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Indy 600 clutching

Brett

Member
Messages
72
Age
31
Location
PEI
Country
Canada
Years Snowmobiling
12
Snowmobile
2015 Indy SP LE 600
2005 XC SP 600
1996 XCR 440 SP
1989 Indy Sport 340
whats everyone running for clutching in there 600's
 

racerdave

Moderator
Staff member
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1,074
Age
65
Location
Will County, Illinois
Country
USA
Years Snowmobiling
since 1976
Snowmobile
AXYS Switcher 800,Indy600sp,XCSP600ves
I am debating trying a 48-44-F—-46-42-F
 

racerdave

Moderator
Staff member
Moderator
Messages
1,074
Age
65
Location
Will County, Illinois
Country
USA
Years Snowmobiling
since 1976
Snowmobile
AXYS Switcher 800,Indy600sp,XCSP600ves
No, but those angles are together on a dual Trac heel
 

Brett

Member
Messages
72
Age
31
Location
PEI
Country
Canada
Years Snowmobiling
12
Snowmobile
2015 Indy SP LE 600
2005 XC SP 600
1996 XCR 440 SP
1989 Indy Sport 340
Did ya get a chance to try that helix yet racerdave?
 

racerdave

Moderator
Staff member
Moderator
Messages
1,074
Age
65
Location
Will County, Illinois
Country
USA
Years Snowmobiling
since 1976
Snowmobile
AXYS Switcher 800,Indy600sp,XCSP600ves
No. I put 153 break in miles on last week in poor conditions but that is done at least.
 

Brett

Member
Messages
72
Age
31
Location
PEI
Country
Canada
Years Snowmobiling
12
Snowmobile
2015 Indy SP LE 600
2005 XC SP 600
1996 XCR 440 SP
1989 Indy Sport 340
Ok, I am currently running northstar performance setup that he recommended for racing. Still trying to get it dialed in.
 

Brett

Member
Messages
72
Age
31
Location
PEI
Country
Canada
Years Snowmobiling
12
Snowmobile
2015 Indy SP LE 600
2005 XC SP 600
1996 XCR 440 SP
1989 Indy Sport 340
Nothing new to report. Gotta change out secondary spring and re try setup when I get time. Right now I'm running gabes setup with 21-42 gears. I was 2 lengths behind my buddies assault last year with stock clutching. Here is this year.
 

Brock

Well-Known Member
Messages
2,044
Location
Ontario
Country
Canada
Years Snowmobiling
30+
Snowmobile
Polaris
That's a real low ratio Brett. Do u like it??
 

Brett

Member
Messages
72
Age
31
Location
PEI
Country
Canada
Years Snowmobiling
12
Snowmobile
2015 Indy SP LE 600
2005 XC SP 600
1996 XCR 440 SP
1989 Indy Sport 340
I like it so far. Any stock 600 I lined up so far can't beat it in 660'. Seems to pull hard right through. Here is a vid for comparison with a bad start on my part with the assault.

 

Brock

Well-Known Member
Messages
2,044
Location
Ontario
Country
Canada
Years Snowmobiling
30+
Snowmobile
Polaris
That's a good gear ratio for 660' and 800'. But not for top end. As long as u like it it's all that matters.
 

Brett

Member
Messages
72
Age
31
Location
PEI
Country
Canada
Years Snowmobiling
12
Snowmobile
2015 Indy SP LE 600
2005 XC SP 600
1996 XCR 440 SP
1989 Indy Sport 340
I only use that ratio for racing. I go back to a 22-41 usually for trail.
 

buddy330

New Member
Messages
21
Age
57
Location
maine
Country
USA
Years Snowmobiling
40
Snowmobile
2016 indy 600 sp, 2017 indy 600 sp es
how hard are you guys turning these motors? my '16 600 sp ran 8200 to 8250 with 64grams. I put 66 grams in and it still turns 8200+. I have a dyno sheet that shows these make best power at 7700 to 7800. any ideas?
 

racerdave

Moderator
Staff member
Moderator
Messages
1,074
Age
65
Location
Will County, Illinois
Country
USA
Years Snowmobiling
since 1976
Snowmobile
AXYS Switcher 800,Indy600sp,XCSP600ves
how hard are you guys turning these motors? my '16 600 sp ran 8200 to 8250 with 64grams. I put 66 grams in and it still turns 8200+. I have a dyno sheet that shows these make best power at 7700 to 7800. any ideas?
that dyno sheet is wrong or the dyno is off
 

Brett

Member
Messages
72
Age
31
Location
PEI
Country
Canada
Years Snowmobiling
12
Snowmobile
2015 Indy SP LE 600
2005 XC SP 600
1996 XCR 440 SP
1989 Indy Sport 340
I find mine to work best between 8150-8250 rpm. Anything after that they are falling off fast.
 

buddy330

New Member
Messages
21
Age
57
Location
maine
Country
USA
Years Snowmobiling
40
Snowmobile
2016 indy 600 sp, 2017 indy 600 sp es
Brett, have you tried loading it any heavier, maybe 68 grams, to run at 8000? I'd try it but we have zero snow here. DT has been close on the dyno numbers over the years, maybe they missed on this one.
 

Brett

Member
Messages
72
Age
31
Location
PEI
Country
Canada
Years Snowmobiling
12
Snowmobile
2015 Indy SP LE 600
2005 XC SP 600
1996 XCR 440 SP
1989 Indy Sport 340
68 are going to be way to heavy for a 600 imo. At 7800-7900 this motor is sluggish I find in my testing. I ran 10-66 with a team 140-330 primary spring with stock secondary setup and seen improvements. If memory serves me right it ran around 8100-8150. I currently have Qap2 loaded to 64g. But I ran them loaded to 65 last year with gabes clutching. Hope this helps.
 


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