At 03:16 PM 7/15/99 , dg50@daimlerchrysler.com wrote:
>
>Points noted from several sources - OK, 2.5 is too small for OHC motors.
3.2 is
>too big.
Why is 3.2 too big? There's a big community of "rocket-ized" M3's out there
who autocross regularly but NOT with the SCCA, and would love a place to play
in the SCCA. And there is almost no performance difference between the 3.0L
95 M3 and the 3.2L 96-99 M3's (which is the great majority of M3's). (There
is a little difference -- but its the smaller 95 engine that's faster --
OBD-II is a pain.)
> STU displacement limits are as follows:
> - for overhead camshaft engines - 3.000 litres
> - for pushrod valvetrain engines - 4.000 litres
> - for rotory (wankel) engines - 1.500 litres
Interesting approach.
The Honda motors tend to produce surprising HP numbers vs. displacement.
Does that advantage continue to hold when you super/turbo-charge them??
If so, you may need a fourth category for VTEC.
Finally, are there any cars that come stock with _solid_ rather than
hydraulic lifters? If so, how do they turbo-charge??? I suspect they
may allow much more HP and could use a smaller limit. However, they
may not exist in stock trim.
Brian
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