Welcome to NESR! Most features of this site require registration, including replying to threads, sending private messages, starting new threads, and uploading files. Click here to register.

Page 1 of 2 12 LastLast
Results 1 to 25 of 33

771 Racing - Brain Download

  1. #1
    Lifer Kurlon's Avatar
    Join Date
    Jun 2007
    Location
    Waterboro ME
    Age
    41
    Posts
    12,211

    771 Racing - Brain Download


    Brain Dump - November 2018 OutOfSpec.COM

    771 Racing - Brain Download-maweird-jpg

    Yup, I'm going to do the odd thing, all those who are surprised, raise your hands. Anyone, anyone? To answer the obvious question, no the 300XC-W I sold would not be what I would have started with. I'll cover that detail later.

    2 Not allowed!
    Last edited by Kurlon; 11-18-18 at 09:33 PM.
    771 Racing -=- FaceBook
    Backed by Heroic Racing Apparel
    A-ko - 1992 FZR400RR SP / Mistake - 1992 WR250ZD / Facade - 2003 YZF-R6 / 2000 LS650P

  2. #2
    Senior Member MUZ720's Avatar
    Join Date
    Dec 2015
    Posts
    525

    Re: 771 Racing - Brain Download

    Interesting read.. Wish I had the balls the share my thoughts on line like that! I am already spending money I don't have on bikes!!
    The FZR is going to be your bike.. Its legal for USCRA ( they race at Loudon and Canaan) I believe and Ahrma has a new light weight class for it. (NJ is the closest track) The Wera broad has a project bike up for sale! You might want to check that out.. The Kramer would be ideal but cost is the killer on that one... I get your feelings on the SV... Good luck!

    1 Not allowed!

  3. #3
    Lifer Kurlon's Avatar
    Join Date
    Jun 2007
    Location
    Waterboro ME
    Age
    41
    Posts
    12,211

    Re: 771 Racing - Brain Download

    I like most of the people in the USCRA, but damn if there isn't a grumpy old clique that thinks anything other than 50s Brittish iron is junk and shouldn't be in the club... Plus it's a LOT of money for not much track time. Which is too bad 'cause like I said, I like everyone else in that group. I'll have to look at AHRMA's rules, last I looked I'm way over the displacement limit but they might have tweaked things.

    On the WERA project bike, there's been a couple for sale recently but they are US 1WGs, different animal from my 3TJ, if I'm doing a full chassis change over I'm going to call it a day on the bike.

    0 Not allowed!
    771 Racing -=- FaceBook
    Backed by Heroic Racing Apparel
    A-ko - 1992 FZR400RR SP / Mistake - 1992 WR250ZD / Facade - 2003 YZF-R6 / 2000 LS650P

  4. #4
    Senior Member MUZ720's Avatar
    Join Date
    Dec 2015
    Posts
    525

    Re: 771 Racing - Brain Download

    You could always destroke your 600...and make it an R5 the Ahrma class is new LW https://www.ahrma.org/rules/next-gen...rules-writeup/

    0 Not allowed!

  5. #5
    Lifer Kurlon's Avatar
    Join Date
    Jun 2007
    Location
    Waterboro ME
    Age
    41
    Posts
    12,211

    Re: 771 Racing - Brain Download

    A destroked piggie 600 is still a piggie, just slower. The AHRMA rules match what I remember, where I run afoul is in the engine dept, way past 2mm overbore, and I'd be hard pressed to argue that my cylinder / head / cam / etch changes don't offer any performance increases. I run into similar concerns with the USCRA, because I'm using some later parts my machine doesn't necessarily fit the 'sprit' of the class.

    0 Not allowed!
    771 Racing -=- FaceBook
    Backed by Heroic Racing Apparel
    A-ko - 1992 FZR400RR SP / Mistake - 1992 WR250ZD / Facade - 2003 YZF-R6 / 2000 LS650P

  6. #6
    Lifer Pittenger5's Avatar
    Join Date
    Oct 2006
    Location
    Austin
    Age
    37
    Posts
    15,209

    Re: 771 Racing - Brain Download

    You have issues

    0 Not allowed!
    Zip Tie Alley #505

    Quote Originally Posted by Pookie View Post
    My favorite was you going through T2 with your eyes closed.

  7. #7
    Lifer Kurlon's Avatar
    Join Date
    Jun 2007
    Location
    Waterboro ME
    Age
    41
    Posts
    12,211

    Re: 771 Racing - Brain Download

    Quote Originally Posted by Pittenger5 View Post
    You have issues
    We're here to discuss new things, not well established facts.

    0 Not allowed!
    771 Racing -=- FaceBook
    Backed by Heroic Racing Apparel
    A-ko - 1992 FZR400RR SP / Mistake - 1992 WR250ZD / Facade - 2003 YZF-R6 / 2000 LS650P

  8. #8
    Lifer loudbeard's Avatar
    Join Date
    Jun 2013
    Location
    Rehoboth MA
    Age
    35
    Posts
    3,275

    Re: 771 Racing - Brain Download

    One platform in particular that may be worth reading into a bit more, the 2008-2011 KTM Duke 690. Doesn't quite meet your power and weight requirements (62 HP/354 wet) but it's pretty damn close. That said, it's a KTM 690, you can easily extract more power from that mill. The 354 is curb weight, can also shed a substantial amount just getting it in to race trim. Biggest reason to look at the 2008-2011 is factory kit; they come with Brembo calipers, 48 mm forks, and forged Marchesini wheels. There's a couple on CycleTrader now around the $5k mark. I imagine this is an exceptionally fun bike to race. In my head you're at 75% of what a Kramer can do for 30% of the cost.

    1 Not allowed!
    I went to MMI I know what Im doing here chief

  9. #9
    Senior Member pasta-rocket's Avatar
    Join Date
    Oct 2006
    Location
    Auburn NH
    Age
    44
    Posts
    724

    Re: 771 Racing - Brain Download

    nsf250?

    0 Not allowed!

  10. #10
    Lifer Pittenger5's Avatar
    Join Date
    Oct 2006
    Location
    Austin
    Age
    37
    Posts
    15,209

    Re: 771 Racing - Brain Download

    Ill sell you my sumo cheap, Im sure you can figure out a way to shoehorn a busa motor in there.

    0 Not allowed!
    Zip Tie Alley #505

    Quote Originally Posted by Pookie View Post
    My favorite was you going through T2 with your eyes closed.

  11. #11
    Get Weird! maxim_X's Avatar
    Join Date
    Jul 2010
    Location
    Fairhaven, Ma
    Age
    32
    Posts
    2,760

    Re: 771 Racing - Brain Download


    0 Not allowed!
    LRRS EX 151 AMSOIL

    JCBernier -- You-tube

  12. #12
    Lifer Kurlon's Avatar
    Join Date
    Jun 2007
    Location
    Waterboro ME
    Age
    41
    Posts
    12,211

    Re: 771 Racing - Brain Download

    So, a few alternate suggestions have been tossed out, here's the quick Kurlon brain dump on them:

    2008-2011 Duke 690:
    - OK cost to get in to, 2016 Husky 701 SM can be found for a touch more though?
    - Not many setup for road racing though so it'll be a full build, available knowledge on setup potentially lacking.
    - Not competitive out of the crate in any class.
    TLDR - If the Kramer didn't exist, I could see UL potential with heavy lifting and would have been game to do so but new options make it less appealing to me.

    NSF 250:
    - Only competitive in CCS Moto 3, LRRS allows any displacement which means it's outgunned there too.
    - I don't like being restricted to tiny Moto 3 tires if going for a big HP build.
    - Never seen one cheap, but they come with good kit all around out of the crate.
    - Crash well, engineered and built for the task.
    TLDR - Actually thought about putting a 450 into an RS125 chassis back in the day, would like to try a proper RS125 some day.

    Pedo Bear RM450:
    - There isn't enough hand sanitizer in the world...
    - 'Busa conversion does make me curious...

    KTM Duke 790 - The latest new LW hotness:
    - Half the price of a Kramer, BARGAIN! Needs all the suspension work... bah.
    - 100hp, 370lbs dry! Wait, my R6 is 100 to 110hp, 390lbs dry... don't want no heavy bike. Waiting to see what they actually trim down to in supersport config. Should be a LW weapon.
    - LW only, not UL legal so not a good pairing with the FZR.
    TLDR - Like the Kramer, I can't afford one, not exactly a big used market out there to score one cheap. It doesn't really get my gears going either?

    0 Not allowed!
    771 Racing -=- FaceBook
    Backed by Heroic Racing Apparel
    A-ko - 1992 FZR400RR SP / Mistake - 1992 WR250ZD / Facade - 2003 YZF-R6 / 2000 LS650P

  13. #13
    Backwoods lobster boy number9's Avatar
    Join Date
    Aug 2005
    Location
    Hanover, NH
    Posts
    3,563

    Re: 771 Racing - Brain Download

    If you sprung the money for a Kramer, what would the pro/con bullets look like?

    0 Not allowed!
    '08 Ducati HyperMotard 1100S, '14 Subaru XV Crosstrek

  14. #14
    Lifer Kurlon's Avatar
    Join Date
    Jun 2007
    Location
    Waterboro ME
    Age
    41
    Posts
    12,211

    Re: 771 Racing - Brain Download

    My primary con with them at the moment, based on the extremely limited data set of observing two at LRRS is I'm not super impressed with how they survive crashes? Other than that I like the package on paper, and they demonstrated their competitiveness in lots of classes this year. They're a setup that absolutely gets my gears going. I am curious how the motors are going to hold up over time in their hopped up state of tune.

    0 Not allowed!
    771 Racing -=- FaceBook
    Backed by Heroic Racing Apparel
    A-ko - 1992 FZR400RR SP / Mistake - 1992 WR250ZD / Facade - 2003 YZF-R6 / 2000 LS650P

  15. #15
    Lifer Tekime's Avatar
    Join Date
    Mar 2016
    Location
    Falmouth, ME
    Age
    39
    Posts
    1,145

    Re: 771 Racing - Brain Download

    That BRC kit looks bananas. Seems like a bold choice. Definitely the kind of thing I can understand. Just playing on that bike would be endless fun though I'm sure. What are those kits going for, like $5-6k + bike cost?

    0 Not allowed!
    05GSXR75005SV65090DR350

  16. #16
    Your Father csmutty's Avatar
    Join Date
    Sep 2008
    Location
    Pomfret Center, CT
    Age
    27
    Posts
    10,013

    Re: 771 Racing - Brain Download

    I really like this idea.

    I'm here to support you Josh.

    1 Not allowed!
    -Christian LRRS/CCS #316 ECK Racing GMD Computrack Boston | Pine Motorparts/PBE Specialists | Woodcraft | Street & Competition | OnTrack Media

    2011 Pit Bike Race CHAMPION!

  17. #17
    Lifer Kurlon's Avatar
    Join Date
    Jun 2007
    Location
    Waterboro ME
    Age
    41
    Posts
    12,211

    Re: 771 Racing - Brain Download

    Quote Originally Posted by Tekime View Post
    That BRC kit looks bananas. Seems like a bold choice. Definitely the kind of thing I can understand. Just playing on that bike would be endless fun though I'm sure. What are those kits going for, like $5-6k + bike cost?
    That's about right, I've got a touch more research to do and will start the search for the donor bike hopefully soon.

    1 Not allowed!
    771 Racing -=- FaceBook
    Backed by Heroic Racing Apparel
    A-ko - 1992 FZR400RR SP / Mistake - 1992 WR250ZD / Facade - 2003 YZF-R6 / 2000 LS650P

  18. #18
    ^ It's my bike and my car tls25rs's Avatar
    Join Date
    Jun 2004
    Location
    Haverhill, MA
    Age
    48
    Posts
    3,096

    Re: 771 Racing - Brain Download

    Quote Originally Posted by Kurlon View Post
    That's about right, I've got a touch more research to do and will start the search for the donor bike hopefully soon.
    Wanna build two?

    0 Not allowed!

  19. #19
    Soul Rider Paul_E_D's Avatar
    Join Date
    Sep 2003
    Location
    western, MA
    Age
    48
    Posts
    13,292

    Re: 771 Racing - Brain Download

    Quote Originally Posted by tls25rs View Post
    Wanna build two?
    He should definitely build 2, for obvious reasons, though.

    0 Not allowed!
    Paul_E_D


  20. #20
    Lifer Kurlon's Avatar
    Join Date
    Jun 2007
    Location
    Waterboro ME
    Age
    41
    Posts
    12,211

    Re: 771 Racing - Brain Download

    Quote Originally Posted by tls25rs View Post
    Wanna build two?
    If I was assembling a pure kit, absolutely. In this case other than the motor, this is going to be a figure it out as I go mess so... if you're ok with it potentially taking two years, and some false starts, wrong purchases, etc?

    Current theory is 2012 or later 250/300 XC. 6 speed but not a wide ratio gearbox.

    1 Not allowed!
    Last edited by Kurlon; 11-25-18 at 03:28 PM.
    771 Racing -=- FaceBook
    Backed by Heroic Racing Apparel
    A-ko - 1992 FZR400RR SP / Mistake - 1992 WR250ZD / Facade - 2003 YZF-R6 / 2000 LS650P

  21. #21
    ^ It's my bike and my car tls25rs's Avatar
    Join Date
    Jun 2004
    Location
    Haverhill, MA
    Age
    48
    Posts
    3,096

    Re: 771 Racing - Brain Download

    Understood. Guess I'll just watch from afar and live vicariously through your adventure in bike building.

    1 Not allowed!

  22. #22
    Lifer loudbeard's Avatar
    Join Date
    Jun 2013
    Location
    Rehoboth MA
    Age
    35
    Posts
    3,275

    Re: 771 Racing - Brain Download

    Has the BRC Kit been tested at all in a road racing application? Seems like they’ve been running them for MX and enduro.

    0 Not allowed!
    I went to MMI I know what Im doing here chief

  23. #23
    Lifer Kurlon's Avatar
    Join Date
    Jun 2007
    Location
    Waterboro ME
    Age
    41
    Posts
    12,211

    Re: 771 Racing - Brain Download

    Tested? No. But they have a lot of prior experience designing and producing highly effective kart motors and are confident in the 500 for this application.

    0 Not allowed!
    771 Racing -=- FaceBook
    Backed by Heroic Racing Apparel
    A-ko - 1992 FZR400RR SP / Mistake - 1992 WR250ZD / Facade - 2003 YZF-R6 / 2000 LS650P

  24. #24
    Lifer loudbeard's Avatar
    Join Date
    Jun 2013
    Location
    Rehoboth MA
    Age
    35
    Posts
    3,275

    Re: 771 Racing - Brain Download

    Ok cool. I was just wondering, this is a sweet project but when I did a bit more reading on I didn't see anything about an RR application. Same concerns with anything that's intended design is being a dirt bike engine, can it handle sustained WOT runs? I did see as well they have an extensive background in karting, so that bodes well. I can't imagine an application where one would spend more time at WOT than karting.

    I may have missed this part, but are you planning on doing a full GP-type conversion? Clip-ons, bodywork, rearsets, etc? Maybe just dip your toe in for a season as a motard, then if that's successful go full conversion?

    0 Not allowed!
    I went to MMI I know what Im doing here chief

  25. #25
    Lifer Kurlon's Avatar
    Join Date
    Jun 2007
    Location
    Waterboro ME
    Age
    41
    Posts
    12,211

    Re: 771 Racing - Brain Download

    I figure the hard part is going to be getting the geometry figured out for a full GP conversion, so thats what I'll do first, may actually run it with the stock motor in that form depending on timing/budget. I've got Mistake for regular motard duties, no need to reinvent that wheel.

    0 Not allowed!
    771 Racing -=- FaceBook
    Backed by Heroic Racing Apparel
    A-ko - 1992 FZR400RR SP / Mistake - 1992 WR250ZD / Facade - 2003 YZF-R6 / 2000 LS650P

Page 1 of 2 12 LastLast

Posting Permissions

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