what happens if you get bored with all the non-mini parts you collect over the time?
something like this
some clearing issues with the dizzy and the oil pipe, but on the right track, i think
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| Author: | KLAS [ Tue Dec 22, 2009 9:35 am ] |
| Post subject: | another supercharger idea |
what happens if you get bored with all the non-mini parts you collect over the time? something like this
some clearing issues with the dizzy and the oil pipe, but on the right track, i think |
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| Author: | Fat Boy Dave [ Tue Dec 22, 2009 9:43 am ] |
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Go megajolt and you can ditch the dizzy. 
How did you fabricate drive off the back of the alternator? Is it gear driven or direct drive? |
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| Author: | mini-dunger [ Tue Dec 22, 2009 9:47 am ] |
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if theres a gears in there that will work awesome |
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| Author: | Asphalt [ Tue Dec 22, 2009 10:28 am ] |
| Post subject: | |
Still not finished yet?
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| Author: | JC [ Tue Dec 22, 2009 1:28 pm ] |
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mini-dunger wrote: if theres a gears in there that will work awesome
I think there would have to be to get the turbo to spin quick enough to generate any positive boost pressure. |
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| Author: | Tombo [ Tue Dec 22, 2009 1:31 pm ] |
| Post subject: | |
Thats lookin pretty cool KLAS, i like the drive block. I'm guessing it reverses the direction of rotation too  What drive ratio to the crank does it have?
I've been thinking of something similar but belt driven a bit slower with a bigger compressor like off a truck. Interested to watch the progress 
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| Author: | MiniMan_Alis [ Tue Dec 22, 2009 5:27 pm ] |
| Post subject: | |
that is awesome!!!! is that a oil drive pump alt off a diesel?? or simillar? |
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| Author: | KLAS [ Tue Dec 22, 2009 7:15 pm ] |
| Post subject: | |
yes its an alternator form a diesel, normally driving a vacuum pump (1.7l diesel from Opel). it's gear driven to revers the direction and to turn it faster. its geared 3.333 to the alternator (only found 40 and 12 teeth gears). and with the alt running twice as fast as the engine it should be fast enough for testing. the compressor side is out of a 1.6l VW turbo diesel. BTW its the 3rd version. the first was belt driven, but no belt i could find would last. the 2nd was allready geardriven but due to cheap materials it was eating the gears faster than it could build up some boost @ Asphalt: its nearly done just shortened the housing to clear the dizzy. just have to buy some tubes to connect the charger to the SPi manifold and make a new oilpipe.
and than fit it to my car |
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| Author: | JC [ Tue Dec 22, 2009 7:52 pm ] |
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Given that the compressor is not being driven by the exhaust does that mitigate the raised air/engine bay temps? Or correctly worded sentence - does it negate the need to intercool the charged air given it shouldn't be hot? |
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| Author: | MiniMan_Alis [ Tue Dec 22, 2009 8:14 pm ] |
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when air is compressed it heats up so it will still get hotter air out then what goes in |
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| Author: | awdmoke [ Wed Dec 23, 2009 9:22 am ] |
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The relatively low levels of boost used with superchargers means they can normally get away without th need for intercoolers, as the intake temperatures stay within reasonable limits. Remember that the factory turbo A series did not use an intercooler either. |
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| Author: | KLAS [ Wed Dec 23, 2009 7:03 pm ] |
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yes, it all depends on air temperature. as i'm usind EFI it will be easy to tell if an intercooler would be of any help |
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| Author: | KLAS [ Sat Dec 26, 2009 6:24 am ] |
| Post subject: | |
http://www.youtube.com/watch?v=RwRfmgFAXfY it's turning .... |
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| Author: | TheMiniMan [ Sat Dec 26, 2009 10:04 pm ] |
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well done Klas,,, that`s a start hey? 
but i wonder how much belt slip you will get,,, maybe a toothed drive system may be better yeah? keep it up bro,,, it might be worth it if it can get heaps of rpms without too much belt slip |
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| Author: | KLAS [ Sat Dec 26, 2009 11:56 pm ] |
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i hope i won't need a toothed belt as i would have to buy parts for that
but i have all pulleys from a MPi and hope this multi V belt will slip less that the normal belt. i have found a map for this compressor, it starts from 40.000 RPM. thats what i can reach around 6.000 RPM at the crank and no slipping belt. hope its enough. otherwise i will need to speed it up or find a bigger one 
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