Where does the tsp220 start to fall off?

 

I used to shift my TSP220 at 6500
I lock up in 3rd at 80kmh

 

That is a loaded question as it depends on the build. I would guess around 5600-6400 depending on the build. In the average Bolton early 5.3 it would be on the higher end above 6k for sure. In order to best take advantage of a setups power I want to shift right after the power starts to fall off. Sometimes that means 100 rpm after peak other times it means 3-400 after peak. Depends on how hard it falls off.

 

Gotcha

 

Would you guys think 310-320hp is a realistic Number?

 

We are talking rwhp or crank? This is going to require some ricer math, but I would guess to the wheels 300 is a touch high. 280-290 is probably a little more realistic.

 

probably 310-320 with stock wheels and tires and 290-300 with your 20's

I have seen several trucks with the 220 and ported heads hit 330-340

Should be around 380-400 at the crank

 

My tuner seems to think 310-320 as it sits?

 

I hit 276rw 328tq with stock cam, bolt ons, and 85lbs 20's 275/55/20 on a mustang dyno, so yeah it is possible to reach what he is saying. I like to undershoot the estimate, so one gets excited when it is 10-20 higher than what they were thinking.

It's really all about those track times than dyno #s

 

I agree
Well my goal from day one was 13.99
Its more just a driver but i may toss some drag radials on it just so i know