Technical 1.3 Multijet Engine Specifications

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Technical 1.3 Multijet Engine Specifications

98dizzard

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Hi Guys

I have recently aquired my Grande Punto 1.3 Multijet (75ps) Dynamic. I have now done a few miles in it and the engine is wearing in nicely, and I quite like the car, despite some niggly things to do with change of specifications. However, i was wondering what the Maximum RPM of the 1.3 Multijet (75ps) was as this information seems to be missing in all of the fiat promotional material and I can't seem to find it online. This is just to make sure that i dont go over it while downshifting etc when i start driving a bit less like a granny.

Thanks for any help!
 
Thanks, but its strange, because i emailed fiat uk with the same question at the same time, expecting them to know, but so far after 3 replies all they have told me is the RPM for peak power and peak torque. Even more odd is the fact that in one of the emails they said i should get a 1.9 as this has the highest power output :confused:

The relevance of that peice of information was rather confusing, even more so now that the 1.9 appears to have been removed from their site to make way for the 1.6.
 
1,9 is more satisfactory. In low revs is more reliable. MPG makes just a small difference having more power reserve. Yes, in a ward they are right. My response was based on observation I've made in every day drive tests after fixing.
 
Hi Guys

I have recently aquired my Grande Punto 1.3 Multijet (75ps) Dynamic. I have now done a few miles in it and the engine is wearing in nicely, and I quite like the car, despite some niggly things to do with change of specifications. However, i was wondering what the Maximum RPM of the 1.3 Multijet (75ps) was as this information seems to be missing in all of the fiat promotional material and I can't seem to find it online. This is just to make sure that i dont go over it while downshifting etc when i start driving a bit less like a granny.

Thanks for any help!


Hi mate,

On acceleration/revs, you wont be able to go over the maximum permissible RPM. This is controlled by the ECU and when you reach the maximum permissible RPM the ECU will cut fuel to the injectors. You will feel a noticeable drop in RPM as this occurs. The is a "self preservation" function, which is found on most modern cars fitted with electronically controlled injection systems.

Whilst driving the 1.3 hard, you will find that there is a power band in the rev range, and after you go over this, there will be a loss of power. In order to get best performance, you want ot keep your gear changes within this power band. You will find with the 1.3 that it starts to feel breathless at around 4k rpm, and therefor you are not going to gain anything by staying in the same gear and going past around 4krpm. As you can see, this means that if drien properly, you should be keeping away from the maximum permissible RPM limit.

On down shifting, the only way your really going to hit the limiter, or possibly do damage by going past it, is if your shifting down more than 1 gear at a time from high rpm. For example, going from 70MPH in 5th and changing straight down into 3rd.

As long as your keeping within the power band and changing gear when just outside it, you shouldn't have a problem.

With regards to fiat stating that you should get the 1.9.... I think they have simply misunderstood your question. It soundly like they thought you were saying that you were not happy with the power from your 1.3, hence why they were telling you where the maximum torque and RPM was within the RPM range. Often the e-mails dont go to a Technician, or even anyone that is technically minded!

Alan
 
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Mines been done, I have Just short of 100Bhp and 170ftlb. But that isnt taken to the Max, as I had it remapped for drivability rather than power.

Alan
 
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Mines been done, I have Just short of 100Bhp and 170ftlb. But that isnt taken to the Max, as I had it remapped for drivability rather than power.

Alan

Thanks for the info, I did find out the other day that above 4000rpm theres not much power left.
As for your remap, I assume this was the 75ps version. Did you do any other modifications to get the increase? Where/How much was the remap?

Thanks
 
Brilliant Thanks

By the way, fiat finally responded with:

We are pleased to offer a response to your enquiry regarding the RPM for
the Grande Punto 1.3 Multijet 75bhp.

Our technical team has advised that the engine for this model is limited to
5,600 rpm.
 
strange ! !! even in their performance grafic the curves stops at 4800. same engine speed i've reached with every 75HP I drove. More,... maibe in case of remaping or down hill over 30% angle. they must be ment 4600.
 
Very little point in reving much past 4000/4500, you may as well shift up and take advantage of the extra torque at the lower revs.
Shifting at redline doesnt always give the best acceleration, despite what some people think who have only ever played racing games.
The diesel engines are limited by the speed of the flame front which is why they rev lower than petrols anyway, and why there is such a sharp dropoff at the higher revs. I do like the low end torque of diesels though, i find them much easier to drive. :)
 
Very little point in reving much past 4000/4500, you may as well shift up and take advantage of the extra torque at the lower revs.
Shifting at redline doesnt always give the best acceleration, despite what some people think who have only ever played racing games.
The diesel engines are limited by the speed of the flame front which is why they rev lower than petrols anyway, and why there is such a sharp dropoff at the higher revs. I do like the low end torque of diesels though, i find them much easier to drive. :)

I agree entirely. The 6 speed does little more than 2000rpm at 70mph and the 5 speed will not rev much higher at 70. Maximum torque is at 1750rpm so change up to obtain the biggest kick in your back!
 
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