Hello all.

I wrote a few days back that I was diagnosed with a leaking head gasket. My shop and I did some research and determined that the leak isn't so bad that were expecting substantial damage to the rest of the motor as it did not overheat too severely.
Today is day 2 of the breakdown process and we're realizing that now would be a great time to do any pulley upgrades or general performance upgrades to the motor, since it is basically split in half.

My problem is I do not have any knowledge as to what kits are better than othrs and would love some input as to what would give me the most gains possible in the current situation.

I know there are pulley kits that are supposed to be good for a bunch of HP ,but I really don't know of any in particular.

I am hoping for someone with the knowledge to share the goods as if money were no option, and really wanted to squeeze that bad *** XJR for all shes got.

Thanks again for your time, and help.

The motor is broken down, so now is the time.

Brian - 1999 XJR

 

PM Avos about a Twin-screw kit, his car is making over 600 whp I hear. A pulley from Mina or someone adds a bit o' power. An intake from Mafioso can be ordered on a thread herem thats bolt-on hp. You could also have a shop port your supercharger, which would improve its perfromance. As would a tune.