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-   -   Lightened Motor Rear Mount Bracket? (http://forums.pelicanparts.com/porsche-autocross-track-racing/1025803-lightened-motor-rear-mount-bracket.html)

ZOA NOM 04-06-2019 07:38 AM

Lightened Motor Rear Mount Bracket?
 
Anyone have pics of the rear motor mount that has been lightened, or an alternative mount to replace the heavy pulley cover? I've seen the crossmember drilled out, but what can be done with that lower cover?

Walt Fricke 04-11-2019 08:18 PM

You mean this?

http://forums.pelicanparts.com/uploa...1555042653.jpg

I've seen them with a lot of smaller holes on the narrower or more curved surfaces.

ZOA NOM 04-12-2019 06:14 AM

Yeah, that thing weighs a ton, and I'm looking for ways people have lightened this area. I was wondering if you could fabricate a flat plate that follows the mounting holes. I'm racing this weekend, so I'll make sure to take a peek around. Thanks Walt

Walt Fricke 04-12-2019 03:17 PM

If you are an ME, and have access to CAD/CAM, and a budget, probably not hard. The thing I want most to do back there on my GT car is to fabricate a combination of cross bar and rear chassis member, attached at the end of each cross member. This allows you to cut off the stock cross member, and pull the engine straight back when you need to get it out. A number of shops have done this for customers, but it isn't as easy as taking a bunch of hole saws to the motor mount and stock cross mount.

On reflection, Bruce Phillips of Albuquerque made a combo mount out of aluminum years ago, just without I think removing the cross member.

Cutting holes in stock parts has got to be the best bang for the buck, though.

Mahler9th 04-14-2019 06:43 PM

Lot's of ways to skin this type of cat.

My engine support:

http://forums.pelicanparts.com/uploa...1555296089.jpg

It had to be reinforced at one point after some cracks developed.


This rear set up was fabbed by some friends... simple design:

http://forums.pelicanparts.com/uploa...1555296135.jpg
http://forums.pelicanparts.com/uploa...1555296135.jpg


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