Rear-end and chassis question on r.e.ds

Why are the mounting brackets on a custom fabricated rear-end parallel to the wheels when nearly all rear engine dragster chassis' angle in from the rear motor plate.

Would it not be more practical to angle them slightly so they run in line with the centre line of the pipe, thus directing the torque to the chassis, or is there a power advantage having them parallel.

Its understandable on a bolt together cast housing, and of course for interchange ability.

 

One reason being the taper would not allow the plates to slide (in and out) between the brackets.

Kurt-ProstartRacrCars

www.prostartracecars.com

 

thanks kurt for you thoughts, for the past 18 years this was solved by using 1/4" 4130 on both and having the rr bracket outside of the chassis brackets, this way the rr slid over and snugged up to the chassis brackets. am building a new rear end and wasnt sure whether to use the same principal.

 

Any "spec" chassis requires 2 plates on frame, and I would not put mount plates under single shear. Non spec you can do what you want, I did a deal like that on an AED many moons ago.

 

Ownblock,
It sounds like you are about to weld yourself into a corner. Any angled concept not parallel to the chassis centerline and perpendicular to the ground will leave you with only being able to install the rear housing by sliding it down from the top or up from the bottom....and that might not even be impossible due to other interference items.
Did I say all that correctly Kurt?

At least that is what I perceive from your explanation.
The torque and twist will get to where it needs to go. Don't make it harder than it has to be.

http://www.koehlerinjection.com