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[Land-speed] Ford Motor Tunign Question

To: "" <> engine=2.50.10432:5.10.8794,1.0.431,0.0.0000 definitions=2013-08-27_08:2013-08-27,2013-08-27,1970-01-01 signatures=0 spamscore=0 suspectscore=0 phishscore=0 adultscore=0 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=7.0.1-1305240000 definitions=main-1308270111
Subject: [Land-speed] Ford Motor Tunign Question
From: Larry Mayfield <>
Date: Tue, 27 Aug 2013 11:51:55 -0700
Organization: Mayfield Motorsport
User-agent: Mozilla/5.0 (Windows NT 5.1; rv:17.0) Gecko/20130801 Thunderbird/17.0.8
To some of you the subject line might be an oxy moronic question, lol,  
but to me it is a real issue.  The problem is thsat it starts and seems 
to run just fine but after about 20 seconds, it starts a sound on only 
the passenger side that is a rat a tat rat a tat rat ....sound. Almost 
like it has become a 2 stroke on that side.  I tune and run EFI on this 
motor so for those who do not use EFI may I ask if you know of any 
mechanical issue that would cause it to runt hat way on only one side?  
I am stumped. For the EFI crowd, after about 20 seconds the efi changes 
mode and spark drops from about 30 degrees to under 20 degrees. I 
suspect that is the problem but I do not know how to fix that...   I am 
currentl;yu researching teh documentation that is available for cranking 
mode to see if I can find something that tells me that widget x is 
broken and needs to be replaced or simply turn knob a it it will be 
magically fixed.  I use a Ford OEM A9P EEC computer with a Tweecer as 
the tuner chip. It worked just fine in 2010... This motor is normally 
aspirated with 11.4 CR and good stuff inside.

Thoughts comments help or suggestions..


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