So I picked up a 2003 SB roller with a T56/ 3.90 geared IRS and the powerplant I have is a 9.7:1 teksid, CP pistons, 03/04 rods and crank topped with ported 9 thread heads. I have a complete ported stock blower setup and was curious on what blower would be best for a street car that I want to trap 135 in. Thanks for any advice.
Power-adder advice
- Thread starter Mack Verde
- Start date
Sounds like a stout setup! A big factor is going to be your fuel system and the fuel of your choice. I had a TVS on e85 around 22psi and was trapping 133/134. Your bump in compression and built engine will get you there easier than my stock 8.5:1 engine did. A 2.8 KB or 2.9 whipple I’d imagine would be in that ball park of 135 on pump gas with your setup.
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You would like to run at least 135 or not exceed 135? Most tracks make you 6 point at 135+ which may be factor
ballpark may need 700-750 whp to trap 135. With your spec on E85, about any blower should get you there, even a 2.3 on medium-ish boost
personally I would get a gen4/5 whipple 2.9 or 3.0. But don't be upset if you run a little bit faster!
ballpark may need 700-750 whp to trap 135. With your spec on E85, about any blower should get you there, even a 2.3 on medium-ish boost
personally I would get a gen4/5 whipple 2.9 or 3.0. But don't be upset if you run a little bit faster!
thanks fellas. maybe i should just look for a g4 2.9 and run 20lbs. should be a ton of fun with the 3.90 gears and the added compression. the car has a racecraft k-member so she’s going to be nice and light with that teksid too
That is darn good a base for the power level you're striving for. Keep us posted as you build your dream Cobra.
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