The Guys on the ZX12 mailing list are all laughing at us

Wobbling? Like (original)GSXR750 wobbling? Brrrrrrr...

I certainly wouldn't want to wobble at these speeds...

I wonder, is the Bus more stable than the ZX11 at top speed? (I've never been on a Bus)
 
Ninjaknight is right as far as I am concerned. There are four Japanese bike companies, and as far as I am concerned one is as good as the next. I'll give my money to the one that makes the best bike. Last time it was Suzuki. Next time it might be someone else. We are all just a bunch of round-eyes with money to them.
 
That is from the good old days before that bike became a fatbody. Sounds like you still put it on a serious diet. I like older bikes too. Esecially the first generation Suzuki Katana from the early 80's. Motorcyclist did a reader's ride recently on an 82 Katana with an Arias 1188 piston kit, Faliconed crank, Mr. Turbo GS 1000 turbo and 42mm Mikuni's. The guy says it can make 28 psi boost. It was not dyno'd but if it can keep it's poop together that must be pretty impressive ride. Could be my interpertation but the lines on that Katana remind me of the Busa. The styling on both is enigmatic but beautiful.
 
All this talk of modded bikes revs me up......

I have a good buddy who's building a bike for horsepower and streetbike shootout competitions. It's an old 86 GSX-R1100 being stuffed with a 1246 cc low compression piston, a RayJay(?) turbo and an NOS nitrous system. The turbo is good for over 30 p.s.i. and should make 300-350 horsepower at full boost. Then add a 40 shot of nitrous, and with the added intercooling effect, the bike should be in the 400 horse neighborhood. It sits on a fully polished frame, TSP did the trick swingarm (68" wheelbase), RC Component wheels, etc. The rear has been widened and "beadlocked". It's now a 7 1/4" rim with two rings (or caps) that wedge the sidewall between it and the inner rim. The tire is actually stretched out over the inner rim and screwed down so it won't break the seal under load... crazy deal! The neat thing about this bike is that it can be run at a predetermined boost and nitrous setting, or can also be run through separate progressive systems for each. This way you can set the bike up to use as little or as much power as you want, when you want.

The bike should be a riot to ride when it's done. I can't imagine swinging my leg over a bike with that much power. Then to do it on a streettire and no wheelie bar.....wow!


Kevin - fastzx9@dragbike.com
 
I am no expert and correct me if I am wrong but I think that a progressive boost system is where back pressure on the waste gate is controlled in stages. It automatically adjusts boost settings by changing pressure to the back of the waste gate. Some advanced systems can optimize pressure control through many stages (I think up to 20) to minimize wheelieing and provide more controlled power. It allows you to customize your boost.
 
I agree Mr. Bear until Kawasaki starts sending me a check I am not going to run my soup hole about how great they are or how wonderful I am for owning their product. Even if the new 12 exists and breaks into the nines consistently, hits two bills without going airborne and has an ice cream maker it is not because of me. It isn't like I was part of the new product launch team or in the engineer group.

I am proud however to be a part of a sport that is a test bed for new automotive technologies and is on the cutting edge. The fact that a bike like the Busa can be sold for a mere ten five is unbelievable. We are living in the best of times.
 
He who Laughs Last Laughs the Best!!!!Are we laughing yet!!!!!!!No we are tapping into the Hayabusa for unused Horse power that are still waiting to be unleased.
 
So these would be electronic devices witch regulate the air (manifold pressure) the in the waist gate. Is it rpm activated, or rider controlled? once you get going, wouldn't you want full boost in your upper gears?

Any one know who makes these? (cartech?)
 
I think that there are two types. Pneumatic which are fewer stages and electronic which would provide for more stages. Hahn Racecraft is one company that is working on them. I think that pneumatic are shift controlled and the others may be tied to rpm but I am way over my head. The variable stage systems are an evolving technology I think.
 
Kevin, Rayjay did the turbos on the original KZ1000 Z1-R TC's in 1978. I don't know what they have done since then; it seemed to me that California emmisions laws put them out of the motorcycle business.

Don't know if you were just looking for a spell-check on their name or what, but if they are still around, that is good to know. Your friend's bike sounds like one scary ride.
 
Well, the best I can gather... and I'm certainly not an expert...is that the progressive works with a combination of both electronics and pnuematics. The boost advancing is done through electronic pulsing to the solenoid, where the actual operation of the wastegate and plenum is pneumatic. The process order would go intake plenum to boost controller to the turbo. There is a rubber line and spring from the plenum to the wastegate which measures the exhaust gas. This spring is set to a certain resistence and as soon as this amount is reached, the excess will bleed off through the solenoid. The solenoid in his set-up is good for 20 p.si. of bleed off.... so if he wanted a max spool of 26 p.s.i., he would need to start with no less than 6 p.s.i. from the get. Then the advanced of boost would be controlled electronically through timers and the pulsing to the solenoid. I hope this helps.

Kevin - fastzx9@dragbike.com
 
Ninjaknight and fastzx9r you are both idiots what are you doing here variable blah blah blah you turbo sissies when the ZX-12 is on its way?
 
Well hello to all! Im the guy thats building the turbo/nitrous gsxr. Let me correct my little buddy on the boost controlling discussion.The progression is controlled electronically thru a schnitz prostreet controller. A solenoid is used inline between the plenum and the wastegate this is what actually regulates actual progressive boost. On the exhaust port of the solenoid a bleed valve that is adjustable is used to limit or adjust psi bled. The wastegate regulates overall boost . The wastegate is adjusted by turning a screw in to increase spring pressure (for example if you turned the screw in a couple of times and jumped on the bike and went for a short ride you can tell where its at because the boost gauge will only go up to a certain amount. Lets say 5 psi. Your wastegate is set for 5 psi of boost.Now when exhaust gas reaches the turbo it spins it up and creates boost pressure,when it reaches 5 psi the wastegate sees this and the exhaust gas pressure willovercome the spring pressure opening the wastegate bleeding off exhaust.Turbo will not recieve enough exhaust pressure to create more pressure than 5 psi. If you bleed off lets say 5 psi before the wastegate the turbo will have to create 5 psi more in order to overcome the wastegate and open the valve. A total of 10 psi is what your motor will see. If you progress this over a certain amount of time you can adjust for track conditions. The solenoid is basically your high boost controller. Set it up for 20lbs and span your time while pulsing the solenoid at 20% at the start and bring it to 100% close to the finish you can leave the line at minimum boost and bring it to full boost progressively towards the back half of the track. There are many ways to progress boost or stage it and all of them work. well enough of my babble ,hope this helps...
 
Rayjay was bought out by aireseach in about '87. Their model line discontinued as far as I know. There is a company in Fresno called Depo that my still has some replacement parts for these units. The modular design of the aireseach unit made them easy to rebuild. I think a T02 would probably be close in size for 1l to 1.5l + motors, but you need to look at the compressor map to be sure. You also had more choices in turbine housings. I seem to remember two bros. racing doing a ZX9. What caught my eye here was the turbo (Aerodyne) was self-lubricated. This cuts out a bunch of nasty (leaky) plumbing.

[This message has been edited by maui (edited 17 September 1999).]
 
Thanks Sebby (N20Boy), that's exactly how it was supposed to come out.

Do you think ZX-12 would privilege us with a race? HAHAHAHAHAHAHAHAHAHAHAHAHAHAHA!!!!!
 
Well ZX12 how about it. Would ya like to play with a sissy zx9 or maybe a really slow turbo gsxr? We can even give you the go with that imaginary zx12 thats sitting in your garage! Dont write checks you cant cash cuz uncle sam and his buddys will collect!
 
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