Well i dyno'd my s2k yesterday, i have a 2003 with a full f22 swap out of an 05' with the stock 03' ecu.

20k miles on the motor and just a cold air intake.

I made 219hp and 156 at 8,100 rpm

My AFR's stayed at a ateady 14 never more than 14.8 still lean.

Run conditions where 88 degrees 33% humidity

Now i need to get a 00' ecu and do another pull to see if it richens up my afr's


I made more power than 4 other s2k's there 2.2. and 2.0 with full bolt ones

Except a brand new CR made 220 at the wheels i wasent there for that i dont know what mods he had

 

Why would you want to richen up your AFR's? Are you getting detonation?

 

For a N/A motor, max power usually happens with a afr of 12.5 to 13.0, or atleast that's what I've read. I'm guessing that's what he's shooting for.

 

Curious to see what you make at 9k... AP1 cam?

 

i want 220whp

 

i had the guy running the dyno shut it down at 8,300 rpm

from things iv read on here

A you wont make more power past 8
and due to more stroke the load on the side walls is to much at much higher rpm's

 

You can make more power past 8 if you have AP1 cams (actually I think you only need only the intake side) and I know of a few s2000's running an AP2 up to 9k without problems around s2ki somewhere. I think of it as a preference more than anything, either way you're making more power than most.

 

get an Emanage Ultimate and lower VtaK to about 4.5K and take her to 8.6K redline...you'll see some gains from that.