Slant *        6        Forum
Home Home Home
The Place to Go for Slant Six Info!
Click here to help support the Slant Six Forum upgrade!
It is currently Mon Sep 24, 2018 7:17 am

All times are UTC-07:00




Post new topic  Reply to topic  [ 9 posts ] 
Author Message
PostPosted: Mon Feb 12, 2018 5:05 pm 
Offline
3 Deuce Webber

Joined: Mon May 26, 2014 4:02 pm
Posts: 94
Location: Vermont
Car Model*:
It seems like a great way to have both economy and airflow. They were installed on 318s so it would seem a well built 225 might do as well with one as a holley 390...

I have no actual experience with ether, I am just putting thoughts together that do not belong in the same room..


Top
   
PostPosted: Mon Feb 12, 2018 5:45 pm 
Offline
SL6 Racer & Moderator
User avatar

Joined: Sat Oct 19, 2002 12:06 pm
Posts: 6904
Location: Silver Springs, Fl.
Car Model*:
I haven't tried it, but I have always thought a Spreadbore carb should work nice on a warmed slant with some tuning required, but I was thinking Q-jet.

_________________
Charrlie_S
65 Valiant 100 2dr post 170 turbo
66 Valiant Signet 225 nitrous
64 Valiant Signet
64 Valiant 4dr 170


Top
   
PostPosted: Mon Feb 12, 2018 6:19 pm 
Offline
Supercharged
User avatar

Joined: Sun Nov 03, 2002 9:20 pm
Posts: 12102
Location: Fircrest, WA
Car Model*:
Frank Raso used to advocate the Q-jet, and there was a member who managed to carefully saw a Thermoquad in half and run it as a spreadbore two barrel. Somewhere I have pictures of that.


Top
   
PostPosted: Mon Feb 12, 2018 6:20 pm 
Offline
Board Sponsor
User avatar

Joined: Tue Oct 29, 2002 8:27 pm
Posts: 9523
Location: Salem, OR
Car Model*:
You'd have to get a Q-jet or Holey 4360 to bat in the 400-500 cfm range... the standard mopar T-quads are big and anything but a
built slant would be able to use the 700+ cfm big block units...


Top
   
PostPosted: Mon Feb 12, 2018 7:32 pm 
Offline
Turbo Slant 6

Joined: Fri Apr 16, 2004 10:50 am
Posts: 640
Location: Stevensville, ON
Car Model*:
I'm happy with the Q-Jet on my car and I like it better than the AFB I had on it previously. I have it turned 90° like I had the AFB. It gets better fuel economy than the BBS too.

Quadrajet Upgrade

_________________
1965 Plymouth Barracuda,
225 engine, Quadrajet, HEI, Dutra Duals, 904 Torqueflite, 2.76:1 axle, Addco front bar
Rods & Relics - Fort Erie, ON / Collector Car Tech


Top
   
PostPosted: Tue Feb 13, 2018 10:36 am 
Offline
3 Deuce Webber

Joined: Mon May 26, 2014 4:02 pm
Posts: 94
Location: Vermont
Car Model*:
FrankRaso wrote:
I'm happy with the Q-Jet on my car and I like it better than the AFB I had on it previously. I have it turned 90° like I had the AFB. It gets better fuel economy than the BBS too.

Quadrajet Upgrade


Ok, I will become a student of the Q-jet..

Frank, which side do you have the primary's on, away from or towards the engine?


Top
   
PostPosted: Wed Feb 14, 2018 10:06 am 
Offline
Turbo Slant 6

Joined: Fri Apr 16, 2004 10:50 am
Posts: 640
Location: Stevensville, ON
Car Model*:
Keep in mind that Quadrajet and Thermoquad carburetors are obsolete and tuning parts can sometimes be a challenge to acquire. Luckily for me, all I needed for tuning my Q-Jet was some primary jets.

I have my carb facing the driver-side fender. My reasoning for this this that the carburetor will operating for the vast majority of time with the secondaries closed and I wanted the primaries to be as equidistant as possible to all cylinders.

Write-ups here:
Quadrajet Conversion
Quadrajet Tuning

_________________
1965 Plymouth Barracuda,
225 engine, Quadrajet, HEI, Dutra Duals, 904 Torqueflite, 2.76:1 axle, Addco front bar
Rods & Relics - Fort Erie, ON / Collector Car Tech


Top
   
PostPosted: Wed Feb 14, 2018 12:04 pm 
Offline
Supercharged
User avatar

Joined: Sun Nov 03, 2002 9:20 pm
Posts: 12102
Location: Fircrest, WA
Car Model*:
Found it!

TWO BARREL THERMO QUAD


Last edited by Reed on Wed Feb 14, 2018 12:14 pm, edited 2 times in total.

Top
   
PostPosted: Wed Feb 14, 2018 12:13 pm 
Offline
3 Deuce Webber

Joined: Mon May 26, 2014 4:02 pm
Posts: 94
Location: Vermont
Car Model*:
FrankRaso wrote:
Keep in mind that Quadrajet and Thermoquad carburetors are obsolete and tuning parts can sometimes be a challenge to acquire. Luckily for me, all I needed for tuning my Q-Jet was some primary jets.

I have my carb facing the driver-side fender. My reasoning for this this that the carburetor will operating for the vast majority of time with the secondaries closed and I wanted the primaries to be as equidistant as possible to all cylinders.

Write-ups here:
Quadrajet Conversion
Quadrajet Tuning



I overlooked the link you provided in your earlier post. Your write-up on tuning the quadra-jet is detailed and easy to follow. More than enough info here to get me in well over my head... Thank you!


Top
   
Display posts from previous:  Sort by  
Post new topic  Reply to topic  [ 9 posts ] 

All times are UTC-07:00


Who is online

Users browsing this forum: Google [Bot] and 2 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
Powered by phpBB® Forum Software © phpBB Limited