SUPERCHARGED 3 LITRE ?

[Fuzzy Harris]

One of those "that sounds interesting" moments today, friend comes over and we discuss my 3 litre P5 rover (sraight six, not V8) while taking it out on a run, (sorry it`s non triumph), anyway he says " a supercharger on this would be good, any chance you could get hold of one"  my friend is an old school proper mechanic who would be able to do a conversion but has no idea what  kind of kit would be needed, he had one on an allard in the 50s but can`t remember much about it, any one got any ideas on make or price of such item or is it a bit pie in the sky ?.

[GT6 M]

http://www.custom-car.us/
http://www.ambewebsolutions.com/


look up super chargers, threse  loads of stuff,

regards Marcus

[StagNL]

A popular mod for US V8s to gain more power is the addition of a 6-71/6V71/8V71 supercharger.  These were basically fitted to all 2 stroke Detroit Diesel engines - a design feature that required a supercharger to purge the cylinders efficiently.  In that guise they only charged at a minimal pressure so the engines were essentially normally aspirated unless turbos were fitted as well.  
If the V8 boys find this popular it must be for a reason.  I just checked Ebay and saw some there, some with the brand name Weiand blower.
Not an overly compact set up I believe....

[Mj17]

Assuming your talking in the UK and easy to lay your hands on then you are basically looking at the Eaton (Roots  type) or Vortex (centrifugal) superchargers.

The Eaton M45 is the most common as it was used on the series 1 BMW Mini but replaced with an upgraded unit by the (dealer fitter) Works package.  M45s are designed for 1L-2L engines so not really suitable for a 3L engine, which means moving up to the M62 (2L-4L) or M90 (3L-5.7L).

Mercedes used the M62 in the CLK320 Kompressor so they show up and I think the Jaguar XJR used the M90.

If you want more power for general road use then I'd suggest an Eaton/Roots type.  The centrifugal/Vortech type can give more power at high RPM but are basically mechanically driven turbos so the boost doesn't tend to come in as quickly but does keep building with RPM.

If you can get one you really want a Lysholm (screw) type but despite being the best design no one really seems to make/use them

Lots of useful supercharger info and tech data available at http://www.capa.com.au/eaton.htm