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VWDiesel.net The IDI, TDI, and mTDI source.
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lowering the compression
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Topic: lowering the compression (Read 2265 times)
February 28, 2008, 07:37:15 am
Benjamin
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lowering the compression
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on:
February 28, 2008, 07:37:15 am »
Is it possible to lower the compression when you take out the glow plugs and screw in just a bolt?
how much should the CR lower?
not for daily use, it will start with 'start pilot'
Greetz, Benjamin
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SMOG alert, engine running again!
Must make +250hp
Reply #1
February 28, 2008, 08:07:01 am
jimfoo
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lowering the compression
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Reply #1 on:
February 28, 2008, 08:07:01 am »
I'm sure it would lower a little, but not very much. I think the best way to lower it would be take some off the pistons where they have already been machined.
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Jim
1966 Land-Rover 88" with 1.9 1Z which has been transformed to an M-TDI
TFO35 mechanically controlled VNT, IC , and 2.5" exhaust.
Driven daily
Reply #2
February 28, 2008, 10:38:08 am
Benjamin
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lowering the compression
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Reply #2 on:
February 28, 2008, 10:38:08 am »
how can you calculate the change in CR when you know how much cc diffrence the bolt instead of the glowplug is.
Greetz, Benjamin
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Must make +250hp
Reply #3
February 28, 2008, 10:56:17 am
burn_your_money
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lowering the compression
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Reply #3 on:
February 28, 2008, 10:56:17 am »
Perhaps this page will help you
http://vwdiesel.net/phpBB/viewtopic.php?t=12633
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Reply #4
February 28, 2008, 04:17:16 pm
andy2
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lowering the compression
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Reply #4 on:
February 28, 2008, 04:17:16 pm »
I've got specially machined bolts to replace my glowplugs to help with lowering compression.I'm guessing that my Cr is 18.5-17.5:1 now with the masive prechambers that are in my head.
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VWDiesel.net The IDI, TDI, and mTDI source.
»
Engine Specific Info and Questions
»
IDI Engine
(Moderators:
malone
,
burn_your_money
,
Vincent Waldon
,
theman53
) »
lowering the compression