[Land-speed] EGT

Skip Higginbotham saltrat at pahrump.com
Tue Sep 30 10:04:36 MDT 2008


Hi Dave,
Cam timing is 322 duration split, ignition timing is 30 degrees 
locked, a/f ratios are not accurate (according to gage engineering) 
due to short stacks, 12", and sensor about 4" from valve (1 
cyl).....but it read .5 to .6 volts at power and RPM until the 
rockers both broke on that cyl.
Skip




At 08:33 AM 9/30/2008, Dave Dahlgren wrote:
>tell me about the cam timing and ignition timing a/f ratios if you have them..
>Dave
>----- Original Message ----- From: "Skip Higginbotham" <saltrat at pahrump.com>
>To: "Adin, David" <DavidAdin at mercydurango.org>
>Cc: <land-speed at autox.team.net>
>Sent: Tuesday, September 30, 2008 11:06 AM
>Subject: Re: [Land-speed] EGT
>
>
>>David,
>>Are you running a turbo?
>>Skip
>>
>>
>>
>>At 07:59 AM 9/30/2008, Adin, David wrote:
>>>Hi Skip,
>>>
>>>FWIW: 1600cc Miata, 22lbs boost EGT = ~1800.  My a/f was right on.
>>>
>>>What I noticed was how long the temp stayed up there, keeping in mind I
>>>had never been in the boost for two miles on the street.
>>>
>>>My guess (and purely a SWAG) is:  good a/f with this egt is ok.
>>>
>>>I'd ask Dahlgren . . .
>>>
>>>Regards,
>>>
>>>David in Durango


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