|
|
01-06-2010, 10:26 PM | #1 |
Member
Join Date: Jul 2002
Posts: 241
Likes: 35
Liked 33 Times in 11 Posts
|
legal qjet
Are the Ram air qjets with the small boosters legal for any application as long as the throttle bores are the same? I know at one time, everyone was looking for them but thought I read on here recently that I read they were now illegal.
Also- does anyone still have saved the Danny Ashley Qjet thread from a few years back? Was very informative and I have misplaced my printed out copy. Thanks! |
01-06-2010, 10:41 PM | #2 |
Member
Join Date: Nov 2001
Location: Marion,In.
Posts: 259
Likes: 44
Liked 108 Times in 25 Posts
|
Re: legal qjet
Bert,
The 1971 single booster Pontiac Q-Jets are only legal on the engines that they came on as I was told by an NHRA tech man. Post or send me your E-Mail address and I'll send you the Q-Jet 101 articles. My E-Mail is ashley74@comteck.com |
01-07-2010, 12:52 AM | #3 |
VIP Member
Join Date: Jul 2007
Location: Anthem, Arizona
Posts: 2,766
Likes: 0
Liked 2 Times in 2 Posts
|
Re: legal qjet
That's not consistent with the various types of boosters that are mix-and-matched in Holley carb applications.
__________________
Jeff Lee 7494 D/S '70 AMX |
01-07-2010, 08:04 AM | #4 |
VIP Member
Join Date: Oct 2002
Location: On a hilltop in Pa.
Posts: 4,330
Likes: 3,337
Liked 7,198 Times in 1,610 Posts
|
Re: legal qjet
And there you have another perfect example of NHRA selectively applying their rules! Intentionally or not.
__________________
Billy Nees 1188 STK, SS I'm OK..........it's everybody else. |
01-07-2010, 01:16 PM | #5 | |
VIP Member
Join Date: Jul 2007
Location: Anthem, Arizona
Posts: 2,766
Likes: 0
Liked 2 Times in 2 Posts
|
Re: legal qjet
Quote:
I'm sure you've seen more than one Holley 4bbl in tech with no concerns about thinned boosters.
__________________
Jeff Lee 7494 D/S '70 AMX |
|
01-07-2010, 07:41 PM | #6 |
Member
Join Date: Mar 2002
Location: West Chester, PA
Posts: 271
Likes: 1
Liked 4 Times in 1 Post
|
Re: legal qjet
To clarify the question- most Q-Jets have a booster as well as a ring around the booster. The only exception is a Pontiac Ram Air carburetor from one year only (1971). That particular throttle body is sought after by collectors, and the last I heard, cores were selling at about $1,000.
The removal of this ring adds about 50 cfm to the flow, probably a lot more than changing booster sizes or angles in a Holley. The use of the Ram Air throttle body would have clearly been illegal before the rule change that allowed any carb with the same throttle blade and venturi diameter. It is less clear now, as the rule book addresses only the throttle blade and venturi sizes. Danny- when did you have this conversation with an NHRA tech man- recently?
__________________
Tony Curcio 1860 STK Last edited by Tony Curcio; 01-07-2010 at 07:47 PM. |
01-08-2010, 12:22 AM | #7 | |
Member
Join Date: Feb 2009
Location: Weeki Wachee, Florida
Posts: 348
Likes: 416
Liked 18 Times in 12 Posts
|
Re: legal qjet
Quote:
Sent you and email Danny !
__________________
"Real Race Cars Have Tailgates" |
|
|
|