Bee Jay's throttle linkeage mod
Thread Starter
Safety Car
Joined: Nov 2005
Posts: 3,961
Likes: 573
From: Lompoc, CA. Santa Barbara County
Bee Jay's throttle linkeage mod
Here is a mod that really works.
I built this 383 engine this past winter. The good thing about this monster, is that it makes tremendous torque and horsepower right off of idle. The bad thing is, it makes tremendous torque and power right off of idle. It takes very little throttle to burn rubber and launch like a drag race. This is no fun when just cruising. The throttle is an on off switch. The original carb was a Quadrajet, and you would have to put the throttle half way down before the secondaries would even start opening. Not so with this Holley 4Di fuel injection. The secondaries are not progressive and all four blades start opening all at once. My friend, Wild Gill, built this bracket for me that moves the throttle cable mount point 14 mm up and 10 mm back, slowing the throttle action significantly. What a difference! I have more control over the throttle now and can enjoy this monster engine. The car is much more enjoyable to drive, and I can modulate right up to traction loss, or I can mash it and burn.
I built this 383 engine this past winter. The good thing about this monster, is that it makes tremendous torque and horsepower right off of idle. The bad thing is, it makes tremendous torque and power right off of idle. It takes very little throttle to burn rubber and launch like a drag race. This is no fun when just cruising. The throttle is an on off switch. The original carb was a Quadrajet, and you would have to put the throttle half way down before the secondaries would even start opening. Not so with this Holley 4Di fuel injection. The secondaries are not progressive and all four blades start opening all at once. My friend, Wild Gill, built this bracket for me that moves the throttle cable mount point 14 mm up and 10 mm back, slowing the throttle action significantly. What a difference! I have more control over the throttle now and can enjoy this monster engine. The car is much more enjoyable to drive, and I can modulate right up to traction loss, or I can mash it and burn.
Team Owner
Joined: Apr 1999
Posts: 21,953
Likes: 1,445
From: Reno Nevada
2024 C3 of the Year Finalist- Modified
Nice part fabrication!
I noticed that your temp sender is on the side of your AFR head right next to the header flange. Like mine used to be. I thought mine read artificially high.........................
silly me i see that you moved it in the bottom picture to your tall manifold filler housing
I don't think that I am pit crewing this year at the Rolex Laguna Seca event unless things change. Intrepid just brings about 6-7 cars these years and the boss sold his Lola t286.
http://tech-racingcars.wikidot.com/lola-t286
I noticed that your temp sender is on the side of your AFR head right next to the header flange. Like mine used to be. I thought mine read artificially high.........................
silly me i see that you moved it in the bottom picture to your tall manifold filler housing
I don't think that I am pit crewing this year at the Rolex Laguna Seca event unless things change. Intrepid just brings about 6-7 cars these years and the boss sold his Lola t286.
http://tech-racingcars.wikidot.com/lola-t286
Thread Starter
Safety Car
Joined: Nov 2005
Posts: 3,961
Likes: 573
From: Lompoc, CA. Santa Barbara County
Thread Starter
Safety Car
Joined: Nov 2005
Posts: 3,961
Likes: 573
From: Lompoc, CA. Santa Barbara County
Nice part fabrication!
I noticed that your temp sender is on the side of your AFR head right next to the header flange. Like mine used to be. I thought mine read artificially high.........................
silly me i see that you moved it in the bottom picture to your tall manifold filler housing
I don't think that I am pit crewing this year at the Rolex Laguna Seca event unless things change. Intrepid just brings about 6-7 cars these years and the boss sold his Lola t286.
http://tech-racingcars.wikidot.com/lola-t286
I noticed that your temp sender is on the side of your AFR head right next to the header flange. Like mine used to be. I thought mine read artificially high.........................
silly me i see that you moved it in the bottom picture to your tall manifold filler housing
I don't think that I am pit crewing this year at the Rolex Laguna Seca event unless things change. Intrepid just brings about 6-7 cars these years and the boss sold his Lola t286.
http://tech-racingcars.wikidot.com/lola-t286
That sensor is just for turning on the fans. I've since grounded the wire so that the fans are on anytime the ignition is on. I was really worried about this 383 beast overheating.
Last edited by Bee Jay; Jul 14, 2016 at 02:20 PM.
