Diesel Chips

[Nutta]

Bought my patrol new, nads at 80k dtronic not long after, now at 177k it seems to be going strong.

[TI_CRD_125]

I bought my Tunit for the CRD from Tunit on ebay. He sells the the trade-ins for around $500 with a 6 month warranty. Came with a new harness and has made a big difference to drivability around town. Haven't had a chance to go for a long drive yet or tow. The Tunit and DP Chip are physically identical.

[Ray!]

I was going to ask if anyone knows what percentage of 3.0's that have expired were fitted with chips. Of the few diesel jeeps I saw expired all were chiped. Just saying

Someone, some years back, did an analysis of chipped and non-chipped Patrols and it appears that chipped Patrols were less prone to having issues. I seem to remember that report saying there were no chipped Patrols that reported issues, but I can't remember that for certain.

Cheers

Ray

[heyhey]

Someone, some years back, did an analysis of chipped and non-chipped Patrols and it appears that chipped Patrols were less prone to having issues. I seem to remember that report saying there were no chipped Patrols that reported issues, but I can't remember that for certain.

Cheers

Ray

I do remember seeing something like that somewhere and generaly most people that post in the forums are those that don't know about chips, engine mods, etc. I'ld be guessing that more than 75% of ZD30 blow ups are non chipped.

[Ray!]

I have to say that I really like the way that the chip can be tuned. After dropping down the peak settings because of the severe boost spikes that I started experiencing, I was somewhat unhappy with the resulting performance, so I did some adjustments to peak settings and was able to test the results by driving around the local area and a trip to Melbourne last week. The driving experience has been much better, no boost spikes, and in fact somewhat better than with the orginal settings and that has been borne out after I refuelled today at Morwell. I had travelled a total distance of 557.9 km and used 63.77 lt of diesel. That equates to a fuel consumption of 11.43 lt/100km and that is with an auto. One has to be happy with that.

Cheers

Ray

[Nutta]

I can only dream of 11.5 lp100, my best is around 16!

[Ray!]

You should definitely be getting better than 16 with the Di, it's generally only some versions of the CRD that seem to have pretty woeful economy for a diesel. With my previous Di, I was getting an average of 11.7lt/100km, which included off-road trips and towing, over a period of about a year of driving.

Cheers

Ray

[Nutta]

I am running 285s which prolly holds it back a bit, although with those on it does run true with the gps.

But yeah, its shit!

[auggie]

My Rig sounds very simular to yours Nutta.

03 GU3 zd30 Auto

2 inch lift running 285 MT's

Full roof rack

Steel bar and winch

D Tronic

Manual boost control + Man Auto Lock up

City i get high 12' low 13 per 100 km

highway on 100 mid 11.5's loaded but into the 10's if shes pretty empty

I'd do some investigation mate I've never seen 16L per 100

One 1100km trip loaded to the brim towing my 14 foot tinny at 100 i adveraged 15.5.

[heyhey]

Thats pretty bad, with 285/75R16 BFGoodrich muddies at 30PSI, manual DI, with a roofrack, 400kg payload, chip and 3" exhaust 4000km off a service, I was getting 12L/100km on a mix of slow steep winding mountain roads and freeway between Yarra Junction VIC and Albury NSW (~300-350km) with my DI. Without the roofrack on the same trip and eveything else the same on the car, I was getting about 9-11L/100km depending on wind.

Even off road never seen 16L/100km

Edited May 31, 2012 by heyhey

[auggie]

heyhey Much difference in fuel use between the old DI and New CRD you think?

[heyhey]

I have only done 200km with the CRD, haven't filled her up yet, so not sure. She is currently in a million pieces as I'm adding all my accessories at the moment so may be a little while off getting figures.

Edited May 31, 2012 by heyhey

[The Big Rig]

Thats pretty bad, with 285/75R16 BFGoodrich muddies at 30PSI, manual DI, with a roofrack, 400kg payload, chip and 3" exhaust 4000km off a service, I was getting 12L/100km on a mix of slow steep winding mountain roads and freeway between Yarra Junction VIC and Albury NSW (~300-350km) with my DI. Without the roofrack on the same trip and eveything else the same on the car, I was getting about 9-11L/100km depending on wind.

Even off road never seen 16L/100km

I just noticed 30psi for tyres is that normal I run 38 on bfg ats

[heyhey]

Yeah I would normally run 40psi, but at the time, I had gone offroad then drove to Albury without pumping them up (actually had them at those pressures for close to two months )

[Nutta]

My Rig sounds very simular to yours Nutta.

03 GU3 zd30 Auto

2 inch lift running 285 MT's

Full roof rack

Steel bar and winch

D Tronic

Manual boost control + Man Auto Lock up

City i get high 12' low 13 per 100 km

highway on 100 mid 11.5's loaded but into the 10's if shes pretty empty

I'd do some investigation mate I've never seen 16L per 100

One 1100km trip loaded to the brim towing my 14 foot tinny at 100 i adveraged 15.5.

Exactly the same!

Maybe its a bit like the crd fuel thing, ive long given up!

[heyhey]

Ray, got this news yet?

[Ray!]

Ray, got this news yet?

Things appear OK now. The main thrust of what I wanted to do was change a minor aspect of my review to make things somewhat generic.

Cheers

Ray

[twisty]

I know the thread is about diesel but ...

Ray, you mention experience with petrol fuel injection performance and WolfECU's in your linked article. I'd like to know more please.

After doing as much research as I can understand, this is what I think I know. Being a tb45e vapour lpg/injected petrol, timing and fuel delivery are a compromise. I average 25l/100km lpg or petrol. 30 in 4low. 95% highway. OBD is Consult. I thought I could install something like the Punked performance fuel management chip or the Chiptorque XEDE. The Chiptorque allows timing adjustment as well as fuel, and is 4 times the price ($1000). I have seen claims of 20% fuel reduction with dual mapping ecu piggybacks, and at my current usage the Chiptorque would pay for itself in just over a year. Although, after a call to a recommended local dyno shop I was told not to waste my money! Thoughts ... please

With your off road navigation thread I wonder if it's possible to do it all from a windows tablet?

You also appear to have a Scanguage? Your opinion please.

[Ray!]

I'm not sure that a piggyback system is the ideal way to go with petrol engines. Units like the Wolf, Motec, Haltech etc replace the entire ECU and allow you to set and manage every parameter of the engine. The Wolf3D that I installed in my TB42E allowed me to tune the engine to perfection (from memory at 250 RPM increments), though I did have to build a complete new distributor from the original carby model, as the EFI model wasn't compatible with the Wolf system. I also had to build the entire wiring loom for all the sensors, injectors etc, as none of the systems were plug and play. Nowadays I believe that they all just plug in. Just about all of them are now laptop tunable, compared to the somewhat clunky interface modules available in those days. I actually used a spreadsheet to log all settings, adjusted and graphed the results from hours of road testing to get optimal results.

Despite all of that, power was slightly improved over the carby engine and driveability was a lot better, but fuel economy wasn't that much improved. I thought I'd be getting significant improvements with the EFI over the carby, but with the carby mods that I'd done on the previous engine, the improvements were marginal at best with the EFI. So if anyone says that you'll be getting 20% fuel reduction with a piggyback system, take big steps backwards, because nothing will provide those sorts of fuel improvements, moreso because you're running LPG and petrol (both require different tuning).

A Scangauge is a great investment, but it won't work with a TB45, but I believe that the ECUtalk will and provides a lot more info than the Scangauge.

Cheers

Ray