Quote:
Originally Posted by derbo
Anyone talked about 128i as a base if we are going swaps?
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A single turbo 135 could make really good power and be fairly reliable. Will need lots of cooling mods to make it work good for hard track use though. The issue is the 135 isn't that light. I had a 135 that I tracked before my E92 M3 and it weighted 3450, only 100lbs less then my E92 when it was stock.. ~3000lbs would be a reasonable stripped weight. <2900lbs would be a serious build. Not sure how light he's looking to get but ~2900lbs with 600-700whp is doable with an N54 135i.
The 128's are light because of an aluminum block engine, lighter trans and no turbos, intercoolers, piping etc. My 128 weights 3150, so 300lbs less then an equivalent speced 135 - and almost all the weight comes off from the nose, so they handle much better
Almost any swap will add weight to a 128 so probably not even advantageous over just doing a 135, unfortunately.