Q-jet experts , couple questions

[Redlight]

What is the minimum clearance you can run from air cleaner base to hood/air cleaner lid?

Not running a choke so is there any advantage removing the tower a'la Holley?

How about epoxy work around the top rim?

Any simple/cheap tricks for improving flow on the primary side?

Oh, it's for a bracket car so the "rules" don't apply.


Thanks

[tj310]

Just wire the choke open goes just as fast, we use a flow thru lid goes just as fast as nothing.
some castings are larger on the primary side eg 454 motorhome
Thanx Trevor
re air cleaner lid k/n style yes. re dime a dozen I buy my Quadrajets by the pound and I think that other co. is bankrupt....again

[Redlight]

Trevor,

The choke blade,rod etc all have been removed and mounting holes filled.

Are you talking about K&N style lid?

[Alan Roehrich]

One of the air cleaner bases with the really big radius will help direct air flow. I don't know that the K&N lid helps that much. It may or may not, depending on the area around the carburetor, and only experimenting will tell you.

You need an inch or so at least between the hood and the vent tube. The Q-Jet is a very sophisticated fuel metering device, and air flow around the bowl vents and the feeds/bleeds is critical, excessive turbulence or a lack of clearance around them can upset the circuits.

The Doug Roe book on Q-Jets is one of the best sources for Q-Jet information and tips. No Q-Jet racer should be without a copy of his own.

[Bob Pagano]

"Oh, it's for a bracket car so the "rules" don't apply."

Why run a Q-jet when Holley carbs are a dime a doz. and simpler to tune.

[Mark Yacavone]

Originally Posted by Bob Pagano

"Oh, it's for a bracket car so the "rules" don't apply."

Why run a Q-jet when Holley carbs are a dime a doz. and simpler to tune.

I was wondering the same thing, Bob.


No, you can't remove the tower on a Q jet without making a mess out of it.