Installed: EvoMS V-Flow and GIAC 93 Octane ECU Upgrade
#17
#18
I just finished developing some flashes for my 99C2 a few days ago that work in conjunction with a modified EVO intake.
When I started with my engine it was making 245 RWHP on my dynojet as a bone stock 55,000 mile car/ engine. The only mods it had was our spin on filter adaptor and the LN Engineering IMS retrofit bearing.
Last Saturday after optimizing the flash, modifying the EVO intake and adding a new under drive pulley I put down 282 RWHP from an otherwise bone stock 3.4 engine... If I have time tomorrow I'll dig up a series of plots depicting the evolution of the engine's performance over a two week period of development.
When I started with my engine it was making 245 RWHP on my dynojet as a bone stock 55,000 mile car/ engine. The only mods it had was our spin on filter adaptor and the LN Engineering IMS retrofit bearing.
Last Saturday after optimizing the flash, modifying the EVO intake and adding a new under drive pulley I put down 282 RWHP from an otherwise bone stock 3.4 engine... If I have time tomorrow I'll dig up a series of plots depicting the evolution of the engine's performance over a two week period of development.
#20
Anthony, thanks for sharing. You have dicovered the same thing that I did. The addition of the EVO CAI and a sport exhaust transforms the character of our cars. I have done every N/A mod possible on my 996 (except for some of Jake's newest additions) and I am very pleased with the results. This is my second 996 that I have had these mods installed on. I bought most of my mods used, for about 50% of their new price. I have always thought that the performance gains were significant, but I was unwilling to pay for before and after dyno runs to prove the gains...they made me happy.
Jake thanks for sharing your dyno results. It is nice to see someone that is applying traditional hot rodding techniques to our engines, to improve on what Porsche made. I never bought the common belief that the same N/A performance modifications that work on everything from Mustangs to Ferraris, won't produce significant results on our cars. Please keep up the good work. I plan on keeping mine for a long time.
Jake thanks for sharing your dyno results. It is nice to see someone that is applying traditional hot rodding techniques to our engines, to improve on what Porsche made. I never bought the common belief that the same N/A performance modifications that work on everything from Mustangs to Ferraris, won't produce significant results on our cars. Please keep up the good work. I plan on keeping mine for a long time.
#22
Additional note... I would be very careful running your motor up to it's new limit of 7600 with stock internals especially in 4th or 5th gear. Your torque curve drops off around 7,000 anyway, so why stress out the internals....
#23
If I'm hitting the rev limiter (which may be 7,400 RPM actually) in 4th or 5th gear, I'll be losing my license, so it won't matter if my engine is in pieces.
Last edited by adg44; 08-13-2009 at 01:34 PM. Reason: typo
#27
I have your mods on my 3.4 2000 996 plus the RSS Plenum and it makes a difference...The sound of the Evo intake and PSE excites the senses and greatly increases the driving experience....Next I want to add a supercharger but am waiting to see what happens with the economy.....
#28
Modifying the Evo intake? What did you do to it?
Also, when you guys post your dyno numbers are they SAE or raw numbers?
Also, when you guys post your dyno numbers are they SAE or raw numbers?
I just finished developing some flashes for my 99C2 a few days ago that work in conjunction with a modified EVO intake.
When I started with my engine it was making 245 RWHP on my dynojet as a bone stock 55,000 mile car/ engine. The only mods it had was our spin on filter adaptor and the LN Engineering IMS retrofit bearing.
Last Saturday after optimizing the flash, modifying the EVO intake and adding a new under drive pulley I put down 282 RWHP from an otherwise bone stock 3.4 engine... If I have time tomorrow I'll dig up a series of plots depicting the evolution of the engine's performance over a two week period of development.
When I started with my engine it was making 245 RWHP on my dynojet as a bone stock 55,000 mile car/ engine. The only mods it had was our spin on filter adaptor and the LN Engineering IMS retrofit bearing.
Last Saturday after optimizing the flash, modifying the EVO intake and adding a new under drive pulley I put down 282 RWHP from an otherwise bone stock 3.4 engine... If I have time tomorrow I'll dig up a series of plots depicting the evolution of the engine's performance over a two week period of development.
#29
#30
Instructor
Joined: Jul 2009
Posts: 245
Likes: 0
From: 996C2,6sp, Fister-d mufflers, K&N CAI, Savannah, GA
i have looked under my trunk lid to see where the opening to draw air in is for this system. (above the air filter) i see there is a seal around the top of the filter box to seal aginst the trunk lid? but why does it do this?