Finally got all my **** together, roughly tuned and (most) of the qwerks worked out. First few WOT rides were scary, first blew 2 rockers off, then had multiple vacuum caps blowing off and even blew the charge pipe off once. Car is running at 9psi right now.

1985 LB9 block, rebuilt hyper pistons recond rods - basically stock.

Comp cams 212/218 with 115lobe sep, .444 lift.

Ported L98 heads (64cc) with guideplates, studs and 1.6 roller rockers.

Ported TPI base / plenum, stock runners

Adj FPR with Ford 24lb SVO injectors

Snow performance Meth injection.

BBS Single turbo setup, 3" downpipe with AEM Wideband and cutout

Pics!!












Enjoying it while I can, got Mich Tech bill coming up, might have to part with it.

 

so how do you change plugs on the pass side now? Other than that it looks amazing.

 

The downpipe has a clamp where it connects down by the transmission. Undo the clamp and pull the downpipe out and from there its a cakewalk. The A/C delete box helps a ton with that. I was even able to get the bulky *** connector for my compression tester in every cylinder on that side.

 

You need the bov befor the maf sensor... other then that

 

The car is an automatic so the BOV is hardly ever used. The only time I see it being used is perhaps at the end of the 1/4 mile when you let up.. but the momentary richness is not an issue.

Dunno.. the long term plan is to get a megasquirt or convert the ECM to '749, so hopefully that MAF wont be around too much longer

 

What type of maf are you using?that looked alot bigger than stock plus does it have a stock computer?if so how are you running that much boost? thanx

 

How much time/money that cost you? Id like to do something like that to be different from all the 350's

 

When you got WOT and then let off the car doesnt stall or shut off with the BOV after the maf? my buddy's car had problems with that when he put the BOV in place of the recirc. valve.

 

Stock MAF, stock '165 ECM. I handle the fueling through the PE vs RPM table as the MAF maxes out fairly quickly.

About $1,500 and a lot of learning along the way.

Haven't had any problems with it yet. If I had to take a guess I'd say its because the MAF is far beyond maxed out most of the WOT pull, so when you let off its just going from its 254gms/sec maxxed out value to somewhere lower on the chart. I guess it would probably kill it if the MAF could read to 500gms / sec and then it dropped from 500 to 200, but going from 254 to 200 is a lot less shock if you get what im saying.

 

Wow thats not bad, I would have thought it would be more, but Im not really mechanically inclined so It would be alot of learning and im not very patient haha. Any power numbers?

 

any turbo specs??

 

please let us know as soon as u get some dyno info or track times with the new setup

 

Looks great! Too bad about the ac delete, I live in Kansas and that would be miserable in the summer.

 

I actually did the A/C delete before I even had the turbo... the thirdgen A/C setup is a terrible design and I hated it. Made everything on the passenger side inaccessible. I work on my car way too much to deal with that crap.

 

nice looking setup!!! i would recommend using rubber instead of silicone on the charge pipes. and put some small zip ties on those vacuum lines and caps. i run 20psi on my shadow and never had a charge pipe pop off with the rubber.

 

set up looks great, email or PM me please about your kit,
kburch5647@yahoo.com

 

I wound up using the next size too smal vacuum cap for each nipple and slowly heating it up with a propane torch until I could just barely get them on. Theyre not going anywhere now!

As far as the charge pipe goes I believe its because I still have a screw type clamp on that one and need to get a TBolt style clamp like the rest of the pipes.

 

Whats the specks on the turbo

 

It's a 61mm wheel with a T04s .70 A/R compressor housing.

 

Have any more pics of the turbo headers/crossover?

 

Nice work. I'd like to know what you are using for the turbo exhaust manifold as well.

 

The turbo header is a BBS single turbo header.
Heres some more piccys for you guys:

 

Might be the location of the MAF and the turbo thats allowing him to run an open blowoff. My SC'd car when I'd let off (MAF before the SC) it would die as soon as the blowoff opened up.

 

Go for the 749. It works great. Im very happy i didnt spend a ton of money on an aftermarket ecm setup. My car drives like a factory turbo car. By the way, your car looks good. Same header as mine.

 

sweet car did u buy the bbs manifolds before they quit making them?or did they make u a set for u. I wish they wouldnt have stopped making them

 

That setup looks great. Some lacquer thinner on the pipes for cleaning followed by some hair spray for stick might keep the pipes from blowing off. T-bolts would fix it also or some small welds to form a lip at the ends.

With a Wideband you can fudge the MAF tables up to a point for boost. There are tricks you can play with the code & tables for the over-fuel upon left-off. MAP systems also work well. All systems have weak & strong points.

92RS(real slow),
A few people mention that they wish BBS still made a manifold. BBS has said many times to email them if someone is serious aobut buying one. Most of the time it seems that people just want to talk about buying one....kind of like a comfort blanket...and wish it was there if they ever wanted to buy one. Send BBS an email.

 

what did you do for your PCV system . MY BBS kit is being put on right now . I was going to use a catchcan then run it to the intake pipe. I just got my headers ceramic coated ( turbo is aswell) . I too am going to use the MAF ( 165) setup to get it running ( only running 4 psi for now ...to tune it ) PE vs RPM is all you tuned so far ? How does it all work at part throttle , etc .

PS ...congrats on your car being in GMHTP TurboTPI

 

For the PCV both valvecovers have breathers now. Eventually they will both get changed to hoses that go to a catchcan with a breather.

Originally I just left the drivers side in with the check valve and the passenger side was a breather but this lets un-metered air into the intake which whacks up your tuning.

 

do you have a wideband o2 gauge? i dont see how you could have a good safe AFR under boost, i had to bump my PE way up on my SD setup and had the FMU set to max, this was with 30# /hr injectors on my 305 TPI procharged with 10psi of boost, now i'm running the 7749 code with 42lb/hr injectors what a difference, cant wait till i hook my methanol injection back up, but good work, looks good.

 

AEM Wideband on the pillar

 

Looks good Matt......I still have that tuned chip in my garage....from all of my moving around I never sent it out...You still want it?


The only thing on MattoDooms kit from BBS is the turbo manifold.....I fabbed everything else up.....And I tig'd most at work except the crossover which was mig'd with my crappy mig but it works

 

I've wasted a couple lunch hours looking already: How loud is it when the wastegate starts venting in the engine compartment? It doesn't apear to be plumbed into the exhaust. Keep in mind I'm older and find N/A flowmasters too loud.

 

With the cutout open you don't really notice it, but when you putz around with the cutout closed you can hear it. It's not ear shatteringly loud, but it just sounds BAD. Sounds like a really bad exhaust leak. One of my goals is to plumb it back to the downpipe, and I recommend anyone else do the same.

 

another thing you could do is just fab a "downpipe" just for the WG about 8-10 inches with a "turndown" on the end, sounds much better that way though going to the turbo's DP is more desirable, but requires more work

 

Just wondering if you had any power numbers yet?

 

WOW
Your GTA looks just like mine intake color and everything, except gauges and window tints... But mine is a little more beat up but still looks good from a far. I had the MAF setup in my car also and hated it. I will say the same about converting it to 7749 ecm. Alot better than the MAF setup.

awesome car.

 

question for anyone that knows it, how would you convert a 730 ecm to a 749?


TurboTPI, you are running a 10bolt 3.23 rear and havent had any problems with those hp numbers? do you only run street tires?

also, does anyone know what stock exhaust manifold it is that you modify (flip upside down and modify) to work with a turbo?. i read about the manifold a while ago, but cant remember (C4 maybe).

twin turbo is the goal

 

Zion,

PM sent so it doesnt Hijack this thread with info that doesnt pertain to his post.

 

TPI383, could you please send me over the same PM (sorry to hijack)....

 

Me three?

 

Shoot me a e-mail guys.
Chris at cecoatings dot com

I'll just send the pin out and other info I have.

If matt wants I can post some info and links here also.

 

Very sharp looking car. So have you had any drivability issues or fuel problems with the car? Always curious how well the mass airflow cars run with turbo's. I am sure you will put some good numbers down.

 

PM sent . I need the right pinout infor ..there is two sets of it in the dfi/ecm board.

MAttodoom.... congrats on the setup man! Mine is soo clost to being in . I just need the oil lines ran , fuel line , intake ducting and exhaust welded up. Then it's in . I too am changeing from 165-> 749 .... I am curious about how it's ran with the MAF. I am only starting it off at 4 psi for now .

 

awsome car!