I'd say that's about right. I know that the biggest horsepower gain
on a TR3/4 is in the head, and that's not easy to get. The biggest
performance gain is tires--the difference between Dunlop L sections
and Hoosier DOTs is probably ten seconds a lap at PIR with a driver
that can use the advantage.
On Dec 23, 2006, at 1:14 PM, Tony Drews wrote:
> If my calculations are correct, based in 1.2 HP per cu in, 89 MM
> would make 6.7 HP more than 87 MM. 92 MM would make 17.3 HP more
> than 87 MM.
>
> I'm not sure I could feel 6 HP. I could probably feel 17,
> though. I'm still going to run the 87's...
>
> - Tony
>
> At 01:49 PM 12/23/2006, Kas Kastner wrote:
>> Easy to calculate how much more power from the big oversize's.
>> Figure about
>> 1.2 horsepower for each cubic inch increase. Not nuts on accurate,
>> but close
>> enough for holiday gripping.
>>
>> Never Be beaten by Equipment
>> Kas Kastner
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