Tuning Options - Toyota Yaris Forums

fnkngrv · 12-02-2015, 09:29 PM

Any piggyback will require feedback from its own o2 sensor and it needs to be a wideband. To be realistic you will be spending between $750-2000 when it is said and done between piggyback, harness, sensor, Dyno pulls, etc. Also because the stock ECM does a hell of a job correcting itself you will probably have issues every so often with it putting you back to 14.7 afr. I am pretty sure that Jason didn't see his gains until he installed his JUN NA Cam set which runs $1000 for the pair from JUN directly. My two cents is that you are chasing futility. The only reason why anyone has done a piggyback with this car NA is because they race with it in some form. That is the only justification for the investment. If you are going to spend upwards of $1000+ then you might as well research that 2zr swap as it is relatively straight forward, will be OEM reliable, and net around 130hp rather than the 106hp at the crank. Scott got to ride in the swapped rig AFAIK while on a trip and came away pretty impressed.

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12-02-2015, 09:29 PM	#11
fnkngrv Mr. 155 and climbing View User's Garage Drives: Seriously Modded 07 Sedan Join Date: Jun 2006 Location: In The Hotbox Posts: 4,742	Any piggyback will require feedback from its own o2 sensor and it needs to be a wideband. To be realistic you will be spending between $750-2000 when it is said and done between piggyback, harness, sensor, Dyno pulls, etc. Also because the stock ECM does a hell of a job correcting itself you will probably have issues every so often with it putting you back to 14.7 afr. I am pretty sure that Jason didn't see his gains until he installed his JUN NA Cam set which runs $1000 for the pair from JUN directly. My two cents is that you are chasing futility. The only reason why anyone has done a piggyback with this car NA is because they race with it in some form. That is the only justification for the investment. If you are going to spend upwards of $1000+ then you might as well research that 2zr swap as it is relatively straight forward, will be OEM reliable, and net around 130hp rather than the 106hp at the crank. Scott got to ride in the swapped rig AFAIK while on a trip and came away pretty impressed. Sent from my XT1575 using Tapatalk __________________ Team Tiamat Racing on Facebook Youtube Channel: Team Tiamat Racing *Class record holder in Land Speed @ 154.5mph for 1.5 mile and 145.5mph in the mile in the F (2.016 to 3.014 L), G (1.524 to 2.015 L), and H (1.016 to 1.523 L) classes.*

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