Quote:
Originally Posted by lucifer_product
The different between 20i and 28i is compression ratio 11:1 and 10:1 .
So max boost in 28i is 22PSI (from data that I found ) and 20i that I monitor is 12PSI
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In the uk this is incorrect, all the 2litre turbo z4’s have the 11:1 compression ratio. Check realoem.com and you will see all the engine parts are identical.
Can you post a link to the data you say you found?
Rob