engine internal mods?

[94suzuki500]

Does anyone know of a place where I could buy stronger connecting rods and pistons and things of that nature for the gs.  I am just looking to beef up the inside of my gs engine for my hopefully near future project.  I looked at wiseco and I couldnt find pistons for the gs, I had heard they had some.  Thanks in advance.

[davipu]

you need to custom order from them, if I remember right though Bob B had the info that you need.

[sprint_9]

I think Bob B. is running Carillo rods, and I think they were damn spendy, like $700 or somethin like that.   I think Id worry about the crank first, it is more prone to failing then the rods.

Check this thread out, I saved alot of other great threads in the second post regarding engine modding, there is alot of info in all those pages. http://gstwins.com/forum/viewtopic.php?t=15515&highlight=

[94suzuki500]

thanks, I contacted bob and received some info.  thanks for the help

[davipu]

why though? with the stock stuff you can safely add another 25 ponies. then from there you can get another 15 before you start breaking cranks.  but the heat output from a aditional 20 hp will pretty much unstreetable.

i could see if you were trying to bump the comp up and maybe found something that might work but the pin was the wrong diameter so you got rods too.   but the piston to valve clearance is already pretty tight so your going to have to find some kinda domed piston with deep valve recesses and still try to matain the low piston deck to pin center.  which just isn't going to happen. (without alot of money)

your best bet is to use the stock lower end and swap the head off a gen 1 gsx.

[94suzuki500]

Well I have been for some time wanted to turbo my gs, my dad and I had been looking into it about a year ago.  I am wanting to beef up the engine and shim below the cyclinders to make a lower compression engine. I was thinking I could send the crank to falicon for strengthening.  I dont know what all they could do or if they could do any on the gs but I only looked into for alittle bit last night.  I really dont know how much the crank would be an issue after talking to bob about it, because it just sounded like it was from off on throttle that would cause the flex of the gears and break the crank.  If I turboed the bike it wouldnt be to go and race everyweekend but to have a bike to ride and would be capable of turning in some good 1/4 mile times.  sorta like everyone with a fast bike doesnt go and race all the time.  I cold just do the head swap or drop in some large pistons but a turbo is something not many people have.

[davipu]

you just need to find some flat top or dished pistons, that should get you down to 7 to1 whare you should be fine for a turbo.  in all reality your not going to be able to double the hp and still keep it street ride-able so I'd look more for a lower range hp boost from the turbo to widen the powerband of the motor.  maybe try to find a fuelie throttlebody off a sv with a twin turbo set up you could easily get a 20-30 hp boost.

[tkm433]

Does anyone know of a place where I could buy stronger connecting rods and pistons and things of that nature for the gs.  I am just looking to beef up the inside of my gs engine for my hopefully near future project.  I looked at wiseco and I couldnt find pistons for the gs, I had heard they had some.  Thanks in advance.

Do not waste your money.  If you want more power sell your GS and buy a used CBR600, FZR600 or other bike that first off offers more power and also has a better aftermarket for speed parts.  The moeny you would spend on just rebuilding the GS motor with new pistons, rods, cams, larger carbs and what ever else would never produce the power of the CBR600 or FZR600 and handling in the end so if you want more power sell your stock GS and buy another bike.  In the end you will be ahead of the game.

The GS500 is a great bike for what it is but it is an air-cooler inline twin  which is a great work horse but not a race horse.

[sprint_9]

TKM has a good point and thats the direction Im now heading, although its not as spectacular as having a completly modded GS, it just seems more logical to me anyhow, its still damn hard to resist ording up a bunch of parts for my GS though.

[94suzuki500]

Does anyone know of a place where I could buy stronger connecting rods and pistons and things of that nature for the gs.  I am just looking to beef up the inside of my gs engine for my hopefully near future project.  I looked at wiseco and I couldnt find pistons for the gs, I had heard they had some.  Thanks in advance.

Do not waste your money.  If you want more power sell your GS and buy a used CBR600, FZR600 or other bike that first off offers more power and also has a better aftermarket for speed parts.  The moeny you would spend on just rebuilding the GS motor with new pistons, rods, cams, larger carbs and what ever else would never produce the power of the CBR600 or FZR600 and handling in the end so if you want more power sell your stock GS and buy another bike.  In the end you will be ahead of the game.

The GS500 is a great bike for what it is but it is an air-cooler inline twin  which is a great work horse but not a race horse.

Good point, but that is too easy.  I wouldnt consider myself ahead of the game by buying an already performing motorcycle like a cbr or gixxer.  They are mostly all stock anyways.  I would rather spend my time working on a bike and making it custom than riding something someone else already has.

[V8Pinto]

Good point, but that is too easy.  I wouldnt considered myself ahead of the game by buying an already performing motorcycle like a cbr or gixxer.  They are mostly all stock anyways.  I would rather spend my time working on a bike and making it custom then riding somthing someone else already has.

A true hot rodder!  I share the same view.  Make the best out of what you got and what is local.  Innovate, learn to fab, improve your skills and understanding of how things work, trade work to other rodders with different skills.  Where would the aftermarket be without tweakers and tuners?  Vance & Hines, Vic Edelbrock etc.  Not to mention the factory guys...or Jesse James (when's the last time you saw him tell someone to just go buy a new Vrod).

All of that assumes you're into the mechanical aspect of bikes though.  If you just want to ride fast, yeah the latest cookie cutter will teach you about riding faster.  

Fast riders would go nowhere without a good tuner who understands how to get the most out of a combination under a given set of conditions and how a change in conditions dictates a change in the combination.

Just like a Rider will benefit most from more track time, a Tuner will benefit from continued experimentation.  Each has it's cost and you don't tell a Rider to "skip that track because it's old, rough, and the sessions are more expensive to attend".  You advise a rider to broaden his expertise by riding in the rain, riding in the snow, riding in the desert heat riding on crap surfaces etc (Kenny Roberts Sr. rings a big bell but maybe I'm just old and grumpy).  

Same thing with a tuner.  Build a turbo bike, build a nitrous bike, build an all-motor bike.  Blow them all up, go home and reflect on what you learned.  Then come back quicker and someone will bring you a cookie cutter bike to turbo, nitrous, all-motor...

High-compression, wheelies, and nekid chicks.  My personal heaven.

[GeeP]

I wouldn't mind a Diesel GS.