07-02-2012, 12:05 PM
They have a weak cylinder head. APPARENTLY. I bet it's like the XUDs reputation for blowing HGs - it's just dicks who don't have a clue who couldn't bleed them properly after a coolant change.
Just need to rip off the VP37 pump and replace with a 6cyl VE pump (6BT pump anyone?) But being a 6 cyl it'll NEVER be a revver, you're talking 4000rpm max really, you have half the cylinders again on the injection pump, and we struggle to get past about 5200rpm in our 4cyls without massive fuelling drops.. Then whack on a big turbo, and off you go... I've seen a few tuned up, 200hp should be fairly easy on a stock mechanical injection pump and a bigger turbo.
But they are indirect injection with Ricardo Comet V Precups... So they're almost identical to the XUD in injection system, just they have a VP37 electromechanical pump, but all you have to do is rip out the stuff inside and replace it with mechanical parts. Levers etc from an XUD pump would probably work pretty well and just keep the camplate and injection head from the VP37.
Just need to rip off the VP37 pump and replace with a 6cyl VE pump (6BT pump anyone?) But being a 6 cyl it'll NEVER be a revver, you're talking 4000rpm max really, you have half the cylinders again on the injection pump, and we struggle to get past about 5200rpm in our 4cyls without massive fuelling drops.. Then whack on a big turbo, and off you go... I've seen a few tuned up, 200hp should be fairly easy on a stock mechanical injection pump and a bigger turbo.
But they are indirect injection with Ricardo Comet V Precups... So they're almost identical to the XUD in injection system, just they have a VP37 electromechanical pump, but all you have to do is rip out the stuff inside and replace it with mechanical parts. Levers etc from an XUD pump would probably work pretty well and just keep the camplate and injection head from the VP37.
