will everyone that runs an Apexi VAFC and has had access to a dyno please post the power increases with this unit installed. I want to know if this is the **** or not. thanks

 

it's not ****, but it's effectiveness depends on whether or not your motor needs different fuel delivery from what it's getting now. Unless someone posts up a dyno chart with a nearly identical engine setup to yours, the information will be useless.

 

true, but bye using a VFAC will there be a noticable increase in power if tuned correctly when used on a engine that is FAR from "factory tuned", so to speak.

 

it depends a lot on what mods you have. in my opinion, a vafc is most effective if you have big cams or some kind of FI

 

My setup is, as listed: 94 integra GSR, Ls/Vtec B18a block,B16a head, B16b 81.25mm pistons/rings, factory modified rods, ARP rod bolts, JDM SiR P30 ecu, stock injectors, and acutally I plan on pickup up some 97 spec ITR cams tomarrow and installing a B&M FPR. Just ball park guessing. Would this setup benifit from the mods listed or would the results remain unnoticable if you will. thanks for helping guys.

 

benifit with a VAFC is what I was saying

 

Yes, that ECU is not tuned to feed fuel for a 1.8L with ITR cams and a ~12:1 CR. Nor is the timing correct for the compression.


[Modified by texan, 9:58 PM 2/5/2003]

 

http://www.we-todd-did-racing.com/we...MxeTU0MQ%3D%3D

This is the link to my plot for a h22a4. This was done on an otherwise stock car - not even a CAI at the time. The only noticable diffrence was at the crossover point. According to the graph, at the x-over pt, I gained ~15whp. Not bad IMO.