TRX250R.ORG

General => Lounge => Topic started by: jcs003 on February 23, 2014, 07:52:53 AM

Title: dyno sheet guy...
Post by: jcs003 on February 23, 2014, 07:52:53 AM

anyone know where the guy who was always posting up dyno sheets of different set-ups and combinations?  he was always doing dyno runs and posting over atvriders.  i want to take a look at the 72mm vs. 76mm stroke curves.

john

Title: dyno sheet guy...
Post by: jcs003 on February 23, 2014, 08:03:23 AM

i think this might be him but im not positive:

http://www.atvriders.com/vbb/showthread.php?355606-250R-PUMA-cylinder-%28399cc%29-dyno/

john

Title: dyno sheet guy...
Post by: rsss396 on February 23, 2014, 09:48:12 AM

Yes it was buttermilk he use to be on planet sand and and atv dragracers also  don't think he is messing with the 250r anymore

Title: dyno sheet guy...
Post by: jcs003 on February 23, 2014, 10:34:05 AM

thanks dave.  i was trying to find those dyno sheets through google with no luck.

john

Title: dyno sheet guy...
Post by: rsss396 on February 23, 2014, 11:04:17 AM

http://www.planetsand.com/forums/ubbthreads.php/ubb/showflat/Number/563969#Post563969

http://www.planetsand.com/forums/ubbthreads.php/topics/712382/Latest_250R_dyno_chart#Post712382

Title: dyno sheet guy...
Post by: udontknowme on February 23, 2014, 11:31:28 AM

bdt has some sharpie graphs if your interested

Title: dyno sheet guy...
Post by: jcs003 on February 23, 2014, 11:45:21 AM

Quote from: rsss396;26564

http://www.planetsand.com/forums/ubbthreads.php/ubb/showflat/Number/563969#Post563969

http://www.planetsand.com/forums/ubbthreads.php/topics/712382/Latest_250R_dyno_chart#Post712382

thanks dave. its a nice curve, very linear for sure and i have a very similar set-up.  50+ hp is nice.  what would it take to get 40 lb/ft of torque out of an OEM cylinder?

john

Title: dyno sheet guy...
Post by: jcs003 on February 23, 2014, 11:46:20 AM

Quote from: udontknowme;26565

bdt has some sharpie graphs if your interested

very true.  i heard the coc just bought the 8 pack of sharpies with all the colors.lmao!

john

Title: dyno sheet guy...
Post by: Pumashine on February 23, 2014, 12:22:25 PM

Quote from: jcs003;26551

i think this might be him but im not positive:

http://www.atvriders.com/vbb/showthread.php?355606-250R-PUMA-cylinder-%28399cc%29-dyno/

john

Oh yeah, the stock stroke Puma at 85 HP. I did not port mine so I probably only have 75 HP.

Title: dyno sheet guy...
Post by: jcs003 on February 23, 2014, 12:50:14 PM

Quote from: Pumashine;26569

Oh yeah, the stock stroke Puma at 85 HP. I did not port mine so I probably only have 75 HP.

that a ridiculous amount of power.  75 hp = a tree with my name all over it.lol

john

Title: dyno sheet guy...
Post by: rsss396 on February 23, 2014, 03:09:58 PM

Quote from: jcs003;26566

thanks dave. its a nice curve, very linear for sure and i have a very similar set-up.  50+ hp is nice.  what would it take to get 40 lb/ft of torque out of an OEM cylinder?

john

72 bore and a stroked crank probably,  40 lbs of torque is asking allot out of a 250