D Turbo tuning.

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You will only make so much boost if theres so much fueling. I can make my GT20 make 30psi or 8psi by limiting the fueling....

It's as simple as winding the wastegate fully in and then setting it up with max fuelling?

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Just to confirm a few points here.

The engine will be pretty much as reliable as stock as long as you look after it. Ive seen inside 130k engines that have run big boost for a while and you can still see the hone marks on the cylinders and the bearings look nearly new.

The ph1s are starting to pop head gaskets because of their age, the oldest are over 20 years old but this should be seen as to be expected on a 20 year old car and the go on standard cars and boosted cars.

Youll struggle to wound the engine on a stock pump and turbo no matter how tuned they are.

Id also heard that Peugeot had to de-tune the engine to stop it ruining sales of the XSi as apparently it was as fast before they de-tuned it.

A FMIC is good for keeping your intake temps low and prolonging the life of your turbo, with a good set up its possible to have your intake temps lower than ambient temperature.

Regular oil changes with reasonable quality oil are a must and make sure you use a pug filter as they are the best quality. Every 6000 miles was the OEM interval, some people are doing it every 5k

It is possible to control the boost with the fueling as if there is no fuel you wont make any boost. On my first DTurbo I ran the wastegate arm solid so it would never open and just controlled the boost by the fueling. A maxed 9mm bosch pump will do 32psi on diesel and 30psi on veg with a DWG T2

Thanks for those notes pal!