Show Us ur broken transmission from road race
7 Attachment(s)
All the 16 year of track, the most oroblem I have is always stock transmission…………
I blow more then 10 set, most of them are 3th gear With my. New endurance rx7 I spend great amount of time to cool my transmission Well It still Did not last 2 season of race😌 |
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Originally Posted by mhr650
(Post 12116273)
Up shift or down shift??😒 |
I don’t know I wasn't driving the car at the time but it was probably a downshift, we had a bunch of rookie race drivers in the team at the time so their shifting technique left plenty to be desired.
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No pics, might have a few teeth still lying around though. Last box to blow was OS Giken, 3rd gear plus countershaft destroyed....running coolers on diff and gearbag.
The only box that seems to live in enduros down here that has any semblance of "stockness" is a re-housed Hollinger, but looking at $20k Aud + with strain gauge, etc...then there's ongoing dogbox maintenance every so often. |
holy crap, how much HP are you pushing? Is your clutch sufficient?
Have you looked into cyro treating the gears? Cryogenic Treatment of Gears- Gear Solutions Magazine Building the Bulletproof Transmission, Secrets of the Pros > MotoIQ - Automotive Tech, Project Cars, Performance & Motorsports |
Originally Posted by mhr650
(Post 12116273)
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Originally Posted by mhr650
I don’t know I wasn't driving the car at the time but it was probably a downshift, we had a bunch of rookie race drivers in the team at the time so their shifting technique left plenty to be desired.
Originally Posted by billyboy
No pics, might have a few teeth still lying around though. Last box to blow was OS Giken, 3rd gear plus countershaft destroyed....running coolers on diff and gearbag.
The only box that seems to live in enduros down here that has any semblance of "stockness" is a re-housed Hollinger, but looking at $20k Aud + with strain gauge, etc...then there's ongoing dogbox maintenance every so often.
Originally Posted by TomU
holy crap, how much HP are you pushing? Is your clutch sufficient?
Have you looked into cyro treating the gears? Cryogenic Treatment of Gears- Gear Solutions Magazine Building the Bulletproof Transmission, Secrets of the Pros > MotoIQ - Automotive Tech, Project Cars, Performance & Motorsports |
Originally Posted by mustanghammer
(Post 12116812)
Had I opened up gear box, I am sure it would have looked like this too. My 3rd gear failed on an upshift
On my rotary super 7 It fail on the warm up lap😢 U can see it how gental I shift still fail At 29sec mark |
1 Attachment(s)
How’s this for a seriously broken transmission…
Attachment 607598 Happened last Saturday, our problem was a bad rear u-joint causing vibrations and loads into the tailshaft housing. We changed the transmission but ended up putting another tailshaft housing on this transmission putting it back in and running it on Sunday. |
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