benefits of a mid plate

Shocks, Springs, Brakes, Frame, Body Work, etc

Moderator: Team

Post Reply
prairiehotrodder
Expert
Expert
Posts: 610
Joined: Sat Dec 24, 2011 10:02 am
Location: melfort saskatchewan Canada

benefits of a mid plate

Post by prairiehotrodder » Tue Apr 12, 2016 4:54 pm

I am considering putting a mid plate and a front motor plate in my 81 malibu with a BBC. I have the tranny out right now so it would be a good time to do the mid plate. What are the benefits of a mid plate? I was thinking of building my own and using 10 gage steel. The motor is currently mounted with moroso solid mounts in the stock position. Once i got the mid plate done and the tranny back in then i would buy an aluminum front plate and install it. Then get rid of the moroso mounts.
Brian
The Word of God is quick and powerfull
www.therocketshop.blogspot.com

Coloradoracer
Pro
Pro
Posts: 443
Joined: Sun Mar 21, 2010 9:48 pm
Location: Conifer, Colorado
Contact:

Re: benefits of a mid plate

Post by Coloradoracer » Sat Apr 16, 2016 9:40 am

It eliminates the twist on acceleration. Be warned however, if you don't have a cage in the car, the frame can still twist and possibly break the mounts or the plates themselves. They will not cure a bad chassis. You also HAVE to run limiters to keep the engine and trans located front to back, as the plates can flex under the acceleration and weight of the engine/trans. A mount on the trans is NOT enough, and can break the case even if it's a rubber or poly mount. NEVER EVER use a solid trans mount in any application......

When you go to install it, you need to make sure your entire powertrain is properly aligned with the rear end as well. They are not just a bolt in part.
Mark Goulette
Owner/Driver of the Livin' The Dream rear engine dragster
Speed kills but it's better than going slow!
http://www.livinthedreamracing.com
Authorized Amsoil Retailer

prairiehotrodder
Expert
Expert
Posts: 610
Joined: Sat Dec 24, 2011 10:02 am
Location: melfort saskatchewan Canada

Re: benefits of a mid plate

Post by prairiehotrodder » Sat Apr 16, 2016 2:29 pm

Thanks Coloradoracer, my car has only a 6 point bar but it does currently have solid motor mounts. Should i stay away from the mid plate untill i have a cage with the bars going forward through the firewall?
The Word of God is quick and powerfull
www.therocketshop.blogspot.com

LCaverly
Member
Member
Posts: 126
Joined: Tue Jul 15, 2014 4:27 pm

Re: benefits of a mid plate

Post by LCaverly » Thu Apr 21, 2016 8:36 pm

Run a rear plate and a factory style side mount this allows the chassis to flex without introducing undue stress on the block. all the torque is absorbed at the bellhousing flange ,the strongest part of the block.
Len C

Post Reply