[Gmecm] 749 ECM

Mark Romans romans
Mon Mar 12 14:43:58 UTC 2007


Hi Jim:  First make sure that your injector constant is set properly.
2nd.  A stock engine idles at about 35kpa, so what kpa does your engine idle 
at?
Past the VE setting from 35 kpa to the kpa your engine idles at.  Copy that 
kpa from the
colume where it idles all the way to the smallest kpa settings on the map. 
(Closed Throttle).
This will get you started.
Mark
----- Original Message ----- 
From: "James Panter" <9jim30 at charter.net>
To: <gmecm at diy-efi.org>
Sent: Monday, March 12, 2007 6:22 AM
Subject: Re: [Gmecm] 749 ECM


> Mike:   Good point you make particularly on the injectors.   I doubt 
> whether the small block is a 350 or 355 would make much difference in the 
> larger picture (a stroker would).  I'm using a very mild Isky cam and 45 
> lb injectors and was just really surprised at how rich the engine is 
> intially after just changing the bin to reflect a V8 rather than the V6 
> because the actually cyl volume is very similar.  And, yes I have an LM1 
> and all the Moates stuff.   I was just hoping to get close on the settings 
> and save time.   The car hasn't been driven yet, just started and it's far 
> too rich to drive.
> I appreciate you response.
> Jim
> ----- Original Message ----- 
> From: "Mike V" <efi at dyakron.com>
> To: <gmecm at diy-efi.org>
> Sent: Monday, March 12, 2007 7:48 AM
> Subject: Re: [Gmecm] 749 ECM
>
>
>> Hi Jim,
>> it's unlikely that there will be a bin that is ready made for your 
>> combination of
>> cam, injectors, etc.   Do you have a log file from your ALDL datastream?
>> Also, what are the specifics of the engine?  There are other factors, but
>> the camshaft specs and injector size are two big ones that come to mind.
>> Datastream monitoring is critical for addressing this sort of thing.
>> mv
>>
>> ----- Original Message ----- 
>> From: "James Panter" <9jim30 at charter.net>
>> To: <gmecm at diy-efi.org>
>> Sent: Sunday, March 11, 2007 7:34 PM
>> Subject: [Gmecm] 749 ECM
>>
>>
>>> Hey Guys    Is there anyone who has done a small block Chev (twin turbos 
>>> @ 8 psi boost) using the $58 program that has it tuned??  I have my 
>>> project running but very rick and was hoping to find someone who could 
>>> send me a corrected bin or give me line items changes they made that 
>>> worked.
>>> Thanks for any help---
>>> Jim
>>>
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>
>
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