Torque vs. Rev- how much difference?

If you ride allot at or above the KIPS opening RPM level (6000 RPMs) then the Rev pipe is for you. It doesn't have to do with throttle position, but the RPM range you ride in. If you ride your KDX like a 125 motocrosser and you like the feeling of a noticable hit in the power band, then you'll definately want the Rev pipe. I have both the -35 and the -30 and prefer the -35 torque pipe.

I have the throttle pinned quite a bit in the lower RPM ranges. Any time I want power without wheel spin I pin it at low RPM levels. I can also cruise down a dirt road at 1/4 throttle and be at 7000 RPMs with the KIPS wide open. Most of my riding is done below 6000 RPMs. I like that torquey pull that I get below the KIPS opening point. If I'm play/racing my son, then I use that quick snap I get from higher RPMs. I find that riding on the KIPS valve just means I'm ripping the tire loose all of the time which is OK when I'm racing or just want to really get on it...but, most of my riding is below that intensity level (I tire too quickly at that pace).

I live in Meridian (just west of Boise) and find myself desert riding most of the time. My boys are a little intimidated by too hairy of woods riding (which I prefer) so I ride allot of open desert to accommodate them.

If you've used both, how much difference is there between the two?

Click to expand...

There is, "quite a lot". I found the torque pipe to really beef up the mid-range. The bike would pull a lot stronger through loose, power-robbing dirt than with the stock pipe. I didn't find a huge difference off the bottom.

The rev pipe puts the "strong pull" at the upper rpm ranges, like Rhodester said.

I usually run the torque pipe - but then I like to shift early, ride tight trails, & am more of a "lugger" than a "screamer" in riding style. Sounds like you might be a "rev" kind of guy!

BTW - Modifications and jetting make a huge difference. You can tone down - or "tone up" - the rev pipe's hit w/different jetting packages. I run a DF II reed valve, and that smooths things out, too - at least on low tension (I haven't tried high).

If you've got the $$, you'll have fun w/2 pipes!

Jeff