Contour Enthusiasts Group Archives Forums Branches Southwest New Dyno Numbers

Yesterday, PanamaPat and I installed my 2-stage water injection kit. Today, AutoSHO and I stopped by at the dyno just to get a baseline of where my car is at right now. I really have not had time to play with and test the water injection, but I am holding commanded timing in 100 degree temperatures and driving like I want to blow the motor.

I made two runs and I am pretty happy. I'm trying to decide if I want to step down to a 3.5" pulley vs. the 3.6" pulley I am currently running. With this WI kit, I may have to run two nozzles for the second stage alone since the pump averages around 80 PSI because it surges, IIRC (rated at 100 PSI).

Anyway, here are the results overlayed against my modded NA results from just over a year ago. I showed good gains NA and boosted over stock (185whp) Next time, I'm going to have a slightly smaller pulley and rev the car upto 8,300 rpm for a little more power.

EDIT: This is at 10 PSI of boost.



All this made possible by a device called "TwEECer"

Is it me or is that a little lean? Non-intercooled I go for 11.5:1 and lower. Intercooled I stay under 12 if I can. Nice improvement over stock.

I'm shooting for 12.5:1. I'm not intercooled, but I am using water injection. I'm nots seeing any knock with this A/F ratio.

8300rpm?! holy chit, are the SHO motors that stout?

Freakin' awesome, man. What a contrast over stock!

Those are some good numbers! I'd like to see what you end up putting down once you've got it to where you want it