YAMMIEGOD3:16
Active member
23-39 @ 107 mphhanker37 said:
22-37 @ 108 mph !! 3:16 (yammie tony)
ok thank you!!!do you guys think the stock gearing in a 98 srx is to high?23-37,for most applications.i read that on here.also does it adversly affect the fuel milage to gear down?
YAMMIEGOD3:16
Active member
KEEP IN MIND EVERYONE THESE NUMBERS ARE PERFECT WORLD MPH. ESPECIALLY YAMAHA. THEY HAVE GEARED THEIR SLEDS FOR THE MOON SINSE THE 440 SRX DAYS. IT ALL DEPENDS ON WHAT KIND OF RIDING YOU DO. ALSO KEEP IN MIND GEAR DOWN OR INCREASE GEAR RATIO MEANS BETTER ACCELRATION, BUT LESS TOP SPEED. HAVE TO FIND SWEET SPOT. 3:16 (yammie tony)
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ok thanks again yamigod!!i think ill go with stock 01-02 gearing thanks!
Good catch Ding, you caught the rpm issue, and overdrive factor. Anytime you raise the rpm of the engine you raise the mph of the gear set, so a piped viper for example if engine rpm is raised a 1000rpm will be geared 10-11% higher with the same gear set of a lower rpm srx.
the driver size is usually calculated in circumference: (sprocket circumferance=SC)
8tooth=17.64
9 tooth=22.68
10 tooth=25.20
formula: RPM divided by (SC divided by 12 x 60 divided by 5280= your mph @ a 1:1 clutch ratio
the driver size is usually calculated in circumference: (sprocket circumferance=SC)
8tooth=17.64
9 tooth=22.68
10 tooth=25.20
formula: RPM divided by (SC divided by 12 x 60 divided by 5280= your mph @ a 1:1 clutch ratio
What chain with 22-37 gearing Tony?
venture700
New member
what is 22-39 with 8 tooth sprockets and 18-39 with 8 tooth's?
YAMMIEGOD3:16
Active member
68. 3:16 (yammie tony)98700 said:
YAMMIEGOD3:16 said:
Thanks man!
Nik
YAMMIEGOD3:16
Active member
22-39 IS A 2.00 RATIO. 18-39 IS A 2.44 RATIO. THIS SLED SET-UP FOR MOUTAIN SNOW ? 3:16 (yammie tony)venture700 said:
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Tony, Could I use a 70link? I have 23-37 now and I'm planning to go down to 22-37.
YAMMIEGOD3:16
Active member
ACTUALLY BUD 23-37 CALLS FOR A 68 ALSO. PROBLEY BE FINE, JUST KEEP EYE ON BEND WHERE TENSIONER IS. I ALWAYS LIKE LEAST BEND AS POSSIBLE. 3:16 (yammie tony)
Venture700, If you want to calculate 8 tooth drivers you simply multiply x 1.13 on your 9 tooth ratio.
your 18/39 would be 2.44 ratio with 8 tooth drivers.
your 18/39 would be 2.44 ratio with 8 tooth drivers.
YAMMIEGOD3:16 said:
In the Tech pages, Under stock Yamaha specs it says my 98 has 23-37 with 70 link chain. That's where I got the info from. Either way 68 here we come.
YAMMIEGOD3:16
Active member
I,LL DOUBLE CHECK FOR YA IN MY 98 TECH MANUAL. AGAIN YOU PROBLEY WILL BE OK, ITS ALL IN THE HOW THE TENSIONER BRINGS SLACK UP. I NEVER LIKE BIG CURVE SO I ALWAYS USED CHAIN RATIO CALLED FOR. 3:16 (yammie tony)
venture700 said:
18/39= 74MPH in 1:1
22/39= 90MPH in 1:1
YAMMIEGOD3:16 said:
Ok thanks, LMK what it says in the 98 manual. If it already has a 68 link I wont go out and buy one.
YAMMIEGOD3:16
Active member
1998 YAMAHA TECHNICAL UPDATE MANUAL.
SRX MODELS.
23-37 1.61 RATIO / 68L
22-37 1.68 RATIO / 68L !! 3:16 (yammie tony)
SRX MODELS.
23-37 1.61 RATIO / 68L
22-37 1.68 RATIO / 68L !! 3:16 (yammie tony)
YAMMIEGOD3:16 said:
Perfect, Thanks for the help Tony!