CHT temps, individual cylinder differences? |
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CHT temps, individual cylinder differences? |
falcor75 |
Apr 12 2018, 10:50 PM
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#1
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Senior Member Group: Members Posts: 1,579 Joined: 22-November 12 From: Sweden Member No.: 15,176 Region Association: Scandinavia |
For those of you that are running 4 CHT sensors under the plugs, what differences do you see between the cylinders?
Whats your typical temps for each cylinder with: A: Engine warmed up sitting at idle for a minute or two. B: Engine warmed up, cruising at 50-55 mph in fifth gear. |
era vulgaris |
Apr 14 2018, 07:29 AM
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#2
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J is for Genius Group: Members Posts: 982 Joined: 10-November 13 From: Raleigh, NC Member No.: 16,629 Region Association: South East States |
Dual carbs, or FI? If dual carbs, then your carbs are out of balance. The more open the throttle butterfly is, the higher the head temp will be. Your 1,2 side carb is currently set for a higher idle than your 3,4 side carb. That's why your temps are off from where they should be.
I had that car for 2 years and I saw every possible result of temps during tuning. Your temp relationships are typical for carbs that aren't in sync, either because of tuning or because of a mis-adjusted linkage. When tuned properly #3 will always be the hottest because it's furthest from the cooling fan, and #2 will always be the coolest because it's closest to the cooling fan. |
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