Visit The Dirt Forum for More Information

Author Topic:   Willy's carb problem
happy
Dirt Full Roller

Total posts: 73
posted May 02, 2005 06:53 AM  
We run a limited mod class and have to run a 2 barrel 500 cfm carb, our choice was the Willy's. Lately we have had problems with when mashing the throttle the motor falls on its face for a second before it picks up rpms. This will happen at any rpm range, we tried rejetting up and down with no luck, the fuel pressure ( mechanical pump ) is holding at a constant 9 psi. No back firing from the carb or popping from the headers.
Any ideas?

Xtreme12x
Dirt Forum Champ
Total posts: 874
posted May 02, 2005 07:00 AM  
where ya racin at?? call willys first... they should be able to help

sdhnc29
Dirt Forum Champ
Total posts: 934
posted May 02, 2005 04:18 PM  
I'd call Willy's and speak with them. Unless your running alcohol, 9lbs of fuel pressure is about 3.5 - 4 lbs too high for a Holley 2bbl on gas.

Steve

------------------
Hendren Racing Engines
Rutherfordton , NC
(828)286-0780
www.hendrensracingengines.com
www.experienceodessa.com

sbc350
Dirt Full Roller

Total posts: 59
posted May 02, 2005 08:58 PM  
Is the accelerator pump arm loose on the cam? Mine was falling on its face like you're saying yours does. I took out all of the play and it made it snappy again.

streetstock82
Dirt Forum Racer

Total posts: 81
posted May 02, 2005 09:52 PM  
also check the discharge nozzle and make sure its shooting on both sides. ive had dirt pack up in there and cause that problem.Also make sure its not ignition related

Back to the Archives