Fun with troubleshooting leanness (and 5th gear cruising temps) |
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Fun with troubleshooting leanness (and 5th gear cruising temps) |
emerygt350 |
Mar 15 2024, 03:37 PM
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#1
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Advanced Member Group: Members Posts: 2,132 Joined: 20-July 21 From: Upstate, NY Member No.: 25,740 Region Association: North East States |
So I have been playing with adding resistance to the cht to bump my mixture. Messing with the mps was not getting me to where I wanted to be I wanted something a little more global. Anyway, bought a 10 dollar Bluetooth relay. Set it up so one channel was clean the other had 50ohms resistance in it. As I am driving I can switch back and forth and watch the results on the cht and AFR. 50 is really working well (this is all in addition to my 250ohm found on 73s). Now I have added another 20 ohms to the alternate so the relay will switch between 50 and 70. It ain't pretty but it's only for troubleshooting.
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brant |
Apr 3 2024, 10:02 AM
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#2
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914 Wizard Group: Members Posts: 11,632 Joined: 30-December 02 From: Colorado Member No.: 47 Region Association: Rocky Mountains |
I agree with wind resistance
Also when you drop into an over drive 5th you drop the fan speed This is why the factory put a different 5th I believe into the /6 car trans To not have as much of an over drive ratio in 5th to raise the fan speed and head cooling output The 356 guys used to drive a gear down to increase cooling to the heads You could change your gear ratio? It’s not a heavy load at cruising Steady state cruising is supposed to be leaner than WOT for gas mileage |
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