SuzukiSavage.com - Interesting Side Effects

BurnPgh Serious Thumper Offline SuzukiSavage.com Rocks! Posts: 1732	Re: Interesting Side Effects Reply #15 - 09/27/08 at 22:01:00 To find out how accurate your tach is run the bike in 3rd. From what I understand its very near 100rpm to 1mph in 3rd (ie at 65mph you'll be at about 6500rpm).
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Digger

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Re: Interesting Side Effects
Reply #16 - 11/29/08 at 21:19:57

EssForty wrote on 09/26/08 at 15:37:58:

What is the gear ratio for the top gear on the 4 speed and 5 speed transmission? I've searched and I can't find it. Also, has anyone calculated what the rpms should be for a Savage at various speeds and gears assuming stock tires and proper tire inflation?

I'm curious how accurate my tach is. It is very repeatable but I am not sure if it is accurate for a 5-speed.

Hi Ess,

A while ago, someone posted a graph showing engine RPM vs. speed.

Based on that graph, here are the approximate (+/- 100) engine RPMs corresponding to a speed of 25 mph:

1st gear: 4500 RPM
2nd gear: 2950 RPM
3rd gear: 2125 RPM
4th gear: 1800 RPM
5th gear: 1650 RPM

If someone has that graph I spoke of, maybe they'd be kind enough to post it!

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Digger
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Rockin_John Serious Thumper Alliance Member Offline Posts: 1562 +36° 10' , -95° 48' Gender:	Re: Interesting Side Effects Reply #17 - 11/30/08 at 01:01:23 This might be the graph you are referring to Digger: Anyways, it is a graph for a stock Savage 5-speed showing kph @ given rpm for any gear. If memory serves me right, those of us wanting to know what it translates into in mph need to multiply the kph by .62
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Re: Interesting Side Effects
Reply #18 - 11/30/08 at 08:40:42

EssForty wrote on 09/26/08 at 15:37:58:

What is the gear ratio for the top gear on the 4 speed and 5 speed transmission? I've searched and I can't find it. Also, has anyone calculated what the rpms should be for a Savage at various speeds and gears assuming stock tires and proper tire inflation?

I'm curious how accurate my tach is. It is very repeatable but I am not sure if it is accurate for a 5-speed.

Don't remember where I got the info, but:

Primary Reduction: 1:1.81 (crank to transmission)

1st -- 1:2.333
2nd -- 1:1.578
3rd -- 1:1.142
4th -- 1:0.956
5th -- 1:0.884

Final Drive: 1:2.96

rear tire diam 24.4" (This will vary with size and brand of tire)

The math:

4500 rpm engine speed / 1.81 primary reduction =
2486 rpm into transmission / gear (fifth = 0.884) =
2812 rpm front sprocket / 2.96 final drive =
950 rpm wheel spin * 24.4" (tire diameter) * pi (3.14.16) =
72863 inches/minute ground speed * 60 min/hour / 63360 inch/mile =
69 mph

Get a stopwatch and a measured mile. 4500 rpm through the mile should take just a hair over 52 seconds.

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eanon Full Member Offline Thump-Thump-Thu mp Posts: 219 Austin, Texas Gender:	Re: Interesting Side Effects Reply #19 - 11/30/08 at 13:02:28 Common' man. Surely you can brake it down more than that!
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sluggo Serious Thumper ModSquad Offline big singles lead, twins follow the pack Posts: 4744 moses lake washington Gender:	Re: Interesting Side Effects Reply #20 - 12/03/08 at 04:13:03 i wonder how fast the scumbag in fl. would start calling theM Magic filters if we started called them that here?
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