Hello everyone!

I am planning a minime build for my EG and I wanted to ask some questions.My plan so far is to take the d15 block and d16z6 head to make my minime build like so many before me. However I cannot wrap my head around two main things. My EG is a canadian model called CX (I live in Sweden), it is a 1.5 liter engine with a carborator. That engine is leaving the bay. Now, my plan is to go turbo and I plan on changing the connecting rods aswell as pistons to lower the compression. According to the d-series compression calculator

With d15 block and crank, z6 head, z6/y8 gasket and and estimated block decking and head milling of 1mm, I land at a compression ratio of 8.95:1.

Q1: Should I go even lower on the ratio? (8:95 sounds great to me?)
Q2: Does anyone know if I will have to get myself a new wiring harness with this wierd cx carborated d15 engine (My guess is yes?), or do I only need the d16 vtec ecu?

 

1) Do NOT mill the head/block 1mm. This is a terrible idea and will cause cam timing and T/B tension issues. Leave the head and block surfaces original unless you absolutely have to mill them... and then, only the minimum required AND purchase a Cometic head gasket that is the same increase in thickness as the amount removed from the head/block.

2) Modern engine management has made lowering the compression on an engine a thing of the past. There is nothing wrong with running something between 9 and 10:1.

3) Yes, you will have to change out your engine harness because you will no longer be using a carb. You will be going to multi-port fuel injection.