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Old 01-07-2009, 08:24 PM   #21
VettezukiVettezuki is offline
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Originally Posted by 94cobra69ss396 View Post
That's good news.
They should know, but I'm not sure I totally believe it. I guess we could proceed with the stock unit, knowing that it'll probably go boom sooner or later. I want us to use and enjoy this thing.
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Old 01-08-2009, 10:23 AM   #22
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Originally Posted by Vettezuki View Post
This is from a site that does nothing but sell conversion parts for RX-7s.

"...The RX-7's layout and structure is well suited to engine conversions. The rotary engine's eccentric shaft centerline is way up in the center of the rotary engine, dictating a much higher transmission location than that of a piston engine. The net result is that Mazda designed the RX-7 with a HUGE transmission tunnel, big enough to fit even the monster T-56 6 spd manual transmission which was used in the Viper and Corvette. The rotary engine's low torque output required Mazda to use a very heavy flywheel and a high rear gear ratio, a combination of factors that combined induce large amounts of stress on the RX-7's rear axles and hubs. Mazda planned accordingly, and designed plenty of strength into the RX-7's rear differential/axles/and hubs. Experience has shown that the stock NA RX-7 components are strong enough to withstand low 10sec 1/4mi passes, a feat that requires around 500hp. "


Well, that's interesting. . .
Kinda surprising. Well, should we test that statement?
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Old 01-08-2009, 12:28 PM   #23
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Kinda surprising. Well, should we test that statement?
Obviously we have no idea what the internal condition of the diff is right now. We have three options.
1 - Stay with the stock unit til it go boom
2 - Replace with T II unit (if I can determine that it's up to the task)
3 - Replace with narrowed 8.8

For now we'll go with 1, research 2, and do basic planning for 3.
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Old 01-08-2009, 12:47 PM   #24
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Quote:
Originally Posted by Vettezuki View Post
Obviously we have no idea what the internal condition of the diff is right now. We have three options.
1 - Stay with the stock unit til it go boom
2 - Replace with T II unit (if I can determine that it's up to the task)
3 - Replace with narrowed 8.8

For now we'll go with 1, research 2, and do basic planning for 3.
That is a GOOD plan.
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Old 01-08-2009, 12:52 PM   #25
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Originally Posted by Vettezuki View Post
Obviously we have no idea what the internal condition of the diff is right now. We have three options.
1 - Stay with the stock unit til it go boom

For now we'll go with 1, research 2, and do basic planning for 3.
Second or third pass.
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Old 01-08-2009, 12:57 PM   #26
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Second or third pass.
LOL, I love your cynasism. I say we set the over/under at 3 passes. I'll take the over
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Old 01-08-2009, 01:01 PM   #27
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I say we test that statement and when/if it blows up we can say for certain it can't handle it.

I will say over, but not by much.
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Old 01-08-2009, 01:04 PM   #28
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LOL, I love your cynasism. I say we set the over/under at 3 passes. I'll take the over
Under. (If I drive it first, 1 pass)

Of course, without D/S and Axle Safety Hoops, I won't.
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Old 01-08-2009, 01:05 PM   #29
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I say we test that statement and when/if it blows up we can say for certain it can't handle it.
Ever seen what 350 HP does to a 3 1/2" Vette Halfshaft? I have. Looks like a donut/twist.
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Old 01-08-2009, 01:05 PM   #30
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Originally Posted by big2bird View Post
Under. (If I drive it first, 1 pass)

Of course, without D/S and Axle Safety Hoops, I won't.
Pussy!!!
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