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The overall fit and finish of the kit is excellent with the supercharger looking and fitting like an OEM installation. The 1NZ-FE is a close relative to the engine used in the Prius, the main difference is the Prius has a 13:1 compression ratio and the variable cam timing is re-mapped to make the engine run on the Atkinson cycle. To help withstand the high compression ratios in the Prius, the 1NZ-FE has somewhat sturdy internals which helps the Yaris when equipped with a supercharger.
This electronic box controls the Blitz Supercharger's compressor clutch. The fuel pressure regulator fits on top of the stock fuel pump located in the gas tank. These two parts are the extent of the engine management used.
This knob inside the glovebox controls the electronic clutch on the blower regulating boost pressure to a high and low position. We know that the JDM intercooled version of this kit runs at 7 psi so we are guessing that this kit may run somewhat less boost. 
On our super conservative Superflow Chassis dyno, the stock Yaris made a pretty pathetic 60 whp and 66 lb/ft of torque. The Blitz Yaris put out almost 89 whp and 92.2 lb/ft of torque in high boost mode. The engine made about 4 whp and 2-3 lb/ft less torque less on low boost. Our dyno is very conservative so expect about 30 more whp on a Dynojet for a low powered car like this. We think the Supercharger is probably good for about 27-30 whp over stock on our dyno which is more than any other mod you could get for this platform short of a semi custom turbo kit. The power gains are typical of a supercharger, board and across the board which makes the car faster than the peak numbers might indicate.
The Yaris was very tastefully modified with a nice looking aero kit and a functional ride height. 
The Blitz supercharger kit has proven to be very reliable. Even with rudimentary engine management the car can take all day beatings on the track no problem. That is more than can be said with most aftermarket FI kits!
11 comments
Hi there. Do you have turbo charger kit for 2011 Toyota Allion?
We are a magazine, we do not sell parts.
I like the underdog sleeper status of the little yaris and with the manual transmission its perfect for the mtn region I live in,which is full of luxury SUVs ,a little since of satisfaction in out preforming a $40,000 escalsde with my paid for (i brought it salvage title,so cheap) stock 3dr version I like the factual and helpful information on your site .I would take any other upgrade suggestions you guys would E-mail to me,thanks for your work
Please help with the wiring. My kit never came with instructions.
We have no idea, we didn’t build this car.
Where did you buy the kit from
This kit is now dosconituned, you can find them used on Japanese Auctions. We run one our project Vitz here in Australia, (Gorilla Industires). Its been a great upgrade and in 4 years and multiple track days, I have had not a single issue. Nolw with a Vitz RS Turbo LSD gearbox, its just been the cherry top, but im now chasing more power. I love driving this over my 550hp Supra lol!
Ive bought a amr500 supercharger and it will be installed in a 1nzfe
What other mods should i do to have a reliable running car example what should i change….the injectors??…fuel pump…??
Im guessing the stock fuel pump would be okay to handle around 150hp….
I drive something like this. Modified and took 2 yrs to build my 08 Yaris. I love putting newer mustangs, challenger’s, etc.. in their places. I’ve absolutely demoralized some drivers, especially since I’ma girl and I built my car 100% cuz fuck shops, I actually got my own now. Sorry, I drive a built not financed car. QQ. One thing that’s amazing with the Yaris is how light it is. I’ve gutted the hell out of my car and replaced a lot of stuff with lighter aftermarket. The low weight with a kit, makes this a beast. I’m currently converting my Yaris over for rally only and going to build another for drag.
i have a 1nz-fe engine i would like to supercharge
It’s discontinued.