KSV. posted:

Same here (for passenger car, not 4WD). My measurement suggest that money-wise I am doing same mileage with low-octane and high-octane petrol per dollar. But I can drive longer and harder from the same refill. This is beauty of electronic management – computer can easy adjust itself for better fuel.

Truckster (Vic) posted:

yea, hes only round 800kgs over the limit...

Trevor R (QLD) posted:

He is still about 400kgs under my gross weight when fully loaded hehehe but this is our little secret.....

I have heard similar about rta rumours purph but as yet not seen it happen and I do a few k's past plenty of rta stops for heavy vehicles. Add to my rig, the caravan at 3tonne and the little old 4.2 is working pretty hard.

Regards, Trevor.

Wizard1 posted:

Seeing as he comes from SA the RTA has no juristiction......

Rick (S.A.) posted:

The exact amount over the GVM is "friggin heaps".

Wizard 1 is correct, but watch the insurance company wriggle out from under me if this issue arises. They (CGU, through my broker) have actually been very good so far and I have ejust got cover at no charge for the vehicle while I do some sub-contracting.

In any event, here in South Oz we surely must have something similar to the RTA?

Cheers

Rick (S.A.) posted:

Happy to trade up to a 4800, Robin.

Just send the $ 25,000 changeover to me & I'll do it over the weekend.......hehee.

Same goes for trading to a diesel, so the old girl stays. I'm really quite happy with it, especially the way I've got it set up, just wanting to "optimise' as much as I can.

Cheers

Robin Miller posted:

Hi Rick

Seen them for $25000 now that they are almost 7 years old.

But yep understand.

I had to do some "training" of the Uni-chip installers I used
as they didn't seem to understand that winding timing forward a few degrees actually stuffs up your torque off idle.

Conceptually the Uni-chip is not the right design for 4wding , but you can make do if you have an auto which covers up the lack of torque, I think that why they were coming out with a new design this year.


I only got one more or less to play with , because there is no car I felt I could buy which matches the Patrol, so the current one has to be improved not changed.

By and large its a waste of time going to high octane fuel unless you shave the head to 10 or 11 :1 and certainly not economic.

Ti Trol posted:

A supercharged 4.2 petrol GQ???? Tell me more!

Also, can anyone tell me why the 4.2 EFI is so fuel hungry?

Cheers

Graeme

Trevor R (QLD) posted:

What can I say Graeme? It goes hard but that may be due to the driver??? LOL!! he is mad as a cut snake in a 4b.....alright on anything that moves then hehehe.

I have sent him a link to this thread so maybe he will answer any questions you have directly???

Here is his profile. Have a gander at his pics if you want, the underbonnet shot is of his GQ shorty blown of course, that's that big shiny thing on top hehehe.

I have the worked 4.2 GU and I reckon Pezza's blown petrol goes every bit as hard if not harder than my very capable diesel. I want him to get it dynoed to show me cold hard facts as the weight factor between my fat GU and his rather skimpy GQ shorty would make a difference in the driveability so it is hard to compare side by side just from the drive. His shorty does drive real good though, hard to get someone who has spent plenty on their truck (me) to say his mates goes better hehehe.

Regards, Trevor.