LED performance - 525 before - 554 after, same engine on the dyno
Page 2 of 2 FirstFirst 1 2
Results 21 to 33 of 33
Like Tree1Likes

Thread: LED performance - 525 before - 554 after, same engine on the dyno

  1. #21
    Senior Member KTMATVHQ Member
    Join Date
    Feb 2009
    Posts
    329
    I can say with 99% certainty if you ran Craig's motor as built (with all the Thumper Parts ) against the LED motor he would walk away from it.

    This is why I don't post dyno numbers. They are very subjective. Just like it was said I can change hp numbers in 5min and by 15hp by changing a correction factor or by just changing the way I roll on the throttle.

  2. #22
    Senior Member KTMATVHQ Guru
    Join Date
    May 2009
    Location
    Western WA
    Posts
    1,102
    Travis I'm fairly local to LED. Should I take my build down there to see how it performs?
    99mm thumper cylinder 15:1 comp, Crankworks billet stroker, Custom Carrillo short rod, Racers edge +4ti head, 48mm hsr carb, Shortened and stretched trx fci intake, Custom programmed vortex

    296lbs ready to ride. This might be the fastest ktm duner in the world

  3. #23
    Administrator KTMATVHQ Guru
    Join Date
    Feb 2008
    Location
    Auckland, New Zealand
    Posts
    4,264
    now that would be interesting ! do it !
    KTM 505 SX: Web cams / 13.5:1 custom CP / balanced and modded crank / custom Vortex X10 ignition / Ported head / 43.5mm billet centre bored carb / KTM Akrapovic muffler / Mino hi vol water pump / 12 deg flexx's / houser stem / elka 5 / PEP PB1's and PEP LT rear / Walsh Flow A Arms / Quad tech seat & Foam / CF nose / FCI intake / relocated batt box / KTM Bill header / KTM factory SS Oil Pump setup / Manual cam chain tensioner Next round of mods: oil cooler........ the NEW TOP DOG 114 hrs…. best race engine I've owned

    KTM 554 XC
    : sx style crank, light weight SXF flywheel, TT sxf stator, steel linered cylinder, custom JE piston ceramic coating, plus 1 ported head / 807 cam, 43.5mm carb. Mino hi vol water pump. KTM Bill custom exhaust, FCI intake, JB A Arms, PEP PB1s front LT and rear , Lonestar axle, 12 deg Flexx's, CF nose, elka 3 steering damper, KTM factory nerfs, factory white plastic and graphics / gell cell battery Next round of mods: oil cooler........

    gotta stop spending $$$ on these KTM's...…..

    Polaris Outlaw 525 IRS - 2011
    , lonestar plus 2 A Arms, cut MXR front shocks (minus 1 ") with ZPS / ttripple rate, FUJ rear suspension rear shock mount units drops ride height 2", FUJ HD adj sway bar, 1.5” rear billet wheel spacers, Polaris nerfs, bumper and rear rack, Yoshi competition slip on, Pro Taper bars, acerbis hand guards, Trailtech GPS with billet protector. KTM throttle / Honda Front master cylinder and shorty lever / 41mm carb & hi flow intake runner / big filter / Billet FCR transition ring. Modified rear spring package / rear revalve.

    next round of mods: 8/33 cam, Hi Flow water pump and 540 cylinder / wossner piston waiting to go in, fastway 3 steering damper ala KTM setup, custom header using KTM XC header as a starting piece, light flywheel setup.
    gotta have something to modify this year !

    LTR 450
    , My Wife Nicola's ride & my back up mxer - 493 BB / JE piston / special order Yoshi motard cams / custom fueling map / tcs LT ZPS front end setup, TCS rear ZPS revalve / ims tank / TB exhaust / power commander / proflo - K&N / 14 deg flexx's / race nerfs / armadillo bumper/ Denton damper, next round of mods: ported head and carillo rod...... the clark kent of the ATV trio ! 210 hrs and still going strong ! the BB kit transformed this machine, it hauls the mail now !!!!

    A garage full of wheels and tires for them all........ speedway / sand / MX / cross country, over 30 at last count all on rims ready to rock

    NZ # 1 Vets champ 2013
    NZ Vets (40+) North Island MX champ 08, 09, 12 & 13
    NZ TT champ Vets (40+) 06, 08, 09,12 & 13
    Auckland ATV Club Sprint Series Champ 04, 05, 06, 07, 08, 09, 11, 12 & 13
    hope to get a good season in for the remainder of 2014.......finding time to ride being the biggest problem !

  4. Remove Advertisements
    KTMATVHQ.com
    Advertisements
     

  5. #24
    Senior Member KTMATVHQ Guru
    Join Date
    Jun 2010
    Posts
    1,020
    what is this 554 engine? is it stroked or bored?
    2009 KTM 525XC #841

    Brad Mulvey Mod SX arms, SX axle, SX brake lines, KTM Big Nerfs, KTM Hood, Motoworks SR4 slip on, akro manifold, ESR heat gauge, 42mm bored carb, hrc kit, YFZ float bowl w/ adjustable leak jet, FCI "like" Intake w/ RC-5000 K&N filter.

  6. #25
    Senior Member KTMATVHQ Member
    Join Date
    Feb 2009
    Posts
    329
    I would be interested to see what numbers you get on his dyno.

  7. #26
    Senior Member KTMATVHQ Member
    Join Date
    Feb 2009
    Posts
    329
    Quote Originally Posted by rumlesj1 View Post
    what is this 554 engine? is it stroked or bored?
    99mm bore stock stroke but the crank is around 1000g lighter

  8. #27
    Senior Member KTMATVHQ Guru
    Join Date
    Jan 2011
    Location
    Bella vista ,arkansas
    Posts
    1,420
    Quote Originally Posted by rumlesj1 View Post
    what is this 554 engine? is it stroked or bored?
    For some reason it's called a 570 motor but actual cc is 554. Just like the 525 is actually a 510cc
    637
    8/10 cam or stage 6 depends on who you but it from
    plus 1 head
    slingshot lock up
    fci intake, 43.5 carb
    plus 8 swingarm
    ktmbill exhaust
    JJ&a play axle
    high flow water pump
    direct drive spindle mounts (thanks nmachine)


    http://s1107.photobucket.com/albums/...rrent=drag.jpg

  9. #28
    Senior Member KTMATVHQ Guru
    Join Date
    May 2009
    Location
    Western WA
    Posts
    1,102
    Ill start looking at getting an appointment to do a little tuning down there. In the mean time I have a little issue I need to talk to you about. Ill give you a call early next week
    99mm thumper cylinder 15:1 comp, Crankworks billet stroker, Custom Carrillo short rod, Racers edge +4ti head, 48mm hsr carb, Shortened and stretched trx fci intake, Custom programmed vortex

    296lbs ready to ride. This might be the fastest ktm duner in the world

  10. #29
    Senior Member KTMATVHQ Member
    Join Date
    Feb 2009
    Posts
    329
    Call me anytime

  11. #30
    Senior Member KTMATVHQ Member
    Join Date
    Feb 2009
    Posts
    329
    It was nammed a 570 by the previous owners of Thumper Racing. The idea from what they said was to sperate it from the factory 540 kit which we know is a 532 and the 560smr. Since the kit had already been around for several years I didn't want to confuse anyone by renaming it.

  12. #31
    Senior Member KTMATVHQ Guru
    Join Date
    May 2009
    Location
    Western WA
    Posts
    1,102
    It makes sense if you look at how ktm called the 510cc motor a 525. They basically added 15cc to the real displacement. When you add 15cc to the 99mm bore you get damn close to 570cc.
    99mm thumper cylinder 15:1 comp, Crankworks billet stroker, Custom Carrillo short rod, Racers edge +4ti head, 48mm hsr carb, Shortened and stretched trx fci intake, Custom programmed vortex

    296lbs ready to ride. This might be the fastest ktm duner in the world

  13. #32
    Senior Member KTMATVHQ Guru
    Join Date
    Jan 2011
    Location
    Bella vista ,arkansas
    Posts
    1,420
    Wish I could add 15 hp to my junker
    637
    8/10 cam or stage 6 depends on who you but it from
    plus 1 head
    slingshot lock up
    fci intake, 43.5 carb
    plus 8 swingarm
    ktmbill exhaust
    JJ&a play axle
    high flow water pump
    direct drive spindle mounts (thanks nmachine)


    http://s1107.photobucket.com/albums/...rrent=drag.jpg

  14. #33
    Senior Member KTMATVHQ Member
    Join Date
    Jan 2011
    Location
    Sandusky, Ohio
    Posts
    433
    ^ same here! I have ktm bills full exhaust, ranchero carb and an fci intake on my 525xc, about what does that put me at?


 
Page 2 of 2 FirstFirst 1 2

Sponsored Links

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  

Search tags for this page

all4racing polaris exhaust

,
ktm 525 custom race motors
,
ktm 554 xc
,
ktm led performance
,
led atv performance
,

outlaw 525 dyno numbers

,
outlaw 525 top speed
,
polaris 525 dyno
,
realworlddynonumbersformercury525motor
,

www.ktm girls fuling.com

Click on a term to search for related topics.