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i walked away wile the page was loading, and glanced and saw that rear close up pic,

i came running back, looks very nice.
 

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^ tom? is that your name? i hope i got that right.

i dont think your car will benefit much from a diffuser. it might benefit you more to cover up underneath the engine bay.

but either way, i made it using some 1/20" aluminum and bent it by hand. then i put the pieces together using rivets.
 

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Found a good link about underbody panels for mr2s
http://www.geocities.jp/crazy_shift/underpanel.html

same guy did a rear diffuser as well:
http://www.geocities.jp/crazy_shift/riaander.html

IMO, I'd cut holes under the radiator for air to flow upwards. I suspect he didn't because he made his own border style relocation kit for the radiator:
http://www.geocities.jp/crazy_shift/syujyutu.html

Also, I'd seal extend the rear diffuser towards the front of the car and seal off underneath the engine bay. Maybe including a few holes under important components (oil cooler, etc)
 

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Thanks for the link. What thickness do you guys recommend? I guess as thin as you can go without being too flimsy??
 

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1/8 would be fine but a little overkill IMO. I used .090 5053. If you used T6 I wouldn't be afraid to go with .062
 

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94MR2 said:
I meant 1/8" abs plastic. Do you think 1/8 is overkill in plastic?

I think it's overkill, I just ordered 3/32" from www.usplastic.com and now wished that I went with 1/16". It all depends on the span of your support mounts, if you have a larger gap to bridge then you need somthing like 3/32".
 
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