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My new undertray
5 Attachment(s)
A little backstory -- couple years ago I hit a racoon (kilt him good), dislodging my undertray which dragged along the road long enough to wear away on the front passenger side. Was still usable, but wasn't channeling much air into the rad. Never had much of a problem with temps, since once my fans came on they stayed on due to the fan switch wiring mod that I've recently removed.
Anyways I got tired of the tattered tray. I didn't want to replace it with a new one ($160 for an unrelated pass. side fender liner hurt enough) and cut it since I'm using a fmic now. I pulled a piece of galvanized steel from my brother's shop, and he helped pound together an undertray. Heres a few pics from the build. Mocking it up with heavy paper: https://www.rx7club.com/attachment.p...1&d=1283314743 https://www.rx7club.com/attachment.p...1&d=1283314793 https://www.rx7club.com/attachment.p...1&d=1283314793 https://www.rx7club.com/attachment.p...1&d=1283314793 https://www.rx7club.com/attachment.p...1&d=1283314793 |
https://www.rx7club.com/attachment.p...1&d=1283315250
16 gauge, I think. A little heavy, but that's what we had. https://www.rx7club.com/attachment.p...1&d=1283315250 https://www.rx7club.com/attachment.p...1&d=1283315250 Riveted the sides to the bottom... https://www.rx7club.com/attachment.p...1&d=1283315250 https://www.rx7club.com/attachment.p...1&d=1283315250 1 1/4" stacked foam weathersealing tape from Lowe's https://www.rx7club.com/attachment.p...1&d=1283315250 |
3 Attachment(s)
https://www.rx7club.com/attachment.p...1&d=1283315886
We rolled three beads into it. I was worried that it would have a bit of warble at speed, but the beads stiffened it up. No noise whatsoever. https://www.rx7club.com/attachment.p...1&d=1283315886 I effed up the relief cut on the left side of this pic, had to re-do it with the nibbler. The front of the tray fits overlaps the bumper lip by at least 1", soon I will take the time to drill holes and bolt it to the bumper. https://www.rx7club.com/attachment.p...1&d=1283315886 |
I made one out of metal that just goes from fender to fender. It's made out of some cheap kind of metal and weighs 11lbs lol...mines just a flat sheet with no bends though.
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I wanted to model the stock one as close as I could, so that it would force as much air as possible through the rad. That's one way of doing it though!
Originally Posted by zammm
(Post 10193492)
I made one out of metal that just goes from fender to fender. It's made out of some cheap kind of metal and weighs 11lbs lol...mines just a flat sheet with no bends though.
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Nice. I've been thinking of doing something like this since I just converted to a front mount.
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Originally Posted by houseofsmokes
(Post 10194967)
Nice. I've been thinking of doing something like this since I just converted to a front mount.
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^ Could it be because when they put the front mount right up against the bumper the piping that comes off of it requires them to cut the sides of the undertray off. Like Ryan's car?
:scratch:But that is still not a good enough reason to ditch the stock one alltogether. John |
The blitz looks like a wicked clean install. I think I remember Rich posting pics of the install, you didn't even have to remove the bumper to get it in, did you?
My intercooler is the knock-off Greddy kit from rx7store.net. Like renesisfd said, you have to cut the front of the stock tray so that it will clear the piping. To me, building one was a better alternative to buying a new stock one and cutting the crap out of it. |
If you have a diff F bumper you may need a custom undertray. I did one a while back too, laser cut, etc..
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Originally Posted by GoodfellaFD3S
(Post 10195260)
My 99 undertray works fine with my Blitz FMIC. Not sure why people seem to think they need custom ones :scratch:
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