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compression ratio.......


ctx46

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hello,

 

im going to be re-building my motor this fall, and Im looking to bump the CR up to 10:1 or 10.5:1... and Im wondering if the ecm would get confuzed @ all, or if I would run into any other problems because of it....

thanks

Joe

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just may have a rougher idle, need to use premium gas, the ecm might need some tuning to get the proper mixture at WOT. you planning on a high lift cam to benefit from the compression?

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I should benifit enoughf from the bump in compression to make it worth it... (all fo the machiening will be done for free :D ) and if they mad a cam for the LQ1, i would buy 4 of em... but they dont... (imagine that eh... lol)

 

I know about the idle and the premiun gas issue, but I just dont want to over look anything, and loose relyability...

 

later

joe

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Well, you could still use 87 gas but the tuning would need to be changed, likewise if you jump up to 91-93. So pretty much, it will need tuning.

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