Re: XK-8

[Victor Naumann <jagdoc@erols.com>]

stephen kurtzman wrote:
> 
> >Since the current V8 makes over 300 HP, I would hope a supercharger
> >would add more than 90 HP.
> >
> >Regards, Vic
> 
> 290HP is the official mark. Jaguar got an increase of 77hp (from 245 to
> 322, or approx 31%) when it supercharged the 4.0L 6-cylinder. If you assume
> that they would be looking for the same type of boost for supercharging the
> V8, it would take you from 290 to 380.

Well yes, your figures are correct. But the original post said the
engine in testing now, not the final version for consumers.
Manufacturers seldom put very highly stressed parts into production,
they must be concerned with reliability and costs.
The original XJ R engine was tested at over 350 HP, and different
configurations react differently to the same type of modification.
Typical supercharger installations on american V8 s produce 50 % more HP
and slightly more torque. That would put Jag's engine at 450 HP. and the
Jag is a very high tech engine that should produce more than an overhead
valve american V8
Regards, Vic

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References:

• Re: XK-8
• From: stephen kurtzman <stephen@kurtzman.com>

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