Short Ram vs CAI
- Thread starter Alladin
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TX Speed 6
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- Mazdaspeed 6
I don't have a SRI, I have a CAI, but in Houston, with the amount of rain you'll probably get I recommend the SRI for safetys sake. From what I understand the SRI is louder. The CAI you'll just hear some whoosing from air entering the turbo, not too loud but sounds good.
SilverSquish
Member
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- 2007 MazdaSpeed 6
So will Mazda replace your engine if you hydro-lock it using the MazdaSpeed CIA? I much prefer a CAI, but from everything I'm reading it seems like most people here suggest a SRI for safety's sake. That makes me very hesitant about buying a CAI.(nervous)
TX Speed 6
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- Mazdaspeed 6
No they will not... from first hand experience... my wife hydrolocked the car with the Mazdaspeed CAI. Insurance covered it, but Mazda will not. From what I understand its discontinued now, but I don't remember. I got the MS cai so my dealership wouldn't bug me when it comes to warranty repairs, but I would prefer an SRI once the warranty is gone.
After doing some more reading I'm not sure I want to replace the stock airbox now. Seems like alot of people are saying it's really loud with an aftermarket intake. Do you hear the growl of the engine at all or is it just loud wind noise from the air being sucked in?
Yeah if you hydrolock your car its your fault. Similar to if you burn up your clutch or brakes. The mazdaspeed intake has been re-released with the air straightener.
And yes the wind sucking noise is quite loud when you step on it. If your just cruising you wont really hear it. You can still hear the engine but the intake is definately more noticable. Most people like the air noise but if you decide not to get the intake think about a drop in K&N filter. Not as good as an intake but free's up a couple ponies.
And yes the wind sucking noise is quite loud when you step on it. If your just cruising you wont really hear it. You can still hear the engine but the intake is definately more noticable. Most people like the air noise but if you decide not to get the intake think about a drop in K&N filter. Not as good as an intake but free's up a couple ponies.
sport compact car did a very interesting analysis on the cai vs short ram.
it explains how the length of the intake affects the frequency at with the air is charged and put into resonance. its at this resonance in which the intake is most effecient at increasing power.
the frequency of the resonance also dictates where in the power band the intake makes its largest gain.
longer pipes have a lower internal resonance, this lower frequency will effect the lower portion of the power band. shorter pipes have a higher frequency, thus giving larger gains in the upper portion of the power band.
this resonace is only a small part of intake design, but nonetheless signifigant.
the article explains it much better than i however i cant find it on their website. they used and 08 wrx as their test bed, and it was k&n short ram vs stock vs fujita i think.
its worth digging up and reading twice.
particularily, the part about how the aftermarket intake flows less, and fools the ecu, yada yada yada. i think i need to read it again as well.
(excuse my spelling)
it explains how the length of the intake affects the frequency at with the air is charged and put into resonance. its at this resonance in which the intake is most effecient at increasing power.
the frequency of the resonance also dictates where in the power band the intake makes its largest gain.
longer pipes have a lower internal resonance, this lower frequency will effect the lower portion of the power band. shorter pipes have a higher frequency, thus giving larger gains in the upper portion of the power band.
this resonace is only a small part of intake design, but nonetheless signifigant.
the article explains it much better than i however i cant find it on their website. they used and 08 wrx as their test bed, and it was k&n short ram vs stock vs fujita i think.
its worth digging up and reading twice.
particularily, the part about how the aftermarket intake flows less, and fools the ecu, yada yada yada. i think i need to read it again as well.
(excuse my spelling)
TX Speed 6
Member
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- Mazdaspeed 6
Yeah, I have the issue (their last sadly) basically... CAI better for low end torque, SRI better for high rpm horsepower given a stock ecu/maf. Its a really good article, I'll miss sport compact car
TX Speed 6
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- Mazdaspeed 6
aem bypass valve does not work on turbo cars
TX Speed 6
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- Mazdaspeed 6
it was not stated whether the car was turbo or not
You got me there..... sorry, I always forget the 6 section isn't just for the Speed 6 so I assume too much!
TX Speed 6
Member
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- Mazdaspeed 6
If your asking about the Sport CC article, it was only a difference of 3-5 hp and or lb tq between the two either way. This was tested on a wrx, though, so I'm not sure what it might do on the MS6.
The reason your car needs help at higher rpms is cause the turbo is past its efficiency past around 5500 rpms, either intake won't help much with this
The reason your car needs help at higher rpms is cause the turbo is past its efficiency past around 5500 rpms, either intake won't help much with this
