390cc's w/ vafc
11-11-2004, 01:08 PM
#1
1.5 BAR
Thread Starter
Join Date: Aug 2004
Posts: 710
390cc's w/ vafc
i have a integra ls (95), and i was going to buy one of those vafc controlers. i am going to be turbocharging my car and also slappin on a vtec head. but, in the mean time while i dont have that stuff, can i put the 390cc injectors in and program it with the vafc to run on an N/A application right now? i have i/h/e. will i get a substantial hp increase? any thoughts/opinions? thanks
11-11-2004, 01:30 PM
#2
1.0 BAR
Join Date: Oct 2004
Posts: 512
Re:390cc's w/ vafc
No, you won't get any substantial horsepower increase. If you did, Honda would have thrown them in from the factory. More fuel does NOT mean more power. I would suggest you install the injectors when you do the turbo... Is there any point to installing them now?
11-11-2004, 03:10 PM
#5
1.5 BAR
Join Date: Mar 2003
Posts: 1,190
Re:390cc's w/ vafc
I don't think this would make things easier for him; especially because he's going to NEED 450cc injectors when he goes lsvtec+turbo. 390s will run out of fuel in no time. I second the idea to just wait till you're turbo, then install larger injectors. Errrrr.. I mean, install them at the same time. :P
11-11-2004, 03:22 PM
#6
3.0 BAR
Join Date: Jun 2003
Posts: 6,857
Re:390cc's w/ vafc
Originally Posted by Will
I don't think this would make things easier for him; especially because he's going to NEED 450cc injectors when he goes lsvtec+turbo. 390s will run out of fuel in no time. I second the idea to just wait till you're turbo, then install larger injectors. Errrrr.. I mean, install them at the same time. :P
Ive seen boosted b18s run with 370cc R.C engineering injectors.
The last time I checked the 450s were run at about -48% on the SFC.390s will be run at about -30% and that might be a little rich.With a stock botom end on an ls I dought he'll run into a problem with those 390s.But thats just my $.02
11-11-2004, 04:50 PM
#8
3.0 BAR
Join Date: May 2003
Posts: 5,380
Re:390cc's w/ vafc
Originally Posted by jeffescortlx
Would'nt 390 be safer then 450's since less correction is needed meaning the timing is less jacked with? (as long as the power made is with in the injectors capibility)
