[Diy_efi] "Wet" Manifold Questions

[justin ivan]

The torque curve is impressive. That is for sure. The noise level of the 
installed one's I've seen certainly aren't. As far as power, they haven't 
really been shown to make great power. I have two issue with superchargers 
on a 4 cyl
1) They very often make too much torque down low, causing accelerated 
drivetrain wear and torque steer.
2) Most 4 cyl's make power by spinning pretty fast this can cause problems 
as the parasitic drag tends to get pretty expensive hp wise.

If you've got good bandwidth here is a video of the lysholm on a VW
http://www.autosporttuning.com/videos/lysholm.rm


Just some personal opinions, can you make power with a supercharger on a 4 
cyl, yes, yes you can.
Justin


From: Stephen Andersen <SAndersen at advan-tek.com>
>Reply-To: Diy_efi at diy-efi.org
>To: "'Diy_efi at diy-efi.org'" <Diy_efi at diy-efi.org>
>Subject: RE: [Diy_efi] "Wet" Manifold Questions
>Date: Wed, 15 May 2002 15:41:53 -0400
>
>Lysholm is the "inventor" of the screw compressor
>design.  All twin-screw compressors are made under
>license to the Swedish company that owns this design.
>
>The ownership and layout of the Swedish companies and
>the license has changed fairly often in the last few
>years to make me unsure of what company actually owns
>the name "Lysholm" compresor.  Opcon Autorotor is one
>licensee.  SRM is another licensee (or perhaps even the
>owner), of whom Whipple is the exclusive US distributor.
>Ironically, Eaton now owns SRM.  All of the SRM compressors
>have been recently redesigned by Eaton to use all Eaton
>technology for manufacturing, bearings, gear drives,
>lubrication, etc...
>
>I think it would be PERFECT for a 4cyl, as it would give
>you lots of low-end torque, while still giving efficiency
>and power "near" that of a turbo at the high end.
>
>Much flatter torque curve to be had...
>
>Steve
>
> > I've seen it repeatedly referred to as a lyshom? Never bothered to
> > investigate if it really was or not. It makes decent power
> > but for a 4 cyl I
> > think turbo's are more appropriate.
> >
> > >--
> > >Eric Fahlgren                                        MSC.Software
> > >Stimulating Reality                      Ann Arbor, Michigan, USA
> >
>
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