G'Day,
I'm looking at getting a whipple to go on my 4.2 jag motor. Just wondering how I decide what size/model to get. It's going to be rebuilt to suit but at the moment runs 8:1 compression, factory redline 5500rpm & factory output an 'alleged' 255hp. Looking at a max of 10-12psi, as it's a weekend cruiser. Also going to clean up the heads, maybe larger valves and a more modern cam profile, twin 2.5" exhaust. Any idea what figures I'd be looking at, in the end? Looking for torque more than HP - should I do something different? Can anybody put me in touch with someone who's done this one before? Also looking at LPG conversion - no drama's with suckthrough set-up using a boost referenced LPG carb? Should I try & cool the intake manifold (I don't really want an intercooler per-se)? Any advice appreciated!
Cheers,
Rob.

If you go ahead with this project, please put some photos up. I restore jags for a living and would love to see a whippled jag!!!

I presume it's in an XJ6?

__________________
I love being blown!

Ok, so if you work on restoring them for a living and haven't seen one then it WILL be a bit of an oddity. It's going to be powering a '66 MKX that I've got a few other mods planned for :P

Nice!

The ol Mk 10 could do with some more torque to carry it's lard ass around. hahah

We're actually throwing some ideas around at the moment to supercharge my old mans XK120 drop head.

__________________
I love being blown!

Ain't that the truth! Oh well, big girls need loving to, y'know :P
Old-mate should be phoning me back today on pricing for the charger, & then I have to hit up a friend to make the manifold!