Chipping a MK4 GT TDI 150

Doesnt it have enough already? Ive got a PD 150 GTi and am keeping it standard, i cant see the point of having extra troubles with turbo and clutches.

had a 150 bhp tdi mk4 , got a revo upgrade ... went like stink ,until the engine ate the cam shaft 6k later ,be warned that the 150bhp is prone to eating engine bits and is also very expensive ie, £1000 repair bill , but when it was fixed i was getting average 60 mpg plus .....also keep up with service intervals and a bit of T.L.C and it should keep you smiling for a long time too come , havent heard of the clutch going early though , its just different driving styles .

I had my pd150 remapped (extra 30lb/ft) not too long ago and immediatly noticed the clutch starting to slip (most noticeable in 5th, 6th 1500-2500rpm). Car has done approx 40,000 miles.

To be honest I drive the car harder now so its hard to say, its not a noticeable drop though.

Between the two (motorway and b-roads) I average 45MPG.

Fuel economy will depend on the type of fuel map (generic for the car, or a live map) and the person who is mapping the car though. You could even have your car mapped for better economy with disregard to any performance gains.

The 150 can indeed be remapped, but the key is to keep it mild and within tolerances. A lot of tuners will tune it very aggresively and push everything to the limit.

Find a tuner that knows about the car and knows it limitations, then you'll be ok!

It i risky.

Insurance costs more, clutch lasts much less, gearbox too. Eventhing is being stressed more than std so everything will wear out quicker.

I always say if you want a fast car buy one in the first place - the GT TDI 150 was never a fast car and never will be its nippy.

the vast majority of manufacturers "de-tune" engines to allow for very poor driving conditions ie going way over due services etc. most generic remaps keep it within limits but release the engines full potential. the only things that would fail are the things that are on their way out anyway. i have spoken to vw specialists who have mapped many VAG cars especially the 1.9 tdi's and they said the engines and even the turbos are very strong and can cope with the extra bhp and torque - the only weak point being the clutches which are only just man enough on stock engines.

I would defiantly say that remapping the 150 pd engine is worth doing, as long as its done properly.

I had mine remapped at 90.000 miles and the turbo did go shortly after, although it wouldn't of lasted much longer as standard.
I then got a hybrid garret turbo with hand built inter cooler and turbo back miltek exhaust,

Now on 130,000 miles and the clutch is slipping which I will be getting replaced soon with a competition one. Which may I add has a 100.000 mile warranty which you would not get with a stock one, so granted its costly but if you do it properly you will have one of the fastest diesel hatchbacks out there.

The engine runs perfectly, which I personally think is down to looking after the car , e.g regular services with good oil. Also I always use v power or bp ultimate diesel. And never race the car until the engine is warm.

Would defiantly recommend tuning these engines though, the torque figures are incredible and I get 60 mpg on a run

Bull.

I did my anniversary TDi a few years ago, it was quick enough but it chewed the clutch around 2000 miles afterwards, and the camshaft and turbo has since been changed with the new owner

The car had FVWSH, correct oils used, and it was never driven hard

It may have been bad luck, i don't know, i have since bought another 150tdi as a runaround, it will be kept as VW intended, its not fast but it does the job in hand

If it were me i would leave it as it is, the mk4 platform isn't the best at handling the standard power output, let alone one with a further 40bhp