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08-17-2010, 11:20 AM
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Member
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Join Date: Jun 2009
Posts: 47
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Power with 91 octane
I was just wondering what kind of power and what kinds of engine mods can you do and still remain using 91 octane.
I use my quad for both MX (just hitting the track for fun, not racing) and trail riding, this is why I would like to be able to just use pump gas.
-DRP
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08-17-2010, 11:50 AM
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Senior Member
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Join Date: Nov 2009
Location: Maquoketa IA
Posts: 684
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Don't go with a high comp piston. Just keep it simple
__________________
08'DS450X, Rossier exhaust, K&N intake,FMF tuner, Falcon connecting rod, 13:5:1 comp piston, WEB cams, cyl head porting,FLEXX bars,Motoworks clutch, DG double net nerfs, TAG bumper,custom graphics 
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08-17-2010, 01:13 PM
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Super Moderator
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Join Date: Feb 2009
Location: so cal
Posts: 4,396
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Well I run 91 and I feel my bike has PLENTY of power for trails, dunes or track. Its not like dirtdevilz1 but I know I can pull the front end up in any gear by just hitting the throttle, not clutching or pulling it lol....checl out woods racing they have a very good kit if u wanna stay on pump gas....
__________________
08 can-am ds 450
Ron Woods race core exhaust
dual exhaust cams
PC3
K&N filter
14/39 gears
Blingstar bumpers
Dragonfire nerfs
Epic LT w/ KYB remote resi
texture coated accents
custom 2010 conversion
COMING SOON:
12.5:1 piston
custom intake
web cams
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08-17-2010, 01:39 PM
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Senior Member
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Join Date: Aug 2009
Location: Poland
Posts: 104
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and how about 98 octane? Is it enough for high comp piston? thanks!
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08-17-2010, 04:56 PM
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Super Moderator
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Join Date: Feb 2009
Location: so cal
Posts: 4,396
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Y would u want a hi comp piston or higher octane gas? Especially for trail riding? I run 91 with full exhaust, exhaust cam, PC3 etc n have plenty of power...I mean PLENTY. Are u running any mods right now)
__________________
08 can-am ds 450
Ron Woods race core exhaust
dual exhaust cams
PC3
K&N filter
14/39 gears
Blingstar bumpers
Dragonfire nerfs
Epic LT w/ KYB remote resi
texture coated accents
custom 2010 conversion
COMING SOON:
12.5:1 piston
custom intake
web cams
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08-17-2010, 05:29 PM
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Senior Member
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Join Date: May 2009
Location: Costa Mesa, CA
Posts: 187
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Just get the woods kit like hcomras, it will rip with those mods. I thought mine was fast enough with the yosh pipe and programmer until I rode his. Good thing my quad + rider weight is slightly less, hahaha
__________________
08 DS450
Full Yoshimura Pipe
WeaponMX FMI
Pro Design Intake w/ K&N
Pro Armor MX Bumper and Grab Bar
BCS Billet Clutch Basket
BCS inline cooler
Universal Bars
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08-17-2010, 06:25 PM
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Senior Member
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Join Date: Dec 2009
Posts: 1,151
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so the only difference you have w/hcomras' is the exhaust cam and different programmer and it's that much different?
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08-18-2010, 12:35 AM
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Super Moderator
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Join Date: Feb 2009
Location: so cal
Posts: 4,396
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hahahaha yea thats it...well...the exhaust is different...hes got a yoshi that i like, nice and quiet, it makes a good difference...but my bike has the woods race exhaust, exhaust cam, PC3 with a custom fuel map and filter. yea it makes that much of a difference lol. almost 50hp. ALMOST. dyno tuning is the secret.
im not down playing anyones bike or praising mine, just saying for trails, woods, dunes, and occasional track, you dont need a 60+hp beast like dirtdevilz1 lol. hi comp pistons and ported heads and yada yada yada gets expensive to do, and to maintain. you can get quiet a bit of power out of the right tuning.
where do u live? wanna test ride my bike 
__________________
08 can-am ds 450
Ron Woods race core exhaust
dual exhaust cams
PC3
K&N filter
14/39 gears
Blingstar bumpers
Dragonfire nerfs
Epic LT w/ KYB remote resi
texture coated accents
custom 2010 conversion
COMING SOON:
12.5:1 piston
custom intake
web cams
Last edited by hcomras; 08-18-2010 at 12:37 AM.
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08-18-2010, 01:23 AM
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Senior Member
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Join Date: Aug 2010
Posts: 103
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just wanted to know if any body every runs ethanol. my bros zx 14 rips way better w/ethanol it is a noticable gain. I read just a bit on why more power and came up with there is more oxgen in it burns faster but also more power. any info pros and cons is welcome thanks!
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08-18-2010, 01:31 AM
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Super Moderator
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Join Date: Feb 2009
Location: so cal
Posts: 4,396
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just wait for TNT to chime in...youll get ur info....and then some lol
__________________
08 can-am ds 450
Ron Woods race core exhaust
dual exhaust cams
PC3
K&N filter
14/39 gears
Blingstar bumpers
Dragonfire nerfs
Epic LT w/ KYB remote resi
texture coated accents
custom 2010 conversion
COMING SOON:
12.5:1 piston
custom intake
web cams
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