Turbonetics T72 Qtrim 0.81A/R

[Hennie Marais]

I've decided on the obovementioned turbo for my 1UZ. It was difficult to decide between the 0.68 and the 0.81, being that this will not be a daily driver I decided to go for the 0.81 ratio. I'm going to stick with the autobox for now with a higher stall converter and upgrade to a TH400 later on in the project. I just hope my calculations was correct for the housing. How I see it it will reach full boost between 4000-4500rpm.

Any one that want to comment on it, feel free to do so.

 

[mshawari1]

How you calculate that you need 0.81 A/R turbine ..
Based on what ??

You can calculate the required trim based on the desired HP​

 

[Hennie Marais]

I didn't do like a figure sum/calculation, what I meant was that I calculated/based it upon experience/previous projects I did.