Tue, January 12th, 2010, 09:43 PM
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Double Whopper
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Join Date: Jan 2010
Location: Boca Raton, FL
Posts: 33
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Quote:
Originally Posted by 88Racing
Bamboo,
Make sure the PID is set to CHT and not ECT. That 192 sounds more like an ECT.
Its not that I don't believe you but just double check it?
Please.
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Yup, CHT it is.
Quote:
Originally Posted by JackandJanet
You COULD be a candidate for "lean", but I'm not as sure as 88 is that CHT is really a good indicator. If your load is low (no hills, no high outside temps and no high RPMs, you're not going to see high CHT values. A value of 192 is about what your thermostat is supposed to open at (195 degrees), so it's probably just doing its job. And, Level 2 is a "richer" tune and in gassers, a rich mixture "cools" the engine.
My CHTs tend to stay under 200 (I think) when I'm not towing and just cruising on level ground. If I start climbing, though, they jump to the 210+ region pretty fast. I don't recall seeing anything above 220 though, even on hard tow pulls up mountain passes.
Really though - you WANT the CHT to be in the 195-210 region. This is where the engine operates efficiently and the emissions are lowest.
- Jack
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Fair enough, I guess I'm just suspicious when my truck is working correctly... that doesn't happen to me very often 
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Last edited by bambo2888; Wed, January 13th, 2010 at 08:13 AM.
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