apexi vafc - Honda Prelude Forum

JCel · 02-05-2010, 08:26 PM

im thingking of getting one. is it a big help? do i really need it? so far i got a cai, headers and cat back exaust, fuel management system.

petern101 · 02-05-2010, 10:05 PM

1. it's only a big help if you get it tuned correctly
2. you never need anything
3. if you already have a fuel management system, why buy a vafc? Me thinks you don't know what this does.

Do some more research, there are plenty of threads about this.

JCel · 02-06-2010, 10:59 PM

its actually just an aem fuel rail not a fuel management system. my bad. all i know with the vafc is it cotrols the vtec and fuel and water. do i really need it and how much more hp will i get? do i need to dyno? is it better if i just get hondata?

red92si · 02-07-2010, 10:34 AM

Well, it doesn't control water at all...

nartnailuj · 02-07-2010, 01:54 PM

it would give some decent hp gains if it was tuned professionally. There is a shop in sf that does it for 150 flat and they are a reputable shop also.

petern101 · 02-07-2010, 07:12 PM

Where did you hear it controls water? lol that's a new one.

nartnailuj · 02-07-2010, 08:48 PM

DnR performance on
25710 industrial Blvd #2
Hayward, CA. 94545

heres their website, they only do appointments
www.DNR-Performance.com | M-F 10am-7pm Appointments/Service: 510 783-5200

it only takes an hour so its only 150 to tune a vafc

JCel · 02-07-2010, 11:31 PM

oops i meant air... lol
so what do you guys think would be better hondata or vafc?

JCel · 02-07-2010, 11:35 PM

whats up julian hows the hood? thats why i was thinking of getting your cams. i wanna get a few more hp from my engine but i dint wanna over do it coz i still want it to pass smog. i heard that as long as its stage 1 cams or i go with a greddy turbo it will still pass smog but it might be too high maintenance to do that so im sticking with mostly bolt on. have you had experience with a vafc or hondata?

camarokiller · 02-08-2010, 02:36 PM

A hondata, without question, would be far superior to a piggyback like the VAFC. Reason is because the vafc can't tune partial throttle on an OBDII vehicle, and it can't tune the ignition timing. Hondata can do it all but costs much more. It comes down to how much you want to spend. I'd say the VAFC gives a decent bang for the buck, but if you want serious power you will have to invest in a real EMS.

nartnailuj · 02-09-2010, 03:12 AM

the hood is great; i just got it clear coated and looks good now haha i dont know much about those but i know hondata is a much better choice if you plan on going big

JCel · 02-09-2010, 11:07 PM

how much did it cost you to have it clear coated? i dint really wanna sell it just dont have space for 2 hoods. im glad it worked out for you. anyway im looking at a spoon vtec controller im thinking il just go with the vafc i think it will be more of use to me than the spoon. whats new with your ride? still got those cams?

petern101 · 02-10-2010, 12:34 PM

^you sure it's a "spoon vtec controller" ?

Because IIRC, spoon only made ecu's for h22's, never a vtec controller.

nartnailuj · 02-10-2010, 02:07 PM

i got it clear coated for $50, im glad it wasnt that much. Nothing new, i just bought a vafc and planning to get it tuned at the place in sf. The cams, i found out, that they werent type s so i took them off the sale board. whats new with yours?

JCel · 02-10-2010, 11:48 PM

Quote:

Originally Posted by petern101

^you sure it's a "spoon vtec controller" ?

Because IIRC, spoon only made ecu's for h22's, never a vtec controller.

the guy said he was able to use it on his bb4. i asked him he said it would work with a 5th gen. im not gonna get it tho

JCel · 02-10-2010, 11:50 PM

Quote:

Originally Posted by nartnailuj

i got it clear coated for $50, im glad it wasnt that much. Nothing new, i just bought a vafc and planning to get it tuned at the place in sf. The cams, i found out, that they werent type s so i took them off the sale board. whats new with yours?

just fixing all the flaws here and there. i got a lot of plans but im gonna wait for summer . got some stuff laying around once i get evrything ill put it in all at once. let me know what happens with your vafc. are you gonna do dyno?