Has anyone deleted the resonator in the stock airbox? or made a larger snorkel?

[NickFRS]

Originally Posted by vtmike

It's secure. The resonator has some play in it when attached to the box so no loss in rigidity.

Also after having the resonator off and getting some more seat time in the induction noise is louder at about 2500-3000 rpms when the engine is under load. Not much difference in sound at other rpms.

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After my BRZedit custom dyno tune you can hear a noticed difference from 3k-redline.

[NickFRS]

Also something to consider is the throttle body/after MAF is a bottle neck. there isn't really any reason to get an intake thats huge and not alter the throttle body. You wont see any real gains. My whole reason to delete the resonators is to get more sound from the intake, which i accomplished. Also the car seems to be extremely responsive and smooth after the tune. Don't really see the need for a CAI. I even try to convince someone to let me swap the CAI on the car and go get it retuned to see if there are any true gains with the drop in filter w/silicone inlet tube w/resonators deleted vs the CAI. But this is a maybe due to the fact it will cost me $200 bucks unless I can find a shop to do it for free purely for the community.

[Turdinator]

Originally Posted by NickFRS

Also something to consider is the throttle body/after MAF is a bottle neck. there isn't really any reason to get an intake thats huge and not alter the throttle body. You wont see any real gains. My whole reason to delete the resonators is to get more sound from the intake, which i accomplished. Also the car seems to be extremely responsive and smooth after the tune. Don't really see the need for a CAI. I even try to convince someone to let me swap the CAI on the car and go get it retuned to see if there are any true gains with the drop in filter w/silicone inlet tube w/resonators deleted vs the CAI. But this is a maybe due to the fact it will cost me $200 bucks unless I can find a shop to do it for free purely for the community.

From all reports the throttle body on our FA20 is huge for a 2lt engine. The manifold may present a bottleneck but i doubt the throttle body is.

[vtmike]

Originally Posted by NickFRS

Also something to consider is the throttle body/after MAF is a bottle neck. there isn't really any reason to get an intake thats huge and not alter the throttle body. You wont see any real gains. My whole reason to delete the resonators is to get more sound from the intake, which i accomplished. Also the car seems to be extremely responsive and smooth after the tune. Don't really see the need for a CAI. I even try to convince someone to let me swap the CAI on the car and go get it retuned to see if there are any true gains with the drop in filter w/silicone inlet tube w/resonators deleted vs the CAI. But this is a maybe due to the fact it will cost me $200 bucks unless I can find a shop to do it for free purely for the community.

The stock throttle body is over sized and not a restriction. Most say there is no need to upgrade it.

I still think there are gains to be had in a good cai. Perrin said the gains they saw on their panel filter were actually more to do with changing the air/fuel ratio than air flow. Their cai still made more power than the drop in filter while running closer to stock a/f ratio.

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[Cade01]

Originally Posted by sierra

Do you have yours with those 2 ports open for extra airflow?
If so have you noticed any gains at the top end?

I haven't removed the resonators on the snorkel yet, just all the others. I can't really say on the top end gains, I installed the Nameless Performance cat less front pipe, axle back, and a K&N filter at pretty much the same time, so I'm feeling some pretty big gains on the butt dyno.

[sierra]

Originally Posted by NickFRS

Also something to consider is the throttle body/after MAF is a bottle neck. there isn't really any reason to get an intake thats huge and not alter the throttle body. You wont see any real gains. My whole reason to delete the resonators is to get more sound from the intake, which i accomplished. Also the car seems to be extremely responsive and smooth after the tune. Don't really see the need for a CAI. I even try to convince someone to let me swap the CAI on the car and go get it retuned to see if there are any true gains with the drop in filter w/silicone inlet tube w/resonators deleted vs the CAI. But this is a maybe due to the fact it will cost me $200 bucks unless I can find a shop to do it for free purely for the community.

You guys beat me to it!!!:happy0180:

The throttle body internal diameter is 65mm which is exactly twice the cross sectional area of the 46mm internal dia of the stock cold air intake.
This snorkel is looking like a must fix item.

[NickFRS]

Originally Posted by vtmike

The stock throttle body is over sized and not a restriction. Most say there is no need to upgrade it.

I still think there are gains to be had in a good cai. Perrin said the gains they saw on their panel filter were actually more to do with changing the air/fuel ratio than air flow. Their cai still made more power than the drop in filter while running closer to stock a/f ratio.

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I have a hard time believing this because my car was running extremely rich even with the silicone inlet tube and drop in filter before my tune. I mean clouds of black smoke rich.

[NickFRS]

Originally Posted by sierra

You guys beat me to it!!!:happy0180:

The throttle body internal diameter is 65mm which is exactly twice the cross sectional area of the 46mm internal dia of the stock cold air intake.
This snorkel is looking like a must fix item.

In this case i'm feeling a need of moding before my car goes back on the dyno this week! Good to know. Thanks for the info folks. :happy0180:

[sierra]

Originally Posted by NickFRS

I have a hard time believing this because my car was running extremely rich even with the silicone inlet tube and drop in filter before my tune. I mean clouds of black smoke rich.

The drop in filter and silicone inlet tube must have altered the speed of the air through the MAF sensor and caused the ECU to supply more fuel than was actually required.

[vtmike]

Originally Posted by NickFRS

I have a hard time believing this because my car was running extremely rich even with the silicone inlet tube and drop in filter before my tune. I mean clouds of black smoke rich.

I'm not saying it was running lean but more lean than the stock filter according to perrin. They seem very thorough and transparent in their testing.

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[NickFRS]

Originally Posted by vtmike

I'm not saying it was running lean but more lean than the stock filter according to perrin. They seem very thorough and transparent in their testing.

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"Testing" is very hard to put data back to back. Unless the dyno pulls were in the same temp on the same dyno on the same day. Simply changing the temperature of air changes how much air is needed or how the car reacts. This also can change the amount of power the car makes. Unless they do back to back testing with parts I don't exactly trust data. Also it would be better if they used percentages then actual HP readings. I made a post about this and they ignored me lol

[vtmike]

Originally Posted by NickFRS

"Testing" is very hard to put data back to back. Unless the dyno pulls were in the same temp on the same dyno on the same day. Simply changing the temperature of air changes how much air is needed or how the car reacts. This also can change the amount of power the car makes. Unless they do back to back testing with parts I don't exactly trust data. Also it would be better if they used percentages then actual HP readings. I made a post about this and they ignored me lol

Their methods seem pretty legit to me.

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[Turdinator]

Originally Posted by NickFRS

I have a hard time believing this because my car was running extremely rich even with the silicone inlet tube and drop in filter before my tune. I mean clouds of black smoke rich.

Interesting. I have a Perrin foam filter and their silicon intake due to me this week. I will have to watch for this. Did you reset the ECU after install?

[NickFRS]

Originally Posted by Turdinator

Interesting. I have a Perrin foam filter and their silicon intake due to me this week. I will have to watch for this. Did you reset the ECU after install?

Yup! Keep in mind this was at 6k-redline hard shifts.