Turbo tuning

If only it were that easy. To get earlier spooling you need to do one/all of these:

Larger diameter exhaust (less backpressure), freer intake, or rebuild the turbo with a smaller or lighter compressor (£££££). Even so you wouldnt shave more than a few hundred rpm off the current, and with a hybrid turbo you either head towards more power but more lag or less power and less lag - thats just the physics of it unless your turbo is very poorly designed to start with.

You may have a loose actuator allowing wastegate opening too early or a sticky wastegate staying open. Stock turbos on TDs normally come in about 2K dont they? Whats yours come in at?

Hi Coyoteboy Its coming in at 2200/2400 rpm,

Peter

you could tweak the fuel pump to increase power. depends on the type though as to how easy it is. Lucas are more difficult than the bosch ones. it'll increase torque and BHP but also emissions. less mpg too.

Hi SimonDS Tell me more,,,,,,tell me more,,,,,,, one of my problems is ,, when we go touring with a caravan, the boost is almost none existent when climbing some hills, unless I drop down one or two gears then accelerate hard, can I overcome this ,, or just put up with it, Fitzy

Have a look at

Thats normal if you havent got the revs (and hence gas volume flow) to spin it up. Tweaking the fuel pump dumps more fuel in - makes nice black clouds and gives more performance as D's generally are run weak for emissions. No idea on this car how to, mine runs two pump speeds AFM position dependant, but its a petrol.

Thanks for the input People, I have had this problem for some time now, so I think I will just have to live with it, like I have said, I'm not looking for performance, just a bit of torque at lower rev's some people have suggested changing the car,,,,,,,,,,,,,,,,,,,,, that is out of the question because this is a brilliant car, its never let me down, works hard all week,economical,comfortable , and just looks good, Fitzy

i had my d'turbo tweaked as it seemed to lack power. Had the main fuelling turned up a bit and the on boost fuelling too. No black clouds at all, over

Getting it tuned should help some body has already mentioned the derv doctor ive heard good things about them. Allard are goo to as are vann aken?? In fact i intend to take my car to the doc's next yr for some tlc on the engine if it passes the mot with flying colours. Im sure my turbo kicks in 1800ish defo sub 2k mark. Try an "italian" tune up and some injector cleaner to see if that helps. DOnt forget all the usual stuff tho like air filter, fuel filter as these hamper power. Also if you are mechanically minded you could take the intercooler off the car and clean it inside and out. You'd be surprised in the difference it makes. I was, nearly shat myself (i wasnt expecting it i only cleaned it cos i spilt some oil and hot chocolate on it).

hth si