Discussion about prolonged High RPM - Yamaha Raptor Forum
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post #1 of 16 (permalink) Old 05-12-2017, 01:09 AM Thread Starter
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Question Discussion about prolonged High RPM

I started to wonder about the differences between a sport moto bike engine around 700cc's and a raptor engine.

Most Sport moto bikes are completely comfortable at cruising on the highway at 5000 to 6000 RPMS for a 100 miles nonstop. Especially with Enduro style touring bikes like a KLR or a XRL.

So what's the major difference in engine that allows them to do that? Or will the Raptor's engine be just fine with that? Most of those touring bikes don't have such a thunderous deafeningly loud exhaust so I'd assume at their RPMs it just sounds normal compared to a raptor half way wound out.

Obviously there will be a little more wear if you take into the fact that you aren't putting and lugging the engine around in dirt or something. But if you just kept it at a constant 5500rpm going around 55mph for lets say 30 minutes would it do okay?

Lemme know what you guys think

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post #2 of 16 (permalink) Old 05-12-2017, 05:44 AM
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Just seen this thread after staring one regarding sprockets here Discussion about prolonged High RPM

I'm looking at riding longer distance be interesting to see some other views on this.


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post #3 of 16 (permalink) Old 05-12-2017, 05:53 AM
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With correct gearing I feel there would be no issues. get a smaller rear sprocket for the Raptor and you should be OK.

[U]2006 raptor 700

Dual Biggun Evo R exhaust, Pro Design w/K&N, PC3
CP 11:1 piston, Lucky700r porting, HC3
RacersEdge +3TB
YFZ 450 fronts & reworked rear by JOGACA
Trailtech 1 1/8 xbar w/vapor dash & Vapor installed
ODI Rogue grips & ASV pro pack levers
PRM Edge Baja bumper w/12" Cree spot/flood bar
PRM Desert grab bar
PRM A-Arm skids, GYTR skid, ProArmor swinger skid
Fastway steering stabilizer

Last edited by morphrider; 05-15-2017 at 05:29 PM.
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post #4 of 16 (permalink) Old 05-12-2017, 07:01 AM
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The problem with the raptor doing that is it's a single piston. A 600 or 1000cc bike has 4 cylinders. That means each piston in a 1000cc bike is only 250. Less mass equals more rpm. That's why a Diesel engine is governed to 3500. There is so much mass there that the rod will either rip out the bottom of the piston or shear off if you push it too hard


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post #5 of 16 (permalink) Old 05-12-2017, 08:34 AM
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I did some crousing on road and I plan to do much more. When the engine is warmed up it can take a lot of abuse so dont worry about holding it on lets say half of throttle or even 3/4. It will do just fine. If the chinese street converted quads can do it I belive raptors won't have a problem either.
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post #6 of 16 (permalink) Old 05-12-2017, 05:04 PM Thread Starter
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I have mine geared to be at 4500 at 55mph maybe quarter throttle to keep that speed

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2016 Raptor 700r SE
11.1 CP Piston, HC3, Cuervo Racing +3 TB, Gutted Big Guns EXO, Pro Design Foam Intake, AIS Delete, PCV & Autotune with Cuervo Timing Curve, GBC XC Master Tires, 15T GYTR Front Sprocket, Trail Tech Vapor With Billet Mount, Powermadd Star Series Hand Guards, ODI Rogue Grips, Custom Grab Bar, Pro Armor Bully Guard, Pro Armor Full Skids, TM Designworks Poly Case Saver, Auxbeam 12'' LED Light Bar, Front & Rear Shock Rebuild by Jogaca
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post #7 of 16 (permalink) Old 05-14-2017, 02:53 AM
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To be honest I think acceleration puts more wear on the engine than just running it at the same rpm for extended time IF properly oiled and fueled. And not redlined ofcourse...but I would gear it according to your desired cruise speed like xmoweryx writes. It's very tiresome to run at high rpm for longer periods of time. Vibrations, noise...

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post #8 of 16 (permalink) Old 05-14-2017, 06:54 AM
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I'd get a 15t and maybe a 36t too if you want to cruise fast long distance


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post #9 of 16 (permalink) Old 05-15-2017, 05:27 PM
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Quote:
Originally Posted by morphrider View Post
With correct gearing I feel there would be no issues. If you notice on street bikes they have lotsa teeth on the rear sprocket, get a larger rear sprocket for the Raptor and you should be OK.
Come on Morph! Smaller rear equals higher gearing.

Maybe you were putting that beer fridge to use on this post..(I have to give ya a little bit of a rough time)


Last edited by Cammy; 05-15-2017 at 05:30 PM.
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post #10 of 16 (permalink) Old 05-15-2017, 05:30 PM
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Wow, that was a blonde moment, lol. Thanks for catching that, I edited it correctly.
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[U]2006 raptor 700

Dual Biggun Evo R exhaust, Pro Design w/K&N, PC3
CP 11:1 piston, Lucky700r porting, HC3
RacersEdge +3TB
YFZ 450 fronts & reworked rear by JOGACA
Trailtech 1 1/8 xbar w/vapor dash & Vapor installed
ODI Rogue grips & ASV pro pack levers
PRM Edge Baja bumper w/12" Cree spot/flood bar
PRM Desert grab bar
PRM A-Arm skids, GYTR skid, ProArmor swinger skid
Fastway steering stabilizer
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