I flipped the switch and did a drag launch practice today and didn't realize I had 2nd selected instead of 3rd like I normally do and I noticed something peculiar. Normally with the TCC switch engaged I have TCC lockup available for 2nd and 3rd for better acceleration by having full access to the engine's max torque. Today my car pulled till 5500 RPM in 2nd gear and that was only because I realized my mistake and bumped it into 3rd. I tried again and once again I could pull it well into the red zone and I stopped myself because this is a first for my engine. I pulled it into 6k RPM with lockup in 2nd gear. According to the dyno test, I had only runs for 3rd and 4th gear, but both pulled similar curves and HP.

Here's the thought that's bugging me.

I think I've got access to more HP than I first thought and from the looks of the way the RPM pulls in 2nd I think I'm hitting a fuel starvation issue in 3rd. This is if you follow the curve linearly along the slope and extrapolate the rest and 6k = 200 HP. 6k RPM is my air feed limit since it can't process any more air that what flows at 6k on the inside. The only thing I can think of is fuel starvation in 3rd gear since its a heavier load on the engine where as 2nd is easier on the engine so it has more than enough fuel to push the power up. Also since this is based off actual running with wind resistance as a factor and helping feed my engine the air it may as well be 200 HP. Think my analysis is BS or does it have some merit and should be compared at the next dyno meet?

If that is the case than my next upgrade will not be an intake but rather a Holley 670 TBI to feed it the air and fuel it needs. A 200 RWHP TBI stock internals is nothing short of a miracle in my book.

 

6K=200HP doesnt work cause peak HP is not linear..YOu dont have more horsepower you have less TC slippage..Dont think too hard

Daz

 

ANd its not uel starvation either..Its lack of torque on higher RPM..which means lower horspower at said higher RPM..

Daz