Your supercharging what?

[Sphinx]

LS9 power. Where do I sign for one of these?

LS9 for HSV? December 2007 Car Review - Carsales Editorial

[PaRaDoX]

m,mmm force fed

[dufus]

Only 650 HP

[nicko]

GEEZ that would be some fun

[Grennan]

Mmm a force-fed 6.2-litre LS3 V8. Orgasm anyone?

[Morton]

Forget the stock power quotes - imagine the potential from cheap bolt-on modification!

[jet_pilot]

my vp would pull some decent times with that mofo under the bonnet! (very evil thoughts)
i heard something about a callaway engine in a hsv or holden? any good? any info on that would be cool

[Sphinx]

The 300Kw C4B Callaway motor was dropped into the HSV VX SV300. From memory the engines were shipped from the states and were hand built by the Callaway boys.

Pic attached!

[Emackulation]

Nice Sv300 picture, those things are great fun, mates got one

[Sphinx]

Here's a quote from the ls1 forums re: the C4B motor.

The changes included a specific camshaft, upgraded valve springs and titanium valve spring retainers, stainless steel intake and exhaust valves, revised cylinder head porting and combustion chamber modifications, and a specific, larger bore machined throttle body. The throttle body is the easiest identifier for the engine, as it is anodised bright red. Additional marking is also evident on the cylinder heads, where the C4B designation is machined into the head, on the exhaust port face. The swept volume of the C4B LS1 engine is unchanged from the LS1 engine, although, due to the combustion chamber modifications the compression ratio has been lowered slightly to 9.95:1. This gives improved engine performance across the entire speed range, as it allows more spark advance, due to less knock sensitivity, to be calibrated into the engine, particularly at low to medium engine speeds. The HSV C4B LS1 engine uses a high flow induction system, that does not require a Mass Air Flow Meter, and incorporates this with the optimised Cold air Induction System, a Low Restriction Exhaust System (including a specific, straight through design rear muffler) and an Optimised Engine Management System. These improvements allow the engine to develop 300kW at 6,000 rpm and 510 Nm at 4,800 rpm.