[Gmecm] Off idle stumble

[Mike Poore]

No, it is an '85 L98 MAF system. Someone else wanted to know about my 
setup, so I'll go into some detail.

It is an '85 vette. Right now the block is a 355, but will be replaced 
with a 420 cid. I have the TPIS Mini Ram, a 58mm throttle body, handmade 
MAF capable of 1100 cfm, handmade fresh air system, long tube headers, 
air system removed, cats removed, no egr,  hand ported heads, Ford 
Racing 40# injectors, 10:1 compression, Richmond ROD 6 speed 
transmission,  cap  dis ignition with remote coil,  and numerous 
handmade bit and pieces to get everything to fit. Everything is 
oversized for the 355, which is a bit of a challenge, but I can't afford 
to get the 420 cid block right now. I don't want to know what I have 
already spent not to mention the hours invested.

Mike

Darryl M Gilbert wrote:

>Are you using a MAP??
>Darryl..
>On Fri, 10 Mar 2006 20:21:09 -0500 Mike Poore <mp at FlowersByValerie.com>
>writes:
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>>I now have the BLM at idle between 126 and 128. My newest issue is 
>>that 
>>since reducing the injector pulse width vs. LV8 by 20%  to get the 
>>BLM 
>>to 128 the engine has a hesitation off idle. I have a 58mm throttle 
>>
>>body, which is a little big for the current configuration, but will 
>>be 
>>perfect when I get the 420 cid built. For now, I need to make due 
>>with 
>>what I have. I tried adjusting the following:
>>
>>Delta TPS Accel. Enrichment Pulses from 4 to 5
>>Accel. Enrich. Delta TPS Scale Factor from 0 to 30%
>>Accel. Enrich. Delta vs. Delta LV8 scaled up 20%
>>
>>Even with all three adjustments, the hesitation still exists. Any 
>>suggestions?
>>
>>Mike
>>_______________________________________________
>>Gmecm mailing list
>>Gmecm at diy-efi.org
>>http://lists.diy-efi.org/mailman/listinfo/gmecm
>>
>>
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