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Stock CPU with 780cc injectors

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Old 04-08-2003, 05:35 PM
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Default Stock CPU with 780cc injectors

Will a stock Honda computer idle 780cc injectors?


[Modified by 18gTeg, 6:40 PM 4/8/2003]
Old 04-08-2003, 05:35 PM
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Default Re: Stock CPU with 780cc injectors (18gTeg)

yes

stan
Old 04-08-2003, 05:50 PM
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Default Re: Stock CPU with 780cc injectors (Flamenco-T)

yes

stan
uhh..since when? you"ll need some kind of AFC hack don't you?
Old 04-08-2003, 05:53 PM
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Default Re: Stock CPU with 780cc injectors (MiraiZ)

yes

stan

uhh..since when? you"ll need some kind of AFC hack don't you?
Something similar to it. I had my 880s idle with stock ecu but with a gm 3bar. It idled and drove, but it wasnt the greatest driv.e
Old 04-08-2003, 07:00 PM
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Default Re: Stock CPU with 780cc injectors (MiraiZ)

yes

stan

uhh..since when? you"ll need some kind of AFC hack don't you?
****, sorry, I thought I red Hondata.... my bad...

stan
Old 04-08-2003, 07:50 PM
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Default Re: Stock CPU with 780cc injectors (18gTeg)

It will work the stock ecu, but you are going to need to wire up a 3bar map sensor. Essentially the 3bar map sensor subtracts -60% ( I think, I cant remember exactly...dead tired from a system dynamics test.) so your fuel now becomes -60% less and you car can idle and drive on the injectors. Its still going to be running very rich, but it will run. I would recommend you breaking the engine in on the stock ecu and injectors, it gets rid of alot of unknown factors. The fuel will wash down your rings, and toast the bottom end. Be careful.

Also, just want to check that you adjusted the fpr to the stock fuel pressure. If you didnt, you might be running way to much fuel pressure on the injectors and flooding the engine.
Old 04-08-2003, 07:53 PM
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Default Re: Stock CPU with 780cc injectors (boosted hybrid)

Yeah I am going to try that tomorrow. I am going to try the stock rail and injectors, but I already wired in the resistor box?
Old 04-08-2003, 07:55 PM
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Default Re: Stock CPU with 780cc injectors (18gTeg)

The low resistence will hurt the injector drivers since the impedance is too low. The high resistence with the high resistence injectors wont hurt anything.
Old 04-08-2003, 07:56 PM
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Default Re: Stock CPU with 780cc injectors (boosted hybrid)

what fuel pressure should I be seeing on my gauge when cranking the car?
Old 04-08-2003, 08:07 PM
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Default Re: Stock CPU with 780cc injectors (18gTeg)

35-40psi.
Old 04-08-2003, 08:11 PM
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Default Re: Stock CPU with 780cc injectors (boosted hybrid)

I had it set at 40lb so that wasn't the problem then
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