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View Full Version : Turbo 1 Litre Vitz First Pull on the Dyno

1LitreTurbo
03-21-2023, 11:40 AM
https://youtu.be/GEys9QSE5iM
VVT wasn’t hooked up so it only made 70 WHP at 3-4 psi, hoping for 100ish at 7 psi with VVT working, will post an update once she’s all done on the dyno.
1LitreTurbo
03-21-2023, 11:39 PM
7 PSI
sh0rtlife
03-22-2023, 01:41 PM
thats pretty crazy from a small cc engine
mitch9521
03-22-2023, 04:42 PM
Interesting build, also hello fellow Canadian.
1LitreTurbo
03-24-2023, 09:18 AM
https://youtube.com/shorts/zG9nsG36FM8?feature=share
Got the car back from the shop yesterday, she feels even more like a go cart and I love it.
1LitreTurbo
03-24-2023, 09:21 AM
thats pretty crazy from a small cc engine

Yeah, I was hoping to push it even further but the shop wasn’t comfortable spinning it up to 9000 RPM on their dyno. (I don’t blame them 9000 RPM is definitely pushing into the limits of the stock valve springs.)
1LitreTurbo
03-24-2023, 09:23 AM
Interesting build, also hello fellow Canadian.

Thank you, fellow Canadian. I very much like the itasha on your Yaris.
mitch9521
03-25-2023, 01:07 PM
Yeah, I was hoping to push it even further but the shop wasn’t comfortable spinning it up to 9000 RPM on their dyno. (I don’t blame them 9000 RPM is definitely pushing into the limits of the stock valve springs.)

Does anyone make upgraded valve springs for the SZ engines?
1LitreTurbo
03-25-2023, 02:27 PM
Does anyone make upgraded valve springs for the SZ engines?

No but the 2/3SZ and the Daihatsu K3 series use pretty much the same head and have stiffer valve springs.
mitch9521
03-25-2023, 10:41 PM
No but the 2/3SZ and the Daihatsu K3 series use pretty much the same head and have stiffer valve springs.

Hmm interesting, we never got the SZ here so I don't know a whole lot about them.