01 TT TA

Hi guys! This is my first real post. Your input will be greatly appreciated. I will keep it shorter from now on, I just don't want to leave out details you might need to know.

I bought a car that some of you might recognize as it was for sale on this site. Anyway, I am new to turbos and this kind of power. Please help me figure out what is limitting my car.

I got up to 18# I think but I might be able to get a little more boost. The car is overheating a pushing coolant out so replacing the head gaskets might help out. I made 800 Hp on Q-16 fuel at 16 lbs. but I think it should be making a little more power from what I have seen other cars running. I also realize that track times are all that really matter but I won't be able to do that for awhile. Details...

Engine:
408 iron block
Twin 70mm Turbos (Master Power) not sure of the model
Custom ground TT cam
Stage III heads from Livernois Motorsports (just replaced the springs)
Truck coils with MSD wires
FAST 90mm Intake
FAST 90mm Throttle Body
Electric Water Pump

Transmission:
TH400 w/JW Trans Brake and Deep Trans Pan
Neil Chance Racing Converter
3.5" Aluminum Driveshaft
TCI HD Flex plate

Rear End:
Moser 12 Bolt w/Moser 3:73 Gears
Moser Aluminum Spool
Moser 33 spline Axels
BMR Weld On LCA Relocation Brackets

Suspension:
All BMR
QA1's
everything else you can think of

Fuel System:
Aeromotive Eliminator Fuel Pump A1000
Magnafuel Fuel Pressure Regulator
-8 & -10 AN Fuel Lines Steel Braided (complete set-up tank to rails)
2 Five gallon Fuel Cells
Speed Inc HI-Flow Rails w/fittings
96lb injectors w/driver box

My thoughts:

I know that that TH400s suck on the dyno. How much am I losing through my drive train?

I'm using the stock 6.0 manifolds flipped forward. Will they support this much power?

Is my A1000 fuel pump enough?

Will wrapping the exhaust and turbo keep the air temp down enough to make a difference?

What do yo think? Sorry again for the length.

Old Geezer

iTrader: (3)

What are your datalogs saying?

hellbents10

iTrader: (10)

Well you describe two pumps in your list you call it an Eliminator and then a A1000? Which is it really, is it black or red? The red a1000 will be taxed at 800whp through a th400 for sure.
Q16 with a good tune and enough fuel should net you about 900whp before the stock ported castings start giving you trouble. Occasional romps to 1100 could be sustained with good prep work and an aftermarket casting like an AFR, or TFS head.

'Trust'

iTrader: (24)

Did you get the car from a guy in Oklahoma?

EDIT: Nevermind, saw your sig pic, thats down the street from me, lol. I always thought twin 70's on a 408 would be a tad inefficient.

code4

iTrader: (30)

Exactly! Do not run this car again without proper data logging with wideband. It may be pushing water for other reasons.

Also I would not be worried about dyno racing.

'Trust'

iTrader: (24)

Good point, and especially with a TH400!

01 TT TA

Sorry for the delay guys, I was out of town for awhile. Thanks so much for the help. I will ask my tuner about the datalogs.

The fuel pump is the red one so that is definitely getting close to its limits. What would be a good one for my setup?

Are my turbos not right for my application?

Ya I bought this car out of OK. The seller was very honest about the car and I have been very happy with it if you know who he is.

Also, to help me catch up to speed I was planning on going to the Frank Hawley drag racing school. Any thoughts on that? Is it worth it for a newbie?

Again sorry for not getting back.

cablebandit

iTrader: (37)

prolly not enuff fuel and/or too much timing. swap to c16 and that will extend your fueling a LITTLE as you can run it leaner. leave it at 15 deg of timing and enjoy it after you swap gaskets and datalog

OUTLAWZ RACING

iTrader: (9)

I would drop the 70mm turbos in favor of some tc 76. You should be no where near pushing water. That th400 is killing power but I really think your problem is back pressure. Hows the exhaust done? Ist a free flowing down pipe? I.e a open cut out style? To much back pressure will float the valves. I think if you let her breath better she would gain alot.imho.

01 TT TA

The downpipe is like you said, free flowing. I have electric cutouts installed. I was more concerned with the stock manifolds being the limiter. What are they good for?

I will definitely put a bigger fuel pump on and have it retuned after the head gaskets, but I think for know the turbos will have to stay.

Also, is it worth it to do the thermal wrapping on the exhaust?

01 TT TA

Also, is the th-400 not good for this setup? It seems to be popular. Someone told me that they suck on dynos but kick *** on the track so I will hope for that.

98Camarod

iTrader: (43)

the manifolds are fine for your power level, there are people putting down BIG numbers with them. The th400 is what is used to get good track times, but it hurts your feelings on the dyno. Wrapping the exhaust will help spool time and keep the underhood temps down.