OcUK Rolling Road Day 22 @ Viezu & Caffeine and Machine (Warwickshire) - Saturday 1st December 2018

I can live with 247hp down on boost with ridiculous intake temps.

Mass air flow is a very good indicator or poeer

Datalog shows 191g/s calculated mass airflow on the Dyno run so 1.3hp per gram

A road pull with normal intake temps and boost shows 221g/s, so somewhere in the region of 285hp when all is normal
 
So ... cooling was an issue for some then. This is why it's pointless using a dyno...

Cooling on this Dyno for some cars was an issue, not all. Top mount ICs are always going to be an issue but there are places prepared enough that can cool them properly, I can also see from past datalogs that my intake temps were lower at Ti by 15c or so the only difference between there and viezu is bonnet up Vs down. The cooling is fairly equal

A Dyno isn't pointless, but I'm not going to sit and argue that with you as you're clearly think you know best
 
Cooling on this Dyno for some cars was an issue, not all. Top mount ICs are always going to be an issue but there are places prepared enough that can cool them properly, I can also see from past datalogs that my intake temps were lower at Ti by 15c or so the only difference between there and viezu is bonnet up Vs down. The cooling is fairly equal

A Dyno isn't pointless, but I'm not going to sit and argue that with you as you're clearly think you know best

I don't know best, merely stated a fact.
If the dyno operator cannot cool a car's engine appropriately, then that dyno is pointless. It won't get an accurate reading.

This is why I questioned it first, and thankful I didn't get to go. Would have been completely disappointed.
 
I don't know best, merely stated a fact.
If the dyno operator cannot cool a car's engine appropriately, then that dyno is pointless. It won't get an accurate reading.

This is why I questioned it first, and thankful I didn't get to go. Would have been completely disappointed.

Kosta's Impreza made pretty much exactly as expected on the first pull so cooling wasn't that bad.

My "lack" of power was more so the lack of boost than the higher intake temps
 
My limiter is 7200RPM so it looks like that graph stops 650~RPM before the limiter. Though it doesn't look like it had any more to give anyway. But on some of them it looks like they would have given more power/torque if revved out more? Some of them are still climbing where the graph cuts off.

Overall this has been a bizarre dyno experience... It should be as simple as doing the run, and being handed an already converted printout which takes the car to the rev limiter in whatever gear is closest to 1:1...

Definitely think I'll be skipping the next dyno day if its in the same place.
 
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