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-   -   slight surge 600 cfm edelbrock (http://www.hotrodders.com/forum/slight-surge-600-cfm-edelbrock-181074.html)

tuff82 07-14-2010 08:19 PM

slight surge 600 cfm edelbrock
 
Hey! Just crusing at slight throttle it runs awesome, as soon as i get into the trottle a little bit I get a slight bucking, surge. When I get on the throttle a little more it goes away, im thinking maybee running a little lean part throttle? Think I should richen it up?

techinspector1 07-14-2010 08:40 PM

Quote:

Originally Posted by tuff82
Hey! Just crusing at slight throttle it runs awesome, as soon as i get into the trottle a little bit I get a slight bucking, surge. When I get on the throttle a little more it goes away, im thinking maybee running a little lean part throttle? Think I should richen it up?

http://www.edelbrock.com/automotive_...ers_manual.pdf

sqzbox 07-14-2010 11:34 PM

Check for vacuum leaks first. :D

wayneooo 07-15-2010 02:42 AM

stop holding so tight on her ears :thumbup:

tuff82 07-15-2010 04:45 AM

HA HA thanks guys, wouldent a vac leak be evident when i stomp on the gas, im gonna check anyway tho, thanks!

cobalt327 07-15-2010 05:09 AM

Quote:

Originally Posted by tuff82
HA HA thanks guys, wouldent a vac leak be evident when i stomp on the gas, im gonna check anyway tho, thanks!

Check to be sure you get fuel flow immediately from the accelerator squirters. Might help changing to the bigger shot hole in the linkage, if it isn't already. Not necessarily for a bigger pump squirt, but because it will place the pump piston at a different place in the bore. This is what might help the pump to give a quicker delivery.

Could be the timing- if you're using a vacuum advance can, the decrease in vacuum caused by the acceleration will cause the timing to drop. Possibly adding some more total timing and decreasing the vacuum advance a like amount might help.

Rhansen 07-15-2010 06:17 PM

my first thought is to try a stiffer spring on the metering rods, might be lean until the vacuum goes down enough to hit enrichment mode.

tuff82 07-15-2010 07:51 PM

I tried the springs on the meetering rods a week ago, i went to a smaller rod tonight and made a big difference, im gonna go a little more and it sould take care of all of it, at least its an edelbrock!

runn141 07-15-2010 07:56 PM

maybe increase the accelerator pump stroke?

tuff82 07-15-2010 08:09 PM

right ill try that out


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