Supercharger

[marc.earl@db.com]

I am thinking of splashing out and treating my 993 C2 to a TPC supercharger. I have found a company in scotland that will supply and fit it for circa £5K. Apparantly it adds approximately 100hp and significant torque hike all the way across the rev range.

What do people here think, has anyone done it, what was the result. Any particular concerns about subsequent reliability ?

Marc

[964russ]

Ive heard there very good and reliable if fitted correctly.
Ive looked into them, but there to expensive for me at the moment.
There was a 964 for sale a while ago with a supercharger, fitted by 9m. That looked very nice.

[J.J.]

5k's big money for an extra 100 HP. Thats £50 per HP My rule of thumb would be £15 per HP. If your happy with another 100. Nitrous would be lots cheaper way to wreck your engine. Or you could run on Methanol. (But don't tell the chancellor.)

[tr7v8]

It's not just horsepower, blowers improve the torque all the way up the range, it's equivalent to a bigger engine, so a 3litre running 7.5 PSI (0.5 of an atmosphere) of Boost is equivalent to 4.5 litres.
Blowers are very gentle on engines, at lowish boost levels then their is no more load on the bottom end, they also don't produce the heating effect of turbos.

[tr7v8]

5k's big money for an extra 100 HP. Thats £50 per HP My rule of thumb would be £15 per HP. If your happy with another 100. Nitrous would be lots cheaper way to wreck your engine. Or you could run on Methanol. (But don't tell the chancellor.)

To get another 100BHP on a 993 which is relatively highly tuned to start with is going to be biggish money. Cams & exhaust plus a remap without a capacity increase will give probably 30-50BHP & any further than that will A.Cost big money & B. make it a pig to drive on normal roads.

[J.J.]

Agreed. I have driven a few blown cars. None were very reliable. Head gaskets were service items if I remember. Just seems like a lot of money to me. But then I drive an Audi so what do I know The cars pushing close to 300Hp standard. Not too shabby as it is.

[tr7v8]

Agreed. I have driven a few blown cars. None were very reliable. Head gaskets were service items if I remember. Just seems like a lot of money to me. But then I drive an Audi so what do I know The cars pushing close to 300Hp standard. Not too shabby as it is.

Easily fixed on a 993 with wills rings. Most standard kits that are fit & play & don't require engine mods run <7PSI boost. A lot of the gasket issues are down to people being greedy or overheating issues.

[J.J.]

Was thinking more production stuff. Vw made two, Scirrocco & polo. Then the new mini. Those wern't good. Jags better. On an old 44 they make a lot of sence as there so over engineered. & relativly under powered. But for 5K you should get a warrenty. And You can't take it with you............... (Think I'd still go for Nitrous & save the other 4.5K towards an engine rebuild/gearbox/whaterver when needed.)

[tr7v8]

Was thinking more production stuff. Vw made two, Scirrocco & polo. Then the new mini. Those wern't good. Jags better. On an old 44 they make a lot of sence as there so over engineered. & relativly under powered. But for 5K you should get a warrenty. And You can't take it with you............... (Think I'd still go for Nitrous & save the other 4.5K towards an engine rebuild/gearbox/whaterver when needed.)

G60 & G40 Laders or superchargers are rubbish & proof that the germans can get it so,so wrong. Most of the decent blowers have been british such as Shorrock or Roots or US such as GMC, Modern ones; vortech, etc. are USA made. The blown jags, Mercs as are the Binis, are bulletproof.
No one is going to warrant a self kit for 5K as the circumstances of fit etc. are so different & uncontrolled.

I'd never do nitrous for road use the limited time that boost is available would drive me nuts.

[J.J.]

Bit OT but hows yours getting on. Be ready for Gaydon

[tr7v8]

Bit OT but hows yours getting on. Be ready for Gaydon

are there 2 L's in Bollox? nah not even started it.
Really struggling with spare time at the mo. I've just changed roles at work, still with Dell though & I normally spend 1/2-1 day a weekend working. Not brave enough to ask for a passout to the garage as well
Should be Gaydon in 2009 though.