Camila gets the TWEEK... Low EGT's and more power than a M3

Sheeez... thats giving her fair wetting! 8O

Reason I have thought about a bit more boost psi wise is that we live at the 3000' above sea level mark. Happy about its mid range response, thinking that holding speed on the hills could be improved. But if this means getting into the upper levels of EGT range...... forgotten about already.
What I did think though was by moving the wastegate valve connection (leaving the diaphragm pipe where it is) to the inlet plenum chamber the designed boost of 14psi would be at the valve inlets, not the turbo outlet. There would have to be some pressure drop across the intercooler?
sheff

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Originally posted by sheff
Sheeez... thats giving her fair wetting! 8O

Reason I have thought about a bit more boost psi wise is that we live at the 3000' above sea level mark. Happy about its mid range response, thinking that holding speed on the hills could be improved. But if this means getting into the upper levels of EGT range...... forgotten about already.
What I did think though was by moving the wastegate valve connection (leaving the diaphragm pipe where it is) to the inlet plenum chamber the designed boost of 14psi would be at the valve inlets, not the turbo outlet. There would have to be some pressure drop across the intercooler?
sheff

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The altitude should not effect things, especially when we're only talking about 3000'. The setting of 1bar on the waste gate will deal with all of that...

Actually, one of the things all of you guys with 300TDi motors could look at is replacing the 90 degree elbow, that's just before the turbo, with a thicker silicone one (there's probably something similar on the 200TDi). If you go out & give it a quick squeeze, you'll notice that it's very thin. Seeing as it's under negative pressure at that point, they do collapse and restrict air flow... They also split and suck all sorts of crud into the turbo & engine!!!

Just a little bit more food for thought....

Mark.

<div class='quotetop'>QUOTE</div><div class='quotemain'>Actually, one of the things all of you guys with 300TDi motors could look at is replacing the 90 degree elbow, that's just before the turbo, with a thicker silicone one (there's probably something similar on the 200TDi). If you go out & give it a quick squeeze, you'll notice that it's very thin. Seeing as it's under negative pressure at that point, they do collapse and restrict air flow... They also split and suck all sorts of crud into the turbo & engine!!! [/b][/quote]

that isn't a problem on the Defender, it's a pretty beefy reinforced hose from the air cleaner on the other side of the engine.

<div class='quotetop'>QUOTE</div><div class='quotemain'>What I did think though was by moving the wastegate valve connection (leaving the diaphragm pipe where it is) to the inlet plenum chamber the designed boost of 14psi would be at the valve inlets, not the turbo outlet. There would have to be some pressure drop across the intercooler? [/b][/quote]
this is a common mod on the UK boards. They reckon it gives a 1 to 2 psi boost, although I've never bothered checking it.

one thing I did replace years ago was the hose from the snorkel to the air filter. The snorkel necks down to 2.375" OD to accept the OE hose, and the ID is a piddling 2.1625". I hacked the snorkel spiggot off further back where it is 3" OD (still only about 2.5" ID, but it's only for a short section), and used a 3" hose all the way to the air cleaner. (IIRC, the stock one necks down to 2" at one point.)
There was no seat of the pants improvement at the time, but it wouldn't have hindered the latest exhaust and fueling mods. https://www.aulro.com/afvb/

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Originally posted by rick130
that isn't a problem on the Defender, it's a pretty beefy reinforced hose from the air cleaner on the other side of the engine.

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Nope... I'm not talking about that one, it's the short 90 degree elbow that's connected to the turbo.

Mark

:?
you've lost me Mark.
There's a 90* hose off the turbo going to the intercooler, but that's always under pressure. The OE ones are known to split, so you replace it with an SFS silicone one, but the inlet side of the turbo is the big externally ribbed hose from the air cleaner........

Mark. I think you must be confusing hoses here. The 90* hose coming from the turbo is the pressure side. Its already silicon to withstand the heat of the compressed air.
Whilst being fairly thin and flexible it is made in such a way to withstand the turbo pressure.
At 180000km. mine does seem to be slightly porous in as much it is always slightly oily.
sheff

<div class='quotetop'>QUOTE</div><div class='quotemain'>in as much it is always slightly oily. [/b][/quote]

as is my sfs one from time to time. Interesting that the Landy one had a nicer inside radius than the bling one, although the Landy one started to balloon a bit, that's why it was replaced. The bling one has at least 4 layers of cord through it and is much thicker/tougher in section.

i replaced mine about 10k ago with Genuine... Not cheap. but at least they are ok...

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Originally posted by sheff
Mark. I think you must be confusing hoses here. The 90* hose coming from the turbo is the pressure side. Its already silicon to withstand the heat of the compressed air.
Whilst being fairly thin and flexible it is made in such a way to withstand the turbo pressure.
At 180000km. mine does seem to be slightly porous in as much it is always slightly oily.
sheff

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Yep... My mistake & you're quite correct, it's under pressure at that point.

The big one from the air filter de-laminates on the inside. The 90* elbow just splits.

Mark.