Power possibilities

[Hardway]

My TTA is about to go under the knife for a full on engine rebuild and upgrade. I have been reading through the threads trying to get an idea of what I could expect from build up. It will be as follows:

Stock GN short block (got a killer deal on it and it is done, bagging the TTA block for now)
Stock slightly ported TTA heads
100lb springs
212/212 cam
True Roller Timing chain
50lb injectors
TE-44 Turbo
RJC Power Plate
Stock Throttle Body
Gumpy's CAI
Rebuilt trans (internals and convertor unknown)
Stock DP
Stock and true legal cat
Flowmaster muffler
Stock rear end
A chip will be burned/tuned for the setup

I know this will be alot of guesstimation but I am just curious as to what everyone thinks.

 

[SouthBaySurfer]

Be careful. If you run TTA heads with stock GN pistons, your compression ratio will be too high.

 

[Razor]

Times in my sig were done on a stock block, stock crank, stock pistons, stock rods.

Roller cam, Champion heads, TE67 turbo, FM

Sounds like a mid-high 11 second combo. Limit is the turbo. Then cam.. then cheap heads.

 

[TTA850]

I agree with Razor it sounds like a mid 11 second combo, with the turbo being a limiting factor. Though I think before the cam and heads become a restriction maybe the exhaust will(and I wouldnt use a flowmaster on these cars).

Steve

 

[Grumpy]

I hope you guys are right about getting better heads over a mild set for more power :biggrin:

 

[clonegnx]

Just wondering where Ill be when I GO THRU THE TRAPS

I just purchased a te-44, 009 injectors, xp fuel pump, hot wire kit, terry houston downpipe, kn air filter, 160 thermostat, stainless headers, stock trans and stock converter, 342 gears

 

[clonegnx]

Champion Heads

Thanks for the info on the Champion heads Grumpy, I had a couple other people tell me I have to have better heads, a new intake, and plenum and throttle body I should get the Champion GN1's or I should ge. Any help would be appreciate.t Aluminum heads. This is a street car sooo not to crazy


Please I am new to GN's, I have big block Camaro's, Gto's, Chevelle's, but I love the stance and ride of these cars. So it time for me to learn

 

[Hardway]

Thanks for the info guys. I am aware the compression ratio will be higher and I may consider running an alky kit to help or run a thicker head gasket. I am also looking at a better DP but if I am in anywhere in the 11's with what I already have and what I am planning to do, I am happy. The car is a cruiser and backup vehicle... for now. In the future I will build the TTA block up with correct forged pistons, get a bigger turbo, a DP, and other goodies. The all stock setup currently has 200,889 miles on it and still pulling strong but a cam knock along with unexplainable reliability issues are prompting the rebuild.

 

[Quiky One]

Alky is still the best mod I have ever gotten. It is priceless. No knock anymore. Get a good set of heads and a different muffler and you will have a very nice setup.

Jason

 

[TURBO 6]

What's the muffler of choice? Anyone have a part number? I have some POS muffler on my car that needs to be replaced. It's an off brand Flowmaster style, glad I can open the dump whenever I need to.

 

[RatFink]

Hardway, Are you keeping the cat beacause of local emission laws? I ask becasue if you used a dump piece in replace of the cat you wouldn't have to spend money on a muffler. I use a electric dump pipe on a cutout where the cat used to be. It's alot fun to pop it open on an unsuspecting victims on a Saturday night cruise. The price for this would/maybe be about the cost of a intermediate pipe and a quality muffler along with having the factory tips put on the new muffler.
My car will still run a mid 12 second quarter with with the dump closed. There is a string of people on turbotransam.com putting together a group purchase for electric cutouts. But you may HAVE to use a cat where you live. Thought you may be interested in an alternative. IT's also fun to hear the turbo spool up when the exhaust is open:smile:

 

[Hardway]

Yes, I am keeping the cat due to emissions laws here in Austin. They have never tested a cat for true internals that I know but I don't want to mess with it. You are right, a test pipe and electric cut out would be sweet. Right now funds are a little low due to the cost of the build up already. If I can go in on the GP I will but I just don't know yet.

 

[SouthBaySurfer]

The 89tta.com site recommended a Walker Dynomax muffler. As it happened, my car came with a brand new one on it. I like it. Quiet at cruising speed with no drone. Nice rumble at idle and sounds healthy under acceleration. No ricey noise; sounds like a V8 at idle. I have no idea how good it flows, but if 89tta liked it, it can't be too bad.