u/Jellyfish_Familiar

I have a mk 4 golf with the AHF engine (110hp ve).
my turbo has some problem either with the vanes or the actuator where it doesn’t open and close properly. Boost comes in at around 3k rpms. the turbo is the standard one for that engine.

I want to do a stage 1 ecu tune to get it il to 140bhp, however, i need to settle the turbo problem first.

I have a couple of options.

1- buy another used 110hp ahf turbo for 120 eur.
2- try to find a used pd130/150 turbo for 200-300 eur.
3-buy a hybrid pd150 turbo for 750+ the intercooler needed for another 350-400.

I don’t know if it is worth it to buy the hybrid turbo, as i wont be pushing past 150hp anytime soon.

And I also don’t know if the standard 110 turbo is reliable enough for 140hp.

What would you do?

I’m 18 years old and I’ve always been interested in cars, my friends are all in the automotive business like car wrapping and tinting, detailing, kit sourcing and installations, etc.

I’ve been looking into doing exhausts like mufflers, full exhaust systems, dpf removals, etc.

Could someone who js in this line of work tell me what experience I would need and what apparatus will be required for this. Could I start with some tools and then progress into doing more,(e.g coulr j start with a basic welder doing rear mufflers and then in later stages buy a pipe bender to do fully custom builds?).

As far as experience I have the basic tools knowledge and a basic idea of how the exhaust systems work, but I’m looking into doing a TIG welding course later this year.

Any advice is appreciated.