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Positive changes, actually! (archive)

[ Follow Ups ] [ E30 M3 Message Board ] [ Msg. Board FAQ ]

Posted by Daniel Cooper on January 29, 2000 at 15:22:21:

In Reply to: Stroker??? posted by anthony on January 29, 2000 at 07:46:40:

Due to the large increase in torque of the 2.5, you won't need to rev the motor so high to make power. When I'm chilling, I often cruise around at 2500 rpms in 5th gear (C.R. gearbox), and when I punch it the car just pulls beautifully. Try doing that with the 2.3! Anyways, less rpms=less wear & tear on your engine=increased reliability!
Additionally, your mileage will stay pretty much the same, as the increased displacement will be pretty much offset by the lower revs. Finally, the stroker is just SO much more enjoyable to live with for street driving than the stock S14. Now when I drive my friend's stock '90 it just seems so peaky, buzzy and, well, slow. Just go with a really good builder such as Turner or Kermit Upton at Mountain Auto Sport Racing in Ludlow Vermont. Also, make sure to go "all out" with the big intake valves, large throttle bodies, Group A header, lightened flywheel, etc. Good luck!


: I'm seriously thinking of doing the 2.5 liter conversion. Can anyone inform me of any changes in maintenace, reliability and so forth. Any input will be greatly appreciated.

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