Gen 1 Modifications and results

[Daniel Cragin/DC Performance Inc]

We just finished a Gen 1 upgrade and here are the results,

Before:
Borla Mufflers, K&N filters and smooth tubes.

380rwhp 431rwtrq

After:
1.7 rockers and headers (Bellanger)

420rwhp 474rwtrq

The increase is substantial considering this is a simple bolt on upgrade and
did not include any tuning. We are going to do some air fuel changes and I will post the results.

 

[Sean Roe]

How much of an increase did your test show for just rockers on the G1?

 

[CMilViper]

Nice increase there!

 

[Daniel Cragin/DC Performance Inc]

We have not done a rocker change only test on a Gen 1. We see 10-12rwhp on the Gen 2 cars.

 

[Bruce]

What kind of money are we talking about with the rockers and headers?

 

[Sniper]

Could you post the before and after dyno for comparisons?

And what would you expect hp and torque wise to go to on a Gen I that already has headers, hi-flo cats, mufflers(404 rwhp and 502 rwtorque) and then adding rockers?