can probably fit a 4" downpipe following the same routing as my current one, but I would need to cut and section the heater box, as believe it or not that is the only area that is stopping me. The number eight primary tube, the frame, and the firewall are wide open, no notching needed elsewhere, but 4" is as big as it will go, unfortunately. I refuse to dump the exhaust anywhere else other than the rear. One of the guys I know from Turbo Buick land is installing a 5" downpipe following the stock routing, and after seeing that I was immediately sold on a larger downpipe for the GTA. Also considering a 4L60 or 4L80, but controlled via a TCI standalone setup. We'll see, but the larger downpipe is a go though. Check out this bad boy, been following his build for additional motivation. Might even be able to run him this summer... if the planets align, of course lol.

- Rob

 

LOL. it was -3 up at my dads house in Maine last weekend. We found 4-5" of snow/ice frozen completely solid when we got up there Saturday afternoon. Now that ***** cold! 40-50* id be out in the yard in a t shirt.

 

Oh he has no idea. I think you, Joe, Justin and myself can relate to this freaking weather being where we are, it's just too damn cold out. But then again I'm sure you have those guys over in Canada right about now reading this and laughing at us saying the same thing we're saying to Steve, as they'd be out in shorts in 20-30* weather having a bbq lol...

- Rob

 

Snow!





Race car trailer for summer toy, snowmobile trailer for winter one lol

-- Joe

 

Joe I feel for you when the weather gets better man, that must be a LOT of grass to cut with the lawnmower. Hope you have one of those mowers that you sit down in otherwise I'd lose my freaking mind. We got hit with hail today, but turned into rain soon after. I would have preferred the snow, because it's like a Hockey stadium out there now...

- Rob

 

Mower? I've got a team of Guatemalans that show up every other week.

We got about 6 inches, but then it turned to freezing rain. Kinda sucks. Hopefully we will get a few big storms so we can get some more sledding in.

I'll think about the car again in another month or so.

-- Joe

 

Had a bad experience years back with that, something went missing from the yard. Now I just cut it all myself. It's freezing out today, but we're getting better weather over the weekend. I have to weld the fitting to the blockoff plate at least, so freaking lazy to do it when I get home. Haven't touched the EBL-P4 since putting the turbo back on, and I need to get in there and start tuning. No point doing any tuning of course with the intake not hooked up to the turbo yet. Engine is way too rich down low, I noticed it spitting a little where the downpipe couples to the exhaust housing, but no fuel in the oil pan. I don't even want to run it for five seconds anymore without tuning it, so I'm taking it easy on the videos until it's ready to make a decent street pull. E-Town is out of the question at this point because they killed the dragstrip, and I hate driving to Atco Raceway, so I might just bring it to Ida's Performance for a few dyno pulls and have my fun over there because they're actually closer to me than E-Town, literally ten minutes away...

Get that tranny situation of yours fixed!

- Rob

 

You are two hrs from cecil, a damn good track

 

Yeah, we took a ride there a few months ago to spectate, took about two to two and a half hours. A lot of standing by the burn out box though, not used to that. Much closer than MIR though which took us almost five freaking hours because we got lost. I'll go down one weekend though if you wanna check out the car, but to race me would be ridiculous lol. I will definitely go to Atco Dragway though, was only complaining about going there because those who go there know that it's literally a speeding ticket waiting to happen on this one particular stretch of road. Entrapment if you ask me. Island Dragway is also in New Jersey, but I guess I got spoiled with E-Town being ten to fifteen minutes away. Beyond pissed that they closed the drag strip...

- Rob

 

We spend alot of time end of year nov-dec at MIR and sometimes cecil cuz they stay open into dec. been fast at both tracks but we like mir better