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Old 10-16-2020, 09:50 AM   #3129 (permalink)
Spooler
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I can tell the difference between 10:1 and 11:1. Mark and I decided to drop the compression ratio to give a little more headroom in tuning. I notice the most difference between the two in the additional lag on tip in at lower rpm. Comparing the dyno graphs you can see it. I had to give up a little bit on the bottom to gain more on the top. No way would I go lower than 10:1. I am still not sure how I feel about it. For the boost levels I wanted to end up at I had no choice but to drop it.
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