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Kirkham Motorsports

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Old 07-12-2011, 07:13 AM
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Location: Flower Mound, TX
Cobra Make, Engine: FFR MKIII 347ci stroker 450hp
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Originally Posted by Mike Huddart View Post
Put the extenders on the two jets in the FRONT bowl.
Mike
I talked directly to the folks who built the Carb and they said they go on the rear to stop the gas from sloshing up against the jets when you hard brake. If you think about it, the gas will go forward in the bowl when you brake and in the front the gas would flow away from the jets where as in the rear it would flow up against the jet. He said the flow up against the rear jets causes a vacum of sort which draws fuel into the carb thus flooding it.


For those who like me didn't know how this works I took a couple photos. In the photos you can see the silver jet extenders installed. If you do this, the flat portion needs to point up. Also they go on very tight and you have to tap them on with a small hammer. The white plastic thing at the top of the photo is the baffle. Someone had mentioned I needed to add baffle extensions but in my case they were already installed from the factory so I didn't need to do anything with them. I also included a photo of the package the jet extenders came in, in case someone wants to order them.

I haven't driven the car yet, it's to early and I would wake up the neighbors, but if this doesn't work I'll make a post, but I feel comfortable this will fix my problem.

https://picasaweb.google.com/1166402...vK8Mmm1Y3MiwE#

Wayne E

Last edited by wedgerton; 07-12-2011 at 07:16 AM..
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Old 07-12-2011, 07:21 AM
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Location: Devil's Backbone,RR 32, TX
Cobra Make, Engine: Lone Star Classics #240,Candy Apple Red,Keith Craft 418w - 602 HP,584 TQ
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Originally Posted by wedgerton View Post
I talked directly to the folks who built the Carb and they said they go on the rear to stop the gas from sloshing up against the jets when you hard brake. If you think about it, the gas will go forward in the bowl when you brake and in the front the gas would flow away from the jets where as in the rear it would flow up against the jet. He said the flow up against the rear jets causes a vacum of sort which draws fuel into the carb thus flooding it.


I feel comfortable this will fix my problem.


Wayne E
Then how come the engine doesn't go rich or flood when you accelerate hard and the gas flows up against the primary jets ??
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Old 07-12-2011, 08:49 AM
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Originally Posted by 392cobra View Post
Then how come the engine doesn't go rich or flood when you accelerate hard and the gas flows up against the primary jets ??
He said that when your excelerating the gas is getting sucked into the carb so it's not the same issue

Wayne E
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