melted windsor pistons
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A known problem is that the fuel in fuel bowl will "slosh" to the right, not allowing fuel into pickup. This is if you are turning left hand corners. If its Holley, I believe they make something for this. You never said what kind of racing.
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Post Fiend
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From: Topsfield, MA
Do yourself a favor and put a wideband o2 sensor on the thing.
For what it cost you in engine parts, you could of bought a few of them.
Reading the plugs isn't a great indication of what's going on. The o2 sensor will tell you exactly what's going on with the A/F ratio. It'll help you tune for optimal power too.
For what it cost you in engine parts, you could of bought a few of them.
Reading the plugs isn't a great indication of what's going on. The o2 sensor will tell you exactly what's going on with the A/F ratio. It'll help you tune for optimal power too.
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From: Bend,OR
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a stock 4 barrel holley motorcraft, cant run o2 sensors, not legal. not sure the extensions will help, i think it runs out of fuel in the corners when the float goes up and it thinks the bowl is full so it doesnt let any fuel back into untill im in the straightway again, and that doesnt last long and im still leaning a little. so i need a center hung float, left side float, or wedge the carb. i believe.
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Its the same as I said before. when you turn left, fuel moves to right and up in the bowl which telling the float that its full or pulling fuel away from jets. Some 20 yrs. ago, I ran about the same set up, but I was restricted to stock intake and 2bbl. I never had the problem you have, but there was others that did. Do you have to run that Holley? Reason being, due to vacuum secondaries, I wouldn't think they would not open up much. Your playing w/ throttle too much. Unless its a 1/2 or more mile track. What intake you using and do you run a spacer between manifold and carb.
Post Fiend
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From: Topsfield, MA
Originally Posted by Kemicalburns
oh i get ya so he can get the air/fuel ratio right on the carb. Good call
I'm assuming he said he can't run an o2 sensor because it's illegal in the race he runs...
They don't let you set the engine up on a dyno?? I could understand not having an 02 during a race or full time...but you'd think you could weld in the bung for it and plug it when the 02 is not being used. I would think you could use the 02 during testing to get your engine working correctly...if not then I'd find something else vs blowing engines...
Last edited by MustangGT221; Jun 23, 2005 at 09:48 AM.
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Lets see, hook up O2 sensor, take it around the block, make all left hand turns. Wake up neighbors, pay ticket. Just kidding.
Mustang, we think he is loosing fuel in corners of a race track. His class of racing is to stay within a budget. Money would be better spent on a cheater carb. Although I agree an O2 sensor,with the rigors of circle track dirt racing it would only give him baseline to start with. (Floor it, slam on the brakes, goose it, and away we go for 300 ft. before doing it again).
Mustang, we think he is loosing fuel in corners of a race track. His class of racing is to stay within a budget. Money would be better spent on a cheater carb. Although I agree an O2 sensor,with the rigors of circle track dirt racing it would only give him baseline to start with. (Floor it, slam on the brakes, goose it, and away we go for 300 ft. before doing it again).
Post Fiend
Joined: Nov 2001
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From: Topsfield, MA
I understand about loosing fuel in the corners...
I was just simply trying to say that rather then reading the plugs, get the 02 sensor. If he had an 02 sensor before, he wouldn't of lost 3 motors already. It's about $400 for a wideband o2 sensor. I'd say he lost a lot of budget money on 3 motors...
You sound like you know what you're doing though...I'm not helping much.
I was just simply trying to say that rather then reading the plugs, get the 02 sensor. If he had an 02 sensor before, he wouldn't of lost 3 motors already. It's about $400 for a wideband o2 sensor. I'd say he lost a lot of budget money on 3 motors...
You sound like you know what you're doing though...I'm not helping much.