06-21-2025, 08:28 AM
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#2155
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Senior Member
Join Date: Jan 2017
Drives: brz 2017 hksv2
Location: italy
Posts: 2,292
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Quote:
Originally Posted by mkodama
Anyone have any ideas why I'm a bit down on power?
Rebulit my 2017 FA20 in April 2025 with higher compression ratio, had 3 track days already without issue, but did a dyno yesterday and I'm down double digit power compared to before the rebuild(stock compression ratio). E85 freeway mileage is as good as 91AKI mileage, and cold starts happen first try now, so that's good. I'm trying to learn the software/tuning part of things now, so any good links for reading appreciated.
13.5:1 CP Carrillo pistons
Open Flash Tablet E85 tune
JDL headers, over pipe, front pipe, no cats
https://datazap.me/u/mkodama/log-174...4?log=0&data=1 |
make it leaner and raise ignition advance
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