Zeffer's Product Review: K&N Short Ram Intake - Page 3 - Mazda 6 Forums : Mazda 6 Forum / Mazda Atenza Forum
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post #21 of 39 (permalink) Old 01-04-2017, 04:38 PM
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@tickerguy is doing a great job with all of this data, so I'll add mine:

After removing the K&N intake and reinstalling the OE airbox, my instances of exclaiming "fuck this piece of shit car" while the engine bogged from a stop went down significantly. The reduction of instant torque due to the hot engine bay air getting pulled in initially is hell for MTX drivers.
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post #22 of 39 (permalink) Old 01-04-2017, 05:31 PM Thread Starter
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Originally Posted by Donkey Grundle View Post
@tickerguy is doing a great job with all of this data, so I'll add mine:

After removing the K&N intake and reinstalling the OE airbox, my instances of exclaiming "fuck this piece of shit car" while the engine bogged from a stop went down significantly. The reduction of instant torque due to the hot engine bay air getting pulled in initially is hell for MTX drivers.
Oh god, so much this. Not the bogging, but the exclamation. I'm fairly handy, but when I run into a snag I get stuck on, it's always that. "F**k this bullshit dumpster fire of a car."

On the bogging, never had the issue with an AT transmission, even in sunny Florida in 100 degree days. It would go whenever I asked it to.


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post #23 of 39 (permalink) Old 01-04-2017, 09:16 PM
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The AT masks the seat of the pants feeling, but not the impact on your acceleration times.

There's nothing like sucking a big chunk of 150F air down the intake to screw you; the ECU instantly pulls timing (if it didn't you'd blow a hole in a piston from detonation!) and there goes the torque.
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post #24 of 39 (permalink) Old 01-04-2017, 09:34 PM Thread Starter
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I was thinking it'd be a more numb drive. I floor it all the time. I don't drive like a dick, but when I can get on it, I will. Haven't noticed any changes in acceleration, except for today.

You know how when you press the mechanical kickdown, it raises the rev limiter? Mine was hesitating at the top of the range. It would pause as if unsure, and then rev up again. Strange. It was 50 degrees out too.


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post #25 of 39 (permalink) Old 01-04-2017, 09:41 PM
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It's 50F out but it's 120F (or more) in the engine bay..... especially if you're in the city (e.g. not moving fast enough to turn over the air in the engine bay quickly.) The air in the engine bay has passed through the radiator and of course the job of the radiator is to take the heat in the coolant and transfer it to the.... air!

BTW there is no "mechanical" kick-down on these cars. AT vehicles have a fake "kick down" detent at the bottom of accelerator pedal travel but it isn't wired to anything. The ECU does read the last few percent (beyond the detent) however, as "downshift if RPMs are safe to do so". MT cars do not have the faux detent "switch."

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post #26 of 39 (permalink) Old 01-04-2017, 10:10 PM Thread Starter
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Quote:
Originally Posted by tickerguy View Post
It's 50F out but it's 120F (or more) in the engine bay..... especially if you're in the city (e.g. not moving fast enough to turn over the air in the engine bay quickly.) The air in the engine bay has passed through the radiator and of course the job of the radiator is to take the heat in the coolant and transfer it to the.... air!

BTW there is no "mechanical" kick-down on these cars. AT vehicles have a fake "kick down" detent at the bottom of accelerator pedal travel but it isn't wired to anything. The ECU does read the last few percent (beyond the detent) however, as "downshift if RPMs are safe to do so". MT cars do not have the faux detent "switch."
Well, naturally. I'm pulling cold air from three inlets: factory + two more, with heat shielding. I don't think it's a temperature issue. This was also while cruising back roads.

What else is it called? It's a physical kickdown. This is my first A/T vehicle with a kickdown, and in our 6, it downshifts to the lowest gear possible, and raises your rev limiter (or at least shifts later) as long as it's held down.

My issue was that, while pedal to the metal, when it hit that rev limit, it hesitated, then continued to gas. A similar effect to the fuel being cut, rather than being starved for air.


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post #27 of 39 (permalink) Old 01-04-2017, 10:17 PM
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I really wish there was more knowledge out there from the general public on SRI's. The public is broken up into three groups.

1.) Those that know the truth and wouldn't touch one if it was given to them for free. 2.) Those that know they are getting robbed performance but don't care because they like the sound. 3.) Those that swear their car is faster because of their SRI (this group is the most frustrating because their butt dunno is way off). I also swear that the last group are paid moles by K&N themselves.

The reality is these things are completely pointless in modern cars and do absolutely nothing other than offer a really cool sound upon acceleration. I've been a part of over a dozen car forums in the last 10 years and each forum has people that fall into these groups. However cars that are more performance oriented usually have more group one followers where cars such as the Mazda 6 that don't have a lot of upgrade options usually have more group two and three followers.


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post #28 of 39 (permalink) Old 01-05-2017, 07:20 AM Thread Starter
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Originally Posted by my95tsi View Post
I really wish there was more knowledge out there from the general public on SRI's. The public is broken up into three groups.

1.) Those that know the truth and wouldn't touch one if it was given to them for free. 2.) Those that know they are getting robbed performance but don't care because they like the sound. 3.) Those that swear their car is faster because of their SRI (this group is the most frustrating because their butt dunno is way off). I also swear that the last group are paid moles by K&N themselves.

The reality is these things are completely pointless in modern cars and do absolutely nothing other than offer a really cool sound upon acceleration. I've been a part of over a dozen car forums in the last 10 years and each forum has people that fall into these groups. However cars that are more performance oriented usually have more group one followers where cars such as the Mazda 6 that don't have a lot of upgrade options usually have more group two and three followers.


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Heheh, guilty of being a part of group two. If there wasn't such a fun factor attached to the sound, I wouldn't have one either.


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post #29 of 39 (permalink) Old 01-05-2017, 10:20 AM
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Its funny how different people can perceive the same thing in radically different ways, isn't it?

I've run K&N intake products on many cars that I've owned and have had all three of my95tsi's impressions. I had a GTI where the intake actually degraded low end performance (actually not a K&N product, btw) - but this wasn't noticeable until I switched back to the stock box. I've had cars where the intake didn't seem to do anything but make noise. And I've had cars where the intake "seemed" to enhance performance on the top end. My M6 is one of those cars, seeming to pull stronger from 4k on up with the K&N intake on vs. the stock box.

I'm open to the idea that what I'm feeling may not, in fact, be what's happening...but, has anyone actually run back to back dyno sessions (stock box vs. K&N) on a 3rd gen M6? The only one I've ever seen is the one published by K&N.


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post #30 of 39 (permalink) Old 01-05-2017, 11:05 AM
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This discussion is frustrating to read, especially since i just purchased a SRI. I hope I can afford to dyno it and put this to rest at-least for myself.
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