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Engine, Exhaust, Transmission Discuss the FR-S | 86 | BRZ engine, exhaust and drivetrain. |
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12-07-2021, 10:48 AM | #57 | |
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Quote:
It could easily pick up a good 5whp from leaning out, especially before any fuel trims have had time to learn and adjust. his "before" dyno shows 4 logs, first thing I said was asking him what those are... Are they all 4 baseline runs and he chose to go with the lowest one to make the results look better, probably when IAM was still .7 and the other 3 are at IAM 1, avg of the 3 other runs is 155.85 Which would be a 7.5WHP gain and picking up 4-5whp from leaning AFR means the intake netted basically 2-3WHP True gain which is in line with other testing and expectations of most CAI. OR is his "before" dyno with 4 runs the 3 higher are no mods but tuned, but then his is "after" dyno with the intake actually still has the no mod tune from his pervious tune, not necessarily tuned specific to the cai but still has a tune. So its still not an accurate comparison. Are these done on the same day? time is 10:20 and then 12:04 with 17 runs that would be pretty quick, so are they different days but then they could easily be different weather conditions temps and humidity could have dropped a lot between before/after if not same day.. All kinds of suspicions and un answered questions. but no one is suggesting and stating a 10whp+ pickup from .2-.5 leaner AFR not sure where you got that from. |
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The Following User Says Thank You to 86TOYO2k17 For This Useful Post: | x808drifter (12-07-2021) |
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