Thread: How does the GTP stack up to cars nowadays?

Originally Posted by JDrach

so you're saying a 3.4 pulley, headers, 1.9 rockers can run low 13's....

If you do heads yes.

Originally Posted by SF9777

Wow you guys all give tons of awesome info, and again thanks for all your guys opinions. This is great to know and now i just want to buy a comp G even more.

Oh do the Chevy impala have the same weak tranny as the GTP?

They all have the same crappy weak transmission

Theoretically the transmission could go out on stock power.

Invest in a transmission cooler.

Originally Posted by addzradd

Yeah, with about 200#s of useless crap removed from the car, a little porting and a good tune.

Porting heads is quite the part you keep leaving out...even in that thread.

These heads are awful from the factory and opening them up does wonders on the flow side...like 15-20% increase?

Yeah...expect a "common" 3.4, header/rocker car with a solid tune to crack off high 13's...maybe mid 13's with a good driver.

To answer the OP, they dont, sooo....

Originally Posted by matt5112

Cooler won't "correct" the weak clutches.

Relying on the stock in radiator cooler wont "correct" them either.

Beat the heat with a chiller.

I thought the 4T65 HD trans was nearly indestructible, yikes that kinda worries me. I use to work for a radiator shop so I know a fair bit about trans coolers and such. The biggest drawback to the Radiator based coolers is the fact that they rely on engine coolant to control the heat of the trans. Which means that the trans is forced to heat up when the thermostat is closed, in a cooling system, as well as the fact that it heats the cooling system up adding extra heat to the engine. Transmission coolers are actually fairly cheap if you can find a person in the business, the markup on them from the manufacturer to the end user is actually around 300%. Our $149 cooler was only $48 bucks my cost. I no longer work their so I can't supply them to everyone, but I am sure for personal use, I can still get a good deal on one for myself.

Side note the best thing a person can do for their trans, is take the time to pull the dipstick and smell it regularly. It will often start to smell burnt long before it turns into a dark bad colour. I say when you check your oil, or at least once a month, give your dipstick a good sniff. If it smells foul, its time to change the oil and get it clean. (yes that was suppose to be a bit dirty for you off colour people)

What's the difference in the GXP trans?

Originally Posted by Sudden

What's the difference in the GXP trans?

None

Wonder why they last a week behind a V8.

The 3.8L has 1 advantage over most other enigines and its called low end torque. No lie, I kept up with a butt hurt Houstonian driving a turbo 911. I am pretty sure he sucked as a driver because there is no way in hell I should have kept on him. I would say the GTP will stack up against many new cars, of course depending on what you plan to do with it.

I work at a kia dealer, Kia optima turbos may have power but they are not as practical as a gp because the interior is small and cramped feeling. Plus the exteriors still look cheap.