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Weigth reduction mods.. what woks for the evo...

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Old Oct 8, 2005 | 06:20 AM
  #46  
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From: Sacramento, CA
Originally Posted by Vishnu_Evo8
this may be a dumb question, but is there anyway to get rid of a sun roof other than buying an mr roof?
I had the sunroof removed when I had my cage installed. I first had a shop cut a piece of plexiglass and bond it in place. It lifted out in the summer heat.

I then had a body shop weld a steel plate in place of the sunroof. Works great. Just needs some paint.
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Old Oct 10, 2005 | 02:26 PM
  #47  
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Originally Posted by jid2
You can't weld in a MR roof panel. It's Aluminum, the Body is steel. Mitsubishi rivits it in with a special seal. It's actually pretty trick, so don't think you can just put an MR roof on a standard Evo and not have it leak.

You can weld in panel, that's what all the race shops do to cars with sun roofs.
Mitsubishi uses self-piercing rivets to attach the aluminum roof, but blind riveting an aluminum roof to the standard 8 is okay, it's even addressed in the technical white paper about the roof:

4.5 Reparability
Since SPRs represent a special joining method and
require costly equipment, they cannot readily be used
for repairs. Joining methods that allow repairs to be
performed less expensively than is possible with SPRs
were thus considered. As a result, blind rivets, which
offer at least the same strength as SPRs with the joining
method used when repairs are performed, were
adopted (Figs. 10 and 11). Unlike SPRs, blind rivets
require holes to be made prior to insertion, meaning
that sealant must be used to prevent water ingress.

From: http://www.mitsubishi-motors.com/cor...004/16E_15.pdf
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