Do you mean lowered by any chance wammers?
Yes.
Do you mean lowered by any chance wammers?
Do you mean lowered by any chance wammers?
Can't we improve cooling by installing an external water pump like D3 ,part no PEB50010 ?
my read on the cooling is that the thermostat is on the return from the rad in to engine, most engines I have worked on the stat is on the head on the out flow so is getting a better go at the real engine temp, when fitted to return the second it opens it is cooled by the rad and will shut , were as on outlet it is held open till all the excess heat is lost.
The opening temp is 80c a lower temp one would give a better margin for error.
them again I am no doubt way of the mark in cloud cuckoo land and should go sit in the corner
Could be. But then why do so many of us have no issues? I'm guessing cheapo replacement radiators might be another issue. The youngest cars are over 15 years old so I doubt there's many original radiators left. Many are probably sh!tpart and probably barely fit for purpose, especially after people hitch the tin-tent on and the beer trailer.
Must say mine has Nissans rad and a power box and when towing 1500kg tin tent only had issues when the viscous fan was knackered.
Nissens in mine too. Someone said they are thinner than original but it seems to cover my usage.
Retarded timing(for better turbo spool up + less noise) + smaller turbo(the same was used in Opel/Vauxhall Omega and older(with aluminium manifold) BMW TDS), hence why it get's more torque down low.Torque up but power slightly down, I think. The engine works harder all the time to deal with the extra weight which is why cooling is so important.
Retarded timing(for better turbo spool up + less noise) + smaller turbo(the same was used in Opel/Vauxhall Omega and older(with aluminium manifold) BMW TDS), hence why it get's more torque down low.
Lower maximum power RPM comes fuelling and small compressor wheel. Also A/C compressor pulley is way bigger than in BMW - thus turning faster.
From all maps from BMW an P38 diesel.
There are big differences in injection pump timing maps, less in fuelling(slightly more fuel at higher rpm in BMW and fuel cut off starting at 4800 instead of 4400 rpm).
It's too complex to explain, but almost every map is different. There are also big differences between pre lift(to 98) and post(99 up).
From all maps from BMW an P38 diesel.
There are big differences in injection pump timing maps, less in fuelling(slightly more fuel at higher rpm in BMW and fuel cut off starting at 4800 instead of 4400 rpm).
It's too complex to explain, but almost every map is different. There are also big differences between pre lift(to 98) and post(99 up).
This guy explains things clearly: http://prj-tuning.com/?p=163
Wow I understood every last...no i didnt... For me, if it drives contentedly and bolts like a stabbed elephant... (Because they don't exactly break speed records either) I'm happy...This guy explains things clearly: http://prj-tuning.com/?p=163
Wow I understood every last...no i didnt... For me, if it drives contentedly and bolts like a stabbed elephant... (Because they don't exactly break speed records either) I'm happy...
And.... I suppose under using the engine's potential leaves a bit more room for a longer Life (in theory).
Clealy out of my depth here!!
Leaving the room
The Rangie maps and Omega maps are different. Never seen the Bimmer ones. Also, I think they tweaked the later maps slightly to help with the hot start issue. One change was the engine speed at which it thinks the car has started: much lower in the 99 models. Suspect the manual box can take higher torque than the auto so could be chipped safely. I've not done mine purely because I don't want to risk stressing the head and to be honest I find it quick enough. With a 3 ton trailer it is foot to the floor on inclines though.