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Jun 22, 2014 19:36:41 GMT
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Great work, commiserations on having stuff stolen.
noticed a lot more whining from an Eaton once when there was a big hole in the boost pipe (you get a lot of noise downstream of them & if it's plumbed in direct you don't hear it) your bypass piping might let the soundwaves come back out the intake filter? Can't think why the belt's slipping so bad though - unless you're pumping a lot of air that then has nowhere to go.
IIRC Lancia Delta S4 setup ran the blower conventionally (no off-load/idle bypass) the blower bypass just opened gradually when turbo boost overtook blower boost. Diagram doesn't show any throttle plates but i think it was a single plate in front of the blower. That seemed to work alright for those crazy Group B rally boys
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pork
Posted a lot
Posts: 1,663
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Jun 22, 2014 20:05:00 GMT
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That's pretty much how mine is.....but mine has a has a bypass route past the suoercharger, so once it's spooled, the supercharger is disengaged and turbo powers engine straight through
I can operate the supercharger clutch manually, with it disengaged, when I rev the engine, the turbo has enough force to turn the supercharger round, this ain't causing a problem is it?
The golf setup is suoercharger then turbo, mines other way round
I can't see a problem with that, unless somone more knowledgable than me does
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so your blowing the charger through the compressor housing of the turbo?
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pork
Posted a lot
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Jun 23, 2014 10:07:08 GMT
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so your blowing the charger through the compressor housing of the turbo? Turbo thru supercharger Then turbo on it's own (bypassing supercharger )
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pork
Posted a lot
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Jun 23, 2014 15:49:39 GMT
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Had a eureka moment,
I remembered that with the supercharger off, when I revved, there was enough force from the turbo to turn the supercharger round. So thought that the build up of pressure before the supercharger was enough to stall the rotors
Then thought, why is the vw setup with s/c first.
So disconnected turbo from s/c inlet and got this......
There's a bit of squeal when off throttle, but I think that's because there's no throttle pre charger now
Means that all My lovely piping I. Made will have to be redone !
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pork
Posted a lot
Posts: 1,663
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Jun 23, 2014 16:05:35 GMT
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Does that vid work?
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Jun 23, 2014 16:51:13 GMT
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there has to be a suck/blow innuendo here somewhere...
clutch on the blower is awesome - mad max would be proud
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pork
Posted a lot
Posts: 1,663
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Jun 23, 2014 17:13:45 GMT
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there has to be a suck/blow innuendo here somewhere... clutch on the blower is awesome - mad max would be proud Haha, yes, I'm just not that witty enough to think of it Clutch is done by the rev counter shift light, but will be changing that to the ecu, so it's pressure and rev related
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pork
Posted a lot
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Jun 23, 2014 20:11:06 GMT
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Anyone got any ideas why the supercharger doesn't like the turbo blowing into it?
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stealthstylz
Club Retro Rides Member
Posts: 14,928
Club RR Member Number: 174
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Jun 23, 2014 22:25:57 GMT
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Is the pressure from the turbo spinning the supercharger the right way?
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pork
Posted a lot
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Yeah :s
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Anyone got any ideas why the supercharger doesn't like the turbo blowing into it? I think it has to do with the air capacity, how much air is going into the SC (litre) how much air can a stand alone SC deliver (litre) if theres more litres going into the SC as the SC can deliver on its own, then the SC is going to act as a restrictor, try to manage the ingoing airflow on the SC and lets see what happenes.
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pork
Posted a lot
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I have put a throttle body pre charger too, which hadn't helped
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crahel
Part of things
Posts: 210
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Jun 24, 2014 11:50:39 GMT
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Have you thought about supercharger before turbo with a bypass opening between supercharger and turbo so that you don't have a suck through situation with the supercharger, I think collector may have a valid point on the superchargers cc output being less that the turbo thus creating a restriction in the charger causing the slippage. Do you have the spec's on both the charger and turbo?
By the way interesting project.
C
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1973 Lancia Fulvia s2 coupe (sold) 1998 Audi a4 sedan (sold) 2000 Nissan maxima (sold) 2007 Audi convertible.
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pork
Posted a lot
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Jun 24, 2014 12:02:52 GMT
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Dies make sense Supercharger is m24 from golf tsi Turbo is tdo4 from a Saab I've just took it all off again, gunna re plumb it supercharger first Worth a go
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crahel
Part of things
Posts: 210
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Jun 24, 2014 12:32:48 GMT
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The eaton m24 has an output of 0.4lt per revolution at 20psi. The td04 delivers 265cfm at 15psi.
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1973 Lancia Fulvia s2 coupe (sold) 1998 Audi a4 sedan (sold) 2000 Nissan maxima (sold) 2007 Audi convertible.
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pork
Posted a lot
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Jun 24, 2014 13:19:37 GMT
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So what does this mean,?
I done very little theory. Sort of bolted together and saw what happens
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stealthstylz
Club Retro Rides Member
Posts: 14,928
Club RR Member Number: 174
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Jun 24, 2014 15:04:48 GMT
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Is the turbo spinning the supercharger faster than the engine does?
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pork
Posted a lot
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Jun 24, 2014 15:43:53 GMT
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The problem was it slowing down compared to engine speed Doesn't matter now, taken grinder to it all and gunna re do it
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pork
Posted a lot
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Jun 24, 2014 16:38:38 GMT
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.....like this
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