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what compression ratio on a 2.0 zetec turbo

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Old Dec 5, 2006 | 09:50 PM
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escrst
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Default what compression ratio on a 2.0 zetec turbo

hi just been to my engine builder and he rekons on somthing around 9-1
im not sure if this is too high but they build reliable race engines and obviously he knows more than me.

we want to run a maximum of 2 bar boost and its got cams pistons rods all the arp bolts and stuff that goes with it autronic sm2 managment etc wot u guys rekon
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Old Dec 6, 2006 | 06:56 AM
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sas
should be good!
 
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From: fife
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The problem with running a higher CR is detanation, so aslong as you are running a proper ECU the mapper will be able to retard the ignition at med to high boost to prevent it.

I run 8.8:1 in my ZVH.

PS dont forget the extra loading on the head gasket at that CR and boost.

Simon.
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