Ridley is correct once again - the YFZ and Cdale rev about the same though the Cdale sounds like a wreck doing it. Mine will almost instantly hit that 11,800RPM rev limit though, and no other quad can say that! The only thing close in throttle response is the YFZ with the FCR ... and it still isn't all the way there.

Just to think ... the Cdale quads are, at stock setting, the lowest TS setting available. Ridley .. just wait til you see one with the TS tuned down to 110 like the X bike came with. OMG! Transient sensitivity that throws fuel at it faster than you can move your thumb! Wicked!

11,800 baby! Woo woo!

 

My initial intent with this thread was to see which 4 stroke builds RPMs the fastest. This is an important engine characteristic to me for the type of power the quad develops. You have your slow revving torque monsters(Raptor, or so I've heard), your mid-hit wrist breakers(Preditor, or so I've heard) and then the tire burning top-end screamers(Banshee, and most other 2 strokes). How these different types build RPMs is what I'm looking at.

So what I'm really looking for is a 4 stroke that develops it's powerband closest to the Banshee. Most people seem to think the YFZ does.

 

LOL, this is so off the subject, but I have even met people who think that a Powerband is something mechanical on the bike!! LOL!!!!!

 

^^^^ LOL, That really hits home man. When I was about 12 years old I did actually think a powerband was some magical part of the moter that kicked in at a certain time, like a turbo, LOL. 13 years later and a lil wiser [img]i/expressions/face-icon-small-smile.gif[/img]

When I was 12 one of my older brother's friends had his YZ490 torn apart and when I asked him where the powerband was he pointed at the piston ring lol(joking ofcorse but I took him seriously). A month later when my dad and I were rebuilding my old Yamaha MX100 I mentioned something about getting the powerband back in and he looked at me like I was on drugs, he then proceeded to explain it to me.

But anywho, back to the subject. Anyone have some real nubers pertaining to a quad engine building revs? I don't mean max RPM, I mean how long it takes to get to max RPM. I've been searching forever and can't find any solid info.

 

It's been answered already.... YFZ450, or Cannondale but it probably wouldn't be a good idea to get one now. And a Predator is right up there if it had a decent carb. (39mm FCR)...

 

But are there any numbers anywhere I can look at. Opinions and "seat of the pants" are all fine but I'd like some numbers I can look at.

I have seen dyno tests, but are there any dyno tests that show HP per RPM compared to time(time being a 3rd variable)? I only ever see HP per RPM(only 2 variables), never with time as a 3rd factor. Know what I mean?

 

go ride them.....

 

the cannondales with efi or the new gas gas 450 with efi

 

Sorry, but before you make a mistake, you owned the same 250 i have now, heres the deal honda came out with the 450r four stroke, don't bother leaving honda because dirtwheeler announced it is their favorite wheeler, they said its at kleast as quick as the 250 out of the hole, and gets a good top speed, it has the best suspension theyve ever had on a stock wheeler, so get one of those you wouldn't want anything else

 

yah, hate to tell you but the 450r's are out and have been for a while, i think your dragging your feet to getting the check them out, its quicker than the yfz, predator, z, and even as quick as the shee, my neighbor is selling his shee for one because he said he never rode anything so sweet, so like i said dont bother with anything else theyre a waste of time and money