HP gains from adding ported heads to a Roe superchared 2nd Gen?

[speedracervr4]

Looking at adding either Gregg Good,Roe, or a local shop ported heads to my 10lb supercharged 99 GTS. Car already dynoed at 630hp/670tq with my current mods (ballenger headers,hi flow cats,corsa catback,water ****, VEC 2, and 1.7 jesel rockers) How much gain do you think I will get from adding ported heads? Is it worth the $$?

 

[Red Snake]

YOu need a good tune. I am making 660rwhp/710rwtrq (corrected) with the same mods that you have, except I have NO cats. With the ported heads and a good tune you should be able to break over 700 rwhp.

 

[speedracervr4]

Yea Sean at Roe Racing will be tuning it..Hes done my tuning in the past

 

[martyb]

My old car(Gen 1) was stock except for Roe 10# and made 525rwhp. Added PBJ Heads/Cam, water **** and went to 645rwhp, all with the stock Gen 1 exhaust manifolds. Added 1 3/4 TNT headers and jumped to about 675rwhp. In a nutshell, I saw about 120HP increase at the wheels with heads/cam.

marty

 

[speedracervr4]

That's a nice jump Marty!! Thanks for the input guys!!

 

[martyb]

Torque was nearly 800 at the wheels after the upgrade, it was a fun car for sure.