Bog off the line ?

[Jody Lang]

I think your sec. spring is too light for your combination. Start your weekend out with the plain (stock) spring and be prepared to try a heavier one.

The heads might be a little big for your combination and might also need a bigger squirter to make up for lack of velocity.

Is this a #3310?

My bracket car has a 3310 on it. It runs mid 11s. Plain spring, 72 76 jets with a 028 squirter.

Good luck.

[CJohnson]

Originally Posted by Jody Lang

I think your sec. spring is too light for your combination. Start your weekend out with the plain (stock) spring and be prepared to try a heavier one.

The heads might be a little big for your combination and might also need a bigger squirter to make up for lack of velocity.

Is this a #3310?

My bracket car has a 3310 on it. It runs mid 11s. Plain spring, 72 76 jets with a 028 squirter.

Good luck.

Thanks for your help Jody,

Ya this carb is a 3310. I will try the .037 squirters and a stock spring this weekend,

Thanks again.

[cad]

Your "bog" is very likely a lean condition like stated. Try the bigger squirters, AND make one change at a time, and keep notes.
Jody -- will the spring affect the launch much? I am thinking not much, if any. If anything, it will stay lean a little longer.
Clark Doukas

[cad]

Does the car idle well in gear?
Are the throttle blades manually adjusted to be open too far and uncovered the transfer slot?

[cad]

Last item I have is an article that talks about baseline setup, and the transfer slot:
http://www.carcraft.com/howto/77958/index.html

[CJohnson]

Well guys, changing the squirters was night and day difference, car launches way better with no stutter at all.

I tried it today the way it has always been set up and it went a 13.20 - 1.870 60 ft. and with just the .037 squirter change it went a 13.08 with a 1.840 60 ft. So im very happy with how it is launching now

Thanks for all the help !

[Jody Lang]

Clark, spring would definetely affect the launch. A bog from a too light spring can also cause consistency issues.

C, glad to hear you fixed it. If you have time this weekend or another weekend humor yourself and try that spring. It should help. Good luck.

[CJohnson]

Originally Posted by Jody Lang

Clark, spring would definetely affect the launch. A bog from a too light spring can also cause consistency issues.

C, glad to hear you fixed it. If you have time this weekend or another weekend humor yourself and try that spring. It should help. Good luck.

Thanks Jody,

At the next test and tune I will try a heavier spring for sure.

Thanks,
Craig - C693