Lockup clutch?

Falcon23 · 12-12-2007, 10:14 PM

Does anybody know where I can find a lockup clutch for the bird??? I have searched all over the net and on this forum....no dice. Any help would be greatly appreciated!

BoostedBird · 12-12-2007, 10:33 PM

I just listed my single stage on e-bay

Falcon23 · 12-12-2007, 10:58 PM

Where did you get it?

rcpriest · 12-13-2007, 9:28 AM

eBay Motors: CBR1100XX Blackbird Lock-up clutch (item 180193184341 end time Dec-17-07 20:42:24 PST)

TigreST · 12-13-2007, 2:42 PM

MRE are a maker of Lock-up clutch kits. The site is here:

MRE - Murdoch Racing Enterprises - Main Page

It doe not show much but it will provide contact info so that you might ask questions. Be for warned,..with the install of a lock up clutch you effectively reduce the streetablity of the bike. With RPM being the driving force behind keeping the clutch locked up in the engaged position there is very little chance you will be able to pull the clutch in to do normal street riding duty unless engine rpms can be brought down to lower numbers to allow the clutch to once again be dis-engaged. Also, depending on application you may or may not need a spacer plate to move the clutch cover outboard of the stock position to make internal clearance available for the taller (perhaps) MRE lock up unit. MRE can and will provide these spacer plates if the install requires it. One other thing,..drag strip shifts with out the ability to pull the clutch in to disengage the transmission will require the use of a "Two Step" style of ignition kill switch system. The micro second ignition kill unloads the motor (when the power to the coil/s are killed momentarily) and allows clutchless shifting while you hold the throttle wide open. These "Two Step" systems are normally part of the race ignition which also works in sinc with your launch system/techique and airshifter set up. MRE also sell the airshifter systems. MSD and Dyna make the Two Step ignition boxes that can make life easy in this respect. Two Step: Gives two RPM ranges of rpm limiting. The first "Step" sets your rpm for launch off the line. The second step allows momentary ignition kill for clutch less shifts that can be tied into a airshifter circuit or a manual foot shift function but with out the clutch pull normally required.

Tony

Falcon23 · 12-13-2007, 2:52 PM

Tony,
As usual, your advice is very helpful. I am actually looking into the electric shifter/ignition kill made by Holeshot. They seem to have a really good product for a really good price. As far as the clutch goes, it wont go in until I get some hp adder, either nitrous or turbo (haven't decided which route I want to go) So I am just doing some research right now for the funding aspect of it. Again, thanks for all the advice.

eliXXir · 12-13-2007, 7:25 PM

Depends on what you want to do with the project. What are you planning?

I have run single and now multi stage and probably boost compensated next year. Let me know if I can help..

BoostedBird · 12-13-2007, 8:06 PM

I'm with Elixxer, started with the single -went to the multi. to the other post, my air shifter broke and had to foot shift with the single stage. it was more difficult to shift, but with speed shifting at full throttle still no problem. drove it on the street, no problem. what clutch??? how much power???? what kind of riding????

Falcon23 · 12-13-2007, 8:52 PM

Well, when I actually get the bird boosted, it will be a track only bike. What is the difference between a single stage and a multi stage? Any preferences between them for the situation I described above?

eliXXir · 12-13-2007, 10:38 PM

Which kind of track -- drag strip or ??

Falcon23 · 12-13-2007, 11:17 PM

Quote:

Originally Posted by eliXXir

Which kind of track -- drag strip or ??

1/4 mile drag....hopefully will soon be running at AMA Prostar Real Street

BoostedBird · 12-14-2007, 12:10 AM

not sure if they completed the rules for real street yet, but you could set it up for the super street rules and run that class along with real street or street et. Super street rules alow a two stage. Adjustability is the differance in stages. they have a 54mm limit on the turbo in super street, but they are machining the inlet on the stage III kits to "fall" into the rules some of those bikes are making 500hp on a 64 inch wheelbase. i origianally set my bike up to run that class before they made it a point series and the big names jumped in. You also mentioned the holeshotIII shifter, my bike is on his web site, I used it for a long time on my stock bike. When you start making power that solinoid will not keep up, save your money and buy air or co2. I talked to a bunch of people after I had my turbo installed, and I wish I would have talked to them before I did it! Now I am building a n2o setup on the turbo motor I already have. Elixxer has a ton of info along with several others here, ask every question you can think of before you head in a certain direction.

Falcon23 · 12-14-2007, 12:22 AM

Quote:

Originally Posted by BoostedBird

not sure if they completed the rules for real street yet, but you could set it up for the super street rules and run that class along with real street or street et. Super street rules alow a two stage. Adjustability is the differance in stages

I am guessing by adjustability you are talking about adjusting the "grabbiness" of it?

BoostedBird · 12-14-2007, 12:30 AM

a single stage has arms with weights that apply extra pressure on the clutch becuase the stock clutches will only hold about 200hp before the motor drives through them. it has very limited adjustment. A multi-stage has multiple adjustments throughout the rpm range. each arm can be adjusted (and springs) for a particular rpm at which it starts to apply pressure. I have yet to see a single stage produce a 1.24 60ft time, were as it is commen with a multi-stage.

Falcon23 · 12-14-2007, 12:49 AM

Quote:

Originally Posted by BoostedBird

a single stage has arms with weights that apply extra pressure on the clutch becuase the stock clutches will only hold about 200hp before the motor drives through them. it has very limited adjustment. A multi-stage has multiple adjustments throughout the rpm range. each arm can be adjusted (and springs) for a particular rpm at which it starts to apply pressure. I have yet to see a single stage produce a 1.24 60ft time, were as it is commen with a multi-stage.

Thanks for the explanation. Sounds like I will, at least eventually, be getting the multistage. Like I said...that wont be until I get a turbo and or nitrous. First things first. I just want to do as much research as I can on all the possibilities. I learned the hard way with my car.

Partsguy · 12-15-2007, 10:26 PM

Just wondering,can you get a multistage for 98 bike?It has a 5 bolt hub.

eliXXir · 12-15-2007, 11:48 PM

Quote:

Originally Posted by Partsguy

Just wondering,can you get a multistage for 98 bike?It has a 5 bolt hub.

Yes, I switched my 6 bolt hub out for a 5 bolt. MTC makes 'em.

Partsguy · 12-16-2007, 3:07 PM

Naturally,should have known.

joperformance · 01-31-2008, 1:33 AM

Quote:

Originally Posted by Falcon23

Does anybody know where I can find a lockup clutch for the bird??? I have searched all over the net and on this forum....no dice. Any help would be greatly appreciated!

I can get you one from MRE but i will need your clutch cover to weld a bowl on it to fit the lockup. I have one in my turbo bird and it works great