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Post by harrell79cj5 on Mar 14, 2008 13:48:51 GMT -5
I have been told from some people that i could improve my off road performance on inclines by adding an inline electric fuel pump closer to the carb. I am running a Weber 38 DGES on a 258 with the stock mechanical fuel pump. anybody done this or know about it?
When on inclines mine either stalls or seems to take the gas pedal from my foot hauling butt up, which causes wheel spin and less control (works perfect on declines). Is this supposed to be that way?
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Post by jharfst on Mar 15, 2008 19:40:43 GMT -5
Well, there's basically one of two problems you could be having. Either too much or not enough fuel. Sounds like the surging would be caused by too much and is the most common problem. Fuel in the float bowl on incline spills out the bowl vent into the throat of the carburetor. An electric pump wouldn't fix this problem. Fixes include a carb that has a bowl vent that won't spill like the Holly Truck Avenger or some type of injection system.
The other problem could be fuel starvation. This is the problem I had at Hot Springs last labor day. My mechanical pump couldn't deliver up the incline to the carburetor. Mine always stalled unless I kept it revved up and it was very hard to crank back. Once when I couldn't get it to crank back, I opened up the carb and found the bowl was dry. An electric pump should fix this problem. If you do add an electric pump, most all like to push fuel rather than pull it, so it's best to add it as close to the tank as possible. Mine is on the frame rail just behind the driver's seat.
-jim
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Post by harrell79cj5 on Mar 17, 2008 11:49:16 GMT -5
Thanks, i will check into it some more!
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