[Gmecm] Tuning question

[Bill Shaw]

I was running out of injectors.  I pushed the FP up to 50 lbs and it cleaned
up nicely.  Need to get some bigger injectors!

Thanks,

Bill


> From: Mike V <gmecm at enzoco.com>
> Reply-To: gmecm at diy-efi.org
> Date: Wed, 06 Apr 2005 22:41:11 -0400
> To: gmecm at diy-efi.org
> Subject: Re: [Gmecm] Tuning question
> 
> At 05:14 PM 4/6/2005 -0400, you wrote:
> 
>> I just fixed a problem that was keeping me from data collecting so I am just
>> getting my first good data from the '749.  I added an intercooler and
>> smaller SC pulley,  and it is now going way lean as soon as the boost starts
>> to come on.  I've uploaded some data in an Excel spreadsheet:
>> http://p-928.home.comcast.net/928-1.xls
> Hi Bill,
> Looking at the data alone suggests a fuel delivery problem.
> The rapid lean-out without a significant reduction in injector pulse.
> Have you been able to observe the fuel pressure while this is occurring?
> Maybe a fuel slosh or pump getting weak?
> Cheers
> Mike V
> 
> 
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