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Engine, Exhaust, Transmission Discuss the FR-S | 86 | BRZ engine, exhaust and drivetrain. |
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10-18-2014, 10:26 PM | #1 |
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Skunk2 BRZ Intake Results!
A customer wanted to get every last HP out of a car, and we of course are more than happy to do what it takes. While some of the intakes have a large MAF housing, they require pinching of the primary tube to get past the smaller OEM bulkhead, or reuse the OEM snorkel that necks down to 2.5". None of those are valid options in our book. However, Skunk2 aka Kraftwerks/Grams/Group A, have released their intake which addresses many of those issues. Bigger snorkel, filter, and most importantly, a HUGE elbow from the filter to the TB. This is an example of good engineering, not just throwing parts at a car. The snorkel improvement is much needed IMO, and the large diameter elbow is the reason you see the gains throughout and not just at the very top end.
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10-18-2014, 11:27 PM | #2 |
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Very nice results!
What other mods does this car have? |
10-19-2014, 12:19 AM | #3 |
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Nice gains
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10-19-2014, 12:51 AM | #4 |
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Curious what the baseline was.
Was it tuned before the intake? |
10-19-2014, 01:25 AM | #5 |
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Need some more info!!!
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10-19-2014, 01:43 AM | #6 |
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AFRs?
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My car is completely stock except for all the mods.
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10-19-2014, 01:49 AM | #7 |
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Mike, do you happen to have any AFR data from this pull? The gains certainly look nice, but without AFR data, it's hard to know how much of that power increase is "real".
What I mean by this is some intakes I've seen made extra horsepower by running leaner (sometimes dangerously so at WOT). Even if it's not dangerously lean, the intakes that show signficantly different AFRs than stock almost always show lesser gains once properly tuned, as they don't have the same amount of tuning room due to starting leaner already. |
10-19-2014, 05:53 AM | #8 | |
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Quote:
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10-19-2014, 06:14 AM | #9 |
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Because less air passes the MAF sensor, making the ECU inject less fuel.
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10-19-2014, 06:39 AM | #10 |
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10-19-2014, 07:37 AM | #11 |
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So, roughly 5-6 HP? About what a drop in filter would give you? 5 HP in a 2900-3000 lb. car(with driver) is something I don't think you could ever measure...
The OEM engineers just keep looking smarter & smarter. 😊
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10-19-2014, 08:21 AM | #12 | |
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It is built for the SCCA STX class, so header, exhaust, tune etc...running ethanol for both pre/post intake.
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For the $$$ 5-6 hp is quite good. No drop in filter will make 5 hp on this car in an accurate test. Maybe 1-2 when a forced induction setup is using the OEM air box, but even then I'd say it is optimistic. |
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10-19-2014, 10:10 AM | #13 |
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Have this intake. The butt dyno loves it. The sound it makes at around 4500 rpm sounds so nice
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10-19-2014, 11:25 AM | #14 | |
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No disrespect, but do you have some data to back that statement up? It's been long accepted on these forums that performance drop-ins like the K&N, HKS, and aFe have dyno'd 5 HP over stock on a bone-stock 86. |
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