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Motorcycle Supercharger

TimeBombAZ said:
6k? Pft. I'd rather buy a second bike.
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I think the price depends on the bike. The VFR being a V4 probably presented more of a challenge to pack everything in. Here's what they have as far as pricing for the ZX-10:

Price: $4345** + shipping.
** We are currently offering a 12% discount ($3825 + shipping) on pre-ordered kits -- contact us for more info and an expected delivery time frame.
 
Their info is limited but supercharging these motors is a recipe for disaster. I have been involved in many supercharged and turbo charged engine builds in cars and the first thing that comes to mind is that these motors are 12-1 compression I believe. Yes, for track use, I have seen this. But for the street? And in a bike? It would be a tuning nightmare.

Secondly, this charger is going to be spinning some insane rpms at redline. I do not see where if this is a roots or centrifugal setup (assuming centrifugal), it would be the only supersharger that could come close to this for the street.

And then there is the cams in our bikes, tuned for more midrange. I do not know the specs but are they even capable of producing decent power or is there overlap somewhere in the RPM range.

ALOT of factors you need to consider here folks.
 
My last bike was a 5th Generation VFR800 and I was a member on a couple of those forums. The A&A kit seems to be very well developed and put together. Since our bikes are built to run on 86 octane (just like the VFR, IIRC) then I'm sure it would have no problem running 7-9 PSI on 92 octane. Just 7 PSI would probably put us close to 220 rwhp. I think the problem on our bikes would be hiding the belts and pullies so they don't tear our legs apart. The kit fits very well underneath the VFR's fairings.
 
Goat Roper said:
Their info is limited but supercharging these motors is a recipe for disaster. I have been involved in many supercharged and turbo charged engine builds in cars and the first thing that comes to mind is that these motors are 12-1 compression I believe. Yes, for track use, I have seen this. But for the street? And in a bike? It would be a tuning nightmare.

Secondly, this charger is going to be spinning some insane rpms at redline. I do not see where if this is a roots or centrifugal setup (assuming centrifugal), it would be the only supersharger that could come close to this for the street.

And then there is the cams in our bikes, tuned for more midrange. I do not know the specs but are they even capable of producing decent power or is there overlap somewhere in the RPM range.

ALOT of factors you need to consider here folks.
Click to expand...

The first thing to consider when it comes to compression is that our bikes are designed to run on regular 87 octane gas. Installing a supercharger will obviously entail using premium gas (93-94 octane around here, but I know on the West Coast you're limited to 91 octane). The combustion chamber is very efficient and the combination of an aluminum block/head along with a very small piston bore makes the design very tolerant of high compression. Hence even in the automotive world you're seeing high compression/small bore designs.

I didn't read into what type of supercharger they're using...

The cams in the FZ1 are fine for this application. While I'm sure you can design even better ones just for a supercharged application (less overlap) ours will work fine. No more complaining about lack of low and mid-range torque with an insane top-end rush :D
 
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