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Old 01-05-2006, 04:51 PM   #1 (permalink)
 
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I've done alot of searching lately so that I can boost this summer.

I got a d16y8 in my 98 ex and I've got almost everything planned out. (what to buy and from where)

My question is about how to control the fuel though. I was pretty much set on using DSM 450's and an AFC since thats better than using a FMU and since I don't have anyway to tune uber or crome, and I want to keep it obd2. But I have been looking through some magazines and it seems like some of the turbo cars are using AFC with a FMU. Is this better or should I stay with just the AFC?

And is the only difference in the SAFC and the VAFC that the VAFC can control vtec and if not what are the differences?

Thanks guys you've been a great help so far.
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Old 01-05-2006, 05:15 PM   #2 (permalink)
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well both are better than just one but, everyone here is about to jump down your throat saying convert to obd1 and chip
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Old 01-05-2006, 05:20 PM   #3 (permalink)
 
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I know ive heard about a million times "chip it" lol.

anyway your sayin I should use the FMU with the stock injectors and a walbro 255 fuel inline pump. Then later I can use a AFC to tune it, right?
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Old 01-05-2006, 05:58 PM   #4 (permalink)
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Your problem isn't going to be fuel. Its going to be timing. If you can't retard the timing per pound you will:
A: Blow your shit up.
B: Retard your base timing and not make nearly the power you would and kill the out of boost performance.
C: Use an AFC and it advances the shit out of your timing so refer to A.
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Old 01-05-2006, 06:04 PM   #5 (permalink)
 
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yep
sounds good2me
VAFC is fine but watch your timing and boost levels
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Old 01-06-2006, 06:31 AM   #6 (permalink)
 
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So even if a use a FMU I have to retard the timing and then later when I get the AFC I have to retard it more? Or do I run the stock timing with just the FMU?
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Old 01-06-2006, 06:53 AM   #7 (permalink)
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you probably could go with emanage ultimate and stay OBDII

www.greddy.com
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Old 01-06-2006, 06:58 AM   #8 (permalink)
 
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Yea but Im on a budget. The turbo Im thinkin bout gettin is a T3 .42/.48 with a 7psi internal wg. Would this be good at the stock psi with just a FMU or should I get a bigger fuel pump cause I've heard the stock fuel pump can support up to 200whp.
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Old 01-06-2006, 09:41 AM   #9 (permalink)
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stock fuel pumps support the injector sizes you upgrade injectors you need more fuel more duty cycle % on the bigger injector more fuel is needed
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Old 01-06-2006, 03:47 PM   #10 (permalink)
 
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So until I eventually want to turn up the boost Im fine with just a 12:1 FMU.

I know this ain't the best setup but It'll get me boostin. Thanks guys!
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