Vafc2
10-28-2012, 02:31 PM
#2
I would say no if your going to run cams. On some ap1s you can get away with a vafc since they run rich from factory. If your going to invest in cams then obviously you are looking to make some power, I would go with a standalone which will allow you timing adjustment and more flexibility. For bolt-ons, the vafc can be a decent tool its just not optimal imo.
10-29-2012, 05:43 AM
#3
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I agree. All the VAFC does is fool your car into thinking it has more fuel than it really does. Basically if you have bolt ons and running rich it will help you pull some of the richness out. But you cant add fuel if you need to in some places.
If you go with cams I would def spend the money on a stand alone.
They are safe to run on stock ecu and have been shown to make gains. Just get more out of them with a tune. So i feel its a bit silly to pay 600+ for cams and only get 300 worth of performance out of them.
If you go with cams I would def spend the money on a stand alone.
They are safe to run on stock ecu and have been shown to make gains. Just get more out of them with a tune. So i feel its a bit silly to pay 600+ for cams and only get 300 worth of performance out of them.
10-29-2012, 06:23 AM
#4
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I agree. All the VAFC does is fool your car into thinking it has more fuel than it really does. Basically if you have bolt ons and running rich it will help you pull some of the richness out. But you cant add fuel if you need to in some places.
If you go with cams I would def spend the money on a stand alone.
They are safe to run on stock ecu and have been shown to make gains. Just get more out of them with a tune. So i feel its a bit silly to pay 600+ for cams and only get 300 worth of performance out of them.
If you go with cams I would def spend the money on a stand alone.
They are safe to run on stock ecu and have been shown to make gains. Just get more out of them with a tune. So i feel its a bit silly to pay 600+ for cams and only get 300 worth of performance out of them.
10-30-2012, 06:09 PM
#5
If you dont want to spend $2k for a full EMS and tune to make 5 more hp you wont feel, then yes run the vafc, but pick up an adjustable FPR to get you some added fuel with stock injectors first. Use the vafc to lower vtec and fine tune/remove the fuel where needed at that point. AEM makes a quality fpr for a little over $100. Your welcome 
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11-01-2012, 08:43 PM
#8
i have an 01 (00-01 ecu super rich!) IHE untuned 195hp tune 223hp 
VAFC2 way to go for a bolt on S FI = standalone
berk header challenge 76tar k&n fipk custom 76mm test pipe.. catch can /breathersetup
VAFC2 way to go for a bolt on S FI = standaloneberk header challenge 76tar k&n fipk custom 76mm test pipe.. catch can /breathersetup
12-13-2012, 07:15 AM
#9
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I don't know why so many people hate on the VAFC units. For bolts on and "cheap" ability to lower the vtec cross-over, its a great unit in my opinion. Sure its a little fussy because the car will learn to "undo" the VAFC and you have to reset the fuel trims regularly... but for the price and the ability to lower the vtec "kick", its worth it.
12-13-2012, 08:32 AM
#10
That’s actually not true at all. You don’t tune the narrow/closed loop fuel with this unit for that reason, there is really no need to anyway, this is not what your trying to effect. If your using the unit as it was intended for our car with trimming fuel in wide throttle/open loop and effecting vtec engagement point, then there is never any resetting needed to be done. The unit is dead reliable and not fussy at all. User error and wrong expectations is when things can get confusing.
