exhaust system options

[gsJack]

A question gsjack do you know of anyne thats fitted a 4V head to a GS? Ive only briefly read stories about someone thinking about fitting the middle of a gixxer head to the gs

Suzuki did it back in the 80's with a GSX400 sold elsewhere than US.  Google gsx400 and you'll get lots of hits, here's some from GS400/500 line of engines: 

http://www.suzukicycles.org/GSX-series/GSX400E.shtml

[TheOzTurkish]

A question gsjack do you know of anyne thats fitted a 4V head to a GS? Ive only briefly read stories about someone thinking about fitting the middle of a gixxer head to the gs

Suzuki did it back in the 80's with a GSX400 sold elsewhere than US.  Google gsx400 and you'll get lots of hits, here's some from GS400/500 line of engines: 

http://www.suzukicycles.org/GSX-series/GSX400E.shtml

Cheers ill have a look see

Sorry for hijacking the thread mate all yours

[joweaver88]

A question gsjack do you know of anyne thats fitted a 4V head to a GS? Ive only briefly read stories about someone thinking about fitting the middle of a gixxer head to the gs

Suzuki did it back in the 80's with a GSX400 sold elsewhere than US.  Google gsx400 and you'll get lots of hits, here's some from GS400/500 line of engines: 

http://www.suzukicycles.org/GSX-series/GSX400E.shtml

Cheers ill have a look see

Sorry for hijacking the thread mate all yours

Youre fine man! Interesting discussion actually. Aren't there other ways of increasing performance too? Besides turbocharging anyway, because that just seems wildly impractical and possibly even dangerous because of the lag and then subsequent woosh! Anyway, so beside forced induction aren't there performance cams available for the GS500? And I remember seeing a thread somewhere about boring out the block, fitting it with bigger pistons (I think from a ZZR1000) and then slightly shaving the head to maintain a high compression... all that should be good for a nice power bump right? I mean these are things that I would never do to my bike because of the hassle, cost, and possibly breaking your bike... but it *is possible correct?

Also instead of putting a 4 valve head from a GSX wouldn't it be better to simply swap the engine and add the additional systems... but then you would be essentially creating a GSX mated to an inferior GS frame.

Might as well just leave it the heck alone and just enjoy it for what it is, unless creating frankenbikes is your thing.

The only thing from the above that interests me is the performance cam shaft but the ones from megacycle cams state compatibility with 1989-1993 GS500E models only... but I don't see why they wouldn't work on any GS500 model, any thoughts on that?


P.S. You could also increase *usable power by going a completely different direction and try to remove weight, improve the aero, reduce the rotational mass of driveline components (lighter wheels and tires, lighter sprockets, lighter clutch, lighter everything that spins!!). Anyway you get my point 

[TheOzTurkish]

You can bore it out and run larger pistons but ypull still be bottlenecked by the head in the same way that running larger carbs would still be limmited to what the head can flow...

Maybe a low volume supercharger might be a better option to turbocharging, but yer basically were held up bu that head if you could get an alloy 4 V head on there then youd have massive potental

[joweaver88]

You can bore it out and run larger pistons but ypull still be bottlenecked by the head in the same way that running larger carbs would still be limmited to what the head can flow...

Maybe a low volume supercharger might be a better option to turbocharging, but yer basically were held up bu that head if you could get an alloy 4 V head on there then youd have massive potental

Ahh makes sense, it would be like an olympic runner who has pinhole size nostrils.

[TheOzTurkish]

You can bore it out and run larger pistons but ypull still be bottlenecked by the head in the same way that running larger carbs would still be limmited to what the head can flow...

Maybe a low volume supercharger might be a better option to turbocharging, but yer basically were held up bu that head if you could get an alloy 4 V head on there then youd have massive potental

Ahh makes sense, it would be like an olympic runner who has pinhole size nostrils.

Hahahahahahaha thats gold

[mach1]

just to weigh in. I have seen a gs500 with gsxr heads on it with a custom cam made and a plate to cover the cut off parts on the sides. I have also seen a gs500 with a 600 4cyl engine in it. anything can be done to these bikes if you have the time money and skills. turbo has been done also. everything I seen was from this site years back.

[MARider]

not to hijack your thread, or be a debbie downer-

a slip on that is stainless steel wouldn't match the black header of the suzuki

so it won't be nearly as aesthetically pleasing -

unless you paint the pieces one color, but doing that would likely only be a temporary fix. would need touching up every now and then.

The stock exhaust is black header with shiny muff..don't think It would look any different and personally I think it looks good. the header pipes can barely be seen on the gs

[Suzuki Stevo]

I have a question about something I noticed... both the stock header and the delkevic header has pip that crosses over to each side of the exhaust, its like a cross spar between the pipes.

What is it for?

It's just to provide some additional support/rigidity to the headers; though it isn't really necessary.

Actually the crossover pipe or balance pipe enhances the bottom end, every Muscle Car from the 70's had one, I am assuming it does the same for the GS.

[lefgee]

might be alittle off topic but i didnt want to start a new thread.

I just purchased a jardine full exhaust and I currently have Uni pod filters on the GS with 40 pilot, 150 main .040" needle spacer, idle screw 2.5 turns rejet done by... not me...

However, will that jetting work well or decent enough not to do damage to the engine??

[Big Rich]

In regards to the GSX400 sold elsewhere:

http://www.thegsresources.com/_forum/showthread.php?t=172422&page=29

Mekanix has built a sleeper out of that motor. He is a member here, but is well known on the GSResources. I linked that page because of the picture of those amazing pistons.....

[The Buddha]

might be alittle off topic but i didnt want to start a new thread.

I just purchased a jardine full exhaust and I currently have Uni pod filters on the GS with 40 pilot, 150 main .040" needle spacer, idle screw 2.5 turns rejet done by... not me...

However, will that jetting work well or decent enough not to do damage to the engine??

150/40 would be too rich IMHO - so wont damage the engine, but may be hard to ride and down on power a bit.
How does it run, if it runs fine especially in the upper 1/2 of throttle especially when you're opening throttle, you should be fine. If not, try 147.5 or 145.

Cool.
Buddha.

[Suzuki Stevo]

In regards to the GSX400 sold elsewhere:

http://www.thegsresources.com/_forum/showthread.php?t=172422&page=29

Mekanix has built a sleeper out of that motor. He is a member here, but is well known on the GSResources. I linked that page because of the picture of those amazing pistons.....

Here...now we can all slap our monkey's without having to click!

[lefgee]

might be alittle off topic but i didnt want to start a new thread.

I just purchased a jardine full exhaust and I currently have Uni pod filters on the GS with 40 pilot, 150 main .040" needle spacer, idle screw 2.5 turns rejet done by... not me...

However, will that jetting work well or decent enough not to do damage to the engine??

150/40 would be too rich IMHO - so wont damage the engine, but may be hard to ride and down on power a bit.
How does it run, if it runs fine especially in the upper 1/2 of throttle especially when you're opening throttle, you should be fine. If not, try 147.5 or 145.

Cool.
Buddha.

I currently just have Uni pod filters in, the exhaust is on its way. Right now it runs okay