Current GM Q-jet Rules

oldskool · 02-27-2017, 06:00 PM

While we're on the subject, I've got more questions.

(1) What is a ballpark figure that one of the good class car Q-jet builders would charge to build a Stocker type unit, using my core ?

(2) Aprox how much quicker is a Q-jet which is built by one of the top class racer guys, as compared to a good average street/strip or bracket race build ? Just wondering if it would be worth the extra $$, if all you wanted to do was just be able to run slightly under your index, rather than building to win all your heads-up races. (Not looking for any good buys on ready to race carbs--just gathering facts.)

(3) In pics I've seen, it shows the choke plate still in, Stock & SS. So, is it a rule that the choke plate must remain ?

(4) Haven't seen any pics of the Stock & SS cars running an air cleaner. So, aprox how much power is lost by using a good air cleaner set-up ? I assume there have been lots of dyno and track tests for this, thru the years.

02-27-2017, 06:00 PM	#19
oldskool VIP Member Join Date: Dec 2014 Location: The Land of Bayous, Boudin & Crawfish Posts: 1,668 Likes: 223 Liked 748 Times in 363 Posts	Re: Current GM Q-jet Rules While we're on the subject, I've got more questions. (1) What is a ballpark figure that one of the good class car Q-jet builders would charge to build a Stocker type unit, using my core ? (2) Aprox how much quicker is a Q-jet which is built by one of the top class racer guys, as compared to a good average street/strip or bracket race build ? Just wondering if it would be worth the extra $$, if all you wanted to do was just be able to run slightly under your index, rather than building to win all your heads-up races. (Not looking for any good buys on ready to race carbs--just gathering facts.) (3) In pics I've seen, it shows the choke plate still in, Stock & SS. So, is it a rule that the choke plate must remain ? (4) Haven't seen any pics of the Stock & SS cars running an air cleaner. So, aprox how much power is lost by using a good air cleaner set-up ? I assume there have been lots of dyno and track tests for this, thru the years.