i seen the picture and im highly interested
anybody got some info on it or is it completely custum

completely custom....dozens of hours.....loads of parts........not a practical mod

not practical? loads of parts?  maybe a few hours but not "dozens".

All you need is a turbo, boost controller, blow off valve, a 50mm dirtbike carb, and some tubing.  Only real complicated part is running oil to the turbo, and finding a place to actually put the turbo.

Quote from: makenzie71 on June 19, 2007, 03:22:18 PM
not practical? loads of parts?  maybe a few hours but not "dozens".

All you need is a turbo, boost controller, blow off valve, a 50mm dirtbike carb, and some tubing.  Only real complicated part is running oil to the turbo, and finding a place to actually put the turbo.

lol

I love it when people over-simplify things starting with 'all you need is'.

It's turbo charging a bike that was never meant to be turbo charged. Which means finding a SPECIFIC SIZE turbo, in and out pipes, welding, bending, measuring (FIRST / THRICE?), carburation and jetting whoas, issues with reliability and explodability, and a few other nasty things.

Not to mention after actually getting it to run, can you ride the thing safely ? Spooling up an extra 35-45 HP at the wrong time could prove deadly.

There was a user that did it and posted his success here, but recommended not trying it yourself. I'll find the link...

There's been 3 known turbo GS's and all have seemed to disappear from the radar, as far as I remember 2 are/were in the states the 3rd in Australia although again the Aus version seems to have disappeared but it was put a GS with something like 90000k's on it so it may not have lasted long, its on you tube somewhere I guess under turbo GS

Thanks ohgood That was my point.  First time doing it will be a very intensive project because you will need to get all the measurments and verify their accuracy   As I recall the member that did it also converted it to fuel injected to simplify the mapping for the turbo and put several grand into it  Buy a gix6.....Same power none of the work........ or a Ducati M900 up.....or speed triple....... whatever  any of them will more than likely dust a turbo'ed 500

I've put together 11 draw-through bikes without having get complicated.  Last year I helped put together a GS750E.  We used an internally wasted Garret off a Z32 300Z.  The mounting flanges on both ends are readily available and cost $12 for the two.  We just routed the stock headers together and plumbed them into the turbine and built a down pipe and dump...required a couple hours of labor and $15 of material.  Intake was just a 1-4 plenum that the turbo clamped directly to, and there was a ebay BOV setup to a simple, welded on flange.  We used a carburetor off a CR500R and yeah we did have to play with jetting a bit but no more than you would for an intake/exhaust all motor.  The oil line was the only difficult part and it simply wasn't that difficult.

At 4lbs we ran 88rwhp and 57ft/lbs.

Anything over 6lbs and we had to use a fuel pump and run about 4lbs of pressure to keep the fuel in the bowls.  That was hard but it's simply not necessary unless you're trying for really impressive numbers.  At 8lbs we ran 107rwhp and 74ft/lbs.  At 1 bar we put down 127rwhp and 92ft/lbs.

The GS500 i wouldn't expect to run more than 5lbs and I wouldn't expect more than 50~60 rwhp before needing to address internals, additional cooling, and the expensive issues all these people here think you're going to face right off the bat.

Terry, Bob (94gsrider) had the turbo GS here.  He made the setup as simply as possible and as cheaply as possible.  Outside of the megasquirt EFI he built (probably cost a couple hundred), he had little more money invested than what I describe.

  

Quote from: drowningbird808 on June 19, 2007, 03:00:35 PM
i seen the picture and im highly interested
anybody got some info on it or is it completely custum

http://gstwins.com/gsboard/index.php?topic=34218.0

If this is the one you are referring to? Best to try to contact him directly. See his profile.

(Yawn)  This topic comes up about twice a year.

Can you put something together with duck tape and baling wire in under a week for less than $500?  Sure!  Will it run for very long?  Nope!

Put another way, I can build a "vacuum cleaner" out of a window air conditioner and a roll of duck tape, but I'm not sure my girlfriend would use it.   

I respect innovation, new ideas, and those who enjoy developing new things if for no other reason than their own personal entertainment.  Every time this comes up I suggest that the poster develop a thorough grounding in the theory and operational practice of internal combustion engines before they go off half-cocked.  To develop a working system will take more than just a little number crunching, a few custom parts, and a bit of labor.  If you're up to that challenge, go for it!  If you want to slam-bang something together you would be better served by a new GSXR/CBR/YZF/XYZ-xxxx in your favorite color.

If you're still with me, go down to your local book dealer, plunk down around $140, and pick up both volumes of "The Internal Combustion Engine in Theory and Practice" by Charles Taylor.   

Quote from: GeeP on June 19, 2007, 06:57:29 PMTo develop a working system will take more than just a little number crunching, a few custom parts, and a bit of labor.

haha but my first draw-through setup was done that simply!  Took quite a bit of time but it was my first project and I went in completely blind.  That bike still runs today and some of the intake plumbing is actually epoxy-coated PVC lol.

The most important things to keep in mind, especially with your first project, is that your first project should never be a bike worth thousands of dollars and it should never be the transportation you rely on.