I was doing a 3rd gear pull today and noticed the RPD was nowhere near what the dyno was showing. I dyno'd at 308whp and 334wtq. RPD showed 280hp and 310tq. Yes my intake temps were around 30 degrees Celsius compared to when I was on the dyno. I think it was about 12C at dyno time. Generous dyno? or is RPD just a best guess?

 

what tune?

 

lol seriosuly.

those are calculated numbers and no where near accurate once you have mods. probably arent accurate stock either.

 

23.5psi HPtune from SSKEV

 

Yeah trust the dyno not crappy GM technology lol

 

ya id say don't look at that rpd hp anymore lol that's not at all accurate

 

That's what I thought. Guess I can't trust it for Knock or AFR either then. Good job GM.

 

uh you can trust those considering there not calculated numbers...

 

Yeah those are measured values

 

I've been relying on the rpd for watching knock lol.

 

lol I forget that the RPD does more than just speed/Gmeter haha! thats what I use it most for

 

Volt meter is good comes in handy when you start to notice fluctuations.

Speed heads up display is a gift from god. I hate looking at the cluster speedo.

 

Mine seems to average out at 270 hp.

 

^lol this

 

Knock Gauge is the best! If its accurate it tells me that gas from pioneer stations is junk. Brand names like esso, shell and Stinson is good to go.