gearhead16

im getting ready to turbo my 99 civic ex with my sir b16a swap ( just been rebuilt 8k miles ago) im looking to use a t3/t4 turbo kit and only run about 8psi. my question is with 440cc injectors, fuel pressure regulator and a vafc will i be able to get enough fuel to not run lean?

TheShodan

iTrader: (14)

Nope. Get away from that right now. I'm not even going to mention the "VAFC-HACK" because there was a reason why we got away from that type of tune 10 years ago. If you want it to run well, and forever, get better management, and get it professionally tuned.

There are plenty of options that are a good budget. If this is an issue of cost of real management, please wait, be patient, and get it after you've waited a bit.

gearhead16

k thx

gearhead16

im gona end up tuning it with hondata s200b

93CX

I cant even imagine why you would think this is a good idea. Its even easier to get a tune on a chipped ecu than it is to get a VAFC, check valves and all that BS now-a-days, and I live in the middle of nowhere.

TheShodan

iTrader: (14)

Much better idea..

nukeONE

i'm tune on s200

and im happy with

omgwtfbbq

thanks OP for going the right direction, and preventing a huge "AFC HACK" flame thread.

I've been there. I used a VAFC with a chipped ecu to get the car to the tuner. Although I had it tuned with a wideband so that I was not leaning out, it turned out my settings were still off, and if i had not got it professionally tuned, it would have been a ticking time bomb....not good after spending thousands of dollars, and countless months of work to build it.

jasoncrashtech

good for you bro. emanage, vafc both suck.

TnC

uhhh ohh running a vafc.... that's trouble right there. i could have saved up around 500 bucks more at that time and got the s300. but no, ran on the hack and blew my motor. spent a whole bunch more to rebuild it and time yada yada, and finally got the s300. be patient and just save up a little more for a real engine management, you won't regret it.

riddlinkid1986

wow wow BOYZ,chill out. I was tuned on uberdata with my stock b16a3 set up in my 2000 si. I built a stroked out gsr block with CP 9-1 pistions, ls egle rods, ls crank, with b16a head, went to the 76mm blox throttle body, victorX intake....motorolla 2.5 map,.. 550cc injectos. I rock the innavative wideband, an also got the greddy e-01, and also have my vafc still hooked up.


Now, a tune on like crome/ uberdata/ hondata is always always best. You need to have a boost map that pulls timing for every pound of boost, and add's fuel for ever pound of boost. N/A maps are cake. Boosted maps have alot more going on an require LOT of detail an correction.. Hondata is the best. emanage sucks! lol.

But, my situtation i have the data log feature with my greddy e-01 that is sync. with my wideband, tps, rpms, and boost. I Through in my new build, an broke it in nice an slow. My old map with no changes on my vafc is exactly 11.5-12.1 a/f.running the same boost as i did on my stock b16a3.

Now, i already got my uberdata tune that retards timing, an add's fuel for boost. I just add'ed more fuel with my vafc (witch besides change your v-tec is all you can do with a vafc) to make it safe. I also retarded my dizzy quite abit to make sure i did not have any detnation issues. I did 3rd gear pulls to limmiter an pulled my plugs to check to

Iv been railing on it keeping my a/f between 10a/f & 11a/f an all is well. I know that if i want to make my horse power i will need hondata s300 an a dam good tuner on the dyno. its always best on the dyno!!! but you can use the vafc as a crutch to get your set up working best you can befor you pay the money to have it tuned on hondata!

inspector01

You do realize, that when you adjusted your fuel with the AFC, you changed your timing too? so that doesn't really help you know how your timing is. Good thing you retarded your dizzy tho.

1.0BarEM1

I have to disagree with you,I've ran a stock LS on 8psi for over 2 years tuned on VAFC car put down 250whp 210tq and the only reason the car blew was cause the injectors took a crap on me and I ended up melting 2 pistons.Also know tons of people running high horsepower cars tuned on VAFC's with no issues.

TheShodan

iTrader: (14)

I'm glad that has occured for you. However, considering at this time there are BETTER solutions that are available then there were years ago, there is no reason to have the OP believe that it is the BEST solution for his budget. I also had AFC tuned cars that were running a long time, almost 10 years ago, but they do not match well at all with a MAP sensor car for any length of time for durability. Sure, you can drive with it, but it does not have the resolution that the OP is looking for in regards to stock drivability.