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Old 08-23-2012, 03:35 PM   #1
Stefan11
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Join Date: May 2009
Location: Guelph/Ottawa
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need stroker details

there is seems to be plenty of information on building an inexpensive m20 stroker out there correct me if i am wrong:

2.7 litre eta block and rods
i pistons milled 3mm
stock i head?

it sounds almost too simple to be true.... If someone has built one of these would you please give me a sense of any improvement in performace over stock 89i motor.
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Old 08-23-2012, 05:06 PM   #2
Bullet Ride
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It's even easier than that. You can use the B27 bottom end and B25 top end with no modifications needed. You will make about the same power as the stock 2.5L motor but with more low end torque. You will also need the wiring harness and DME from the B25 motor. Overall though it's not a whole lot faster than a stock B25.

There's a wealth of information here http://www.e30tech.com/forum/showthread.php?t=48288
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Last edited by Bullet Ride; 08-23-2012 at 05:08 PM.
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