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Author Topic: 600 peerless  (Read 4776 times)

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Offline jamie_guy3

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600 peerless
« on: May 18, 2006, 08:35:22 pm »
i got 3 tranny 600 got one tractor build whit a set up chain and tranny building another one only belt drive winch tire do you hi sould put on 16 or 18 inch and the pulleys would be what its going to be a bolen husky i dont no for the motor techumse 10hp or briggs 11hp thanks denis
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Offline Squidd

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« Reply #1 on: May 18, 2006, 09:22:40 pm »
Compared to the 18" tires...the 16" will give you a lower center of gravity and more stable platform to race on...

That and the smaller diameter will be easier to spin up quickly...

If you have a "fixed" gear ratio class (where everyone runs the same) the taller 18" tires will give you more speed...
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Offline jamie_guy3

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« Reply #2 on: May 18, 2006, 09:34:52 pm »
what would be the pulleys ratio on motor and tranny thanks squidd you help me alot my other tractor is in the paint boot at my brother sand a picture wane is all ready
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Offline Squidd

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« Reply #3 on: May 18, 2006, 10:03:57 pm »
The 600 has a 9:1 final in third...you want to spin that up to the "magic" 6.5:1 ratio we did with the gear box...

To do that you need to overdrive the Transaxle by about 40% to get there (38% actually)...

You can get real close with a 7" and 5" if you run straight from engine to transaxle or... if you lower chassis over T-axle and run a jackshaft you have numerous options to get there...
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Offline jamie_guy3

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« Reply #4 on: May 18, 2006, 10:10:22 pm »
i got to lored the chassie i will put a mtd spindle it will be 3inch pulleys on bot side
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Offline jamie_guy3

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« Reply #5 on: June 04, 2006, 07:18:08 pm »
white a 7 on motor and 5 on tranny i want to lower the tractor what is the size of pulleys shood i use on the spindle in the midle of tractor thanks
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Offline Squidd

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« Reply #6 on: June 04, 2006, 08:45:22 pm »
"IF" you are using the 7" on motor and 5" on tranny as final ratio..the both pulleys on the jackshaft should be same size...any size as long as they are the same...

Now you dont want to go to far out of the useable range here so don't use tiny (2") or huge (10") pulleys..use something in the 4.5" or 5" range...
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Offline jamie_guy3

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« Reply #7 on: June 04, 2006, 09:17:06 pm »
thanks again squidd if you got more secret for motor email me thanks denis
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Offline Squidd

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« Reply #8 on: June 04, 2006, 10:30:38 pm »
Yeah but...Then it wouldn't be "secret" anymower... :twisted:


 :wink:  :lol:
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Offline jamie_guy3

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« Reply #9 on: June 05, 2006, 06:12:51 am »
i no that but i am from canada new brunswick wont be racing white you  thanks
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Offline Squidd

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« Reply #10 on: June 05, 2006, 06:38:12 am »
Well I can tell you a secret, but it's not really a secret....

I've built a couple motors using pretty much all the tricks we listed in your other posts..one blew up the other runs pretty strong...

But if you really want a fast screamer..you may be better off (and money ahead) buying one from a professional motor builder...after 60-80-a couple hundred...they seem to have worked the bugs out and been able to "tweak" those last couple of elusive hp out...

You say you welded up your cam...cool...but do you have a cam grinder...? do you know what your lift and duration are... valve overlap and timing..?is it as big and bad as can possibly be fit in your block...? are there parts "in" the block that can be ground to make it even bigger...?

And machine work... can you bore and sleeve and make it bigger.. How about switching valves, cutting in a new seat and adding a 1/4" to your intake valve...??Balancing and lightning your crank...maybe increasing stroke at same time...??

Lot of this stuff is not a "secret"... just beyond the capabilities of most backyard mechanics...
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Offline jamie_guy3

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« Reply #11 on: June 05, 2006, 11:26:56 pm »
i just got in the mail today my piston from a 17hp ohv going to bring it to a machine shop to bored it do you need a new sleeve put in thanks
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