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Author Topic: Prechamber volume  (Read 4543 times)

doandevil

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Prechamber volume
« on: July 07, 2011, 09:51:07 AM »
Guys

I wanna do some combustion experiment and calculation heat release with Lister CS 6/1, but i don't know the volume of the prechamber....it's quite difficult to measure.....does anyone here got information or  know how to measure ?

Thanks ;D

somian

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Re: Prechamber volume
« Reply #1 on: July 07, 2011, 10:21:10 AM »
Normal way of doing this job is to put a piece of glass with a hole in it over the thing to be measured, and then add oil or water 1cc or whatever volume at a time until it is full. Oil is kinder to the injector than water. Obviously you have to take the head off first. In the instance of a CS, there are potentially two volumes, CR valve in and out

Ian

dieselgman

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Re: Prechamber volume
« Reply #2 on: July 07, 2011, 04:06:13 PM »
Sounds right somian... look up cc'ing combustion chambers on the web - probably under racing engine builds and you should find ample description of good ways to measure that volume with precision. Calibration fluid is generally a light colored oil.

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cujet

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Re: Prechamber volume
« Reply #3 on: August 13, 2011, 05:45:28 PM »
If I remember correctly, mine was about 72cc's. Not including the volume of the piston to head and recessed valves.

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carlb23

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Re: Prechamber volume
« Reply #4 on: August 13, 2011, 06:50:07 PM »
mine measured 74 or 75 cc including the valve relief

Horsepoor

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Re: Prechamber volume
« Reply #5 on: August 13, 2011, 10:46:02 PM »
One of heads measured 73cc and the other 75cc - thats probably pretty good Indian control, I guess.
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doandevil

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Re: Prechamber volume
« Reply #6 on: September 05, 2011, 08:13:42 AM »
mine was 75cc also....she came from India...... ;D......after comparing with you guys here i felt more confident...thx  ;D ;D ;D