Can you guys post your RWHP and the max airflow you guys are seing (AFGS or CFM)?


I'm trying to find a correlation between RWHP and AFGS (air flow grams/sec).

I've been told you should have 1 AFGS per RWHP. Any truth to that?

 

Well, I recently did a run on the street to 5000 RPM, and hit 250 AFg/s. I make 348 HP at 5000RPM (cutout closed), so for mine it's only about 0.72 g/s/hp. Sorry I couldn't hold it longer, but I try not to do triple digits around here except in a tuning emergency!

 

That makes sense... My car just dyno'd about 340 RWHP peak a couple of weeks ago and makes peak 330-340 g/s at the MAF according to my datamaster logs. Curious to see what others have to say.

 

401 AFGS at 6700rpm with a little over 400rwhp on a stock MAF. It dropped to 314 AFGS with a ported MAF.

 

The powerful ones peg the MA.

Rich

 

sorry to hijack but I was wondering with the setup in my sig should I upgrade the maf or should the stock one be ok for like 500 rwhp n/a or so
I cant spray with the new cam I put in anyway

 

With the size of your motor, heads, cam and single plane you might want to think about a speed density tune or better yet a FAST or Accel ECU. I doubt a aftermarket MAF will make a difference.

 

****ty cell-phone video Click here to watch 0409071435

I made 405/371 and trapped 118 in a full weight car. I think I was getting valve float past 5800 in that video though so thats probably why it started jumpin around.

 

I will be for next year but funds are kinda tight right now
actually since I have a old school distributer I only use the stock computer for fuel management.I might just throw a carb on next year and just run everything with the digital7 msd

 

To be honest it all depends on with MAF table calibration you go off of. At 600RWHP mine was only at 430.

 

Problem with that is Ed Wright's 520rwhp monster only gained single digits going to speed density, and I would put money on it that his car was tuned better than 99% of other cars out there. That was 520rwhp through an 8" ATI and 4L60E so it is a stout motor to say the least.

 

MAF tables are not linear. There is no correlation between AFGS and HP.

After a dyno pull, you may be able to find a correlation but only at that point of max HP referencing the MAF. Beyond that, forget it.

 

Yeah, there might be a little influence there by the nitrous you were sniffin'.