I want more torque, Cheap options?

[Drewboyaus]

I'd really like to know what the limit is for these donks. I run mine at 20psi and just did an hour hour run towing a 1.4T trailer with thew boost at full prolly 60% of the trip. Ran like a dream apart from the hills where I could have gotten out and pushed. Lol
I did set it to 25psi just to see, still no limp mode and jesus! It really went but was to worried to leave it. Once my TD42 build is ready to drop in I might screw it up just to see what goes bang first as I won't be able to sell the engine for anything so I might aswell do some r & d with it.

Didn't know you were building a TD42 mate.