9th Report: ASA S/C Performs Flawlessly @ Big Willow Springs, Jan 19, 2005

[Mr Paddle.Shift]

http://www.rennsport.com/forums/showthread.php?s=&threadid=3672 :thumbup:

[samir@technik]

:thumbup: :craig:

[Solid]

That's a pretty cool monitoring system http://forum.e46fanatics.com/images/smilies/thumb.gif @ what rpm do you get 7.5 Psi? I always wondered if the .6 BAR my greddy warning gauge reports @ redline was accurate, atleast it's dead on consistant...

[Mr Paddle.Shift]

That's a pretty cool monitoring system http://forum.e46fanatics.com/images/smilies/thumb.gif @ what rpm do you get 7.5 Psi? I always wondered if the .6 BAR my greddy warning gauge reports @ redline was accurate, atleast it's dead on consistant...

Thanks Dan. I will post more pictures about the sys down the road.

That was at 6200rpm. I usually shift at 6000rpm and Step has a slight delay before the shifting happens.

I should point out that the boost sensor I am using is psig not psia. So graph starts picking up from atmospheric pressure.

I no longer use the Greddy boost sensor. I built my own boost sensor. There is bound to be some error in all measurement, since the sensor is sensitive to heat as well. But it's safe to say that the error is probably about 5~6%, which is quite small on our boost scale.

In any case, this graph is hard evidence that we have achieved at least 0.50kgf/cm^2. Still more than what ASA advertised.

[HIGH_HEAT]

vince keep me posted on the project =D

[330iCanada]

Thanks Dan. I will post more pictures about the sys down the road.

That was at 6200rpm. I usually shift at 6000rpm and Step has a slight delay before the shifting happens.

I should point out that the boost sensor I am using is psig not psia. So graph starts picking up from atmospheric pressure.

I no longer use the Greddy boost sensor. I built my own boost sensor. There is bound to be some error in all measurement, since the sensor is sensitive to heat as well. But it's safe to say that the error is probably about 5~6%, which is quite small on our boost scale.

In any case, this graph is hard evidence that we have achieved at least 0.50kgf/cm^2. Still more than what ASA advertised.


Paddle,

Can you clarify for me psia and psig...I forget again.

[Mr Paddle.Shift]

psia = absolute pressure

psig = gage pressure

[330iCanada]

psia = absolute pressure

psig = gage pressure

I recall that. I was trying to remember the convention....psig measures pressure above 1 atmosphere...correct? where psia measures atmospheric plus.

[Mr Paddle.Shift]

I recall that. I was trying to remember the convention....psig measures pressure above 1 atmosphere...correct? where psia measures atmospheric plus.

Yes, you're right. I figure boost is what we are mostly interested in, hence I went with a gage pressure sensor. It would have been interesting to see the boost graph in an almost zig-zag manner, i.e building boost, releasing it, building boost etc.