Supercharging

scar_biker · Post by **scar_biker** » Mon Mar 13, 2006 10:40 pm

Has anyone successfully supercharged an FZR.........

dragracer1951 · Post by **dragracer1951** » Tue Mar 14, 2006 9:37 am

I said it before. I'll say it again.....
No
There is nowhere to take the drive from unless you want to do some major work and take it from the starter drive but then what to do about that pesky sprag clutch....
How are you going to dampen the pulses to the lower pulley? How are you going to keep the thing from eating the end plates or the rotors? What about controling manifold pressure when you get out of the throttle?
Who are you planning on having do the work? Got a full blown (get it?) machine shop at your house? It IS nice to have a machine shop...
Me thinks you have no idea what you need to do. This is a VERY spendy project. I have built prolly twenty blown bikes and it ain't no easy thing to get done. Actually buildin one really IS pretty easy. Keepin it alive is the trick
All the blower bikes I've built were drag bikes and they were not concerned with how wide the motor is...you need to be concerned about this. How you support the blower nose is CRITICAL to it's longevity.
Do you have a CAD system and know how to use it?
That will be the cheapest road....Choose a system (Like Solidworks) that will allow you to do Finite Element Analysis.

exupturbo · Post by **exupturbo** » Tue Mar 14, 2006 2:19 pm

YZF 750 motor with a blower, no intercooler and some VERY expensive machine work.

Much easier to turbocharge than supercharge

Mark

Post by **Hooligan** » Tue Mar 14, 2006 10:49 pm

that's pretty damn cool.

willi · Post by **willi** » Wed Mar 15, 2006 2:07 am

Hooligan wrote:that's pretty damn cool.

THAT IS. I BET ITS THE ONLY ONE IN EXISTANCE.

wslonger · Post by **wslonger** » Thu Mar 16, 2006 12:39 am

willi wrote:
Hooligan wrote:that's pretty damn cool.
THAT IS. I BET ITS THE ONLY ONE IN EXISTANCE.

Tried looking up info on that I tracked it down to denmark If I remember correctly, But the company's site that has the pictures up never responded to e-mails I suspect they may not speak english.

wortdog · Post by **wortdog** » Thu Mar 16, 2006 2:10 am

Back when I was in Formula SAE, one of our old cars had an FZR 600 with a roots blower run off of a pulley on the crank where the alternator used to be. An automotive style alternator driven off the supercharger belt was used in place of the stock alternator. This car was originally put together in 1994 and continues to be used as a team practice car to this day with zero supercharger related problems, although the low end torque tends to break driveshafts pretty often.

Post by **FZRDude** » Thu Mar 16, 2006 4:35 am

I bet that thing is a hoot to drive...

wortdog · Post by **wortdog** » Fri Mar 17, 2006 1:31 am

This was the fun one:

Turbocharged Honda CBR600 F3 motor with 10:1 compression running 10psi of boost. It only weighed 398lbs wet. Unfortunately the suspension design was pretty lacking.

scar_biker · Post by **scar_biker** » Fri Mar 17, 2006 10:42 pm

Cheers for the input, I'm currently attempting to supercharge my FZR

I'll give you all a laugh and let you know how I get on

desmo01 · Post by **desmo01** » Fri Mar 17, 2006 11:35 pm

Dang U of I guys...

I was at FSAE as well in '94 with Purdue. We had a F2 with a blower and intercooler. You don't need to really knock down the compression that much with that 20mm restrictor. We smoked a motor (oil away from pickup) 2 days for the race. You remember the accident? That was Syracuse that ass-ended us (they spun). F***ing NY drivers!

What he is not telling you folks that they also had a straight axle version of that thing (this is from memory) that had a fizzer 600 and was sooper fast in a straight line... but had some er issues in cornering.

Our blower was done in a similar fashion, used a ZX7 alternator for juice and belt tensioning. Ran real good...

NB1000 · Post by **NB1000** » Sun Mar 19, 2006 5:35 pm

Yes there is a danish company Roulund that owns a smaller company that makes Superchargers aimed at motorcycle engines. Their name is Rotrex http://www.rotrex.com/ - the do speek english (most of the danes do, as we are such a small country that we have to at least be able to let others know what we mean - well, we do have some cartoonists as well that are able to communicate to some people without saying anything at all).

But be aware - that danish design costs (a H.D. kit costs $ 5000) - in the U.S.A. it seems that there is 4 retailers of their product range.

As far as I remember, 10-12 years back some Yamaha-powered car and motorcycle-sidecar mud-racers in Britain used a British Supercharger on a FZR1000 engine, but the name of it i cannot recall. As far as I remember the costs of the Roots or Eaton unit was around £ 1500.

One other thing to take into consideration is where the charger is placed, thats where your petrol tank normally are!

T.T.Toft

EXUP Worldwide

Supercharging

Supercharging

Supercharger - Blower - Kompressor whatever you call it