Don Terrill’s Speed-Talk

you can go to www.audietech.com and download the manual and demo of Engine Expert or this link may work, http://www.audietech.com/download/SetupEEdemo.exe

I hope this answers some questions you might have!
If not, contact me.
Regards,
John

Engine Expert helps you with the following engine design decisions: * Defining cylinder head flow requirements * Testing trade-offs between airflow, compression ratio, engine speed, and volumetric efficiency * Finding performance limits defined by the cylinder head flow and/or cam limits * Finding e...

O.K. I promised you guys this. Engine Expert for windows will be shipping by the end of the week!!! If you have any questions, send me a message, Email me at doctorpipe@yahoo.com, or give me a call (fastest).


Regards,
John Aller
Audie Technology
419-443-8687
610-630-5895 ext.1

Or you could check with Steve at Integral Cams.

I am going to keep this simple. In a N/A engine, the pipes going into a collector helps cashin on the speed of the particle waves. So each wave going out will leave (if the right length/ rpm etc.) low pressure in the pipes to help get the next wave out and going faster. In a blown (especially nitro)...

Wondering if anyone has done this and if there were any problems, eg vibrations from motors affecting sensors etc My bench is approximately 1100 lbs. It is very quiet, and vibration (WHAT IS THAT! lol!) free. I built the frame out of square tubing and the top and panel to access the motors is remov...

I have had great success using a flat tappet to solve a overlap issue with two-bbl alky carb. engines. I am currently working with my cam grinder to go roller though. Two tack champions this year with off the shelf parts. It is a low buck class (claimer) also.
Doc

If you read where back pressure makes more power, it is because the cam is wrong for the application, or the mixture is wrong. In cases where I couldn't run the exhaust where I wanted, we tuned the header and collector and went into BIG pipes the rest of the way to minimize the pressure waves that w...

If you just want a before or after comparison, just use a couple of shop vacs and a homemade manometer hooked to your plenum. Don't worry about depression, that is what you are guaging your airflow from. The more airflow, the less depression. You should probably build a 40 to 50 inch manometer. My d...

I use the lm-1 for serious tuning BUT I use a mixture guage with the factory o2 sensor in ALL of my street cars. It tells me if my turbo car is going too rich or too lean. It went rich when the tube from the intercooler cracked, so I knew where to start looking for the problem. Something is better t...

One little word of caution on inline BMW's. They have crank harmonics around 6700 rpm. Keep them below that and they will live a relatively happy life. I reworked the head and manifolds on one a couple of years ago and added a chip. It ran real well and still got decent mpg. on the freeway. Fix the ...

If you are having a problem, let me know. You can usually call me between 10 am and 10pm monday through friday. I will try to get you through it. by the way, If you are using flow com, like on a 1020 bench, Audie will have the expander box done in a week or so. That will let you use the automatic va...

I have found the swirl meter very useful for ports that like to change direction from low lift to max. lift. Without the swirlmeter, I wouldn't know it did that, or that I could correct the problem. I have also found it interesting how the intake manifold affects swirl. Too much swirl spins the fuel...

These grooves sound promising. My confusion is on the jaguar 12 cylinder, the May head raised the compression and power by having a small chamber around the exhaust valve. I know it has limitations, but it worked better than the old flat deck head (efficiency wise). Does anyone have an opinion on gr...

I need more details about your bench project. However, if you want, give me a call, I would be glad to give you some ideas and answer any questions you might have. I do suggest downloading the demo and checking it out, www.audietech.com.
John Aller
Audie tech
sales and support
419-443-8687