My VX220 Supercharger Conversion

Trick · 28 Dec 2008 at 06:06

Well done mate, bet it's an absolute beast! I went out in a turbo audi s1 the other day and it was absolutely mental!

Muncher · 20 Jan 2009 at 21:33

Yesterday I spent the day at Courtenays having it checked over and having the map tweaked.

Here are the results:

As you can see the graphs are so smooth and that is exactly how the car feels to drive, instant and progressive power. If it wasn't for the supercharger whine, (which I now quite like actually), you couldn't tell it was forced induction from the way it behaves. The power delivery is immensely preferable to the various turbos I have driven.

The quoted power level is officially 210bhp and the price fully installed is £3,300 inc VAT

I'm going stage 2 in April (260bhp) and already have most of my new engine ready for the winter when I'll be swapping to the following for hopefully above 300bhp.

- Ported and pollished 2.0 LSJ Head which is further modified
- Comp blower cams
- 2.0 block
- saab turbo pistons
- forged eagle rods
- 6 rib belt alternator and crank pulley
- lightweight flywheel
- sports clutch
- 2.0 LSJ throttle body
- Harrop supercharger
- Full 3" 2bular exhaust including 4-2-1 manifold

Prophet · 20 Jan 2009 at 21:52

Fantastic results mate. The torque curve is spot on. Much better than my Mk3 LET that had nothing till 4K. Would love to see this on the track.

Hopefully I'll have a similar setup at some point in the future

olv · 20 Jan 2009 at 22:09

great stuff. it is going to be an absolute weapon when finished. I'd imagine the power delivery would make it a fair bit faster on track too compared to a similarly setup vx turbo?

Muncher · 20 Jan 2009 at 22:17

olv said:
great stuff. it is going to be an absolute weapon when finished. I'd imagine the power delivery would make it a fair bit faster on track too compared to a similarly setup vx turbo?

The turbo would pull away more with a big lump of torque but the supercharged car would be away before then as the power comes in more quickly. One thing is for sure, the SC car is a lot more driveable, is a lot easier to exploit and will hopefully be able to run all day long without heat buildup being too much of an issue.

Muncher · 20 Jan 2009 at 22:36

For comparison here's the kind of torque curve a stage 4 VXT produces...

siztenboots · 21 Jan 2009 at 10:05

6800rpm rev limit , is this because of rod bolts ?

just wondering what sort of mph range you get with 3rd gear on that , on the turbo 6800 tops out at 103mph

ineed2upgrade · 21 Jan 2009 at 10:18

or an electric water pump and controller.
im planning on supercharging the M3 eventually,lot more space to work with though

Muncher · 21 Jan 2009 at 11:55

Not sure why they stopped there, probably because of the rods I suspect.

Simon · 21 Jan 2009 at 12:39

Muncher said:
For comparison here's the kind of torque curve a stage 4 VXT produces...

Look at the numbers though, loads more torque - everywhere. If you have too much then use the right foot.

Muncher · 21 Jan 2009 at 22:29

Simon said:
Look at the numbers though, loads more torque - everywhere. If you have too much then use the right foot.

Of course, will be interesting to see what the stage 3 SC VX produces in comparison.

Muncher · 30 Jan 2009 at 15:43

This is what I've got to look forward to at stage 3 except my engine will be stronger than this one and also rev higher

olv · 30 Jan 2009 at 16:33

blimey, is that really sensible in a vx?

peterattheboro · 30 Jan 2009 at 16:39

380 horses in a car that weighs less than a shoe! :eek:

Jonnycoupe · 30 Jan 2009 at 16:51

Impressive torque curve. Seems rude to call it a curve really. :cool:

Muncher · 30 Jan 2009 at 17:29

Haha, for some reason I'd quite like 400bhp...

crazyDAJT · 8 Feb 2009 at 22:04

Muncher said:
The quoted power level is officially 210bhp and the price fully installed is £3,300 inc VAT

Ive bean looking at the VX220 for a while, was gunning for the turbo version. is that the price for the whole install? engine and the lot?? as that's less than the price difference between a good standard VX220 and a turbo version.

edit 400HP sounds fun