Agree.
But aftermarket ECUs with tuning are available, at ££££££
Who knows until you check? if it was a well looked after car it could be fine.
J
P38A Tuning the 4.0 thor
- Thread starter LR-hobbs
- Start date
This site contains affiliate links for which LandyZone may be compensated if you make a purchase.
But aftermarket ECUs with tuning are available, at ££££££
Who knows until you check? if it was a well looked after car it could be fine.
J
- Posts
- 37,249
- Location
- North Shropshire
you can measure compression and valve lift, but even that doesnt tell you the state of the surface of the cams, or if the lifters are turning properly.
if its been looked after then its probably been fed 10W40 fully synth.. which isnt good for flat tappets, generally doesnt have the required high pressure film strength which is why we see them wearing out
Datatek
Well-Known Member
- Posts
- 46,105
- Location
- Near Poitiers SW France
It's not an EEPROM I suspect, it's actually a one time programmable ROM so cannot be altered.
- Posts
- 37,249
- Location
- North Shropshire
Sorry the tornado chip is EPROM, but that doesn't say what the original chip is
- Posts
- 37,249
- Location
- North Shropshire
actually, see;
RangeRoller dt
Well-Sprung Member
- Posts
- 14,807
- Location
- Trapped inside my head @ LZ asylum
Tornado is the one you want for the doozle. I’d guess they would ‘tune’ it by swapping to a standalone system.
The website is tuners garage, if anyone wants to dive into this a little deeper.You sound like you are jumping in before knowing TBH.
Cam lift can be easliy checked with the right equip and just removing the rocker covers.
If its worn then fine change it. Its a lot of work.
As for tuning the ECU as far as I am aware thats not possible without changing the chips and even then its a set map, or an aftermarket ECU. So would be interested to know if anybody could actually "hack" into the ECU and change settings, gearbox tuning?
I would suggest you have a talk with these people who say they can, and find out how they will empty your wallet.
J
in terms of checking cam lift , how is that done ? I have heard of using some metal in between the cam lifters,
So please post a link, as I can only find a Turners Garage that claim to be able to do it https://www.turners-garage.com/index.php/range-rover/wolds-leading-p38-specialists
As for cam lift, a dial gauge with clamp base would work, mag base would be difficult on a mostly Ali engine.
J
Datatek
Well-Known Member
- Posts
- 46,105
- Location
- Near Poitiers SW France
I was referring to the original chip.
300bhp/ton
Well-Known Member
- Posts
- 5,234
- Location
- Near MK
Don't think a home amateur mechanic is going to easily or reliably measure cam wear tbh. And it won't tell you the state of the lifters.
And even if in perfect condition, an aftermarket cam is going to offer more performance......
I think you can.
Lifters are a different issue.
I never said a different cam would be good or bad, did I?
J
Grrrrrr
Technician, Bodgit & Scarper Ltd
- Posts
- 19,928
- Location
- Buckinghamshire, UK. ('95 DT)
Turners. Don't think they're as well thought of as they used to be. V8 Developments might be worth a look.
Changing the cam is the first job. Easy enough to do if you follow RAVE. After that you can get someone to play with the ECU but think about what characteristics you want in both high and low range and how much fuel you want to burn.
Grrrrrr
Technician, Bodgit & Scarper Ltd
- Posts
- 19,928
- Location
- Buckinghamshire, UK. ('95 DT)
You could put Megasquirt or similar on it and then map whatever you want but it is an awful lot of messing about for a brick of a car.
As you said, there are a few off the shelf cams available that would do the job.
- Posts
- 37,249
- Location
- North Shropshire
The problem is the hardening is less than paper thin and once that goes the rest of the cam goes in 100s of miles
RangeRoller dt
Well-Sprung Member
- Posts
- 14,807
- Location
- Trapped inside my head @ LZ asylum
Weigh it up against the risks/costs of if it goes wrong and see how comfortable you feel. Not the most expensive job for a mechy that knows what he’s looking at. Saying that there’s plenty of good eyes and advice here if you post pics. These vehicles are something you should learn to diy afterall and the members here will guide you through it. Depends how patient/modest/capable you are
300bhp/ton
Well-Known Member
- Posts
- 5,234
- Location
- Near MK
Not to disagree, but Tornados own site says it is worth tuning.....
"However the dominant characteristic is actually a huge hole in the torque curve, centred around 3000 RPM. This is filled in very well with the upgrade, delivering an extra 10-15 lb/ft of torque and much faster throttle response. Economy improvement is 10-15%."
Also, I'm fairly sure Tornado don't use pixie dust or magical toadstools to 'map' the ECU. Therefore it is perfectly reasonable to assume that other people have the same technical abilities as Tornado and that the information and ability is not classified as a National Secret.
FEI
Well-Known Member
- Posts
- 108
Tornado is trying to sell their stuff so of course they are going to say its worth it.
It just makes way more sense to do the cam and ecu at the same time.
Its not a national secret but the knowledge is guarded by a huge amount of man hours to reverse engineer what each bit on that eeprom chip does and which ones to change. Tornado are the only ones i know of that have invested those man hours.
It just makes way more sense to do the cam and ecu at the same time.
Its not a national secret but the knowledge is guarded by a huge amount of man hours to reverse engineer what each bit on that eeprom chip does and which ones to change. Tornado are the only ones i know of that have invested those man hours.
