Originally Posted by Travis R' date='Oct 16 2003, 10:27 AM

OK apparently there is a graph of what you are asking on page 454 of John Heywood's book "Internal Combustion Engine Fundamentals". We should have a copy of it at the shop. So I'll take a look tonight. They are probably for non-turbo piston engines though.

Originally Posted by MaTT_FoULk' date='Oct 17 2003, 04:47 AM

That has what to do with the topic at hand?

Originally Posted by Travis R' date='Oct 17 2003, 04:56 AM

The book I mentioned wasn't down at the shop. Sorry I couldn't come up with numbers.

But a friend of mine brought up the point that there is only so much energy available because of the fuel. So assuming that you are getting a complete burn in your normal combustion cycle, the max chamber pressure should be the same as it is when it auto-ignites (detonation). The difference is that the auto-ignition will have a very rapid spike to that pressure, and the "normal" cycle will have a (relatively) longer build up to that pressure.

That's just talk though. Data from the book could tell us something else.

Originally Posted by MaTT_FoULk' date='Oct 17 2003, 12:47 AM

That has what to do with the topic at hand?

Originally Posted by Hassan' date='Oct 17 2003, 06:56 AM

[quote name='j9fd3s' date='Oct 16 2003, 10:11 AM'] ah ok, so you know how fc's always have 1 borken engine mount? and its always the same one? i think when you drop the clutch it tries to twist the motor, too much twist = broken rear plate.



mike

Originally Posted by Travis R' date='Oct 17 2003, 04:56 AM

The book I mentioned wasn't down at the shop. Sorry I couldn't come up with numbers.

But a friend of mine brought up the point that there is only so much energy available because of the fuel. So assuming that you are getting a complete burn in your normal combustion cycle, the max chamber pressure should be the same as it is when it auto-ignites (detonation). The difference is that the auto-ignition will have a very rapid spike to that pressure, and the "normal" cycle will have a (relatively) longer build up to that pressure.

That's just talk though. Data from the book could tell us something else.

Originally Posted by j9fd3s' date='Oct 17 2003, 10:52 AM

[quote name='Travis R' date='Oct 17 2003, 04:56 AM'] The book I mentioned wasn't down at the shop. Sorry I couldn't come up with numbers.

But a friend of mine brought up the point that there is only so much energy available because of the fuel. So assuming that you are getting a complete burn in your normal combustion cycle, the max chamber pressure should be the same as it is when it auto-ignites (detonation). The difference is that the auto-ignition will have a very rapid spike to that pressure, and the "normal" cycle will have a (relatively) longer build up to that pressure.

That's just talk though. Data from the book could tell us something else.

Originally Posted by BDC' date='Oct 17 2003, 11:05 AM

[quote name='j9fd3s' date='Oct 17 2003, 10:52 AM'] [quote name='Travis R' date='Oct 17 2003, 04:56 AM'] The book I mentioned wasn't down at the shop. Sorry I couldn't come up with numbers.

But a friend of mine brought up the point that there is only so much energy available because of the fuel. So assuming that you are getting a complete burn in your normal combustion cycle, the max chamber pressure should be the same as it is when it auto-ignites (detonation). The difference is that the auto-ignition will have a very rapid spike to that pressure, and the "normal" cycle will have a (relatively) longer build up to that pressure.

That's just talk though. Data from the book could tell us something else.