Tuning 1.3 d multi jet remap

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Tuning 1.3 d multi jet remap

I have a 2008 multijet which would have been the 75bhp model however there was an engine failure after 3 years and just 23,000 miles when the car was owned by the previous keeper. The engine was replaced under warranty and I contacted the dealer who did the change and they confirmed that it was a 95bhp engine that they fitted as the 75bhp was no longer available. As I understand it however the clutch was not uprated nor the powertrain so either I may have issues in the future & they were just doing the absolute minimum or the ratings & tolerances will be fine.
Either way, I guess I should not do any more performance mods - I have a K&N panel filter and a free flowing exhaust already. I am very happy with performance & economy but there's always room for improvement!

Correction on the gearbox.
C510 for the MJ I
C510R for the MJ II

If you've got the MJ II engine and the drivetrain off the MJ I I would probably keep clear of a tuning box.

Are there any insurance implications with the engine change even though it was done by the dealer ?

Would the more powerful engine justify the bigger brakes ?
 
Correction on the gearbox.
C510 for the MJ I
C510R for the MJ II

If you've got the MJ II engine and the drivetrain off the MJ I I would probably keep clear of a tuning box.

Are there any insurance implications with the engine change even though it was done by the dealer ?

Would the more powerful engine justify the bigger brakes ?


Thanks for the clarifications & both good questions to which I don't have the answers right now.
Brakes wise, I have just changed the discs & pads and they seem good to me but as for the insurance, that could be a can of worms ...
 
I have a 2008 multijet which would have been the 75bhp model however there was an engine failure after 3 years and just 23,000 miles when the car was owned by the previous keeper. The engine was replaced under warranty and I contacted the dealer who did the change and they confirmed that it was a 95bhp engine that they fitted as the 75bhp was no longer available. As I understand it however the clutch was not uprated nor the powertrain so either I may have issues in the future & they were just doing the absolute minimum or the ratings & tolerances will be fine.
Either way, I guess I should not do any more performance mods - I have a K&N panel filter and a free flowing exhaust already. I am very happy with performance & economy but there's always room for improvement!


???? i think you have been fed a load of hogwash. Fiat are quite capable of still sending out today a 75bhp rated engine today.
If the garage had fitted a 90 or 95 bhp version engine instead of the 75bhp
version they would be leaving themselves open to more out of warranty claims due to not updating the drive-train as it really is not likely to be the same. Also what about your VED? are the 75/90 in the same group? your V5 should have any engine change down and the co rating is specific to each bhp car.....

just done a check both the punto and panda still use the 75bhp engine in Italy
 
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Almost certainly correct, I'm sure when I had my 75BHP 500 and was looking to change to the 95BHP or a TA I was told that there were a few differences apart from the mapping, Injectors seem to ring a bell.

Of course, if it was a brand new engine, it might have been a full engine complete with all ancillaries, exactly as ready to go straight into a new car.

The turbo is also different the 95 being variable geometry too.
 
The turbo is also different the 95 being variable geometry too.

There's a post by dannyboy in the Panda section on the differences between the turbo used on the 75bhp verus the 90bhp - it may also apply to the 500...
https://www.fiatforum.com/panda/107689-multijet-turbo-upgrade.html?p=1142216

Previous discussion on the use of the word variable....
https://www.fiatforum.com/abarth-500/275944-top-gear-more-6.html?p=2812795

On a PM on the FF understand that the MJ I (75bhp) can't use a tuning box.
 
anyone tell me how the engines perform against each other? Is the 95 worth spending a bit more on? Better response? More torque? I'm after good MPG after my gas guzzling Audi TT but I'm not sure whether I can cope going from 270bhp to 75 :)
 
An update.

The clutch, well the release bearing, failed after 176 000 miles. There was loads of meat left on the clutch. It was probably good for another 100 000 miles.
 
Ah :) Dunno why I thought it was the Abarth one.

As I said before I wouldn't be so sure about the box and clutch, the Panda has the same box and clutch IIRC and they seem to be quite near their limits judging by the issues people are having in there.

Linky. Lewey is a very knowledgeable guy and if the 95bhp 500 uses a different box then it does so for good reason.

https://www.fiatforum.com/panda/270627-diesel-tuning-box-clutch-slip.html?p=2767114

*snigger* well that's me proven wrong in this instance!
 
That must be one of the highest mileage 500s on here- any other problems of note?
Thing is Ian has done 35,200 miles in his car per year which suggests that it spends most of its time on the motorway getting up to temperature and running there for a while. If you divide his mileage up it equals about 100 miles per day 7 days a week 365 days a year.


The cars which are more likely to have issues are the ones that are driven around town over fairly short distances, never get warmed up, get driven up kerbs, speedbumps and potholes. Ian has probably never really done those things. Similarly my car has done almost 65k miles with practically no issues because I don't live in a city or an area with really poor roads.
 
Thing is Ian has done 35,200 miles in his car per year which suggests that it spends most of its time on the motorway getting up to temperature and running there for a while.

The cars which are more likely to have issues are the ones that are driven around town over fairly short distances, never get warmed up, get driven up kerbs, speedbumps and potholes.

:yeahthat:

Secondhand car buyers pay far too much attention to how many miles a car has covered, and far too little attention to how those miles were driven and how it has been serviced and cared for.
 
Thing is Ian has done 35,200 miles in his car per year which suggests that it spends most of its time on the motorway getting up to temperature and running there for a while. If you divide his mileage up it equals about 100 miles per day 7 days a week 365 days a year.


The cars which are more likely to have issues are the ones that are driven around town over fairly short distances, never get warmed up, get driven up kerbs, speedbumps and potholes. Ian has probably never really done those things. Similarly my car has done almost 65k miles with practically no issues because I don't live in a city or an area with really poor roads.

This is of course true, but I thought it might be interesting none the less.
 
:yeahthat:

Secondhand car buyers pay far too much attention to how many miles a car has covered, and far too little attention to how those miles were driven and how it has been serviced and cared for.


Spot on jrkitching. My car feels really sad and miserable in the town. On the long drives it becomes very happy, no matter what I throw at it in terms of revs. It drank 0.3 lts of oil in the past 1000 km or so as I was driving very hard over long distances through mountains and the like. After I put some oil in the engine sounded much happier, no more 'sad' noises when I let go of the throttle at 3,000 kms (which is my usual indicator the oil is below the max mark funny enough)
 
Indeed. I live 3 miles from the M1 and work 2 miles from the M25 so the vast majority is at Motorway cruising speed, so I rarely change gear.
 
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