13 replies to this topic

[Tarks]

hi im thinking of making a super charger from the induction side of a turbo
billeting a casing to gear drive to a pully on the fan belt do you think it would work??

[Oldskoolbaby]

It most certanly will. It will be very hard to get right though. There was some bloke in Miniworld ages ago who was giving it ago. He used a massive turbo off a lorry of sum sort and run it off the flywheel some how. I think he used the big turbo so he didnt have to spin it up so fast to get the right boost.

Ive got some pics somewhere. Ill try and dig them out for you.

[Madmax]

im also very interested in this idea, very interesting

[Tarks]

a little something im workin on ! :wink: just want to listen to the critics opinion !

im basing it on a t3 half turbo so watch this space early 06! if it works ill sell them
just designing casings etc on my autocad program at the mo


great stuff old skoolbaby pics would be good!

[Woody]

I saw this somewhere (cant think where) but the turbo needs to run at silly speeds like 20,000+rpm
it is just not practical to get a belt to run that fast , the pulleys would have to be huge(engine side) and verry small (Blower side)
Why convert a turbo into a supercharger when you can get a ready made supercharger ?

[AlexF2003]

look up paxton superchargers....



alex

[Tarks]

woody.... super chargers are hellishly exspensive ! if i designed a much cheaper version i would be rich and all you guys would have cheaper high power in you r cars !
if you know me at all this is what i do ! lol nothing ! is ever easy or standard!
and if you worked on a tripple pully system gearing as a chain winch you could quite easily reach speeds you require !
this will happen ! its just how and when guys!
im currently playing with gearing at the moment soon as i have reached a sensible rpm level im moving forward !



and cheers alex2003 for the link!

[SamuliS]

Here's a ROTREX supercharger that works that asked way. "The traction drive utilizes fixed ratio planetary rollers that are more efficient then traditional gear-wheels." It toke people in HKS about 20 something yrs to get it work. Good luck.

super chargers are hellishly exspensive ! if i designed a much cheaper version

Why try to invent wheel again? theres lots of used cheap chargers, try one from MR2 Toyota etc. Getting more power cost's (arm and a leg) allways.

But not to say dont do it :grin: . Go for it, make your Mini mad and fly...

[Woody]

For gods sake dont let me put you off
I want one of the first of the production line :grin:
Infact i will have one off you for evaluation ,research & development

[Sprocket]

As previously stated, it wouldnt spin at any where near the speed that would bring it on boost. These type of supechargers have a gearbox to increase the impelor speed.

not saying it wont work, but try and find the biggest turbo you can get your hands on and drive it with the smallest pulley possible, so that it will at least move a decent amount of air :cheese:

[Leonard]

the haynes reckon the t3 is capable of goin up to 130,000rpm on the metro turbo!!! i doubt it would ever get anywhere near this tho.
i saw the article on the lorry turbo/supercharger mini. the flywheel was grooved for a poly v-belt, and the flywheel housing was cut away for this.
cabin pressure pumps off of planes have been used as superchargers in the past.

[Sprocket]

Manufacturer specs for the IHI RHB5 turbo states the maximum operating speed of 180,000rpm, so for the impellor off the above turbo at 6000 engine rpm the drive ratio would have to be somewhere in the region of 300:1. So driving it off the flywheel would be more achievable. IE very big drive pulley and very small driven pulley.

[Sprocket]

Now here is a thought.

What about using the scrolls from a refrigeration compressor. These run at 1400 rpm and you should be able to get the CFM you require for your engine.

It would need a little engineering to mount the thing and overcome the lubrication issue but is exactly the same principle as the G60 supercharger that you can find on ebay

[maph2]

wouldn't it be easier, quicker and cheaper to use a new cooper s charger or an off the shelf kit?

does anyone know anuone who has fitted the vmax charger kit. i fugure the hardest bit would be to get the pulley system sorted.