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1. 09:14 AM - JPI vs EI (923te)
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Gary,
I thought this an interesting thread on the GG.
I understand that the JPI probes are grounded while the EI are not.
Is it possible that this accounts for th edifferences in your thorough
comparison tests?
ned
----- Original Message -----
From: David Fletcher
Sent: Wednesday, March 25, 2009 10:41 AM
Subject: RE: Tiger outlet ramps - More Info Req.
> But, of course, I am sure we can all comment on the EI vs JPI question
> accuracy. If the metallurgical properties of aluminum degrade at temps
> higher than 450*, isn't the JPI more accurately reflecting the true
> temperature of the aluminum cylinder head?
Customer just had the same problem with a newly installed JPI. cruise
temps
were in the 425 range. Went back and added a new ground directly to the
engine as the manual says in bold print, and his temps dropped about 25
degrees. The EI doesn't seem to need it's own special ground.
David Fletcher
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