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Old 06-25-2009, 10:49 PM   #1
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Default what do you think??

I am putting a mach .21 in my slayer and was wondering if i could use the stock losi 8ight three shoe clutch/flywheel with it (cheap)? Are clutches/flywheels a one size fits all deal? Also is the .21 considered a big block, because I was planning on running a dyn 053 BB pipe on it? Im am just getting into nitro. Sorry if these are obvious questions.
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Old 06-26-2009, 04:23 AM   #2
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Originally Posted by snowboard094 View Post
I am putting a mach .21 in my slayer and was wondering if i could use the stock losi 8ight three shoe clutch/flywheel with it (cheap)? Are clutches/flywheels a one size fits all deal? Also is the .21 considered a big block, because I was planning on running a dyn 053 BB pipe on it? Im am just getting into nitro. Sorry if these are obvious questions.
I'm pretty sure the Losi 8ight clutch is a 4-shoe. If it comes with the engine, I see no problem with that... although I think the clutchbell may need to be changed. Not sure on the Slayer. Yes, virtually all .21s are big-blocks, and yes, that one is. The Dynamite 053 pipe has been great on everything I've had it on: Werks B7 Pro, OS VSPEC, RB C6BB... should be ok on that engine.
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Old 06-26-2009, 10:52 AM   #3
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I'm pretty sure the Losi 8ight clutch is a 4-shoe. If it comes with the engine, I see no problem with that... although I think the clutchbell may need to be changed. Not sure on the Slayer. Yes, virtually all .21s are big-blocks, and yes, that one is. The Dynamite 053 pipe has been great on everything I've had it on: Werks B7 Pro, OS VSPEC, RB C6BB... should be ok on that engine.
alright thanks alot for the help. No the mach .21 doesn't come with the 8ight clutch, i was going to buy the clutch/flywheel separately. Since the package comes with a 13t bell i will get a 16t bell.
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Old 06-26-2009, 01:03 PM   #4
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alright thanks alot for the help. No the mach .21 doesn't come with the 8ight clutch, i was going to buy the clutch/flywheel separately. Since the package comes with a 13t bell i will get a 16t bell.
If you don't already have the clutch I would buy the following:

http://www.amainhobbies.com/product_.../XRAY-Flywheel

http://www.amainhobbies.com/product_...lywheel-Collar

http://www.amainhobbies.com/product_...-Engine-Nut-SG

http://www.amainhobbies.com/product_...lutch-Shoe-Set

http://www.amainhobbies.com/product_...er-Clutch-Bell (You said 16t)

http://www.amainhobbies.com/product_...utch-Springs-3

That is EXACTLY the clutch setup I run on my truggy, except with a 13t bell.

And get a 10 pack or so of good bearings, like IronMan or Avid... and shims... Ofna sells shim "set" that works pretty good, and you get a lot of options without buying a whole bunch of separate packages of stuff.
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Unsponsored, but I use/recommend: XRay XB9, Alpha A852, Dynamite 053, Airtronics M11, Hitec 5955TG & 7955TG, ABEC 35 clutch and chassis bearings, PTRCRacing shock and diff fluids, Ready Rollers ceramic engine bearings. ** Team Terribles Region 9 coordinator. ** JOIN TEAM TERRIBLES! All racers welcome! PM me for details.
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Old 06-26-2009, 01:07 PM   #5
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If you don't already have the clutch I would buy the following:

http://www.amainhobbies.com/product_.../XRAY-Flywheel

http://www.amainhobbies.com/product_...lywheel-Collar

http://www.amainhobbies.com/product_...-Engine-Nut-SG

http://www.amainhobbies.com/product_...lutch-Shoe-Set

http://www.amainhobbies.com/product_...er-Clutch-Bell (You said 16t)

http://www.amainhobbies.com/product_...utch-Springs-3

That is EXACTLY the clutch setup I run on my truggy, except with a 13t bell.

And get a 10 pack or so of good bearings, like IronMan or Avid... and shims... Ofna sells shim "set" that works pretty good, and you get a lot of options without buying a whole bunch of separate packages of stuff.
(And yes, that is right... Xray flyweel and collet, Mugen nut, Dynamite shoes, Racers Edge clutchbell, and Kyosho springs) Sometimes mixing and matching is not good... this fits together properly (no strange angles on the springs to make your shoes pop loose, everything matches up right.) I put 1 or 2 shims behind the flywheel, (depending on clearance to front of crankcase... motors vary a little) none or 1 behind the inner bearing, depending on clearance between the clutch shoes, bellhousing, and pins on the flywheel, and whatever is needed for the rest of it.

You need just a HAIR of endplay in the clutchbell... if it won't move in and out at all, it will burn up bearings in a heartbeat... but it can't be sloppy.

Good bearings will last quite a while... but count on changing them at least every gallon... every 1/2 gallon or less is even a better idea.
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Old 06-26-2009, 01:15 PM   #6
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I forgot one more thing: Losi clutchbells tend to be longer than any other... Mugen, Xray, and Ofna/Jammin about the same, and Kyosho shorter. (meaning how far the pinion gear is from the flywheel.) I don't know on the Traxxas stuff... but it is probably in the middle range. I suggest checking with some guys who have Slayers to see.
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Old 06-26-2009, 01:32 PM   #7
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SO i take it this setup is much better then the stock losi clutch kit? What would be the advantages be with this setup over the losi?
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Old 06-26-2009, 10:19 PM   #8
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bump
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Old 06-27-2009, 12:18 PM   #9
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anyone else have experience with the stock losi 8ight clutch or this setup above?
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Old 06-27-2009, 12:28 PM   #10
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losi clutch is a good clutch but I run it in the 8ight 2.0. Never had experience with the other set up. Your gonna have to find one to line up properly in the slayer. Will the stock clutch not work for you ?
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Old 06-27-2009, 01:07 PM   #11
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losi clutch is a good clutch but I run it in the 8ight 2.0. Never had experience with the other set up. Your gonna have to find one to line up properly in the slayer. Will the stock clutch not work for you ?
Well i might be wrong about this, but wont the stock traxxas clutch get eaten up fast buy the power of the mach .21?
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Old 06-27-2009, 01:46 PM   #12
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I would use the stock flywheel if possible and try to find some after market shoes that will hold up better for you. What size engine came on the slayer anyway ?
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Old 06-28-2009, 11:13 AM   #13
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I would use the stock flywheel if possible and try to find some after market shoes that will hold up better for you. What size engine came on the slayer anyway ?
it comes stock with the traxxas 3.3.
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