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Discussion Starter #1
hi Guys,

was just wondering if you lot would be able to give me some basic information on benefits and drawbacks of remapping? i have a giulietta 1.6 jtdm as i do a lot of miles but would like to have a little bit more power.

what does it involve and how does it affect the performance i.e bhp and mpg? anyinformation would be appreciated.
 

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hi Guys,

was just wondering if you lot would be able to give me some basic information on benefits and drawbacks of remapping? i have a giulietta 1.6 jtdm as i do a lot of miles but would like to have a little bit more power.

what does it involve and how does it affect the performance i.e bhp and mpg? anyinformation would be appreciated.
I'd also love any information possible please.
 

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typically on a diesel engine a remap will alter the fuel pressure and turbo pressure along with other little tweaks to give usually pretty good power gains. I don't know about the 1.6jtdms but the 1.9jtdms you can get to go from 150bhp to arounds 190bhp maybe 200 if pushed.

technically any unauthorised modification of the cars computer would void any warrenty you may have, however thats if the remap is ever detected. most would argue that they are very difficult to detect.

if however you are is called in for an ECU firmware upgrade then this would effectively remove and overwrite the remap, unless the remapping company locked the map, which would highlight the modification to the dealer, so its catch 22.

like any remap you should expect power gains as well as a possible gains in MPG. i certainly would expect a drop in MPG from a jtdm engine, although it depends exactly how you have your map setup. you can have maps fine tuned for motorway, trailer / caravan towing max bhp all sorts, depending upon what you want they will alter the settings accordingly.

as always these things are not without risk, there is the added stress that the power and tourque will put on components, so you may wear out drive shafts a bit quicker, clutches will burn out faster, tyres may not last as long and so on.

there are no massive real side affects as you probably won't notice the additional wear rate as it shouldnt be that significant given the expected life of such components but it will happen.

you do also run the risk if the remapping company are not the best out there that they can make a real mess of certain settings causing things like the DPF to block up, EGRs to clogg or overboost errors to trip sending the car into limp mode and causing nightmares but a reputable knowledgable specialist should not have this problem and would certainly help if you did.
 

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You're missing out on a far superior car if you dont IMO

I've remapped every diesel I've ever owned (4 I think...)

The difference between tuners and 'downloaders' is big though! Only go to the pucker guys.... Two companies spring to mind... Do a quick search
 

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Discussion Starter #5
thanks for the detailed response artermis, sounds all a bit too much really for the time being, think i will wait a while, see if there are any giuliettas done in the mean time!!
 

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With Turbo cars, the very large gains would worry me drivetrain wise.
 
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thanks for the detailed response artermis, sounds all a bit too much really for the time being, think i will wait a while, see if there are any giuliettas done in the mean time!!
I wouldn't worry about it too much about waiting for it to be done on the 'G' as that engine has been knocking around for quite a while now in other Fiat cars such as the Punto.

I would have got my 1.6 done if I thought the brakes could cope with it.
 
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what do you mean bootsock? why do you think your breaks wouldnt cope with it?
Because the brakes on the 1.6 Mito are really underpowered, I wouldn't be happy to increase the power without doing some work on the brakes as it just wouldn't have the stopping power.

Given the cost to do both, it wasn't really worth doing especially given that the car still wouldn't be that exciting.

Saying that, I think the 'G' possibly has larger brakes as standard, if you are happy with them now, then they will probably be fine after a remap. :)
 

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the 1.6 JTDm is basically a downsized 1.9, and this means it's very capable for big power. So capable in fact that Alfa decided to put a restrictor in the intake.. with the intake restriction removed 150+ bhp is quite possible and it'll be virtually smokeless even without a dpf...
 

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Discussion Starter #15
thanks Cuore sportivo 155, that sounds like a good option. would i have to inform insurers etc and are there any negative affects of removing the restricter? my car knowledge is relatively non existent!
 

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thanks Cuore sportivo 155, that sounds like a good option. would i have to inform insurers etc and are there any negative affects of removing the restricter? my car knowledge is relatively non existent!
Technically yes all modifications must be disclosed to your insurers. As to how many people own up to a remap I'd guess a very very small percentage as it's very difficult to detect. With respect to DPF removal this is perhaps a little more obvious to the trained eye but I'd still suggest most people would not disclose this.

That said I am sure you could argue that it was the cheaper option for a repair than replacing a failed DPF an that you didn't realise you needed to inform them
 

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Discussion Starter #17
cheers chrisyoung uk putting insurers aside is removing the restrictor worthwhile, would it make a noticeable difference and is there anything i should be wary of with removing it?
 

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5 hours work or so :)

the MiTo gearbox is only meant for 320 Nm, the clutch for 360 Nm... so torque will need limiting after remapping... however this doesn't have to mean you can't get a lot of power..

check the numbers here: Squadra Tuning

the guilietta 1.6 JTD has a wastegated turbo, and isn't capable of the same output as the MiTo

guilietta numbers here: http://squadra-tuning.nl/NL/alfa/mito/mito_16_jtdm_16v.html
 

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cheers chrisyoung uk putting insurers aside is removing the restrictor worthwhile, would it make a noticeable difference and is there anything i should be wary of with removing it?
The consensus on here is yes, mine goes in Monday so I'll let you know then :)
 
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