GS1100EZ dyno results

[davel]

Davel, I went with 530 chain. It's a little more durable than the 520 as I had planned to turbo the Kat. It was an 8:1 1327. I think the biggest countershaft sprocket you can get in 530 is 18 teeth but there may be some custom made in 19 or maybe 20. The rear is the same pattern as the Bandit and old style 6 bolt GSXR, circa 1989-1998 1100. I looked at one time befpre realizing that IF I wanted to go fast, I would better of with a new top gear. So, when I am working again and have money, I'll have a new top gear made by robinson. Along with a new, longer, outputshaft. But I did find out that the smallest rear sprocket made for that cush and a 530 chain is 36 teeth. I would say get the 18 toother for the front and a 42 is an easy rear to get. Test it out. Then try a 39 and see how it works. Maybe you want to splurge for the 36 later? Unless you want to try a 19 or 20 for the countershaft. Oh, all the GSXR's/Busa's and other Suzuki's use the same splines. Except for the '08 and newer Busa and B-King. I can only say try it and see. Also, the bikes with the radial tires roll much more easily than the old bias plys. I am slowly converting my Kat to the new stuff.
Laters
G

All great info! Thanks!!!

So I'm coming to the conclusion that the easiest, cheapest, fastest way to get results would be to keep the rear 42T sprocket and chain and change to an 18T #630 CS sprocket. Do you know who might carry such an item?

or keep the 15T front and change to a 35T or 36T rear...Having trouble finding these in size #630

[saffa]

I run a gsx1100 on a 530 chain conversion.Front is a 17 tooth and rear is a 41 .

1st gear seems ok ..doesnt require much in the way of slippage to get going and overtaking doesnt usually require a down shift unless you wanna really fly by. A normal roll on in 5th usually suffices
Highway cruising sees 90 mph at about 5000 rpm or so.

ive converted all my bikes to this gearing now

[davel]

I run a gsx1100 on a 530 chain conversion.Front is a 17 tooth and rear is a 41 .

1st gear seems ok ..doesnt require much in the way of slippage to get going and overtaking doesnt usually require a down shift unless you wanna really fly by. A normal roll on in 5th usually suffices
Highway cruising sees 90 mph at about 5000 rpm or so.

ive converted all my bikes to this gearing now

Cool. Very helpful. That's what I'm after...

So here's a company http://www.sprocketspecialists.com/ that makes rear #630 sprockets (unfortunately they're aluminum) for the GS1100E ranging from 30T to 52T. I placed an order for a 35T rear and will keep the 15T stock CSS. This makes a ratio of 2.33. Just a bit taller than saffa's 2.41. I'll give it a shot and report back. If it works well I may convert to #530 with steel sprockets next season.

Thanks to all. Cheers!

[saffa]

i neglected to mention that im on 17in gsxr rims which may have a slight bearing on the gearing that im running . i did however run a gsx 750 on a 630 chain with the original 15 tooth up front and a custom 38 out back which gave a extra 500 rpm to play with and that was on std 19/18 inch skinnies

S..

[gmansyz]

Glad you found something as I didn't think anyone made a counster shaft sprocket with more than 16 teeth in the 630 size.
Laters
G

[madjack57754]

I hear you about the revs in high gear. At times it has me wishing for a 6th gear to drop down about 500rpm so the motor isn't quite as "Buzzy"

[davel]

So the 35T rear sprocket arrived. Got it mounted and it's everything I hoped for. It essetially adds another gear up top (the stock 5th gear ratio is now 4th). The new 1st gear is exactly half way between the stock 1st and 2nd gear ratios. The attached numbers should make sense out of all this. They're very accurate and were compiled from the www.gearingcommander.com site.

I've been riding around solo and 2 up for the past few days. The engine has plenty of torque off the line in first gear and will still pull top gear from under 2000RPM with 2up.

I think Suzuki chose the stock 15/42 final drive on these 16V engines to dominate 1/4 mile and roll-on contests in a effort to sell more bikes. A taller ratio is much more practical IMHO.