A lot of talk, but zero data.

I still cannot find a cylinder pressure testing setup.

A lot of talk, but zero data.

I still cannot find a cylinder pressure testing setup.
I believe ATS has cylinder pressure test equipment.......As far as result's haven't heard any.

Did you talk to Kappa9012 or IBDMAX’IN?
http://www.dieselplace.com/forum/showthread.php?t=76213&page=4

Try to get Kistler Sensors, I know it is hard to get but there are existing glow plug replacment for the Dmax. It is not cheap, ~5k sensor, 3k for amplifier, nedd a digital osciloscope to record it. www.kistler.com (http://www.kistler.com) (head office in Switzerland in my home town :ro) )

I'll try to contact them because I need some too, I'll let you know.

If this thread stays on track it could prove very beneficial...;) Let's keep it technical.

Try to get Kistler Sensors, I know it is hard to get but there are existing glow plug replacment for the Dmax. It is not cheap, ~5k sensor, 3k for amplifier, nedd a digital osciloscope to record it. www.kistler.com (http://www.kistler.com) (head office in Switzerland in my home town :ro) )

I'll try to contact them because I need some too, I'll let you know.

We use Optrand sensors with our equipment. They cost much less and you can do all 8 cylinders of a Duramax for about $30,000. Using the Kistler sensor and amplifiers that runs the cost up to about $58,000. With the cost involved to gather this data I doubt anyone will be sharing it. I know several companies along with ourselfs that have already gathered plenty of data from the Duramax engine.

Here is just a few places to purchase the equipment needed to do the job. There are plenty more if you do a quick search for the equipment on Google or MSN Search.

http://www.sensor-technik.de/index_en.html?http://www.sensor-technik.de/englisch/produkt/zylinder.html
http://www.kulite.com/products.asp
http://www.optrand.com/
http://www.beru.com/english/aktuelles/presse/20040629.php
http://www.avl.com/wo/webobsession.servlet.go/encoded/YXBwPWJjbXMmcGFnZT12aWV3Jm5vZGVpZD00MDAwMTI5Nzk_3D .html

Would you unscrew the glowplugs and use a sensor in those holes?

Yes, that's where they go when you have glow plug holes. On gas motors and diesels without glow plug holes we need to drill the block or cylinder head to install the sensors. One of the big problems is the sensors themselves do not last a long time and they are sooooo expensive to replace. They also make sensors in special spark plugs but when a plug gets fouled out you toss a grand in the trash with them. So I do not like to use that type unless a customer is willing to pay for them.

If all the injectors are balanced properly and all of the cylinders have a comparable compression ratio then common sense would be to buy one sensor and test one of the eight cylinders.

We are not building a Winston Cup endurance engine or monitoring a dragster engine that runs on Nitro-Methane and melts stuff in 3 to 4 seconds..........:eek:

We need to know when peak cylinder pressure occurs, how close to TDC, on TDC or how far after.

If there is any doubts on dfata aquisition then the test can be performed again on other cylinders using the same test procedure and the same tune.

Seems like for a few thousand $$$$ and some software it can be done.

McRAT, lemme know what you find out........seems like we can get something for far less that $30-60K.....;)

If you want to do it right, you need all 8 along with some very expensive software. One might be fine to start out with, but you will need all 8 sooner or later.