i found that Jackson Racing makes a supercharger for the gsr, i found myself thinking i wonder if the supercharger works on LS motors too?? anyone know?

 

It does work, you simply have to change the flange on the manifold to bolt to the LS head.
LHT can do it for you, and if you contact them might as well have them make the intercooler for you too!

 

they do make SC for b18b/b20

 

JR makes sc's for the ls as well. Look on their website.

 

i read on another site that the JRSC for the LS comes with a smaller blower so i wanted to use the gsr kit im not very familiar with superchargers, i know they use belts and pulleys to build pressure. would i need a blowoff valve and intercooler too?? i also read an msd ignition and an upgraded fuel pump and fmu are highly recommended as well

 

Why do you want an sc when you can go turbo for less, and make more power.

 

the ls JRSC is the M45 the GSR is the M62. The M62 makes it much funner to drive. It all depends what you are looking for. This setup can make you from 230-300whp (300whp if you ever go vtec, but even at that the blower will need to be ported and intercooled).
So you could just go with a small turbo setup instead and make more power.