NA rear end strength.
ive contemplated it. i have a complete t2 driveline to spare and my car is a 1990 gtu. i was wondering. how darn strong is the na rear end? i mean really? mazda trix sells driveshafts that fit just fine. why would they sell them if the rear end wasnt strong to begin with?
would 300 whp be pushing it? |
What are you planning to do with it?
For street use and light track use (autocross/HPDE/etc), I don't think you'll break the NA rear end. For drag use, you'll probably break things. -=Russ=- |
ah. i wont go to the track much. plus, on the streets, if i do bash on it kinda hard, the 205 wide tires will break traction before anything else breaks i bet. i just need to change the fluid and whatnot.
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its an old diff, the axles go b4 the diff
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I've heard of/seen a few guys running 11's and 12's on S4 NA LSD's with a turbo swap and they seem to be holding up fine.
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v8 swap guys also often keep the n/a rear end too.
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We've have broken two stub axles on NA diffs, and the diffs are still fine. The stub axles a perfectly designed to break with oil grooves cut in them that cross. Its like they put a dashed line like on toilet paper for it to "tear here"
I don't think you could make it worse design if you tried. We are running about 235-250 flywheel HP through them on 9.5in wide slicks. |
Originally Posted by jgrewe
(Post 7070400)
We've have broken two stub axles on NA diffs, and the diffs are still fine. The stub axles a perfectly designed to break with oil grooves cut in them that cross. Its like they put a dashed line like on toilet paper for it to "tear here"
I don't think you could make it worse design if you tried. We are running about 235-250 flywheel HP through them on 9.5in wide slicks. But a t2 diff will alway's be stronger and more practicle for drag. |
Slicks and roadracing, no drag starts.
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I wouldn't run a NA rear end with my V8 conversion. Wouldn't even dream about it. But I mean I love drag racing, and street racing and with drag radials that are 235/60/15 and about ATLEAST 450+ wrhp I would be snapping them. But I mean I would put it in and try to sell off the old stuff while you can get something for it before you break it or something you know what I mean
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