Thread: Calculating Aprox WHP With Injectors

No, because BORNGEARHEAD's numbers are close for his VE.
I'm thinking that maybe I remembered the peak value incorrectly for my run, or wrote it down wrong.

I would think it's only accurate if your tune is 100% efficient, if that makes sense. Think about it this way- Let's say you had a really good tune and your numbers were pretty close to matching up with the duty cycle calculation, then intentionally screwed up the fuel map to make it run way too rich... what would happen? The duty cycle would go up, but the whp would go down.

Just idea.

Nissan injectors are rated at 2.5bar if i know. Stock inj are 259cc at 2.5bar, but our cars runnin at 3bar stock pressure, so its more than 259cc in real.

259cc at 3bar = 195whp?

That make your NA results right.

That makes sense.
So the InjDtyCycle & MAF volts vs hp would reflect how much hp you should make on a good tune for that amount of fuel/airflow.