Yaris T1 (1kr-fe) (998cc) aviation conversion

[Aquila]

Originally Posted by karman

Hi All,

Hope someone can help me on this.

I'm converting the above motor for aviation use and need about 15hp more out of the stock motor at 6000rpm (climb/takeoff). Cruise is at ~5400 rpm. The rest of the RPM range don't get used (except for idling of course which can be anything from 1000-2500rpm ).

So, I was wondering what will the easiest mods be.
Noise is not issue.
Fuel usage not issue.
low -> mid range power not issue.


I have to change the throttle body from the "drive by wire" system to standard cable and so I can fit larger bore if that will help.
(Also don't need TPS sensor as throttle will always be advanced/retarded slowly)

Regarding the VVT-I. My understanding it only assist in mid rpm boost, don't do much or high rpm, is this correct? Otherwise I can simple activate it fully at X rpm and make it VVT (without I) as the older motors was.

Any input appreciated.

L:

Hi I use the 1KR-FE engine in our race cars we have made a throttle body that gives 93 HP the rest of the engine is completely standard. I even plan on using this fine engine in an airplane one day.