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2.7 bmw
Posted: Wed May 17, 2006 6:27 pm
by willson1983
Hiya. I went to see a e30 the other day, This guy had built a bit of a custom engine from a 325i. He said he had put a 2.7 crank in from a rare model. Could anyone shed any light please?
Posted: Wed May 17, 2006 6:40 pm
by AndyTouring
He'd used the crank & rods from a 525e which was actually 2.7 litres. It's a common upgrade when rebuilding the M20 six cylinder engine.
525e's aren't that rare though they are getting rarer!
Posted: Wed May 17, 2006 7:08 pm
by willson1983
Does doing this upgrade yield much extra power then?
Posted: Wed May 17, 2006 7:11 pm
by Simon13
if done properly then yes an extra 30-40bhp and lbs over a standard 2.5 lump.
most don't make 200bhp tbh but they are alot more get up and go compared to a 2.5 from low revs
Posted: Thu May 18, 2006 10:42 pm
by paulg390
If its any help I've just bought a 2.5 converted to 2.7 with a proven 200bhp and 196lb/ft, spec...
Reconditioned 525e conrods
Reground 525e crank
Schrick 282/272 cam.
BTB mild steel 6 branch manifold.
Zone chip.
Zone big bore throttle body.
K&N air filter with heatshield
Posted: Thu May 18, 2006 10:46 pm
by Simon13
that will be jimbobs old car?!
Posted: Mon May 22, 2006 8:51 pm
by paulg390
Simon13 wrote:that will be jimbobs old car?!
Yep that's the one...
