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Discussion Starter #1
Yea I know it's not a tuner as such just a method to trick ecu to richen it up.

So far I've done very open exhaust, air box mod with tackagawa filter and a have a tb cam on order.

Can I run a big bore kit as well. Will prolly be the tb kit which is 184cc

Also I live in a hot climate 100f isnt uncommon (will I need a oil cooler)

I also only run premium fuel in it 98octane 95 in a pinch, which is available at every servo here.
 

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Are you in the US? Because fuel octane measurement differs between continents

98 in the UK and Europe is 91 in the US
 

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Most stock groms will run on just 87 octane in the USA with zero issues.

I use 91 octane in my BBK kit groms that have 181-4v engine in them and I find that Union 76 91 octane gas seems to run my engine a lot better than Chevron or Shell 91 octane.
 

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The main problem becomes with open loop fueling graph lines. For a bbk it just wont keep up even with the efie.

You could probably get away with a 143cc BBK, stock head and a mild cam paired with an efie and stock ecu just fine, But much bigger than that, with freer flowing head, bigger cam, opened exhaust, its going to be way lean up top.
 
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