Pontiac - Race The next Level

          
 
 
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Old 03-07-2024, 02:43 PM
Johnny406's Avatar
Johnny406 Johnny406 is offline
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Join Date: Jan 2006
Location: Colorado Springs, CO
Posts: 2,877
Default Motor mount dilema

I have the motor out of the race car and have completely gone through it and will soon be ready to stick it back in. While it's disassembled, I am seriously thinking about doing a motor mount change.

Currently, my 78 T/A has a rollbar, solid body mounts except the front, welded in subframe connectors and tubular control arms, so it's pretty stiff.

My 463 was bottom filled years ago and I've been running solid mounts for years with a poly transmission mount. As my horsepower has increased, a higher stall (4400) converter and now capable of using a bigger nitrous shot, I'm worried that I am starting to push my luck with the solid mounts.

The class I race in our heads up series, a front and mid plate would be breaking the spirit of the rules and I don't have near the power to race small tire. They already adjusted the rules for me to allow me to keep the fiberglass fenders so I don't even want to try it.

With that said and looking in the search features, it seems like running a solid left and a stock right mount is a good alternative. I was also thinking of buying these mounts from Butler (see picture) and running a turnbuckle.

I am a footbrake racer and I do use a progressive nitrous controller when running nitrous for heads up racing which does help my cause some.

THANK YOU!! -John

P.S. The car on motor will pull wheelies of occasion on a prepped track.
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Johnny US Army Retired
1978 T/A 463 Pontiac, KRE 74cc 292CFM D-ports, Lunati VooDoo, V-max lifters, TKII, ATM 850 E85 carb, TCI TH-350 race tranny, 3600 converter 3.73 12 bolt 11.63@116.68mph
1981 T/A 4-speed 406 Pontiac, Merrick ported 6X heads, Comp 270S cam, Crosswind intake 750 Street Demon, 3.42 30 spline Eaton posi street car.
1980 Formula 350 Pontiac back burner project
1972 LeMans 350 Pontiac
 


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