Anyone have a tiny supercharger laying around? SC14, AMR500, M45 (maybe too big). Am I missing something? Anyone have one laying around? Needs to be sized for a 100 hp engine and I would like to get a 30% increase.
Anyone have a tiny supercharger laying around? SC14, AMR500, M45 (maybe too big). Am I missing something? Anyone have one laying around? Needs to be sized for a 100 hp engine and I would like to get a 30% increase.
I have one, but I've got plans for it.
They are usually a bunch of them on Ebay with prices starting at around $100.
there is also the SC12 which came on the supercharged mr2's. There were ~100 hp in N/A application. Its been a while since i looked but i think they are somewhat cheap as most people remove them to upgrade to the SC14
That is not tiny. My Jetski superchargers are way smaller than a M45.
Instead of describing your engine by HP, what about its displacement? SC is an air pump; it cares little about HP.
I think the jetski ones are for engines around 1-1.5L.
1L bike engine. 9k rpm redline. I didn't know to look at jet ski applications.
dalek wrote: Instead of describing your engine by HP, what about its displacement? SC is an air pump; it cares little about HP.
Actually, no. The amount of air being pushed through the engine is very much related to HP output.
rslifkin wrote:dalek wrote: Instead of describing your engine by HP, what about its displacement? SC is an air pump; it cares little about HP.Actually, no. The amount of air being pushed through the engine is very much related to HP output.
It is a whole bunch more complicated than both of you are getting at and both of you are correct. You need to size the unit to the amount of air required to provide boost. Since a SC has a fixed displacement that is constant at any RPM you need to figure out the volume of air you want that will boost the motor to where you want and then you need to figure out what SC unit will do this while keeping it with in its operating range. Adjustments are made with the pulleys (both) as well as the supper charger size. I could run either a M62 or a M90 on my 2.5l motor. Since my Maz RPM of the motor is only 6500 RPM I went with the M62. If I was taking the motor up to say 8 or 9K I would probibly go with the M90 with larger pillies so I would get the same flow of air per engin revolution with the M62 but the M90 would be turning much slower so that it would not overspeed at the higher end of the RPM range. There are also some volumb efficiency losses at the bottom and top end of the SC units range but lets keep it simple for now. In short is is not as simple as either of you are making it to be but both of you rase points that are correct.
Start here and play around with things and see what combination of things work for you . Dont mind the bottom part of the Excell sheet I was playing around with air speed in the tubes but that is a whole different set of problems.
You will need to open the link with internet explorer to work with the spread sheet
In reply to dean1484:
Good info Dean, thanks. However, I can't get that site to work even on IE. It needs Office Web Components that are not available anymore apparently.
subbing to see where this is headed..
singleslammer wrote: In reply to dean1484: Good info Dean, thanks. However, I can't get that site to work even on IE. It needs Office Web Components that are not available anymore apparently.
It should be in the latest version of IE. I can open it with my wife's PC and it is using windows 10 with what ever version of IE came with it. I am running win7 with ie 11? And it works. I usually don't use ie I use crome. Maybe I can see about putting it up on google docs or something later.
The Yamaha Seca Turbo from the early 80s had the smallest turbo I have ever seen.
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