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1000cc peak and hold injector trouble in Uberdata

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1000cc peak and hold injector trouble in Uberdata

Old 05-29-2007, 01:57 PM
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Default 1000cc peak and hold injector trouble in Uberdata

I'm kinda new at tuning but I've managed to build a couple 12 second hondas with no trouble. I was presented with a new challenge when a kid dropped off his 95 integra ls for me to turbo and handed me RC 1000cc injectors. I've only ever tuned with dsm 450s. I installed everything and wired in the resistors like a always have and set everything up on uberdata to run the 1000s. The car only turns over but won't fire. Its getting plenty of fuel...obviously with those huge injectors. Can anyone give me some advice on this? I'm in a real pickle. Thanks for ur help
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Old 05-29-2007, 10:07 PM
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Default Re: 1000cc peak and hold injector trouble in Uberdata

Originally Posted by lsturbo95
Its getting plenty of fuel...obviously with those huge injectors. Can anyone give me some advice on this?
Yup, but you won't believe me when I tell you: you aren't getting enough fuel.

The low Z RC 750cc and larger injectors are large pintle, large inductor solenoids. They take a LOT longer than common injectors to charge the coil windings/inductor up and create a magnetic field strong enough to crack the injector open. Seriously, homeslice, start adding in fuel 5 and 10% at a time until she starts to fire. If you're lucky and you hit a sweet spot you'll idle really rich and then the engine will die if you try to remove fuel... trick is to add fuel and it leans out before swinging rich again. Craziest thing ever.

I have an old stock MAP sensor RC 1100cc tune off Trav-***' car, as well as a Motorola 2.5 bar tune under Crome, that I'd be more than happy to kick you. It was a 2.0/VTEC with a .60 T3/T04E in the UD tune, and the Crome tune was when we stuck a T67 on it and revved it to 9700 rpm @ 16-17 psi..
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Old 05-29-2007, 10:26 PM
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Default Re: 1000cc peak and hold injector trouble in Uberdata

I think your tune is still in the BIN directory no?

RC1000 are no fun...at anytime
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Old 05-29-2007, 10:40 PM
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Default Re: 1000cc peak and hold injector trouble in Uberdata

I dunno, I thought the .bin directory was reformatted?
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Old 05-30-2007, 01:01 AM
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Default Re: 1000cc peak and hold injector trouble in Uberdata

still there...just wont let anyone register for it...and only shows some of the BINs to everyone, and some to only registered members
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Old 05-30-2007, 02:42 AM
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Default Re: 1000cc peak and hold injector trouble in Uberdata

I think my account there is gone. I can't log in.
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Old 05-30-2007, 11:38 AM
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Default Re: 1000cc peak and hold injector trouble in Uberdata

Thanks Joseph. I'm gonna try that when I get home tonight. I never would've thought that its not getting enough fuel. The spark plugs are wet when I pull em after I crank it a couple times.
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Old 05-31-2007, 09:27 AM
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Default Re: 1000cc peak and hold injector trouble in Uberdata

Well after finally getting smart i moved the kid's pic of him and his girlfriend that he has on his dash(his girl is pretty hott) and now i can see the CEL. When i went to check it the ABS light flashes instead of the CEL. Does anyone know what this means? I also found a small fuel leak on a loose fitting on his fuel filter.
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