997 Cold Air Options
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For a 997.2 car I would go with just a BMC filter or the like. For the 997.1 car the only intake I think that works is the X51 intake and even that by itself won't add to much hp other than the larger filter area that IanUk talked about. If you go the headers and cats then the X51 intake starts to make sense for the 997.1 cars. For the 997.2 cars it looks like they pretty much already have an X51 intake.
Dave
Dave
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Mdrums and ADias have both given good advice, from different angles.
The bottom line is that there is no such thing as a simple, inexpensive, bolt-on power adder for the 911. If you eliminate one or more of those descriptors, you will find some - but nothing is all three. Everyone has their opinion, mine is that with so many years of development, the Porsche engineers are the ones with any real tricks up their sleeves and most of those come from internal changes (not "bolt on").
To ADias' point, despite not having many options to make more power, the stock 911 (even the base model) generally has capabilities far exceeding 90% of its owners. On the street, people often search for more power as a way to "improve" the car. On the track where the car really shines, people generally find their own skills come up lacking before the car's capabilities.
So I would ask you this - WHY do you want more power? Is it for street or track? If its street, where will you use it and how? If its track, have you already conquered the car? If you can't definitively answer these my personal recommendation would be to save your money for now.
The bottom line is that there is no such thing as a simple, inexpensive, bolt-on power adder for the 911. If you eliminate one or more of those descriptors, you will find some - but nothing is all three. Everyone has their opinion, mine is that with so many years of development, the Porsche engineers are the ones with any real tricks up their sleeves and most of those come from internal changes (not "bolt on").
To ADias' point, despite not having many options to make more power, the stock 911 (even the base model) generally has capabilities far exceeding 90% of its owners. On the street, people often search for more power as a way to "improve" the car. On the track where the car really shines, people generally find their own skills come up lacking before the car's capabilities.
So I would ask you this - WHY do you want more power? Is it for street or track? If its street, where will you use it and how? If its track, have you already conquered the car? If you can't definitively answer these my personal recommendation would be to save your money for now.
Great question... I think my problem is that I'm comparing my Carrera to my Z06.... on the Z06 I went from 505hp at the fly to 565hp, and from 423 to 483hp at the wheels measured on a Dyno. 1) Ported throttle body, 2) K&N high flow air filter, 3) DMH Electric Cutouts to bypass the mufflers, and 4) Dyno ECU tune.
The Porsche engine and setup is totally different from the Z06... Cumulatively I was hoping that "relatively" inexpensive and similar mods would give me more hp....
What I'm after is street performance, I do not see myself taking the car to a track (perhaps once if convenient just to play within my limits for a day)... on the street, we live in the twisty roads of North Georgia.... I've seen too many youtube videos of cars playing in the twisties and going off the road or hitting trees... I'm not after twisty road driving at the limits either either...
I know 0-60 is cliche.... but I'm after Pure Acceleration..... I figure more hp, is always good in that regard.
If a new air filter wont necessarily give me more HP as I understand the current airbox is a true cold air set up.... for less than $300 bucks, if a set of BMC filters will allow more air flow and more Sound. The sound alone is worth it to me.
I really appreciate all the insight that's been offered in this thread.
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No change in sound. No change in power
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Great question... I think my problem is that I'm comparing my Carrera to my Z06.... on the Z06 I went from 505hp at the fly to 565hp, and from 423 to 483hp at the wheels measured on a Dyno. 1) Ported throttle body, 2) K&N high flow air filter, 3) DMH Electric Cutouts to bypass the mufflers, and 4) Dyno ECU tune.
What I'm after is street performance, I do not see myself taking the car to a track (perhaps once if convenient just to play within my limits for a day)... on the street, we live in the twisty roads of North Georgia.... I've seen too many youtube videos of cars playing in the twisties and going off the road or hitting trees... I'm not after twisty road driving at the limits either either...
On the other hand, if you bought it for a stop light cruiser who likes to mix it up with the locals in ad hoc light-to-light races, you may come away disappointed. Porsche (I'm pretty sure) has the most overall race wins of any manufacturer, but none of them were in NHRA/IHRA or any 1/4 mile competitions so the car is really built for that. Maybe you can better define what you mean by street performance? A base 911 can go faster than any reasonable or legal limits on any road.
I'm not sure if this helps or not, but its starting to sound like you're in the wrong brand for what you like most in a car.
I've still got one of the EVOMS ones in stock. The sound above 4.5Krpms is pretty neat
http://sharkwerks.com/products.php?pid=20
http://sharkwerks.com/products.php?pid=20
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you can improve exhaust and partially intake on NA 997 cars to provide more linear torque with some improvememt to hp as well. you were told already what to do - oiled filter into intake, 200cell cats and ecu flash. you can also try plenum if you like. but you will not get any miracles.
try to get TPC turbo solution if you want - that will give 140+ something horses.
Just released our 997.2 Agency Power Cold Air Intake kits - http://www.vividracing.com/blog/anno...997-2-carrera/
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I would not call anyone here an expert. The engineers at Porsche or the engineers on ALMS and Rolex teams are the experts.
I will only reply to posts with an answer based off my experience. I am not here to pull the wool over anyones eyes or give out false info.
So as far as cold air intakes go on a 997....you already have one and a really good one at that. In my opinion if you look at some of the better top tier tuners like Ruf or Manthey or example they use the stock air box with cars producing much higher HP than our stock cars. You are not going to find any real power with any other intake. However other intakes like the Evo or the Champion will give you more intake sound/noise. I use BMC air filters in my stock intake only because I can take them out twice a year and clean them.
I hope this helps.
I will only reply to posts with an answer based off my experience. I am not here to pull the wool over anyones eyes or give out false info.
So as far as cold air intakes go on a 997....you already have one and a really good one at that. In my opinion if you look at some of the better top tier tuners like Ruf or Manthey or example they use the stock air box with cars producing much higher HP than our stock cars. You are not going to find any real power with any other intake. However other intakes like the Evo or the Champion will give you more intake sound/noise. I use BMC air filters in my stock intake only because I can take them out twice a year and clean them.
I hope this helps.
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