There is a MK4 90bhp and 110bhp NON PD I have the PD 115 and that pulls hard, but the 130 has more range and torque, the 150 i would love to have a go in

I also have a 90bhp MK3 which is deffo faster than the MK4 90bhp so what ever u put in with the MK3 being lighter it will be faster, the biggest problem is fitting the electrical side of it as it all needs changing, i would fit a MK4 dash tbh, the engine fits fine, 115, 130 and 150 will all fit the same.