In Chamber Testing

[RICE RACING]

Originally Posted by Barry Bordes

Peter, my EGTs are 2” from the port in a HKS cast divided manifold.

TFX uses calculations for burn rate by watching the pressure rise. We enter degrees for port opening then the calculations give temp and pressure at opening.

My AFRs are measured in the downpipe 18” from the turbo flange.

I am getting some early detonation indications when the peak pressure is located less than 45º ATDC. Clint, "the mentor", says we can check the stock knock sensor for accuracy. Unfortunately my computer cannot run both programs (datalogit & TFX) concurrently.

Some of the specs on the sensor:

Non-linearity & Hysteresis
Full Scale Output
±1% Combustion
±0.5% Non-Combustion
±0.25% Available

Frequency Response
0.1 Hz to 10 kHz
0.1 Hz to 20 kHz
1.0 Hz to 30 kHz

More at
http://www.optrand.com/products.htm

Barry

Thanks Barry,

Who do you talk to there? you can E-Mail me if you like or PM to save commentary from others, thanks.