Putting a supercharger on a 911 1985 targa?

[chrisallen1275]

I help out with a porsche 911 as a mechanic and we were thinking of putting a supercharger on it.

any tips or things to tell me?

Thanks for any feedback

[graemel]

If it where worth doing porsche would have done it already. Turbo is the way to go. Ergo 962 has basically a 3.2 Carrera engine with water cooled heads.

[chrisallen1275]

Thanks. So you think a turbo is best for it then???

[graemel]

A few years back I used to race a 911 with a mildly modded 930 turbo engine and my closest rival was a chap with a supercharged 964RS. It was quick but rev range was something like 6200 rpm or he broke it and it would eat supercharger belts quite frequently. Turbo charging is the way to go but like all things, not that simple.

Edited by graemel on Saturday 10th December 21:55

[OlberJ]

The engines are fairly torquey as standard so they suit turbos better.

If you're all about acceleration and never being off boost then SC might be the way to go if it is sized correctly.

Depends what you want from the car but turbos are the tried and tested method.

[Beaky59]

chrisallen1275 said:

I help out with a porsche 911 as a mechanic and we were thinking of putting a supercharger on it.

any tips or things to tell me?

Thanks for any feedback

There is a whole host of information on turbo/supercharging on the Pelican forum, our US cousins seem to be a lot more active in this field than we do

[mike58]

Supercharging of Knoxville were big time a few years ago, they used a Whipple ( Swedish?) charger and got big numbers 400bhp on a 3.2 their installs looked great and featured in the Bruce Anderson book which is a must read for Porsche tinkerers http://www.amazon.com/Porsche-Performance-Handbook...
Good luck, Mike

[chrisallen1275]

Thanks for the help guys I will look in to those then. I think It will be better with a turbo on it? Does anyone know of any overheating with a supercharger or any problems like that?

Thanks

Chris