951 rpm's

[rusty]

Hi I have a 98GSXl with 110hours
the compression is 145 on both cylinders
at wot the oem tach reads a constant 6750rpm
does this sound correct?
how accurate is the stock tach

I will be adding prok filters and rejetting
how much rpm sould i gain?

Thanks
Rusty

[thomas]

The stock tach readout is not precise enough to get reliable readings. As for accuracy, I don't know, Bombardier screwed up on this one. They should have used a digital readout. Anyway, you should be seeing 6900+/-50. Aftermarket filters/rejet should get you + 100 to 150 rpms I would think. Bill could better answer that.

[rusty]

the Stock tach is digital

[thomas]

oops, it analog on my 98 XPL.

[Bill O'Neal]

Properly tuned You will see as much as 7020 rpm with an oem impellor. Our kit is $155.00, you can order it at 626 914 9509 M-F 9am to 4 pm PST.

[ August 18, 2003, 01:49 AM: Message edited by: Bill O'Neal ]

[plumber]

bill i installed proks,your rejet kit and installed a solas dynafly 14/20 with the stock exhaust and at wot was right at 6800.
is this about right with that prop and setup?
tom

[Blaine]

Come'on Bill !!!

I get 7050 consistantly with your kit on a 2001 RX w/ a stock impeller.

( Bill's stuff does better than he admits ) sssshhhhhhhhhhhhh

[Blaine]

OH YA ...

My wife had the same machine for 2 mos. Rusty and it did about the same 6750 - 6800 most of the time .....

Get Bills Kit you wont regret it !

[Bill O'Neal]

Yeah, that 14x20 dynafly will limit the rpm a bit.