Supercharged 2nz-fe VVTI tuning - Toyota Yaris Forums

iwanttobeamole · 08-28-2012, 05:09 PM

We're in the process of tuning the my 2nz-fe supercharged Yaris. The ECU we're using a Link Storm (complete replacement) which is able to control the VVTi, but what we're experiencing is that making adjustments to oil pressure/ solenoid is making no difference to the power in the dyno runs, even at either extreme?
Has anyone here had any experience with VVTi tuning on a supercharged 1nz or 2nz?

johnny_vitz · 08-30-2012, 12:47 PM

I tried on my 1NZ using a camcon, didn't see a single gain. Only lost more power as the adjustments increased.

iwanttobeamole · 09-02-2012, 07:30 PM

I guess the additional incoming air is basically negating the effects of the VVTI adjustment.
The difference running a dyno at either extreme of the range was less than 1kw in the end. Oh well, I guess that free's up a channel on my ECU for something else :)

08-28-2012, 05:09 PM	#1
iwanttobeamole Drives: 2000 Yaris 1NZ-FE Supercharged Join Date: Apr 2012 Location: Hamilton - New Zealand Posts: 42	Supercharged 2nz-fe VVTI tuning We're in the process of tuning the my 2nz-fe supercharged Yaris. The ECU we're using a Link Storm (complete replacement) which is able to control the VVTi, but what we're experiencing is that making adjustments to oil pressure/ solenoid is making no difference to the power in the dyno runs, even at either extreme? Has anyone here had any experience with VVTi tuning on a supercharged 1nz or 2nz?

08-30-2012, 12:47 PM	#2
johnny_vitz Drives: 2005 Toyota Echo Join Date: Sep 2010 Location: Hamilton, Canada Posts: 259	I tried on my 1NZ using a camcon, didn't see a single gain. Only lost more power as the adjustments increased. __________________ 05' Echo Hatch - Greddy Supercharger - rear disc

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09-02-2012, 07:30 PM	#3
iwanttobeamole Drives: 2000 Yaris 1NZ-FE Supercharged Join Date: Apr 2012 Location: Hamilton - New Zealand Posts: 42	I guess the additional incoming air is basically negating the effects of the VVTI adjustment. The difference running a dyno at either extreme of the range was less than 1kw in the end. Oh well, I guess that free's up a channel on my ECU for something else :)