Originally posted by nando
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Originally posted by The Dark Side of Will View PostThe DI eliminates most of the lag.
Considering how much BMW overbuilds their drivelines, I doubt the aluminum housing diffs would have any problems at all.
The E9x dash to axle distance is similar to the E46... which means that the E9x oil pan won't work in an E30 for the same reasons that an E46 oil pan won't.
However, the E70 X5 front drive assembly looks likely for the same reasons that the E53 X5 assembly looks likely.
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Originally posted by The Dark Side of Will View PostFYI, the 4 bolt pinion flange is on an E46 diff. The E46 diff doesn't fit the E53 pan. The E53 diff comes with a 3 bolt guibo flange. To use the E53 diff with this setup, you'll either need to make a 4 bolt to 3 bolt adapter plate or swap on the E46 pinion flange (and get pinion bearing preload/endplay right...)
Don't know the length of the splines though, probably longer.E30 325ix M50 turbo 7 spd DCT 4wd 840awhp @ 31 psi.
E30 M50 6 spd 764whp @ 24psi.
E30 M20 6 spd 675whp.
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Originally posted by Nisse Järnet View PostYeah, wonder if the flange fits the X5 diff? BTW the E34ix rear drive shaft connects the two pieces with a spline and bolt that holds them together, kinda like you did now :)
Don't know the length of the splines though, probably longer.
I was under the impression that by the time they produced the E46 and E53 concurrently, BMW had mostly ironed out the variations in the front diff architecture. I *think* that the gears are interchangeable.
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Originally posted by nando View PostThe E34 pan is 6 or 7 quarts, i was never doing a frankenpan.My Garage
2001 Z3 2.5i Steel Gray/Black (Lexi)
1988 325ix Diamond Schwartz/Black (Izzy)
1989 325i Cirrus Blue/Houndstooth (Stitch)
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yeah and that's in stock form. I made about 270 crank on a cold day with nothing but a home made tune. there's apparently a set of cams available from Schrick (nobody has tried them), and headers seem to make a big difference. I think you could knock on 300bhp with stock internals. the S54 can do like 350-360 stock, but it weighs like 150lbs more. Just doing some searching, I don't think anyone has done an N52 at all.
I don't think the smaller sump will be a big deal, as long as the pickup is working correctly. you'd want to do an oil cooler and I recommend using the ix power steering cooler setup as the S54 likes to cook PS pumps (due to the high revs).
I'm really thinking of listing all my S54 parts.. I've got probably $3-5k in parts sitting around. I have the custom transmission done, it wouldn't really cost me much to change directions given the motor is like 1/3 the cost.
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Looking at oil pans to see if it's any more feasible than the E34 pan. as it is, I was planning on modifying the E34 pan and/or ix subframe for it to work.
Here's the X5 3.0 (N52)
Here's the X5 M54:
Here's the E90 328xi (N52):
Needless to say, the E90 pan definitely won't work. the X5 N52 pan looks similar in dimensions to the X5 M54 pan though. I can't find any pictures of the X3 N52 pan, but it has it's own unique part #, perhaps since the X3 is even shorter, the axle centerline is further back.
if I can find an N52 pan that works it would also work for an N54 or N55.. keep that in mind. :)
Will, given that the X5 M54 and N52 pans look like they have similar dimensions - what do you think? will it work? it's not like the E34 pan is a slam dunk (although it is close).Last edited by nando; 11-24-2014, 08:14 AM.
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Any pan that fits the E53 chassis is going to be pretty similar in terms of the basic dimensions we need... crossmember clearance, axle location, etc.
We posted that block of sump measurements earlier in this thread.
Per those numbers, the sump lengths of the E53 and E34 is almost identical, so either one should fit where the other does.Last edited by The Dark Side of Will; 11-24-2014, 02:02 PM.
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the N52 came in the E70 X5, not the E53. it does look similar to the E53 pan though. if it is, I think it would work.
I'm really interested in finding an E83 X3 pan. it's smaller than the X5, so maybe the diff CL is further back like the E30.
there's lots of available ratios, and they changed the size of the ring/pinion on the newer cars. they now have a type 174 diff instead of the old type 168. so it's possible they're lighter and stronger. the turbo cars use the same diffs as the N/A cars so it should have plenty of torque holding capability as well. the X3 came with a 3.73 which would be perfect for my Getrag 260.Last edited by nando; 11-24-2014, 02:04 PM.
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