[NikTheGeek]

Though I doubt they'd go as far as strip an ecu, read the chip and compare it against a stadard map and I'd also deny all knowledge...

Ah, fair enough. I assumed it was a box that connected (and therefore obvious) rather than a remap...

 

[Datatek]

No problem with my insurance...its trade for any vehicle

Though I doubt they'd go as far as strip an ecu, read the chip and compare it against a stadard map and I'd also deny all knowledge...



(posted by a hacker trying to frame EeEk)

Ignorance is no defence in the eyes of the law and no need to compare maps as if the chip has been changed or piggy backed it's obvious.

 

[EeEk]

An internal chip is not that obvious...its 2 layers deep inside the ecu....and looks just like the chip you swap it with. A remap is even less obvious as its on the original chip.

Ok external chips will be easy spotted but unless your dead, (you wont be too bothered if you are) youd be stupid not to take it off before an insurance assessor showed up....along with all the other bits and the bald tyres

Anyway back to all the wirry bits exploding...

My p38 is manual So looks like it wont self destruct up as soon as I take the chip out the packet

 

[Datatek]

An internal chip is not that obvious...its 2 layers deep inside the ecu....and looks just like the chip you swap it with. A remap is even less obvious as its on the original chip.

Ok external chips will be easy spotted but unless your dead, (you wont be too bothered if you are) youd be stupid not to take it off before an insurance assessor showed up....along with all the other bits and the bald tyres

Anyway back to all the wirry bits exploding...

My p38 is manual So looks like it wont self destruct up as soon as I take the chip out the packet

You can't remap the original chip on a P38.

 

[Datatek]

It must be over the limit for the standard 4.0 litre also then. Standard 190 BHP and 320 Nm. Don't know how a power box negates torque reduction to be honest. The torque reduction is a function of the gearbox ECU and the ECM, the gearbox ECU will not allow the change until conformation of torque reduction has been received from the ECM. All the power box does is increase fuel % requested by the ECM at any given throttle demand. Therefore the power box is just following the ECM and adding a % of fuel. The torque reduction will be a slight reduction in fuel so the power box should follow whatever the ECM does. There would still be more fuel for that particular throttle setting but it still should reduce in a linear fashion. Unless you are saying the power box has a specific function to block torque reduction. Which i doubt. I Still think most of the problems are people fitting power boxes to cars with badly maintained boxes.

A 20% drop in torque from standard is not the same as a 20% drop from the substantially increased torque available from a power box or remap, in fact the drop with a power box brings the torque down to the normal full torque of the standard set up thus effectively negating the benefit.
If maintenance was the problem, it would also affect the 4.0.

 

[wammers]

A 20% drop in torque from standard is not the same as a 20% drop from the substantially increased torque available from a power box or remap, in fact the drop with a power box brings the torque down to the normal full torque of the standard set up thus effectively negating the benefit.
If maintenance was the problem, it would also affect the 4.0.

But the 4.0 litre runs at the enhanced powerbox torque level of the diesel as standard with 25 to 30 more BHP. Over a wider rev range. So will be applying the same loads, if not more standard as the chipped diesel does. Without knackering boxes out of hand. There has to be another reason if diesels shred boxes. Maybe a combination of poor maintenance and the differing ECU mapping who knows? It's a debate you can have forever without coming to a conclusion. Only thing i know is that if you fit a turbo to an old knackered engine it won't last long. And there are plenty of chipped diesels, mine for one, that have no gearbox problems.

 

[Datatek]

But the 4.0 litre runs at the enhanced powerbox torque level of the diesel as standard with 25 to 30 more BHP. Over a wider rev range. So will be applying the same loads, if not more standard as the chipped diesel does. Without knackering boxes out of hand. There has to be another reason if diesels shred boxes. Maybe a combination of poor maintenance and the differing ECU mapping who knows? It's a debate you can have forever without coming to a conclusion. Only thing i know is that if you fit a turbo to an old knackered engine it won't last long. And there are plenty of chipped diesels, mine for one, that have no gearbox problems.

But you don't go anywhere in yours.
The 4.0V8 develops 320Nm at 2600, a chipped diesel, depending on the map or Power box develops 319Nm or more at 2000 or less. The 4.0 has torque reduction that brings the shifts within limits, a chipped diesel is out of limits on shifts. Box limit according to the figures I have is 300Nm.
You only have to look at the number of diesel reporting gearbox problems to see that the diesel torque curve is more destructive, there are hardly any reports of gearbox problems on the 4.0.
An agravating factor is that a disproportianate number of diesels are used for towing.

 

[wammers]

I go to the shops now and again and to Manchester airport a couple of times a year what more do you want.