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Clutchmaster
10-15-2006, 05:11 PM
What is an Effective Compression Ratio..?
ryan89crx
10-15-2006, 05:21 PM
almost all compression ratios can be effective, it just depends who is tuning it
Clutchmaster
10-15-2006, 05:25 PM
I was using the the compression calulator and i put in my elevation and my ECR is like 9:65:1 but my static is 10:65:1 I was trying to realte this to how many llbs of boost i can use on a b7 bottom end. I want the most i can get until i replace the block. and when you refer to TUNE are you talking about like getting my ECU chipped with a good base map or like actually going to a Dyno?
ryan89crx
10-15-2006, 05:27 PM
I was using the the compression calulator and i put in my elevation and my ECR is like 9:65:1 but my static is 10:65:1 I was trying to realte this to how many llbs of boost i can use on a b7 bottom end. I want the most i can get until i replace the block. and when you refer to TUNE are you talking about like getting my ECU chipped with a good base map or like actually going to a Dyno?im talking about the actual tuning process after the ecu is chipped and everything

on a b7 bottom end at that compression ratio, i would not throw a turbo on it. it will only be a matter of time until you throw a rod out the side of the block
Clutchmaster
10-15-2006, 05:30 PM
im talking about the actual tuning process after the ecu is chipped and everything

on a b7 bottom end at that compression ratio, i would not throw a turbo on it. it will only be a matter of time until you throw a rod out the side of the block

what if I run a thicker HG?
ryan89crx
10-15-2006, 05:33 PM
why would you deck the head? that would bump the compression, a thicker HG would just compensate for the material you removed.

what thickness HG are you running as it sits? just buy a thicker MLS one to lower the compression.

or just wait until you have a 1.6 block
jimmyb34
10-15-2006, 05:37 PM
id ait until you get the 1.6 block to boost like yove previously mentioned.... i dont think a higher comp b7 is going to handle boost all that well either
mikeD16Z6
10-15-2006, 05:38 PM
or just wait until you have a 1.6 block


:TU:
Clutchmaster
10-15-2006, 05:39 PM
why would you deck the head? that would bump the compression, a thicker HG would just compensate for the material you removed.

what thickness HG are you running as it sits? just buy a thicker MLS one to lower the compression.

or just wait until you have a 1.6 block

sorry used the wrong terminology. I have a mini me that gives me the CR i have now. I didn't build the mini-me so my guess is only realtive as what HG they used