If it is an L98 6.0 litre, I would assume it is about 330KW

quote:

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Originally posted by GeeR
Factory 260-270 kW

9C1 means a number of additional options related to being a police car, some desireable such as FE2 and LSD, but also wiring, lighting, etc.

There is no power or performance difference.

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wow! thats a big diference. one says 330 & other says 270???

As GeeR says....stock as a rock in KW but thrashed to the end of its life.
Mate work on cop cars and they got treated very well...NOT!

oooooooooooooow with that......please dont post on the jokes thread cloudy!!!!

:-)

Edited by user Saturday, 24 September 2011 10:05:39 PM(UTC)  | Reason: Not specified

Boom tish...

we'll all need some oinkment for split sides if this keeps up.

Edited by user Monday, 26 September 2011 6:40:25 PM(UTC)  | Reason: Not specified

Not saying these 2006/7 VZ 6.0 V8 cars aren't good things. They certainly fly when you get stuck in and compared to an LS1 or even the HSV LS2 of the same period are better if you plan to tune and modify (particularly the heads are thought a better starting point).

But despite what a lot of people think, there is no police tune or 'chip', so unless this particular VZ L76 - after it was offloaded by Plod - has had an aftermarket 'tune' (or the other common mod that makes them feel very quick - diff gear change from a manual car) it's just like any other V8 of that year.

A 6.0 VZ sedan will only be a L76.

L98 and L76 are basically the same engine, notable difference being L76 has the 'displacement on demand' aka 'active fuel management' or AFM valvetrain (and some other differences such as valley cover, oil pump, larger capacity sump).

All VZ V8 built in 2006 have the L76 6.0 litre motor (before that they had LS1). While the AFM hardware is present, it is not 'activated' in the engine management.

VE V8 sedan was released with the L98 in 2006 - but some VZ non-sedan models continued, so they got the L98 too.

(VE L76 happens in 2009 when DOD/AFM was activated on automatic V8s, i.e. manual VE have an L98).

So, factory power claims were:

2006 VZ sedan L76 260 kW
2007 VZ sedan finished, non-sedans get L98 270 kW

which have been backed up as believable by dyno runs on new cars over the years. Dynos have also shown that some engines are a little better than others, maybe you've also picked up a particularly good one.

I have one of the 2 05 prototype VZs that made the road. Quicker than VF SS as I bought her, and more, 1st owner after HSE. Took a long time to find a cam that wouldn't wreck the package.

As mine was bought from Holden Special engineering I know there were no aftermarket mods done. She's certainly light which is clearly some of her acceleration. 4spd Auto that seems to be tuned for a crisper shift. Engine seems to be tuned differently, but as has been said, can't be sure without hooking to a computer. Cam wasn't massive, could have been SS, but truck has been suggested. I still have it somewhere, maybe it has a part number. When rebuilt I found chunkier than ls2 rods inside (think they were 5.3l but found listed for an ls6 clubsport) and 3 bolt cam but she was an 05 prototype. She was also very very well balanced, but I guess they all are. Don't know about what's standard as bouncing off the limiter is frowned apon by car yards, but 6500rpm rev limiter and no speed limiter.

Edited by user Saturday, 14 June 2014 5:29:34 AM(UTC)  | Reason: Not specified

As for wear and tear...makes a difference, but it's not the answer. I rebuild "Lacey" so she's tight again. Upgrade as of now from faster than VF SS, to faster than Walkinshaw VF 6.2l clubby/it's driver (without prestall/rev vs drag launch). I now run a stage one high tractability cam a little fatter than stock LS2, not enough to cream a car like that on it's own. Stock L92 heads, LS3 intake and Trottle Body and LS7 injectors give the engine more potential than LS2, but no advantage against LS3.