Evolution Chip.. Experiences?

So I have had my 2.5DT since Friday night and have decided that I love it, but.. it's underpowered. fine(ish) on the flat but needs more oomph for the hills on my journey to work... So..

The garage around the corner (we do their printing and uniform) was at our trade counter and spotted my shiny new Rangie and said he did Evolution chips for TD rangies.

Range Rover Turbo Diesel Remapping And Tuning- Evolution Chips.

I went round today on the pretence of getting him to sign off a proof and got him to go over the figures. Looks like 30+bhp increase and torque goes up by 100. - All this and supposedly an increase in fuel economy..

Does anyone have any experience with the Evolution chip for the M51? Did it make a big difference? Or are there any recommendations for chips for the 2.5DT.

Any help would be appreciated on this. looks like it's gonna cost me £315 (with a discount) so I want to make sure it is worth doing, even though it comes with a 7 day money back deal.

The only way to give it 30 more BHP is to increase the fueling. The only way to increase the torque is to increase the fueling. And that will increase fuel economy? Think about it.

They do increase performance and torque, but also increase fuel consumption even though your dash display will say otherwise
it works by adding fuel that your becm dont know about
also if you tow the increased torque could destroy your auto gearbox!

gfromleeds said:

They do increase performance and torque, but also increase fuel consumption even though your dash display will say otherwise
it works by adding fuel that your becm dont know about
also if you tow the increased torque could destroy your auto gearbox!

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Drive it like a nun and the more linear map may give you a couple of miles per gallon. Use the power use the fuel. Simples.

Thinking I have a 7 day money back guarantee. so will take it to the red - put in £50 and see how many miles it gets me, I know how many I get back to the red this week. so. will see I spose.

Go for it but just rememver it'll have more torque than it was designed to have so if your ever towing dont boot it off the lights cos you might end up leaving the gearbox behind

Is that not like £300 to dear!!!

EndTuning - TDS Chips for M51/M41 engines

gearbox!!

galavanting shafts? giggliing pins?

myfirstl322 said:

galavanting shafts? giggliing pins?

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May also compromise the rotating ratchet barrel central fulcrum pin joint.

That seems to be a lot of "againsts"

Surely 30 more hp and 100 more NM couldn't kill anything...its still less than a 4.6 came with.

Not that Ive bought a chip yet!! Have to find the ecu first

EeEk said:

That seems to be a lot of "againsts"

Surely 30 more hp and 100 more NM couldn't kill anything...its still less than a 4.6 came with.

Not that Ive bought a chip yet!! Have to find the ecu first

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But then the 4.6 has a half-decent transmission the disease(al) doesn't.

Take heed from a fellow famous Scot "She canna take it captain".

And then the whole issue with your insurance company assuming you declare it and all the issues with your insurance company if you don't!

NikTheGeek said:

And then the whole issue with your insurance company assuming you declare it and all the issues with your insurance company if you don't!

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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)

Load of bollocks with gearbox unless it is on it's last legs. Diesel when chipped will have less BHP than and about the same torque as every 4.0 litre petrol that uses the same box. Why don't they all knacker the boxes up?

wammers said:

Load of bollocks with gearbox unless it is on it's last legs. Diesel when chipped will have less BHP than and about the same torque as every 4.0 litre petrol that uses the same box. Why don't they all knacker the boxes up?

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The figure I had for the chipped diesel put it over the torque limit for the HP22. The main problem is that the box relies on a torque reduction command from the box when a shift is going to occur, Power Boxes and the like negate this torque reduction.

Datatek said:

The figure I had for the chipped diesel put it over the torque limit for the HP22. The main problem is that the box relies on a torque reduction command from the box when a shift is going to occur, Power Boxes and the like negate this torque reduction.

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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.

So why is it that so many more gearbox failures occur on the diesel than on the 4.0?

Datatek said:

So why is it that so many more gearbox failures occur on the diesel than on the 4.0?

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Maybe because max torque is delivered at a lower RPM. Or as i said before people fitting power boxes to cars with badly maintained boxes. On a motor that it is or has been used for towing without regular oil changes, box wear will be greater. A power box would maybe tip it over the edge. Realistically how many cars do you think have had the gearbox oil/filter changed at all since they came out of warranty and into the average users hands?

I think a lot depends on how well you look after your vehicle and also how you drive. My 2.5 is coming up to 134,000 miles, I've owned it for 5 years and put on 50,000 miles since buying it. I've used a power box from the start and about 18 months ago had it remapped. I regularly tow a large 6 berth caravan but don't drive like an idiot, what is good is that I am able to maintain a constant 55-60 mph with little effort. I have had the gearbox oil changed recently and the engine oil I change every 6,000 miles. It is a good example and was well maintained by previous owner so I am sure that helps. Fuel consumption is around 21 mpg overall (but my average speed is also only 21 mph) - don't believe the computer though because it lies
I too have read all the negative reports but have decided it's worth the gamble taking in to consideration the quality of my vehicle. In 5 years I have had very few of the problems reported as regular occurrences on this forum - just normal wear and tear.
There is some very good advice and help (and experience) on this forum, heed it and be sensible.