Pajero Owners Club of South Africa

SimonB wrote:
If you give me 8-10% at 2000-3500 then you'd be talking!

That would be a bit difficult on a multi valve engine, by nature these brutes like to rev high. It would be possible if you bolted one of the low boost superchargers on but cost would be prohibitive

HBannink wrote:
That would be a bit difficult on a multi valve engine, by nature these brutes like to rev high. It would be possible if you bolted one of the low boost superchargers on but cost would be prohibitive

Well that's what I was trying to get at. A chip is not going to get you any useful gains on these motors

Sent from my half-eaten fruity mobile device!

HBannink wrote:
That would be a bit difficult on a multi valve engine, by nature these brutes like to rev high. It would be possible if you bolted one of the low boost superchargers on but cost would be prohibitive

Well that's what I was trying to get at. A chip is not going to get you any useful gains on these motors

Sent from my half-eaten fruity mobile device!

HBannink wrote:

SimonB wrote:
If you give me 8-10% at 2000-3500 then you'd be talking!

That would be a bit difficult on a multi valve engine, by nature these brutes like to rev high. It would be possible if you bolted one of the low boost superchargers on but cost would be prohibitive

Low-boost turbo charger(s) will be considerably cheaper.
.
.
.
.
.
.
.
.
.
.
.
.
.

......... or just buy a diesel !

I must agree on the Chip comments made here although I chipped mine as well.
I was merely looking for better fuel consumtion and little more power in the higher rev ranges as I tow a off road caravan and just need that little extra. If you are planning to race with it maybe a chip is the answer. Fact is as mentioned any multi valve motor operates better at higher revs. I certainly got that little bit extra but I suppose a good dyno and maybe a decent free flow will probably give the same results.

Chipping an engine does exactly what you described here, it would give you better fuel consumption and the increase in power that you described. Adding a free flow and a set of branches would also do similar, combining the two would just have a bigger effect.

One must just be realistic in ones expectation and take the claims of the sales folk with a pinch of salt. Power cost money and when and simple bolt on solutions can only go so far before it becomes crazy. A chip gives a good tuner more parameters to play with and enables him to unlock some more horses from the engine.

The data posted above seems to be a realistic reflection and based on that and the fact that I have a cracked manifold that would be the next upgrade coupled with a free flow and branches.

As a matter of interest I removed my throttle body a couple of weeks back and was horrified at the state of the channels and air passages. After a good soaking in Powertune the engine has the old crispy response and a lot of the horses that bolted are back.

PS If you want silly power strap on a 50 shot nitrous, the results are similar to a high boost turbo and just as dangerous if not done right

ok, not a 3.5, but had a Dastek fitted to my V6 a few years ago, Some info:

Welcome to the new age of tuning computerised vehicles. Over the years the coming of the computer did marvels for the automotive industry. Unfortunately workshops lost all control over the tuning of these vehicles. Even the slightest idling problem cannot be cured by the non-franchised workshop. In most cases even the authorised agents cannot cure these problems. In short, the tuning of computerised vehicles became nearly impossible.

The UNICHIP gives the properly trained technician full control over the timing and mixture functions of most electronically controlled vehicles. Not only can mixtures and timing be set, but also it can be set under various load and RPM conditions. This gives one the ability to optimise the vehicle for economy under light load conditions and set it up for optimum performance under full-throttle conditions.

The UNICHIP is much more than just a "chip". In actual fact it is a fully functioning computer which is added to the vehicle’s existing engine control unit (ECU). Apart from controlling general timing and mixtures it can do idling control, drive extra injectors, take full control over timing functions, eliminate road speed governors etc. It can be accurately described as a "Piggyback" computer.

The UNICHIP gets wired into the existing ECU harness. If it is removed the vehicle is back to standard. Unlike other after-market units if the UNICHIP is programmed with zeros the vehicle will be standard. Only areas where the vehicle isn’t perfect need to be altered.

The main difference between other after-market "chips" and the UNICHIP is that with the UNICHIP every individual vehicle is optimised. It is not just a chip that was made on one particular vehicle and then gets used on other similar vehicles.


For more info, also regarding free flows etc check out www.nicksracing.com

Allow me to add a somewhat negative comment / warning.

When I got my Paj back after the lifters, new plugs and a few other things were done it went like a rocket.
I was driving with a big smile on my face!
But I still had a bee in my bonnet to chip it.

Long story short, after I got it back from chipping I was driving around with a constant frown on my face wondering: is it better, worse or the same.
I know that the mind plays tricks on you when you expected an improvement so I decided to give it a month or so.
In that time I checked the consumption which was not better even a bit. The same actually.
I also got used to the new performance level (or lack thereof) and that is what I wanted so I could compare if ever I had to remove the chip.

Then I happen to read on the net that you get a plug-in to bypass the chip. So this morning I went to buy one from the place who installed the chip.
The result - I found an immediate effect - the rocket and the smile was back.

Someone on here mentioned that the guy programming the chip makes a huge diffrence. Well maybe that is the case.
So either I must take it back (a bit scared to do that) or I must go somewhere else or I must sell the chip again.

Will decide in the days to come but you can imagine I'm not happy at the absolute waste of money.

Cheers

Macjohnw,
I have done the chip thing and have posted previously the results. I just do not how to find it again .
but I am going the Unichip way at their premises as I have Dastek chip now and have Unichip spare to install.
I am not in for speed but a little more torque will be ideal . I will first have to wait as my motor is being rebuilt and have to do about 2000 km before I can do it again.
See the Unichip website for more info.

Sorry look on page three of previous posts.