K&N big difference?

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Colthebrummie said:
Wow, you really took offence didn't you. These last insulting posts make you look more of a twat than me and that takes some doing.
Col
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I love it when the guy who likes to poke, gets poked, then spits out the dummy and starts that old tactic of playing the victim. Funny, I had you down as a proper man especially with your posts about the way the world is going, which I couldn't agree more with btw. But here comes the old snowflake victim card, now that really does tickle me. Thanks! Aah, you feel insulted, diddums. Grow up, or grow a pair, whichever you find easier. Again, don't dish what you can't swallow.
 
Now that I am sure is the truth. Thus is the nature of forums. People can play a different role with zero real-world consequences. I like to make it at least 'feel' a bit more like there are real world consequences for being a bell-end, real world or not. You can call me Doc if you want, I just go around healing the world one obnoxious cuddly bear at a time!
 
john snoo said:
I love it when the guy who likes to poke, gets poked, then spits out the dummy and starts that old tactic of playing the victim. Funny, I had you down as a proper man especially with your posts about the way the world is going, which I couldn't agree more with btw. But here comes the old snowflake victim card, now that really does tickle me. Thanks! Aah, you feel insulted, diddums. Grow up, or grow a pair, whichever you find easier. Again, don't dish what you can't swallow.
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I don't know what makes you think I feel insulted. I think the best course of action now John is to agree to just ignore each other's posts. I don't like arguing on the Internet, I only like to argue when I'm within bollock kicking distance.

Col
 
Colthebrummie said:
I don't know what makes you think I feel insulted.
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This is where I got that idea:
Colthebrummie said:
These last insulting posts make you look more of a **** than me
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I could be wrong but in my experience when someone describes something as "insulting", they usually feel insulted by it, strange choice of adjective otherwise wouldn't you say? Also strange... the forum censors the word twa*t in my quote of your post, but not in your original post itself. Bloody favouritism, bugger it, let's call it racism. Everything else is. :D

I am happy to go along with your idea, I wouldn't be uncivil towards you or anyone else without provocation anyway, and I don't mind if you ever want to reply to my posts (you won't anyway, I know) so long as you don't tell me I should just get a cart horse if I ever discuss ways to raise the ride height of my TD5. :)

PS I could actually post you my bollocks if you want to kick and send back. NHS just removed them for me for the handsome sum of £24,000, obviusly I didn't pay, my neighbours did because I am too busy watching Jeremy Kyle to see how other gender-fluid zees and zers are doing. #CommunismWorks

Nice bantering with you. :)
 
The biggest problem with any tuned diesel, and especially old school diesels is making power without making smoke, a real problem when off boost but asking for power.
Anyone can make power just by dumping more fuel in, but to make power and no smoke is a real skill.

If the td5 is an auto and going by the one I drove once (which was enough!) the box kills what power the thing had, if its a manual it will still be as flat as a fart at low rpms.
I tried many tunes on my td5 manual, and none not one answered the lack of power at low rpms, maybe the vgt is the answer? albeit an expensive one.

I reckon a td5 with a mild tune plus a vgt and a decent 5 or 6 speed auto box would be a thing of wonder.
 
Thanks for that. The only cheap and easy things a friend of mine mentioned (different friend) is to "wind up the turbo" (not sure what he means but may look into it), blank EGR and remap (that one isnt cheap but already done).

I have exactly that same issue, mine is a manual btw. It's just so dead up to around 2k, I still there is more to investigate because sometimes it kicks in at 1600-1700, sometimes not til 2000 (which in my mind shouldn't be possible as it's electronic code governing that), and also when it does kick in, it isn't always a smooth delivery. Sometimes there is a very feint feeling of blips/hesitation as it pulls from 2k-3k. Its very very feint though but might mean something else going on. The MPG when I first drove it home was low 30s, maybe even 33 or 34 I can't remember, but I was very happy with it. Since then I got it remapped, it definitely has more grunt after 2k revs but now delivers 22-24mpg at best. So something isn't quite right, I have jobs to do yet including a service so all the basics need ruling out first, and another clean of the MAF or maybe replace.

I have been working on gearbox selector yoke for several months so the centre console was out and I had a nice hole which meant every puddle I drove through gave me a wet groin, and not from enjoyment I can tell you. :D Noisy it was too, so I was trying to keep the revs down and that obviously made it very sluggish. But even with that closed up now, I like to drive at low revs generally in any vehicle (to save pennies on fuel as well as just have a more relaxed drive!). I only raise the revs to 3k plus when really needed for a rare overtake of a lorry or tractor. So that definitely makes matters worse given the TD5 just manages to hold speed below 2k revs, forget acceleration! (in mine anyway!)

I have finished working on the gearbox, gear changes are 100 times better now (two box oil changes too). Still not quite perfect, but I think the new clutch will help that. I am sure it's got a SMF in it and I think that makes the combination of the low performance with my driving style a recipe for a sluggish machine. But even if I really give it some, it's the slowest manual disco I have ever been in and I have been in quite a few, and my mate must have owned ten of the damn things and even his old basher green laner goes better, not been serviced in about a decade!

I don't know what a vgt is, but definitely curious! Do you mean a variable turbo? Someone once mentioned that to me before but it's mega money I think?
 
john snoo said:
Thanks for that. The only cheap and easy things a friend of mine mentioned (different friend) is to "wind up the turbo" (not sure what he means but may look into it), blank EGR and remap (that one isnt cheap but already done).

I have exactly that same issue, mine is a manual btw. It's just so dead up to around 2k, I still there is more to investigate because sometimes it kicks in at 1600-1700, sometimes not til 2000 (which in my mind shouldn't be possible as it's electronic code governing that), and also when it does kick in, it isn't always a smooth delivery. Sometimes there is a very feint feeling of blips/hesitation as it pulls from 2k-3k. Its very very feint though but might mean something else going on. The MPG when I first drove it home was low 30s, maybe even 33 or 34 I can't remember, but I was very happy with it. Since then I got it remapped, it definitely has more grunt after 2k revs but now delivers 22-24mpg at best. So something isn't quite right, I have jobs to do yet including a service so all the basics need ruling out first, and another clean of the MAF or maybe replace.

I have been working on gearbox selector yoke for several months so the centre console was out and I had a nice hole which meant every puddle I drove through gave me a wet groin, and not from enjoyment I can tell you. :D Noisy it was too, so I was trying to keep the revs down and that obviously made it very sluggish. But even with that closed up now, I like to drive at low revs generally in any vehicle (to save pennies on fuel as well as just have a more relaxed drive!). I only raise the revs to 3k plus when really needed for a rare overtake of a lorry or tractor. So that definitely makes matters worse given the TD5 just manages to hold speed below 2k revs, forget acceleration! (in mine anyway!)

I have finished working on the gearbox, gear changes are 100 times better now (two box oil changes too). Still not quite perfect, but I think the new clutch will help that. I am sure it's got a SMF in it and I think that makes the combination of the low performance with my driving style a recipe for a sluggish machine. But even if I really give it some, it's the slowest manual disco I have ever been in and I have been in quite a few, and my mate must have owned ten of the damn things and even his old basher green laner goes better, not been serviced in about a decade!

I don't know what a vgt is, but definitely curious! Do you mean a variable turbo? Someone once mentioned that to me before but it's mega money I think?
Click to expand...
With my 300tdi, just changing the exhaust for a stainless sports version transformed its low down torque, the normal bogging down flatspot more or less disappeared.
But if you are getting anything more than 30 mpg, tested brim to brim, you are doing bloody well, although it is easier in a manual, obviously.
You seem to be describing an intermittent fault.
Have you run it through diagnostics?
It does sound to me to be electrical and I am beginning to think you may have a wire loose, or shorting.
Others will tell you to clean out the red plug on the ecu and change the injection loom. I did that, it made no difference and the new loom still allows oil to get down the wires to the ecu.
I think you need to drive a standard manual TD5 to find out what it should be like, if it is deffo better than you have a fault to find and fix rather than a need to tune it up.
 
john snoo said:
Thanks for that. The only cheap and easy things a friend of mine mentioned (different friend) is to "wind up the turbo" (not sure what he means but may look into it), blank EGR and remap (that one isnt cheap but already done).

I have exactly that same issue, mine is a manual btw. It's just so dead up to around 2k, I still there is more to investigate because sometimes it kicks in at 1600-1700, sometimes not til 2000 (which in my mind shouldn't be possible as it's electronic code governing that), and also when it does kick in, it isn't always a smooth delivery. Sometimes there is a very feint feeling of blips/hesitation as it pulls from 2k-3k. Its very very feint though but might mean something else going on. The MPG when I first drove it home was low 30s, maybe even 33 or 34 I can't remember, but I was very happy with it. Since then I got it remapped, it definitely has more grunt after 2k revs but now delivers 22-24mpg at best. So something isn't quite right, I have jobs to do yet including a service so all the basics need ruling out first, and another clean of the MAF or maybe replace.

I have been working on gearbox selector yoke for several months so the centre console was out and I had a nice hole which meant every puddle I drove through gave me a wet groin, and not from enjoyment I can tell you. :D Noisy it was too, so I was trying to keep the revs down and that obviously made it very sluggish. But even with that closed up now, I like to drive at low revs generally in any vehicle (to save pennies on fuel as well as just have a more relaxed drive!). I only raise the revs to 3k plus when really needed for a rare overtake of a lorry or tractor. So that definitely makes matters worse given the TD5 just manages to hold speed below 2k revs, forget acceleration! (in mine anyway!)

I have finished working on the gearbox, gear changes are 100 times better now (two box oil changes too). Still not quite perfect, but I think the new clutch will help that. I am sure it's got a SMF in it and I think that makes the combination of the low performance with my driving style a recipe for a sluggish machine. But even if I really give it some, it's the slowest manual disco I have ever been in and I have been in quite a few, and my mate must have owned ten of the damn things and even his old basher green laner goes better, not been serviced in about a decade!

I don't know what a vgt is, but definitely curious! Do you mean a variable turbo? Someone once mentioned that to me before but it's mega money I think?
Click to expand...


When I bought my td5 (2001 model) I still had my 300tdi auto (97R reg) this was tuned by mrfearn with i-cooler etc, and I have to say it would eat the td5 manual for breakfast, td5 was std tune at the time.

Put simply all disco models were underpowered as standard.
Td5 only 15 bhp more than the tdi (late tdi auto had 122bhp) it replaced, yet is was a bigger/heavier car, the D3 is also not powerful enough, and again is heavier still but with 189bhp you at least have a chance!
D4 big leap forwards with 245 then 255bhp.

D1 200 111bhp 1986 kg 56bhp tonne
D1 300 manual 111bhp 1985 kg 56bhp tonne
D1 300 auto 122bhp 1985kg 61 bhp tonne
D2 td5 136bgp 2255kg 60 bhp tonne
D3 2.7 189bhp 2461 kg 76bhp tonne
D4 3.0 245 bhp 2583kg 95 bhp tonne

Then take out the drivetrain losses of two gearboxes/three diffs/driveshafts etc and you can see why they aint sports cars:D

Weights from quick google search, not sure if dry or wet weights?
 
Stanleysteamer said:
4 times a year ours does 500 odd miles in two days, they always run much better afterwards. i think it clears the injectors, and maybe the valves?
Whatever, it works!
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All of those things, plus combustion chamber, piston rings, turbo and exhaust system all get properly heated and cleaned through. Lots of light running for a prolonged period of time cause phenomenon call "wet stacking", where lower combustion temperatures of light load running, causes partially burned fuel to form a sticky tar, which can build up in the exhaust tract, then requiring a good run at higher power to burn off.

Diesels like to run hard, being most happy at 75% power and up.
Light running simply causes them to soot up and run less efficiently.
 
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Nodge68 said:
All of those things, plus combustion chamber, piston rings, turbo and exhaust system all get properly heated and cleaned through. Lots of light running for a prolonged period of time cause phenomenon call "wet stacking", where lower combustion temperatures of light load running, causes partially burned fuel to form a sticky tar, which can build up in the exhaust tract, then requiring a good run at higher power to burn off.

Diesels like to run hard, being most happy at 75% power and up.
Light running simply causes them to soot up and run less efficiently.
Click to expand...
Very interesting, never knew that!
Is this true of petrol cars too? Cause I find a long run sorts them out as well.
Once had a girlfriend who borrowed her sister's car when they went away on holiday. Said burd was scared of driving so i drove us around a bit, a trip or two to Swanage and back not much really. And not too fast neither. Mo My ways and very little dual-cabbage way as we don't do M-ways in Daaarset.
But she handed it back and her sis rang up to say, "Did your boyfriend tune it or something? Cos it goes like the clappers now!"
 
Nodge68 said:
Yes same for petrol engines too, except for wet stacking, which doesn't happen with petrol, but soot still builds up, giving reduced performance.
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Interesting!:):):)
and of course, if you is posh enuff to won a car wiv a DPF then you have to do this or you end up getting problems.
My Mate from Telford had the problem with his Ford Fucarse. I told him to give it an Italian tune up, and explained what it was. He'd never heard of it. But then he is Sicilian!
And it worked, no more DPF thingy!:):):)
 
Nodge68 said:
Yes same for petrol engines too, except for wet stacking, which doesn't happen with petrol, but soot still builds up, giving reduced performance.
Click to expand...


Actually can happen on the direct injection versions, some makes are famous for carboning the inlet valves up as there is no fuel to wash them clean.
 
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