Quote:
Originally Posted by arrivederci
On the subject of engine mounts, notice that the one in Bill's picture is reinforced at the ends. This is a great idea...those things twist quite a bit.
For transmission durability, I guess it depends how you treat it. I too heard people cautioning me about the 915 but I haven't had an issue nor do I know anyone with a 3.6L that has grenaded their 915. I did go with an '84 euro 915 (not my stock magnesium cased one) and I didn't add an LSD hoping to stress the transmission a little less, maybe having a little wheelspin here or there on one wheel. 911s get such great traction anyhow and I don't track this car, so the lack of LSD is hardly noticeable.
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There is a lot of torque going thru the cwp in the lower gears, w/ a 3.8 RS at wot in 1-3 I could make the trans weep
The original mg. /44 was better in this respect as it came stock w/ a steel girdle stabilizing the si/o shafts, I also went w/ a /67 for the trans cooling feature but recomens adding a steel girdle here too.