Have you guys looked into what gearing you are going to use in the rear? I know of 3 gearing options for the E36 M3. 3.15, 3.23, and 3.38 all with 25% locking. Im worried that with the double overdrive of the T56 that 6th would be only for triple digit speeds. I havent done the gearing calculations yet to confirm my theory.
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E36 LS1 Final Drive
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Re: E36 LS1 Final Drive
Yes, the 3.91 LSD is what we went with. Matteucci calculated the gearing choice based on:
- Rear tire diameter (285/35/1
- to reach 70 mph in 2nd gear
+using the 2nd gear ratio for the T56 and
+7000 rpm limit - Choosing from the various BMW E36 rear gear set-ups
With a .75:1 5th gear and a .50:1 6th gear, highway cruising will still be perfect with that final gearing. Gotta love the T56 and it's two overdrives. Should still get 30 mpg!
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Re: E36 LS1 Final Drive
Originally posted by HIDGolfsweetness! Do you plan to modify the LSD to stay more "locked?" Is the 325's only 25% locking like the M3's?
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Re: E36 LS1 Final Drive
I know this is an O L D thread...
but If one were to daily drive a LS1/T56 equpied E36 on stock diameter tires w/ a 3.15 LSD how 'bad' would it really be?
The thought is that 275/35-15 on 15x10 for auto-x might work well, but street driving might suffer significantly.
I'm only considering this because I have a nice near fresh 3.15 LSD on the shelf in the garage with a extra pack in there for more locking that I'd really like to use w/o changing out the final drive. Plus it will make it's way under my E36 before I can get to the LS-1/T56 swap.Jon D. Simmons
1988 E30 M3 - STX #88
AST-USA | Bimmerworld | Butler's C&D | D-Force | Russ' Garage | Import Specialists
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Re: E36 LS1 Final Drive
mods... please don't approve my previous pending post. I finally calculated the gears and a 3.15 will be worthless on the street, but would lend itself to working well w/ 275/35-15 HoosiersJon D. Simmons
1988 E30 M3 - STX #88
AST-USA | Bimmerworld | Butler's C&D | D-Force | Russ' Garage | Import Specialists
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