Google Groups no longer supports new Usenet posts or subscriptions. Historical content remains viewable.
Dismiss

2002 GSXR 1000 Top Speed

487 views
Skip to first unread message

Brian

unread,
Jun 16, 2003, 11:31:38 PM6/16/03
to
What is the top speed of the 2001 GSXR 1K? I run with a TRE and the
speedo displays 295 kmh (183 mph) but the GPS I was hauling logged the
speed in at 269 kmh (167 mph). The difference between the speedo and
GPS is 9.22%. The inaccuracy doesn't surprise me as much as the 1K is
only able to get up to 167 mph. I heard reports that it could top
near 300 kmh (186 mph). I have reasons to believe that the GPS is
accurate. Any comments?

Shadowfax

unread,
Jun 16, 2003, 11:40:45 PM6/16/03
to
brian....@matrikon.com (Brian) wrote in
news:69e4bfd9.03061...@posting.google.com:


I’d believe the GPS over the speedometer as bike speedos are
notoriously optimistic.

I’m sure “someone” got the GXSR up to 186 but depending on the
elevation where you live, the weight of the rider, how well you tuck-in
out of the wind, how much room you had to get to speed and a million
other variables, 167 may not be so bad. Anyway, 167 or 183 or 186,
does it “really” matter?

BTW, my speedo is off by 8 – 10 %. Although I’ll never see 180 on my
bike (or likely ANY bike ;^)


--
Scott
98 Triumph Daytona

**Remove the NO and SPAM from my e-mail address to reply**

Dan Carter

unread,
Jun 17, 2003, 12:49:35 AM6/17/03
to
Brian wrote:

Three US magazines report top speeds of 173, 175, and 177mph for the
GSXR1K. My guess is that those are "true" speeds, not limited in
software, so the TRE[1] wouldn't improve it. Compared to the Hayabusa,
the big Gixxer is slightly less powerful and less aerodynamically clean,
so it's gotta have a lower top speed than the unlimited Busa did
(somewhere in the low 190s for the '99). A cocktail-napkin calculation
based on the Cycle Canada wind tunnel study (which can be found here,
http://www.sportrider.com/tech/146_0106_aero/) and various magazine road
tests estimates a top speed of 175 for the 1K.

It may be possible to get a little more out of it than 167. Stuff like
lowering the bike, removing mirrors, increasing tire pressures, and even
waxing are the traditional tricks for getting a few more mph.

[1] timing retard eliminator--a device that fools the software into
thinking its always in 3rd gear (or whatever). Apparently, power is
shaved in code by retarding timing in 1st gear to prevent blow-over
wheelies and, perhaps, in top gear to limit top speed.

--
Dan Carter, San Luis Obispo, CA

Reassembler

unread,
Jun 17, 2003, 2:09:30 AM6/17/03
to

"Brian" <brian....@matrikon.com> wrote in message
news:69e4bfd9.03061...@posting.google.com...

Your size, small differences in engine tune, altitude, there are lots
of things that could affect your top speed. If it breaks your heart, go to
a tuner who uses a dyno, and ask him to dial it in for top speed, put your
affairs in order, and try again. 10% off is average for most speedo's. I
think they just want the "boy racers" to feel good.

Reassembler


timeOday

unread,
Jun 17, 2003, 8:46:58 PM6/17/03
to
Brian wrote:

Well, the indicated 295 is suspiciously close to 300, which is when the
speed regulators kick in, no?

Robert Grote

unread,
Jun 19, 2003, 7:26:40 AM6/19/03
to
and it matters, why?

How about you learn to ride it...
just for factual enlightenment... gps is dead on, which is where you'll be
if you continue down this path of idiocy.


"Brian" <brian....@matrikon.com> wrote in message
news:69e4bfd9.03061...@posting.google.com...

0 new messages