1nz-fe Cam Swap

Sure I'm interested

 

Definitely curious! Generally the Prius' ECU won't allow additional power to be generated from mods that work on other cars (eg. turbo chargers). It will close the throttle until the same amount of power is produced.

 

Obviously, these engines are tuned for efficiency and lower RPM operation. Will be interesting to see how this affects overall economy and drivability.
Cool experiment!

 

Increased compression means increased pressure on the piston rings. It's rare to increase compression on a motor without a companion upgrade of pistons and rings. Prius stock rings are not designed for that compression, It will be a lot of fun for a while though.

 

I can't speak to the turbo portion as I never installed it before it was totaled. However, the custom intake and full custom exhaust I had not only gave me better mpg when I kept my foot out of it, but it also charged the hybrid battery quicker and gave me a bit of an increase in power measured by my butt dyno. Never had it dynoed.. The Gen1 Prius running also a 1NZFXE that was turbocharged by Julian Edgar was able to find a way around the closing throttle.

 

Great to hear !!

I was in communication with a user on the YarisWorld forum who had said that they had a 1NZFXE engine with a 1NZFE intake cam running on their test bench at school and had no issues and no CEL.

I came close to doing the install and chickened out.

Wonder how it would handle if you opened up the airways more and made it more free flowing??

 

I'm curious to see comparative dynos (before/after). Any other information like a/f raito, mpg, temperature related info will also be interesting.

 

It would be interesting if you can replicate the boost converter mod that TRD did in their Landspeed Prius - going from 500v to 550.

 

This thread is awesome.

 

This thread is blowing my mind. Fair play this experiment. I was beginning to give up dreaming that the HSD system could ever be improved, let alone touched.

 

That would make sense as in the PSD system, MG1 counteracts or balances against excess torque from the engine. As a result it charges the battery quicker under cruising/idling situations. At the same time under acceleration, if the engine is putting out extra torque than normal to MG1 which would drive forward MG2, MG2 (or the inverter should we say) would require less power from the battery in normal situations. If anything, beefing up the ICE makes the car work more and more like a diesel/electric loco, depending less on the HV pack, if we could imagine the results greatly amplified.

With all this is mind, this is what convinced me of how performance increase was impossible for a Prius. All what these mods 'n' such, such as NOS, superchargers and kei-car turbos do is eventually keep that battery fuller. Which is good in a way, smoother driving for longer, better mpg... and then there's the emissions that are bound to've taken a hit...


Anyways, the one thing you did there by messing with the inverter seems to be the most legitimate way to improve 0-60 times other than loosing weight Like, your claim how it did it in less than 9 seconds is REALLY impressive, and it's understandable too. I hope you'll find luck with the buss-bars of yours or 550V boost converter, I'm sure all the autocrossers will be over the moon for it. And here's hoping it'll give birth towards a new type or group of driver within this community.

 

That's cool basicly increasing current to the mgs outside of the software parameters. Do you have Toyota techstream on a laptop it would be very interesting to see the temp parameters of the mgs under load.

I really like your inverter.
It's hard to find a 200 volt input inverter very limited selection. I have already installed some power leads to the battery but was surprised to find 200 volt inverters not readily available.
That has some marketing possibilities.