1,000ft

[Doc Harley]

And that sure helped!
Thanks!!

 

[1nc 2000]

With a stock waste gate, and one of the "store-bought" tunes, remember the ecu is controlling boost (by controlling waste gate and using the tune boost level that it's programmed with). No matter how "good" or big your turbo is, your boost is same. HP improvements come from improvement in charge density, i.e. denser cooler incoming air, and the combined weight of these wheels is 12.5 grams (approx 7%) lighter than stock ones so the turbo spools quicker. When I ran my sled on the same track dyno before and after the turbo mod, to run the same AFR, I had to increase my fuel pressure about 5 lbs.(even at higher ambient air temp). That told me that the incoming air density was higher.
If you have a tune with no ecu boost limit (race map), then the mod stock turbo does produce more boost and therefore more HP.

Last winter I was hitting the set boost cut off point at part throttle with cool intake temps.
Having the secondary intercooler with a fan and shroud on it. Boost sensor is before throttle plates. Would like to have that boost limit raised at part throttle in the computer.
Always pushing the limit of the tunes.

 

[fatchance]

Last winter I was hitting the set boost cut off point at part throttle with cool intake temps.
Having the secondary intercooler with a fan and shroud on it. Boost sensor is before throttle plates. Would like to have that boost limit raised at part throttle in the computer.
Always pushing the limit of the tunes.

Wastegate controller and fine tuning option in the app Tim

 

[Doc Harley]

Tim, this might help.