Here is the article Title and first sentence in the Auto-Scape.com article on 98-03 XJR:

1998-2003 Jaguar X308 XJ8(R)- An under rated scorching luxury Saloon

The Jaguar X308 XJR is a fabulous under rated machine and should go down in automotive history as a thoroughbred.

Also has a paragraph on Dissapointments and what would we have done better?

relatively cheap to make modifications to the XJR powertrain to get a lot more power. The supercharger is only driven at 2:1 drive ratio and the peak engine revs are 6150 rpm (the naturally aspirated engine revs to 6800 rpm). Eaton says the M112 has a peak rotational speed of 14000 rpm- which means there is some room to increase pulley ratios for more power if you’re willing to change the supercharger drive belt more often.

Here is the webpage link to the complete article:

1998-2003 Jaguar X308 XJ8(R)- An under rated scorching luxury Saloon | Auto-Scape

Jim Lombardi

 

Interesting read. Glad you put it on.
Dave