I got a S4 NA with a rotory 13B from Atkins about 4 years ago and has been great. I recently checked the rotor pressure on my ride. I got some crazy numbers. I have an average compression of 9.8, 9.9 and 10.2 on the front rotor and the back rotor is 10.7, 10.8 and 11.2. Now I asked the tech if that was normal and he stated, "Hell no." Well I figured Atkins hooked me up by sending me a high compression engine and believe me I'm not complaining. My ride is way fast for a NA.

But now I woul like to know if I should put some T2 fuel injectors along with a SAFCII. Will I get some pretty good power gains?

Any suggestions will be greatly appreciated. Thanks.


Oh, here are my modes:
-Koyo rad with black magic Flex Fan
-Cold air intake, Bönez Street Comp Intake 86 – 88
-Spec Clutch Type 2
-RB headers with 3' hi-flow cat, 3' cat-back made by Fujitsubo

 

did you get any porting done? Those numbers sound real good.

You will not need injectors. The n/a injectors will work just fine.

Hook up a SAFC2 if you want to go this route and go get a good tune.

 

Yes, got the "Street Port" Atkins offered back in 2002.

 

That engine must be fun

You have pics of this intake so we can tell you if you need to make a change or not? A lot of these "cold air intakes" are worse then the stock intake.