Could you take some measurements on those gears along with the one that keeps breaking? I'm talking with a gear manufacturer about making a hardened gear set for us.
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E30 325iX turbo with 1018hp / 1016Nm @ 2,3bar
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This is what I received today from the manufacturer I've been dealing with. I might try to buy ten after I send in my gearset and get a good solid quote.
Jonathan,
The simplist approach would be to have the factory gears heat treated--hardened.
To do that, you would have to know what kind of steel the factory is using to make these gears.
We can make this type of gear. A good gear steel is AISI8620 which must be carburized and
hardend to HRc 58/60 with a 0.030" case depth in this case. This gives a hard wear surface and a flexible core strength to accomadate shock loading.
Straight-tooth bevel gears made from AISI 8620 carburized and hardened to HRc 58/60
with a 0.030" case depth and with a standard internal spline would cost in the range of
depending on size and quantities ordered. Higher volume orders
would be appreciably discounted.Last edited by Jjona5; 09-06-2010, 08:45 AM.
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Well I have just sent off my 4.10 front differential to the gear manufacturer. Im getting a custom hardened gear set made...probably more like 5-10 depending on the price drop he offers. If they sell...they sell. If not I'll have backups for years to come. I also plan on having custom front driveshafts made down the road. I would like to give the owner of this car a set to run it through the rigors to see how it does...
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nice - any idea of cost? that would be worth doing for anyone modding an ix, although I guess front used diffs have been cheap enough.
there's already a guy that does lengthened front driveshafts, are you planning something different? the only possible improvement would be making it easier to remove, I've been beating on it for years and it's held up perfectly.
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