Tuning Question - MAF numbers & power?

[pete r]

Happy new year!

Does an increase in WOT, peak rpm MAF numbers mean the engine is producing more power?
For example does MAF readings of 213g/s and 4.5v at 5,500rpm mean the engine is putting out more power than readings of 196g/s and 4.5v at 5,500 rpm?
It shows the engine is swallowing more air - more air equals bigger bangs?

cheers,
Pete

[Bossxr8]

In theory, yes.

[pete r]

Originally Posted by Bossxr8

In theory, yes.

A quick google shows there's ways to calculate HP from MAF numbers.
On the dyno she spun 250rwhp at 188g/s. After lots of playing with Tuner Pro and Forscan shes now gulping 213g/s. Looks like its time to go back to the dyno to confirm things.
But I'm happy to know its an indication we're heading in the right direction

Cheers mate
Pete

[Bossxr8]

Originally Posted by pete r

A quick google shows there's ways to calculate HP from MAF numbers.
On the dyno she spun 250rwhp at 188g/s. After lots of playing with Tuner Pro and Forscan shes now gulping 213g/s. Looks like its time to go back to the dyno to confirm things.
But I'm happy to know its an indication we're heading in the right direction

Cheers mate
Pete

Quarterhorse does a hp and torque estimation from airflow numbers. But in my experience it probably reads a bit high. It estimated my 220rwkw NL as 309 kw and 503 nm. I know a high stalled BTR probably soaks up a fair bit of power but i doubt it would be that much.

[pete r]

Originally Posted by Bossxr8

Quarterhorse does a hp and torque estimation from airflow numbers. But in my experience it probably reads a bit high. It estimated my 220rwkw NL as 309 kw and 503 nm. I know a high stalled BTR probably soaks up a fair bit of power but i doubt it would be that much.

Ive seen some people say RWHP roughly equates to FWKW...

Do you datalog with QH? I cant get a def file for my strategy so am logging using forscan. It works but it would be really good to use QH

[Bossxr8]

Originally Posted by pete r

Ive seen some people say RWHP roughly equates to FWKW...

Do you datalog with QH? I cant get a def file for my strategy so am logging using forscan. It works but it would be really good to use QH

Yeah i do datalog.

What strategy/vehicle do you have?

[pete r]

Originally Posted by Bossxr8

Yeah i do datalog.

What strategy/vehicle do you have?

I have a 1998 AU1 XR8, the strategy is NVXN3. I only have it in .xdf format

[pete r]

MAF now flowing 219.10g/s at 5600rpm