engine compression vs knock



engine compression vs knock

Postby grumpyvette » May 31st, 2013, 10:33 am

"grumpy, how do I figure out how much compression I can get away with without having to deal with engine detonation issues"

theres dozens of factors like coolant temperatures, oil temperature, ignition advance curve , your engines quench, distance.
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obviously the fuel octane level, cylinder head combustion surface and the material the heads are made from,
heres a few links with related info to read thru,theres no absolute set compression, because theres dozens of factors that contribute to the potential problem,and ways to reduce an engines tendency to detonate under load, like thermal barrier coatings, use of knock sensors, oil coolers ,alcohol injection, etc.
and don,t forget about 80% of the related info you needs in the posted sub links


http://zhome.com/ZCMnL/PICS/detonation/detonation.html

viewtopic.php?f=52&t=727&p=32136&hilit=detonation#p32136

viewtopic.php?f=50&t=208&p=16848&hilit=calculate+octane#p16848

viewtopic.php?f=53&t=4390&p=11552&hilit=polish+chamber#p11552

viewtopic.php?f=50&t=208&p=244&hilit=detonation+damage#p244

viewtopic.php?f=52&t=5154

viewtopic.php?f=86&t=4484&p=11815&hilit=water+alcohol+injection#p11815

viewtopic.php?f=86&t=9078&p=32548&hilit=water+alcohol+injection#p32548

viewtopic.php?f=52&t=4715&p=12810&hilit=shroud#p12810

viewtopic.php?f=52&t=389&p=31694&hilit=iron+aluminum#p31694

viewtopic.php?f=52&t=4081&p=13146&hilit=calculate+octane#p13146

viewtopic.php?f=55&t=2718&p=12119&hilit=calculate+octane#p12119

viewtopic.php?f=53&t=3443&p=9118&hilit=calculate+octane#p9118

viewtopic.php?f=55&t=2718&p=7057&hilit=+octane+calculate#p7057
IF YOU CAN,T SMOKE THE TIRES AT WILL,FROM A 60 MPH ROLLING START YOUR ENGINE NEEDS MORE WORK!!"!
IF YOU CAN , YOU NEED BETTER TIRES AND YOUR SUSPENSION NEEDS MORE WORK!!
grumpyvette

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