Re: [ST] Higher RPM for racing?

[Matthew Heyer <matthewheyer@xxxxxxxxx>]

That's generally not how it works...
 
It's more of a trade-off between low-end power and driveability, and high-end, higher hp numbers.  So yes (and I agree 100%), having the power low-down is much more user-friendly, and better for the road.  I wouldn't want my GSX-R 750 on the road (even just on the power side of things).  It doesn't have great low-end power, wants to be kept on the boil, and is a bit of work to do so.  Too much work and noise for the road when you are not pushing it.  If you are cruising and don't want the engine cranking along at 8k or so, then you need to drop gears to get passing power and the such.  However, the extra power on the track of the GSX-R, I wouldn't give up for anything.  You are keeping the engine on the boil anyway, really never letting it down below 6k or 7k on the REALLY tight corners, so the trade-off of the loss of down low power and driveability isn't an issue - you simply don't run the bike down there.  And having more power is big.  That's why again I'll agree -
 twins and triples for the road (except for certain fours that are not designed as hypersports).  But on the track, it's another story....
 
Hope that helps.
 
 
Matt Heyer


----- Original Message ----
From: Joel Ashman <ashmite@xxxxxxxxx>
To: st@xxxxxxxxxxxxxx
Sent: Tuesday, August 22, 2006 5:54:20 PM
Subject: [ST] Higher RPM for racing?


OK so I need a little education...  When did it become preferable to have
higher RPM for racing? It seems to me (a non racer) that given 2 motors with
the same displacement, one with 12000 RPM and 150 HP (and a peaky curve) and
a 6000 RPM 150 HP (flat curve) that the lower one would be more usable on
the track.  Hit a gear and hold it in a turn instead of shifting.  I hated
the ride I had on a newer R6.  I had to downshift 3 times to pass a car
downhill, while on my Sprint, I just nail the throttle and go.  Also, it the
two above motors consumed the same amount of fuel per cycle, the 6000 RPM
would get better mileage and therefore pit less for refueling.

Again, I'm just curious, and its really because I dislike the streetability
of the modern racing style bikes.  I can never talk someone out of a
Hyabusa who just wants a bike to cruise around and to work and back.  Gimme
a V-twin or Triple anyday.

(Which leaves me to choose between the Monster 695 or the Speed Triple next
spring)

--Joel
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