underdrive pulleys

[swijnsm]

Has anybody got some experience with them and do they make lot of difference? How do you fit them? and whats the cost?

[Scott]

explain under drive pulleys im not familiar with the term?

[swijnsm]

they change the size of the wheel andt belt of your engine and alternator. they will give less power to the alternator and more to the engine.

At this link you will find more info
http://www.aempower.com/product_pulley.asp

But they don't have them for a saxo

[Scott]

gmc do a thing called alterpower or something similar to that, it cuts the alternator when using full throttle giving slightly more power to the engine when needed, maybe worth a look

www.gmcmotorsport.co.uk

[swijnsm]

it can be the same principale but it works differently