Supercharging

[Herald 0]

I want more power. Anyone got any experience of supercharging a standard late VR6? It seems the best way to get a lot more power. What about the engine life? Mine's 1997 done 70k, totally standard car.

[simey 0]

You can supercharge a standard VR as the kit just bolts on, they claim this will but the power up to 245bhp without any others mods. Been running the Z-Engineering for 11k without any hitchs.

Speek to Vince at Stealth

ZR2-Engineering charge for sale.

[ Edited Thu Jan 15 2004, 11:25PM ]

[Guest Olly_K]

How much did it cost ?

I was gonna ask nik saran to do mine, he wants 3100 all in, fitted

[binliner 0]

does that say you're selling yours Simey?

[simey 0]

binliner my supercharger isan't for sale but there is one advertised on Stealth's website for £1900.

N.B. Cars with air con don't need the extra pulley wheel but if don't have air con make sure the bracket has the pulley on it.

[jcorallo 0]

yep - the two things that vary between VR6 SC kits are:

1) chip - about £220 for an off the shelf chip.

2) idler pulley bracket - about £120 or thereabouts.

So if you buy a second hand one, its worth bearing this in mind.

When I was trying to sell mine last year, none of the people that contacted me had a 1993 non AC VR6 - hence I still have the kit.

Jules

[mina 0]

S/chargers will give you more power - but only from 4k onwards - you wont feel much difference below that. I recommend you have a go in one first to see what I mean.

[Herald 0]

Thanks for the info. Interesting about the 4k comment. I thought that the benefit of the supercharger instead of a Turbo was bottom end response and no lag as it doesn't need time to spin up. My car is a 97 with air con and more or less highline spec (but not totally) so I will need a kit like that. What about engine life?

[jcorallo 0]

Herald - both myself and Mina have Centrifugal superchargers. Mina has a Vortech unit, I have a Z-Engineering unit. These are basically "belt driven turbo chargers" (the compressor blades are very similar - just bigger and turns slower).

These are unlike the G-Lader unit (used on the G60), or the Eaton unit (as used on Mercs and on the new Mini Coopers S) which are positive displacement types. Its this type of charger that gives the low down torque thats synonymous with suprchargers. These generate boost all through the rev range.

Centrifugal types dont give this low down boost, as they only start making boost at about 3250. At 3250 my SC makes 1psi. At 7000rpm, it makes 8psi. Its pretty much a straight line in between the two points.

Jules

[Macca 1]

How come you have decided to sell it?

[Herald 0]

Thanks, now I get it. So if I wanted more low down torque, what's the most effective way please? I am very keen not to change the look of the car, simply to give it more go.

If I did go the supercharger route, how driveable is the car? Are you simply lining the pockets of the tyre manufacturers or can you put the power onto the road effectively? Having a go first is certainly sounding like the right advice.

[Macca 1]

Im not pretending to be at all knowledgable about this, but turbocharging might be another option to consider. You can certainly get HUGE power down this route but i know nothing of costs and reliability.

[mina 0]

If you want low down power - get a Shrick VSR! Its as simple as that - there is no better way! You'll get an additional 20lbft of torque all through the rev range and the car will pick up much much better from low revs.

[simey 0]

If you want low down power - get a Shrick VSR! Its as simple as that - there is no better way! You'll get an additional 20lbft of torque all through the rev range and the car will pick up much much better from low revs.

I'd agree