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Post by zimm84 on Jan 27, 2015 15:36:26 GMT -5
I have a Dominator E85 carb built by raceone85, it is on a Big block ford, and have a couple questions... on a cold start I can get it to idle and the rpm I want, once I drive the car a little bit and get it hot it seems to idle like 2k higher... is there anything I can do to get a happy medium with a consistent idle?
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Post by butterbean on Jan 28, 2015 10:32:53 GMT -5
you need to check the fuel %age to see what you got, E-85 don't like cold starts and you must keep temps up to 170* for it to burn properly so start there, I think E-70 will be better when its under 45* @ E-70 you will need to lean it out a little on main jets like 2 to 4 jet sizes, keep us posted and good luck
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Post by zimm84 on Jan 28, 2015 19:37:29 GMT -5
well the actual problem is it will idle when the car is cold once i get the d**n thing to start and once its does idle its fine... then if I drive it or give it a few wide open throttle taps once its warmed up the idle will not come back down..
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Post by butterbean on Jan 31, 2015 10:53:33 GMT -5
just give me a call Zimm, 772-626-8044
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Post by triplenickel on Feb 1, 2015 11:01:55 GMT -5
Sounds like the idle could be lean. Does it warm up easily? Ck the fuel like the Bean suggested & let us know. Mine will idle really low when cold & comes up as it warms up. Kind of the nature of the beast. This usually happens even on gas. Yours sounds a little excessive, so it probably just needs a little tweaking on the idle mixture. I find that the mixture screw adjustments don't respond as quickly as a gas carb. What I do is just make 1/4 turns on all 4 idle mix screws and let it run like that for a little bid to see what happens to the idle.
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