Hey Guys, this is actually my first post on gstwin, although I have been following the forum for quite some time now.  I currently own my second gs and enjoy most everything about it.  My name is Bob and am a senior at the University of Cincinnati, majoring in Mechanical Engineering.  I have chosen to incorporate the gs500 into my senior design project.  What I am going to do is design, build, and test a turbo kit that could easily be manufactured for the gs and acheive that kinds of power that we've all wanted from our Gs500's.  To aid in the design of the kit I have created a survey that I would like you all to take fives minutes or less and fill out.

If you are interested and willing to fill out my survey (less than fifteen questions) then please send me your email address by replying back to this or by emailing it to me at BMG1022@aol.com.  I will then email you the survey as a word attachment.  I know what I'd like to see in a turbo kit for our bikes but am interested in what everybody else feels is important and would like to see.  Thanks everybody for helping out!    

-Bob

Bob-

There's been some discussion on here in the past about turbo kits and their real-world feasibility.  A search would turn up some info.  Unfortunately, the GS has quite a few drawbacks for a turbo application, namely-aircooling, comparitively weak bottom end, weak aftermarket support for much of anything, and the carb's airflow limits.  This is just a list off the top of my head from what I remember here and my very limited knowledge of turbo's and what makes them work well, but there is a turbo bike posted in our wall of fame, so it has been done before.  I'll be happy to complete your survey and would be thrilled if you got something together that was reliable, boosted 5-6 PSI and wouldn't cost 5K to build.

anthony_gross@NO SPAMhotmail.com.  Of course, remove the NO SPAM for my real email.

Best of luck to you!!

davipu@yahoo.com

there's a couple of problems I foresee
1) aircooled.   Boosting that at any high pressure is going to cause problems

2) cost.  Most (I say MOST) of us bought GS's for their relatively cheap cost, among other positive qualities.  This means that most people aren't willing to put in more than they paid for a bike when they could sell the GS and buy something with more power than a turbo GS for cheaper......



anywho.... good luck on the turbo project; and keep us posted!!

weve had somone do just that and put thier GS's picture in the hall of fame here.  if my 650 seca/maxim (4 cyl aircooled) project doesnt go according to plan, then the turbo will be headed for a GS project.

the bigest thing to consider is to make or use carbs you can pressureize, just like the 1982-84 yamaha 650 seca turbo. this eliminates the need for a pressure box around the carbs. only other thing is to pay attention to compression ratio.

Blueknyt@hotmail.com

I have seen the turbo gs listed in the wall of fame section before...I am attempting to build a much more street worthy turbokit (anywhere from 5-8 psi).  I am trying to be realistic in the sense that I know a lot of people enjoy the gs500 so much because of it's fun to ride factor mixed with low cost.  I would like to acheive significant power gains while keeping the kit as simple as possible.   As of right now I am planning on going with a draw though setup so pressurizing the carburetors will not be necessary.  In fact I will probably use a different mikuni carburetor that will not need any modifications.  

I appreciate any information you all have to offer and would like to continue getting email addresses for my survey.  Thanks guys!  

Bob

firejumper7 at america online dot com

Interesting
juno6000 at yahoo dot com

Quotedraw though setup

Mikunies no likey, the pressure drop across the venturi will ICE the carbs over. besides, you can only draw so much through the holes with what is it.... 14.7psi at sealevel?.  pressurising the carbs would be the better way. specialy if it can be done without fully enclosing the carbs in a chamber.

Mikuni makes carburetors specically designed for turbo use.  There are ups and downs to both draw through and blow through.  As of now I am in favor of the draw through due to the fact that I can purchase a carburetor with no special modifications, it should take up less space, and there aren't very many fuel related modifications needed like in the blow through setup.  I am trying to keep this kit as simple as can be as i know that cost is a large factor.  

Anyways, guys I still need results and about five more people!!  Let me know if you're interested in the survey, thanks again

Bob

sent you an e-mail

where are you i sent you my e-mail adress are you switching projects got me all hopped up for nothing?

You will probably find this topic to be useful

http://www.gstwins.com/forum/viewtopic.php?t=6380&highlight=turbo

It contains alot of good useful info on installing a turbo on a GS.  By the way my email is t_netsch@hotmail.com  

in case you didnt get my e-mail.
Dragonflymdd@hotmail.com

anything that gives me 50 odd hp BOOST is well worth all the intrest.

i have considered making a turbo system for my bike, but kits are shure the way to go...


cameron.l@circuitcentre.com