[Nismo]

Do you think if I take it some place like Dastek, won't they be able to see something on their dyno?

They said it is R250 for a diagnostic dyno...

[4ePikanini]

I'm sure a dyno place will only measure the output of the motor. For them to "tune" it they will either need a Mitsu MUTT tool or they will recommend a chip so they can bypass and edit the standard mitsu map on the ecu.

There is no advanced dyno company in East London so that option is not available to me.

I don't want more power, I want economy.

[Nismo]

I also don't need more power, I will maybe try to take it next month so that they can diagnose it on their dyno. Maybe they will see where the issue is.

R250 is not too bad.

[4ePikanini]

My gauge is now at the blue line after 520km (includes a bit of off roading), where it used to be at the red line after 520km.

Time will tell with the next fill up what difference it has made.

On top of that the center silencer box is getting the boot soon and the air filter is also due.

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[Nismo]

That looks like good news, can't wait for another tank....

If it works I will have to do starter motor, coolant sensor and PUMP ADVANCE...

Then I'll give up on consumption.

[HBannink]

I don't know why but I almost feel like a spectator at a sports meet.

Go marius go

[4ePikanini]

I don't know why but I almost feel like a spectator at a sports meet.

Go marius go

hehe.

It comes at a price!

I'm heading into uncharted territory. I have not seen anybody document pump advancement on the 4m41.

On the one hand my engine sounds healthy and it makes logical sense to me that everything should be good. Even dad said it sounded more like his and sounds good. It also sounds similar to my ears to the other 3.2's I hear in the street and on videos.

But on the other hand is that irrational voice saying you messed with it and it's going to break tomorrow, and with my more than usual paranoid mind (due to my history with cars where something breaks often) I am still a bit nervous when driving around, although I have done 2 full tanks and have not seen any ill effects other than a bit of extra noise (which sounds good to my logical mind) and a saving on fuel.

It definitely has more power according to my butt dyno as well as the torque converter staying locked up better now. I can thus safely deduce that it isn't too advanced, and wasting fuel by pushing the piston down while it's still trying to come up on the compression stroke....... but that irrational voice......

[GertM]

At best my fuel gauge was halfway at 300km so I'll see where it is this time round. If this advance does what I hope it will and gives me close to 10-10.5l/100km then I should see 400km or more at the halfway mark.

Marius,
Sorry for the late reply. At my last fill-up, while only driving in town, I got 320 km on a half tank, indicated.
That equates to 7.9 km/l or 12.6 l/100 km. I must say, I was driving like a gentleman!. Otherwise, I get between 7.2 and 7.5 km/l in town.

When last I went to Kimberley, the consumption was 11.4 km/l going there and coming back 10.2 km/l. We had to go to Bloemfontein from Kimberley and the round trip was 11.0 km/l.
As I mentioned previously, my speed on the open road is just over 120 km/h to enable the TC to lock, and which is a true 117 km/h according to the gps.

[4ePikanini]

Thanks for your feedback, however I suspect the SWB tank and consumption will differ from the LWB.

It's looking good so far. I have also done the wastegate spacer mod in the meantime to up the boost a bit compensating for the age of the diaphragm spring. It seems good as the CEL hasn't come on yet. Can feel a small difference in power and TC stays locked up even more now.

[andrew.ashton]

HI Marius,

I don't know if this is marketing blurb or diesel fact (i.e. something to learn from) - from http://www.chipit.com.au/cars/pajero/?s ... models=740

... it seems Mitsubishi are not looking so much for a blocked state via pressure sensors but initiate a “post burn injection” (PBI) at a certain number of engine hours or kms. (i.e. every 400kms).

This means that removing the core will not gain the benefit of added fuel economy like we see in the NS since the NS initiates a PBI when the filter is partly blocked.

I am not advocating the chipping, but having blanked the EGR on the 4M41 is there then a way of eliminating this PBI, without performance chipping, to improve consumption?