My supercharger project

[cossiemk2]

Jurgan,  I've just looked at your inlet manifold base.

It's very like my plenum base plate except it's wider for the s/c.   I could reproduce s/c  inlets quite easily.

Mike.

A mate of mine would make me one, but he has too many projects to do.

The base you have is usable tho, if you can make a box shape to go around it and then screw a 10mm alloy plate on top. Then you can fit any blower you like and shape the plate afterwards.

[popuptoaster]

It's very nice and bound to be very streetable but turbo's are king, they don't run out of puff:)

Mike.

someone also told me that you can run more boost from an engine driven supercharger over a turbo on the same engine because the boost is more progressive and doesnt stress the internals as much, dunno how true that is though.

[Mikey J]

someone also told me that you can run more boost from an engine driven supercharger over a turbo on the same engine because the boost is more progressive and doesnt stress the internals as much, dunno how true that is though.

Not really, boost is boost however you look at it.  Internals onlt get stressed with rpm's, temps should be dealkt with accordingly.  A s/c may come on boost slowly but if that's the argument then it's about boost presentation and a turbo can be managed via it's wastegate or bov.  S/c's are good low down but for flat out power I think turbo's rule the roost.


Jurgan said,

"The base you have is usable tho, if you can make a box shape to go around it and then screw a 10mm alloy plate on top. Then you can fit any blower you like and shape the plate afterwards."

I know


Mike.

[Beastmaster]

Mike thats why i fancy the s/c option,lets face it how often do you get to go "flat out" id rather have the low down grunt more of a traffic light racer  thats why i got a v6 an not a 4 banger,besides if you go flat out round here you would loose your licence before you got into top...muddy funster gatsos

[ShaunPC]

Awesome conversion and just my thing, I hope its as much fun as it looks like its gona be.
Very nice indeed, I hope that it gives a few of us brits some inspiration to go out and do something similar.

[Tony]

well i agree with mike but for one thing

i have studied many sprints and 0 to 60 runs with the 24v cars, the time lost on the first few yard means they dont seem to build speed from the start, yet the terminal speed shows the power is there once its got going and they pull some of the lost time back.

now this is my understanding of this. the 24v being a multi valve engine suffers on low down grunt, untill it is up in the 3200rpm range it just doesnt pull as well as the 12v.
the blower will boost from throttle opening, this is where i figure the best gains for it would be, as the reves build then yeah the blower does taper off in its benifits but by this time the engine/cams are on song!

so for me as im using the car on the road the supercharger is better, how ever for track use then im with mike 100% and yes more power can be yealded with turbo's!



tony

[Phatphil]

You are all right about turbos being best for ultimate power, there is no question there, and if you were aiming for max speed, e.g Bonneville salt flats, then a turbo or centrifugal supercharger are the way to go. Also on a big open circuit they as best suited. However, our old XR4x4s are big girls, and really benefit from high low down torque to pull them out of low speed corners, which is way I went for the supercharger option. It all depends on the type of events you are competing in I guess.

Incidently has anyone tried or heard of anybody combining a roots supercharger and centrifugal supercharger? I have this idea for a later development of adding the centrifugal supercharger to fill the gap left at the top of the rev range by the roots. I know of people using a turbo for this purpose, but haven't heard of anyone using a centrifugal supercharger.

Phil