GR86 Intake Sound Comparison: GR Cup Replica vs GR intake vs K&N intake
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- Опубликовано: 23 авг 2024
- The cup snorkel from Outbound Motorsports was on the car for all of these. Vid shows moderate acceleration, 1st/2nd pull from a stop, and a 30-80 pull in 3rd for each intake. The car's exhaust is fully stock in these videos. Captured with an Insta 360 using its built in mic, so the sound is OK, but isn't going to reproduce what you hear in car perfectly. All three sound better in real life than in this video, but the K&N is the clear champion in terms of intake noise.
The pulls from this video were in some older testing I did. I've since redone it under better controlled conditions, and after making a few tweaks with the K&N to make sure it was sealed properly. Before sealing it properly, it was slower than the stock airbox.
I did 5 30-80 pulls in 3rd for each on the same on-ramp starting at the same point based on a sign and timed them with a Dragy for each intake and the stock airbox. The stock setup (with the Cup Snorkel) averaged 8.07s 30-80. The GR averaged 7.91s 30-80, the Cup replica 7.94, and the K&N 7.93. This is with stock 18" PS4 tires, 50*F ambient, ~-500 feet DA, half a tank of 93, stock weight plus me, mats, and a tire pump in the trunk.
The cup replica intake is the full kit from Outbound with both resonators deleted (I did testing with each of them deleted individually and found neither mattered), the HKS intake tube (also doesn't matter in terms of power, but sounds cool), a JDM airbox without the carbon filter, and a drop in filter.
Great job with the sound clips and testing!
Is it my imagination, or does the K&N have more of that classic NA Honda type sound?
I need one!
Those k&n’s are loud
Nice! Been looking at getting the outbound motorsports kit, K&N definitely sounds the best in this vid though! It’s more than twice the price however… Did you have the sound generator unplugged filming this?
Yep, ASC was disabled in this, so the sound is all from intake/engine and the stock exhaust.
How snorkel with k&n sound ?
@@tareqshihabts The Outbound snorkel was installed with the K&N in this video.
Wow, i didn't realize the K&N was that apparent. I know it seems like a silly question but is the K&N your most preferred from an in person experience?
Appreciate the video!
I definitely liked the sound of the K&N the best. I’m pretty sure it performs comparably to a stock setup with the carbon filter removed, so if you’re willing to put in the effort to make it seal out hot air well, and sound it your first priority, it might be a good choice.
Why tf would you leave the window down when recording
Do you know if it is suggested to do a tune with aftermarket intakes on this car? I read that the stock intake resonator box is not just for sound deadening, but also something to do with the air turbulence/pressure for performance. I love the sounds of these aftermarket intakes but I'm hesitant if its worse for the car
Tuning generally isn’t needed unless you’re doing something like altering the size of the tube the MAF is in. The MAF sees how fast air is flowing, and the ECU does some math to compute the amount of air flowing in based on the speed of the air flowing by the MAF, and the volume of the pipe the MAF is in. As long as you’re not doing something that changes the relationship between the velocity of air flow and the volume of air flow, the ECU will compensate for any extra flow automatically.
It’s not in this video, but I did test acceleration with the resonators in place, and the performance was effectively identical to the cup replica/hks pipe setup in this video that has both resonators deleted. If anything, I was tending towards getting slightly faster acceleration with the resonators deleted, but it wasn’t a meaningful difference (a couple hundredths of a second at most). In the GR Cup race cars, Toyota removes both resonators from the intake. Between that and my acceleration testing, I’m about 99% sure they do nothing for performance.
does that snorkel actually make much of a difference? I'm curious to get one, and I'm also curious if you've done anything to seal off the K&N intake more. I just got the K&N installed on my car and I'm concerned that the intake box isn't sealed as much as it should be.
I did a ton of extra sealing. I got thicker weather stripping to seal the top of the box, I put a ziptie inside the grommet where the intake pipe enters the box and tightened it down to seal it, and placed additional foam rubber around the opening to the box where the snorkel comes in to seal that. Before I did so, the car was substantially slower from 30-80mph in third gear (timed using Draggy) than stock. The snorkel is really just for sound.
@@Charles-ee5mmwhen you say extra sealing, do you mean just sealing it against the hood?
@@beterbarker No. I also mean sealing where the pipe enters the box, and where the snorkel enters the box.
K and n filter element only?
Also, how long did it take for them to ship the inlet?
The K&N was the entire cai kit. I bought it used from another person, shipping times will vary from vendor to vendor.
How is the power gain with GR intake + oem snorkel?
I never dynoed it on the OEM snorkel. With the Outbound snorkel attached, I went from 207rwhp with the stock airbox to 220 with the GR airbox.