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Old 09-17-2021, 12:40 PM   #51
Dzmitry
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Quote:
Originally Posted by FR-S2GT86 View Post
The one major change that I noted that OP made (in post #24) was dropping compression ratio down from stock 12.5:1 to 10.5:1 but he stated that his tuner said that shouldn't have an affect on the operation of the engine. Are we all in agreement with his tuner?
I do recall that and just took assumption that his tuner was right. I guess you make a good point, but I don't know enough about that to comment. Certainly wouldn't hurt to ask around or ask another tuner possibly for confirmation.

From a little googling, it seems that in the case of compression ratio increasing, a tune is kind of required to change the timing. Can't find anything on decreasing the compression ratio in that regard, at least not from a quick search. It's something to think about.
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