Bromsgrove Defender
Well-Known Member
At a rough guess it's cos it's a BMW engine
However we are still talking about a Range Rover P38 which is a Landrover related vehicle as opposed to an X5 which isn't......
Did that help?
At a rough guess it's cos it's a BMW engine
However we are still talking about a Range Rover P38 which is a Landrover related vehicle as opposed to an X5 which isn't......
Did that help?
It is indeed a BMW engine. But that does not matter, unfortunatly how the turbo works does. The BMW engine in questions EDC and turbo control is pretty basic and does not have an electrically controlled waste gate. It is pneumatic so what you described cannot happen. By the way the turbo boost is not altered to suit the fuel being injected. The fuel injected is change to suit turbo boost. As it is in all fuel injected turbo engines. A little more study required me thinks. Don't try to teach your granny how to suck eggs.
It is indeed a BMW engine. But that does not matter, unfortunatly how the turbo works does. The BMW engine in questions EDC and turbo control is pretty basic and does not have an electrically controlled waste gate. It is pneumatic so what you described cannot happen. By the way the turbo boost is not altered to suit the fuel being injected. The fuel injected is change to suit turbo boost. As it is in all fuel injected turbo engines. A little more study required me thinks. Don't try to teach your granny how to suck eggs.
Shall we agree to dissagree?
You won't convince me and I am going to go out on a limb and say you are not about to change your mind either.
But I know I'm right.
Oh you do, do you. As i said more reading required. Don't worry about it, it's people like you who keep people like me well off. It's a novel idea that the ECU increases the turbo pressure to the correct level to produce a 14 to 1 ratio. Rather than adjusting the fuel quantity to the measured manifold pressure. How long do you think that would take, and how much lag would you have, a little impractical don't you think? As i say, go and have another read.
people like me.
Love it. Patronising and condescending at the same time.
I'm sure you are far more mechanically and technically minded than I am, the amount of answers you provide on the forum show you know your stuff. I only have what I have seen on the computers and the Dyno and the literature provided when I bought to go on.
really now, shall we leave it?
Yeah we can do. All i am trying to say is don't believe everything you read in manufaturers bumf that's all. Sorry if you find the truth patronising. You tried to lecture me on how a turbo works. You then say that turbo boost is adjusted by the ECU to match fuel quantity. When it is the other way round. There is nothing wrong in having limited mechanical knowledge and a thirst for more. But a little knowledge is a dangerous thing sometimes. Good luck with your bolt on parts, but don't be surprised if they go tits up and you have to take your car to someone like me, who i am sure will be happy to relieve you of lots of gold bars to make it work. PAX.
Yeah we can do. All i am trying to say is don't believe everything you read in manufaturers bumf that's all. Sorry if you find the truth patronising. You tried to lecture me on how a turbo works. You then say that turbo boost is adjusted by the ECU to match fuel quantity. When it is the other way round. There is nothing wrong in having limited mechanical knowledge and a thirst for more. But a little knowledge is a dangerous thing sometimes. Good luck with your bolt on parts, but don't be surprised if they go tits up and you have to take your car to someone like me, who i am sure will be happy to relieve you of lots of gold bars to make it work. PAX.
The truth isn't patronising just your turn of phrase a little, and I agree a little knowledge can be dangerous.
I never said the ecu adjusted the boost to match fuel. I said the ECU was electronically controlling the level of boost. That is the way it was described and explained, even if it is wrong. If it is simply because of more fuel and the knock on effect is the turbo working harder, then so be it. I can understand that. A good marketing ploy is then to say that the map 'turns up the Turbo.
The interesting thing is there is actually something we agree on. If you go back to the original post you will see I am saying it is having an adverse affect on the gearbox and wear parts such as the clutch in the manual I had.
One thing though, there are no bolt on parts. It is pure magic.
I look forward to learning more over the coming weeks and months when the BiTurbo upgrade is added to the stainless steel exhaust system the sales guy told me will make the P38 climb mountains.
(No more talk of X5s..)
Fur Trapper
Banned
Takson; your eyes one day will soon be opened wide.Salesman are trained to take your money without you ever knowing it. Where is the larger inner cooler, larger transmission cooler. up grade all your u/j's to the best quality you can buy{ not 6 quid ebay crap)Change your transmission and torque convertor oils and transmission filter? You need to learn to walk first, before you run. with good luck and deep pockets you will have fun. PS> ecu does not control the turbo, exhaust gas pressure controls it
Who said anything about the ECU controlling the Turbo.....what a numb nuts.
3 cars later, no end of pub talk about turbo winding up and I have been a salesmans dream.
List of mods to the P38 so are are
new oil.
New Filter
Grease where grease should be put
was going to have a new set of air filters put in for the suspension but they are already replaced before I found it, along with a recent pump, ride height sensor and a front left suspension air bag.
Diff oil on order along with a new pair of brake disks and pads for the front.
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I have to dissagree with the Only Fuel statement pretty strongly. I can't speak for a power box on a P38 as I have never fitted one, but a remap on a turbo diesel works in the following way.
The ECU controls all elements we are talking about. Fuel, boost pressure and turbo initiating settings.
The remap does the following. lowers the initial turbo 'switch on' by somewhere between 2 and 500 revs, model depending.
on a variable speed turbo, such as on the X5, it increases the turbo spin rate for a given revs, probably mostly as a direct result of initiating it sooner.
increases the peak boost level achievable, to match the additional fuel being fed.
By simply throwing more diesel into the cylinders you would not achieve the the power gains you can get.
Now, it may be different using an inline power box, that I don't know, but a true ECU remap done on a rolling road like Evolve Automotive do does more than just fuel.
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Above your first post see highlights in red and blue.
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Below your later statements saying you did not say what you said above.
Colour coded for easy identification.
Who said anything about the ECU controlling the Turbo.....what a numb nuts.
I never said the ecu adjusted the boost to match fuel.
When in an hole stop digging for christ sake.
The ECU controls all elements we are talking about. Fuel, boost pressure and turbo initiating settings.
The remap does the following. lowers the initial turbo 'switch on' by somewhere between 2 and 500 revs, model depending.
on a variable speed turbo, such as on the X5, it increases the turbo spin rate for a given revs, probably mostly as a direct result of initiating it sooner.
increases the peak boost level achievable, to match the additional fuel being fed.
By simply throwing more diesel into the cylinders you would not achieve the the power gains you can get.
Now, it may be different using an inline power box, that I don't know, but a true ECU remap done on a rolling road like Evolve Automotive do does more than just fuel.
----------------------------------------------------------------------
Above your first post see highlights in red and blue.
----------------------------------------------------------------------
Below your later statements saying you did not say what you said above.
Colour coded for easy identification.
Who said anything about the ECU controlling the Turbo.....what a numb nuts.
I never said the ecu adjusted the boost to match fuel.
When in an hole stop digging for christ sake.
Could not have put it any clearer myself Wammers...
Picked the wrong one to lecture me thinks. But it just goes to show how much crap is talked in boy racer type circles. And how much wool is pulled over their eyes by tuning companies.
I have to dissagree with the Only Fuel statement pretty strongly. I can't speak for a power box on a P38 as I have never fitted one, but a remap on a turbo diesel works in the following way.
The ECU controls all elements we are talking about. Fuel, boost pressure and turbo initiating settings.
The remap does the following. lowers the initial turbo 'switch on' by somewhere between 2 and 500 revs, model depending.
on a variable speed turbo, such as on the X5, it increases the turbo spin rate for a given revs, probably mostly as a direct result of initiating it sooner.
increases the peak boost level achievable, to match the additional fuel being fed.
By simply throwing more diesel into the cylinders you would not achieve the the power gains you can get.
Now, it may be different using an inline power box, that I don't know, but a true ECU remap done on a rolling road like Evolve Automotive do does more than just fuel.
----------------------------------------------------------------------
Above your first post see highlights in red and blue.
----------------------------------------------------------------------
Below your later statements saying you did not say what you said above.
Colour coded for easy identification.
Who said anything about the ECU controlling the Turbo.....what a numb nuts.
I never said the ecu adjusted the boost to match fuel.
When in an hole stop digging for christ sake.
ok, let me use different language. I did what you suggested and did some more reading.
when I said Who said anything about the ECU controlling the Turbo.....what a numb nuts.
The numb nuts was me, saying I realise I had got it all completely wrong. Not trying to insult anyone else.
I have learned properly a very little about turbos so thank you. i look forward to being able to use the advice I get in future and not make an arse out of myself like I have this time.
"Boy Racer", thank you. My grey hair and I take it as a compliment.
No problem my friend each bit of knowledge gained is another step forwards. I have been at this game for 50 odd years and still learning. At my age it's trying to remember that is sometimes the problem. The boy racer was not aimed at you in particular. I built an RS turbo for my lad a few months ago and set it at 8 psi, standard for that car. He took it to a tuning shop in Blackpool for set up. I told him not to boost it more than a maximum of 10 psi. The idiots set it at 16 psi. It is now in my garage with a blown piston. So he has learned the hardway to take notice of the old man.
enery8
Active Member
Bournemouth City Council dustcarts were converted to run on LPG but it apparently proved to be uneconomic and idea was scrapped.
CEZ1869
New Member
No problem my friend each bit of knowledge gained is another step forwards. I have been at this game for 50 odd years and still learning. At my age it's trying to remember that is sometimes the problem. The boy racer was not aimed at you in particular. I built an RS turbo for my lad a few months ago and set it at 8 psi, standard for that car. He took it to a tuning shop in Blackpool for set up. I told him not to boost it more than a maximum of 10 psi. The idiots set it at 16 psi. It is now in my garage with a blown piston. So he has learned the hardway to take notice of the old man.
Words of wisdom...
raise:
