GS1000 streetfighter idea w/ picture

[Mike_H]

You had me worried when you mentioned "straightening the downpipe out." Thats askin for cracks, especially in Ti. Metal usually work hardens as you deform it. As it hardens, it gets more brittle. You would need to anneal it back "normallize" it, but I don't know how much your going to get by annealling since its an exhaust, and spends a lot of time at pretty high heat. I don't know that much about Ti, but the stainless Y-pipes and manifolds they put in cars are a b_tch to make. First you mandrel bend em, then they go through annealing, and depending on the system, they have more processing (welding, bending, hydroforming). The company I used to work for split about 10 percent of the tubes made in a day.

 

[80GS1000]

Which headers from other Suzuki bikes will fit on the GS1000? Really need a replacement for the V&H to move forward with this project.

Wonder if the early GSXR 1100 headers would fit on a GS1000 since I'm pretty sure the GSXR 1100 headers fit on a GS1100, and the GS1100 headers fit on a GS1000, so I hear. Biggest criteria is that it needs to be a 4 into 2 into 1 for ground clearance. FWIW, Vance and Hines and D&D make new complete systems for the GSXR 750 slabbies.

Something like this 89 GSXR 1100 header:

EDIT:

The spacing looks about right on this 89 stock header:

 

[Druro]

I have a mid-90's Yoshi header from an gix11, but as i see it from a quick mockup, it would need larder diameter primaries to fit the motor, and the flanges would need to be modified for wider bolt spacing.

 

[Mario Padilla]

Headers for your project?

Headers for your project?

On my 1983 GS750ES, I installed a GSX750F D&D exhaust system and it fits. This system is a 4-2-1 configuration. I don't know what the differences are between my GS750 16V motor and your motor but if there aren't any then this approach will give you the ground clearance your looking for. Some experts here that know both engines might be able to help.

 

[wharrah]

I hope its April Fools day...

I hope its April Fools day...

A bike that nice deserves better than to be cut up. Buy a GSXwhatever if that's what trips your trigger, Dude. Too many people wish they had bikes as nice as yours for you to go hacking on it...

That'd be a crime. yikes.

 

[80GS1000]

A bike that nice deserves better than to be cut up. Buy a GSXwhatever if that's what trips your trigger, Dude. Too many people wish they had bikes as nice as yours for you to go hacking on it...

That'd be a crime. yikes.

I don't understand this attitude. Please explain.

What's the matter with upgrading the suspension and hopping up the engine on what is really an old race/sport bike?

To make it run and handle better than new?

 

[80GS1000]

Sweet! How do you like that exhaust system on your bike? Do you remember what year Gixxer 750 the header came from?

On my 1983 GS750ES, I installed a GSX750F D&D exhaust system and it fits. This system is a 4-2-1 configuration. I don't know what the differences are between my GS750 16V motor and your motor but if there aren't any then this approach will give you the ground clearance your looking for. Some experts here that know both engines might be able to help.

 

[Busafied]

Sweet! How do you like that exhaust system on your bike? Do you remember what year Gixxer 750 the header came from?

GSX750F = the US Katana models, bsaically unchanged from the inception until now, 88 to 99 for sure (motor wise) all air cooleds/
dunno anything about the y2k's or beyond except the 02's (?) are when they started the 6 spd trannies.
Makes me wanna try to see if the tranny would fit in one of my 86 gixxers. :-s

 

[80GS1000]

Thanks for the info Busafied. I'm going to call some exhaust manufacturers and see if they'll share a bit of header data.

Might as well try and see if that tranny will fit - worst case, you put it back where it was.

GSX750F = the US Katana models, bsaically unchanged from the inception until now, 88 to 99 for sure (motor wise) all air cooleds/
dunno anything about the y2k's or beyond except the 02's (?) are when they started the 6 spd trannies.
Makes me wanna try to see if the tranny would fit in one of my 86 gixxers. :-s

 

[newbomb]

where did you find your headlight brackets I was going to fab mine from the gs brackets but yours look so much cleaner


Rich

 

[80GS1000]

where did you find your headlight brackets I was going to fab mine from the gs brackets but yours look so much cleaner


Rich

These are them: http://cgi.ebay.com/ebaymotors/Univ...ryZ35598QQihZ007QQitemZ170057117987QQtcZphoto

 

[wharrah]

I don't understand this attitude. Please explain.

What's the matter with upgrading the suspension and hopping up the engine on what is really an old race/sport bike?

To make it run and handle better than new?

80GS1000,

Maybe I got it wrong.

On this website, many of us live to make engines run better, and fix up suspensions. WE all customize our bikes at least some. That's GREAT. WE are all different. I just personally think less is more when it comes to body-plastic on a crotch-rocket...

But, Hey, its your bike. You can make it into a unicycle if you like. I just think to take a bike as nice as yours and cover it with a truckload of plastic (if that is what you intended) is just a waste... that's all... Your bike is a GS. Why make it into some hayabusa lookalike?

That's all I meant, since you had asked. Hope it turns out the way you want it to.

 

[80GS1000]

Wharrah-

I had this idea about 3.5 months ago that went like this: what would a Gixxer 1000 crossed with a GS 1000 look like? So I spent some time in Photoshop mocking it up.

Then I realized that not only that I didn't like it, but it didn't look like a GS anymore. Too much GSXR, not enough GS. And I LOVE my GS.

So I shifted directions with this project - to put a modern suspension on this incredible bike, and to mod up the engine for more power.

I want an oldschool bruiser of a musclebike, and that's where this project is headed.

In the end, I hope it'll look like one of these bikes, haul even more @$$ than it does now, and handle like the classic Wes Cooley AMA-race winning racebike that it is. You with me? :mrgreen:

80GS1000,

Maybe I got it wrong.

On this website, many of us live to make engines run better, and fix up suspensions. WE all customize our bikes at least some. That's GREAT. WE are all different. I just personally think less is more when it comes to body-plastic on a crotch-rocket...

But, Hey, its your bike. You can make it into a unicycle if you like. I just think to take a bike as nice as yours and cover it with a truckload of plastic (if that is what you intended) is just a waste... that's all... Your bike is a GS. Why make it into some hayabusa lookalike?

That's all I meant, since you had asked. Hope it turns out the way you want it to.

 

[justin caise]

Sweet change in direction.You've sort of steered me that way as well. That way away from the lowering and blackout industrialization I was thinking of. Well, not totally away from it...
My project doesn't really get underway until Feb/March 07 so I'm just soaking up the ideas and knowledge. (Solidworks and Photoshopping too while I wait.)
Anyway, a monoshock, I think, would shove it too far toward Gxxr, and I'm really grooving on the WASP like yellow and black shocks on the Yoshi pics you've shown here. I'e now got a 1980 GS750 in the stable and can take header measurements if you think you need em.

 

[80GS1000]

Justin-

Having a hard time deciding on the rear suspension issue. Should I stay with the original twinshock rear design, or fully modernize the suspension and go with the monoshock?

The pros of the twinshock setup: more true to the original look of the bike. Easier to set up - the GS1100/Katana 1100 swinger would bolt in with no mods, shocks bolt right up. 4.5x17" wheel bolts right up. No frame mods required. Only moderately difficult part is fabbing up a brake torque arm bracket for the bottom of the swinger, and getting a TIG welder to slap it on for you.

Cons: Have you tried to find a GS1100/Katana 1100 swinger in good shape lately? They're like trying to find a breath of air at the bottom of the ocean. :shock: The old swingarms aren't braced stock, and since this bike is destined for the track, that's a bad thing. Custom braced swingers from JMC/Metmachex are available, but they're EXTREMELY expensive - about $1000.

Monoshock rear suspension pros: Parts much easier to find, and much cheaper. Wider 5.5-6.0" rim becomes and option, and so does modern sportbike rubber width like a 180 section rear tire. Handles better, and looks TRICK.

Cons: Must design and weld frame mods carefully. Big offset front sprocket required. A fair bit of fabrication required. Looks different than the original bike design.

Sweet change in direction.You've sort of steered me that way as well. That way away from the lowering and blackout industrialization I was thinking of. Well, not totally away from it...
My project doesn't really get underway until Feb/March 07 so I'm just soaking up the ideas and knowledge. (Solidworks and Photoshopping too while I wait.)
Anyway, a monoshock, I think, would shove it too far toward Gxxr, and I'm really grooving on the WASP like yellow and black shocks on the Yoshi pics you've shown here. I'e now got a 1980 GS750 in the stable and can take header measurements if you think you need em.

 

[runrx02]

in the middle of doing full gsxr suspension including monoshock on my gs1000. will post some pics as soon as i get a photobucket account. fabbed up both top and bottom frame mounts and had them professionally welded. just playing with ride height a little before i have the mounts welded to the frame

 

[80GS1000]

Sweet! Would love to see pics of your frame mounts. Could you give some specifications as to their dimensions and what you made them out of? Also, how'd you mount the pivot bolt to the frame?

Would be a huge help! Thanks!

in the middle of doing full gsxr suspension including monoshock on my gs1000. will post some pics as soon as i get a photobucket account. fabbed up both top and bottom frame mounts and had them professionally welded. just playing with ride height a little before i have the mounts welded to the frame

 

[odl777]

i used a bandit header

i used a bandit header

I used a pre 2000 bandit header for my 1979 gs 750. All i had to do was cut off the old flanges and weld on my old gs ones. Worked great and sounds even better.

 

[80GS1000]

That's really smart. 8)

If the exhaust port spacing between the GS1000 and GS750 is the same, that may be THE way to go.

Did you have to fab up a midpipe or make any other mods to the Bandit exhaust?

I used a pre 2000 bandit header for my 1979 gs 750. All i had to do was cut off the old flanges and weld on my old gs ones. Worked great and sounds even better.

 

[Dink]

That's really smart. 8)

If the exhaust port spacing between the GS1000 and GS750 is the same, that may be THE way to go.

Did you have to fab up a midpipe or make any other mods to the Bandit exhaust?

GSX750 & GSX1100 exhausts interchange if that helps.

Dink