Mustang dyno's are typically calibrated for MPH instead of RPM. These runs are done with a 55 - 109mph pull. I've driven the car on the street and the boost comes on almost instantly. Its insane actually. This turbo is very happy to be on this engine.

 

^^ word, and don't these dyno runs have to be in a specific gear? i.e. 3rd gear, 4th etc

 

You should always try to be in whatever gear is closest to a 1:1 ratio. In the tc, its 4th.

 

ok, gottcha

 

The reason there is no power below 3500rpm because this is where we start measuring. doing a 1500 rpm pulls in 4th gear puts the motor under a lot of load.

Trust us the car loves to boosted and power is instant.

TC 16g

 

Very nice....wish i had the money to invest in forced induction.

 

So what would happen to the motor? Sorry for all the newbie questions, I'm new to dynos.

 

ever tried to take off from 10mph in 4th gear?

It's called lugging the engine.. engine temps go up, EGT's go up, it's just not a good thing.

On the dyno, you start from dial in a start MPH and an end MPH. In the Scion they go (in 4th) from 55 to 109ish.

You start from 0 in 1st, gear, and work your way up to 4th gear. Meanwhile, the dyno operator is watching the speed on his computer, and once it jumps to 55, he starts the power test. From that point, you hammer down.

 

word.....

 

why dont they ever make dyno charts showing the power made from 1st gear up to the highest gear? Is there a reason for only showing the pull in the highest gear?

 

Because you want to dyno in the gear that's the closest to 1:1 with the engine and the wheels..

In a lot of cars, that's 3rd, but in the scion that's 4th gear.

 

I see, thanks for answering my questions.