Civic-EG.com Forum 3.3.1

- Sat Apr 05, 2014 10:12 pm #344140 Alright so a bit of preface before so y'all know how to help, I have an unconventional mini-me swap it's a d15b7 bottom end with a y7 head. It's running the b7 dizzy and wires it all works but I'm going to be chipping my ecu with a 89 tune and tradition tells me I need a hotter plug than the stock y7's that are in it. Which plugs are hotter?
TLDR: d15b7/y7 head b7 dizzy and wires. 89 tune. What plugs should I run?

Gas powered stick!

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- Sun Apr 06, 2014 3:41 am #344149 What is 89 tune? With the exceptions of any bolt-ons, the only advantage over a stock d15b7 that this setup has is the smaller combustion chamber of the y7 head bumping up the compression ratio a little bit. I don't have the link for the d series calculator handy, but lets say you gained 10 hp from the higher CR, putting you at 112 hp. I think the good ol oem copper NGK's would be fine.

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- Sun Apr 06, 2014 4:12 am #344151 The 89 (~92 aki) tune is a custom tune I had made because I wanted to take advantage of using the only fuel grade my family knows plus it allows me to have a wider use of the higher cr (~10.3:1) without heavy detonation.

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