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Author Reliability Of Re-Mapped Diesels
mattk
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Registered: 27th Feb 06
Location: St. Helens
User status: Offline
15th Nov 08 at 17:28   View User's Profile U2U Member Reply With Quote

I know I have a Fiat but stick with it, If I ask this on FiatFroum it will get deleted because there are so many threads on it ( but no clear cut answers! )

Ive managed to talk my self into a re-map today but I then came hom to the internet and read a few (shite) threads on re-maps with storys of turbos blowing up and clutches being destroyed and started to wonder, is it the people that drive the cars to blame or is it really that dangerous to go past the manufactures parameters and give a 130bhp engine ~170bhp?

Im thinking its more the drivers that are driving their cars and using all that freed up power and torque ALL the time and driving with no mechanical sympathy at all, I drive my car with sympathy and do the usual no going past 2k for the first 10 mins, let it cool down after a long journey ect and post map Id probably do oil changes alot more frequently

come on...... Talk me into / out of it
Warren G
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Registered: 14th May 06
Location: Kent
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15th Nov 08 at 17:30   View User's Profile U2U Member Reply With Quote

cluthes cant last with the torque! when remapped they can be put under massive stress along with other things

richc
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Registered: 24th Mar 07
Location: Ilkeston
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15th Nov 08 at 17:36   View User's Profile U2U Member Reply With Quote

Why do people let there engines 'cool' down after a journey or something? What does this do? All i can gather is that your engine gets hotter and your oil thins out in my eyes.

Clutch, yes stress. But i think how you drive em depends on there life expentancy. Dont sit on bite point on a hill in traffic etc. And pull off gently on the clutch and then boot it

Just dont drive on full boost for like first 3 miles of driving at most in a modern diesel (fuel oily anyway) and drive it how you want.

Ben G
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Registered: 12th Jan 07
Location: Essex
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15th Nov 08 at 17:37   View User's Profile U2U Member Reply With Quote

oil in the turbo richc
Colin
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Registered: 4th Apr 02
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15th Nov 08 at 17:37   View User's Profile U2U Member Reply With Quote

Car will be relaible but the car will no doubt be heavier on clutches, brakes & tyres etc Turbo might have a shorter lifespan also.
Warren G
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Registered: 14th May 06
Location: Kent
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15th Nov 08 at 17:39   View User's Profile U2U Member Reply With Quote

let the oil drain out of the turbo and let it cool down slowly

what engine? they use the same in the vauxhalls

1.3's are just shite.

1.9's are quick, and remapped
Rich H
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Registered: 26th Oct 05
Location: West Sussex Drives: E46 M3
User status: Offline
15th Nov 08 at 17:40   View User's Profile U2U Member Reply With Quote

I'm going to be having my van remapped soon by a guy who has done thousands of remaps - the forum I found him via is a Transit forum which he has remapped a good percentage of their vans for them, and none of them have had a problem, so I'm going to bite the bullet and go for it lol.

That's an upgrade of 75ps to 95ps and a gain of around 10% mpg per tank for £250 - sounds fair to me!
mattk
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Registered: 27th Feb 06
Location: St. Helens
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15th Nov 08 at 17:40   View User's Profile U2U Member Reply With Quote

I dont boot it off the line cause its wank off the line anyway when I say cool down I mean I leave it to tick for a min or two max, cant really remember the last time I went over 3k in it because there is no power up there anyway,

fuck it I might just book it in
RS6
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Registered: 5th Nov 03
Location: with MJ
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15th Nov 08 at 17:41   View User's Profile U2U Member Reply With Quote

your cars new enough should be fine
Twiggy
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Registered: 15th Oct 04
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15th Nov 08 at 17:45   View User's Profile U2U Member Reply With Quote

I think if it was a mild map then fine.... if your going from 130 - 170 i think there maybe issues
mattk
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Registered: 27th Feb 06
Location: St. Helens
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15th Nov 08 at 17:48   View User's Profile U2U Member Reply With Quote

170 is slightly more than mild, there is one been done that is over 200bhp and 2 on there that are 195, most are 170 - 180, Id be more than happy with 170

although on did make 150, they tried to get more but couldnt
Bonney
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Registered: 14th Nov 04
Location: St Helens
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15th Nov 08 at 17:50   View User's Profile U2U Member Reply With Quote

just get a mild map, nothing too daft and it will be fine.


You drive like a girl anyway
John
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Registered: 30th Jun 03
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15th Nov 08 at 17:51   View User's Profile U2U Member Reply With Quote

My fabia gave a slight bit of slip when I first got my map, cured itself though.

130-170 isn't that much on the engine's in question, but yes it is the torque that kills the clutch not the power.

I've not heard of anybody thats damaged an engine from one.
Colin
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Registered: 4th Apr 02
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15th Nov 08 at 17:54   View User's Profile U2U Member Reply With Quote

Just get it done, if the clutch gives up replace it with an uprated one!!
Warren G
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Registered: 14th May 06
Location: Kent
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15th Nov 08 at 17:54   View User's Profile U2U Member Reply With Quote

what engine is it?
mattk
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Registered: 27th Feb 06
Location: St. Helens
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15th Nov 08 at 17:55   View User's Profile U2U Member Reply With Quote

1.9JTD 130bhp 8 valve
Kurt
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Registered: 23rd Oct 05
Location: Hi
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15th Nov 08 at 17:58   View User's Profile U2U Member Reply With Quote

Matt
Warren G
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Registered: 14th May 06
Location: Kent
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15th Nov 08 at 17:58   View User's Profile U2U Member Reply With Quote

must be the same as the vx 1.9cdti 8v 120bhp

dont they do the 16v 150bhp version?

Mattb
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Registered: 2nd Feb 03
Location: Under your sisters bed
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15th Nov 08 at 17:58   View User's Profile U2U Member Reply With Quote

The only problems i have seen with remapped diesels is particulate filters becomming clogged up (VAG btw) refused a couple of cars now for warrenty work of this nature due to remaps..
mattk
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Registered: 27th Feb 06
Location: St. Helens
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15th Nov 08 at 18:00   View User's Profile U2U Member Reply With Quote

the 150 16v isnt availible in the punto, they put that in the Bravo, and the 120 8 valve go in the non sporting puntos

I didnt think about the DPF
mk4_astra
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Registered: 15th Oct 03
Location: aylesbury,bucks
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15th Nov 08 at 18:00   View User's Profile U2U Member Reply With Quote

there was a big thread like this on pistonheads and although alot of people said remaps cause more stress on internals etc the general opinion from owners of remapped cars was that if your careful your car should be no less reliable.

just things like clutches, front tyres, brakes etc are going to wear down/need replacing quicker and servicing your car more often than you do now is probably best aswell
John
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Registered: 30th Jun 03
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15th Nov 08 at 18:01   View User's Profile U2U Member Reply With Quote

Do you have a dpf matt?
mattk
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Registered: 27th Feb 06
Location: St. Helens
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15th Nov 08 at 18:02   View User's Profile U2U Member Reply With Quote

yeah I have a dpf

im not too bothered about tyres and brakes as they are consumables anyway, I know clutches are too but their expensive
John
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Registered: 30th Jun 03
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15th Nov 08 at 18:03   View User's Profile U2U Member Reply With Quote

If you're worried about the clutch just get a map that doesn't give you all the torque in one lump at the start.
Mertin
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Registered: 12th Oct 05
Location: Scotland
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15th Nov 08 at 18:03   View User's Profile U2U Member Reply With Quote

quote:
Originally posted by Mattb
The only problems i have seen with remapped diesels is particulate filters becomming clogged up (VAG btw) refused a couple of cars now for warrenty work of this nature due to remaps..


Is that a filter in the exhaust iirc?

Revo remaps for the vag 130 engine give 280 lb/ft of torque. Anymore than 300 and it'll be clutch replacement time.

If you go for a well known brand im sure the map will be designed so that it doesnt put the engine/clutch/turbo under major stress

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