Turbo M16A Jimny

UPDATE
The wastegate on the turbo is allowing to much boost. It should be half a bar (.5) but boosting up to .8. I contacted the Turbozentrum where I ordered it and they sent another actuator but its weirdly doing the same thing. Turbozentrum are now looking into it. On a positive note, the tuner was surprised how much power the engine was producing at .5 before it creeps up. He says its 150 ft-lb (81 ft-Ib is standard jimny) He is going to tune the vehicle for the most low down torque possible. 

good news that the "boost creep" has been put under control. The turbo is slightly undersized so the exhaust gasses from the engine quickly spool up the small turbine and then the compressor then produces its .5 bar for the intake. The problem then is there is so much exhaust gas left over that it doesnt have time to escape down the exhaust port on the wastegate and then carries on spooling the turbine, producing more boost. The solution for this was porting the exhaust port. This video explains it clearly:

(23) Internal Wastegate Porting (Broke & Boosted Ep4.1) - YouTube

This is the turbo that may of eliminated that boost creep. Its the next size up from my one.
Garrett Boost | Club Line GBC20-300 (garrettmotion.com)

153BHP and 147 ft/lb of torque


 

It’s quick but completely controllable. I honestly reckon it should have that as standard.

This is a very safe tune. The rev limiter is set at 6000RPM. You could probably push it more but I will quit while I am ahead. Might put forged rods in the future, but time to enjoy it now.