... and of course, all the unmarked VSIII utes Vicpol
had in the TMU were chipped

HK1837 is correct, the sequential roller cam VT type motor didn't appear in VS until around Nov 98, 6 months after VSIII release.

Also the 168kW upgrade appeared at the VSII release (June-96) 14 months before VT release.

The 168 kW had the upgraded intake plus a re-mapped memcal, so 3kW isn't a big improvement. They increased the HSV V8 from 180 to 185 kW from VP to VR with virtually no mechanical changes.

I agree about the 179kW figure for late VSIII. This would have been the marketing dept at work.

Dr Terry

That is correct. You always hear people say "all VSIII V8s were VT engine". No so.

As I said, VSIII was released in May 98 (the VSIII SS Ute was announced almost straight away) & the VT type V8 came out in Nov 98.

The 2nd issue of VSIII SS Utes were released in Feb 99, so had the later engine.

Dr Terry

Edited by user Tuesday, 25 August 2020 2:59:29 PM(UTC)  | Reason: Not specified

Hi this is Holden's L31 308 from HT to HG well rocker covers are different and then we have the HQ L31 ok some differences again but the same thing.
Then the HJ 5.0L
Then the HX 5.0L
Then the HZ 5.0L
Now we could point out the time line of such things that changed with the HX-Z 5.0L their were made to tune at a point and such. we can pick up on all that by looking at the prefix or casting date. So one can know what engine it is you have. just as it is with the blue 5.0L or Black 5.0L we know what it is. and the EFI 5.0L we know what that is and we can see directly when one is a VT 5.0L.

But a owner of anything who is just enquiring as to what can they do to their car to help improve in some way be that what ever, a dedicated enthusiasts may know what is best to do in that regard to help out that situation.

Now their are different types of enthusiast out their as not are all the same type of such.

But say one of no real knowledge on a subject may say, yo dog ! to the new car dealer when the HQ came out say. That their HQ GTS308 4sp I want one of them dog. ok dog wees get you one. then dog gets the car and has a run with say another HQ GTS308 4sp and gets blown away, so he turns up at the dealer claiming something is wrong with his car because his does not perform anything like the other. now what does the dealership say to such ? well maybe they will look over the car for a problem and come back saying all is totally fine. but if the other car in question is known to the dealer and he is switched on he will inform him that old mate has a option with dual exhaust and that's why. but mate did not know such a thing was possible he seen 240hp advertised and believes such is the case. false advertising one may easy claim !

You know back in the 70's 80's and even today people will claim that dual exhaust only makes more noise, nothing you could say to them would convince them of that and why was that ? well they seen the 308 advertise 240hp and that's it to them.

So a HQ 308 makes about 169hp if that with a stock single exhaust and 196hp with Holden's HQ dual and a HT-G GTS308 dual 204hp as she must be better flowing and it is louder then the HQ duel.

Look at a VN Commodore 5.0L single 165kw to a dual 180kw now with EFI one has to tune such to the exhaust to get the best out of them, or you can go backwards like my mate did with his VS SS ute and I seen the same with a VT SS the one with extractors and big exhaust had nothing on the stock VT SS, we test drove both on the same day and the dealer said the stock one went better. but who ever did the mod to the VT SS I am sure did not chip it to suit.
So see their you go one who does not have the understanding of such things is lost as to the reality and that's what I am on about.

It's the same with a cars handling, many people claim a HQ is a shocking handling car, but they have no idea that such can be made so much better, that they could not believe such a thing. they will just rant that it's shit and that the 308 is just gutless shit. just with a bit of know how the stock HQ 308 engine it's self will give a XB GT a hell of a shock and a few more small not to costly mods to the engine it's self, will hose of a XB GT.
And that's what some enthusiast could point out such facts. so the owner could have a way better experience with such a car.

One could say the same about a woman, as one could say she was a hopeless this or that but another man comes into her life and he knew how to get the best out of her, because he is not ignorant about what he has got.

AFAIK there is only one air filter element for VT V8s which is the RYCO A1358.

The VT V6 used the same filter, but the V6 with factory LPG used a smaller one (RYCO A360), which BTW was the std VL to VS air filter.

The guy reading the catalogue probably misread it.

Dr Terry

.. agree!

first thing that I do on any car I have with a Quaddy (or a mates if not mine) is to set the float level
then
set the air valve spring adjustment (as in the manual) on the 'light side' to open them quickly then
file the secondary air flap opening stop boss (on the air horn) until the secondarys can actually open 90degrees

Its a must-do

I have come across people like that even one with a New XC 5.8L found out this was the case with his.

But as to carbys I found that setting them up right and jetting them correctly was the key to getting max power out of your engine, now most mechanic's will have a spack attack oh it's running too rich as if it's a disaster that must be rectified directly and I am like f off ! it's spot on I don't give a f what they think. they demand oh you could not afford the fuel to run the thing and I say I have owned this 308 for years mate and it gets 22mpg on the highway sitting on around 120KM/H or so, that's f ing good ! I drove it 50.000KM a year I my fuel consumption recorded in a book ever time I filled up I know where I am at. sure it chews the fuel at idle at the lights but I did f all city driving.
I re jet all my dirt bikes over the years and I have people with the same type of bike say, why does yours go better than mine.

people... press testers and the like always wondered why press test Commodores (like HDT and SS models)
collected from Port Melbourne or Albert Rd were always slower than those collected from the few HDT In Nth Melbourne had available