Amazed Dave hasn't jumped on this one.... Spark plugs are okay for tuning
information but NOTHING like a real printout from a decent computer.... I
have seen several of these and understand the concept but with my budget the
best I could do was a Dual EGT gage from Auto meter that monitors the
highest and recalls both high reading's at the end of a run.... ( then I
have to remember to clear them before the next one )
it's a great tool for tuning not a data logger but it's been a wonderful
toy...
I put the probes on the 1 & 2 tubes cause that was what I thought made
sense.... to be honest I don't think it makes much difference.... what is
important is the differeneces when you run .... from your established
baseline.... each one of these things is going to be just a tick different
simply as a matter of where they are installed... so your baseline tuning
should allow you to know what is too hot.....
Dave made a great point a while back about keeping the Probe VERY close to
the outlet to read REAL egt rather then a cooled down number that results
from the headers cooling the charge...
The Archives should have some great info on this subject... check out
www.listquest.com under land speed racing....
Keith
----- Original Message -----
From: <ardunbill@webtv.net>
To: <land-speed@autox.team.net>
Sent: Wednesday, April 04, 2001 7:26 AM
Subject: EGT
> Hi Folks, last time I had a ride in a Beechcraft Bonanza I noticed the
> owner had installed an EGT display which continuously monitored each of
> the six cylinders.
>
> Just talking theoretically, each cylinder on a V-8 is bound to have a
> different EGT, so for tuning purposes it would seem you need a computer
> to record all cylinders during a run so that you
> can make changes later accordingly. I gather people do that changing
> nozzles for each cylinder with mechanical fuel injection, and with EFI I
> suppose each cylinder can be individually managed with the computer.
>
> Tom already told us he changes bypass jets at Bonneville during a run if
> his EGT so indicates. I imagine if the EGT is high it means a lean
> condition and the engine wants more fuel. As John just pointed out,
> there's not time to do anything but shift gears and steer at Maxton.
>
> Cheers from Ardun Bill
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