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Old 05-16-2015, 04:05 PM   #1
ImprezaLover94
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Default Short ram intake question

I have the stock intake but I am going to get a protune this summer so I am looking at other possibilities to maximize HP and minimize turbo lag (and I won't lie, the sound is pretty nice as well). The Cobb short ram intake seems to be a popular choice. You can get this intake system with just the short MAF section and the filter or you can also get the airbox so that it shields the intake filter from the hot temperatures in the engine bay.

My question is: Does the airbox really make that much of a difference?

Yes, you can record intake temperatures and notice a big difference in the actual temperatures of the intake. However, in our turbocharged cars this intake goes directly to the hot turbo, so does the temperature really make a difference in terms of the temperature of the actual air temperature that reaches your heads? In other words, if the short ram sucks in 100 degree air compared to the airboxed intake sucking in 70 degree air, wont they both equally heat up after passing through the turbo and then equally cool down after passing through our intercooler?
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Old 05-16-2015, 06:25 PM   #2
drewmob
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There is a mighty car mods episode on pod filters that you should watch on YouTube.
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Old 05-16-2015, 07:45 PM   #3
04ScoobyWtf
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Colder I take in equals colder intake out means more power no reason to skimp if your halfway there
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Old 05-16-2015, 09:51 PM   #4
Uncle Scotty
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Quote:
My question is: Does the airbox really make that much of a difference?
without any possible doubt.....hot air is a killer of motors

and there is NO way in hell id do a cai if I could find an APS or other PROPER CAI that works PROPERLY.
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Old 05-17-2015, 02:33 AM   #5
ImprezaLover94
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Quote:
Originally Posted by drewmob View Post
There is a mighty car mods episode on pod filters that you should watch on YouTube.
I've seen it before. However, many people correctly point out that only tuning will get the maximum gains out of something. Just tossing something on certainly may not make the drastic changes one would expect. But like I said, I am going to get a tune. I can put on whatever I want and specifically seek to maximize its gains.
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Old 05-17-2015, 02:42 AM   #6
ImprezaLover94
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Quote:
Originally Posted by 04ScoobyWtf View Post
Colder I take in equals colder intake out means more power no reason to skimp if your halfway there
Even after it runs through a turbocharger? I understand it would be directly cooler for a N/A engine, but wouldn't the turbo heat the air up equally (regardless if it was a few degrees cooler initially)? In addition, the intercooler should then bring them both down to nearly the same temperature, I would imagine.

If anyone has done research on this, let me know. I can't seem to find any direct temperature comparisons of intake air pre-turbo, post-turbo, and post-intercooler between CAI and short ram intakes.
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Old 05-17-2015, 11:20 AM   #7
Uncle Scotty
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Quote:
Originally Posted by ImprezaLover94 View Post
I've seen it before. However, many people correctly point out that only tuning will get the maximum gains out of something. Just tossing something on certainly may not make the drastic changes one would expect. But like I said, I am going to get a tune. I can put on whatever I want and specifically seek to maximize its gains.
Quote:
Originally Posted by ImprezaLover94 View Post
Even after it runs through a turbocharger? I understand it would be directly cooler for a N/A engine, but wouldn't the turbo heat the air up equally (regardless if it was a few degrees cooler initially)? In addition, the intercooler should then bring them both down to nearly the same temperature, I would imagine.

If anyone has done research on this, let me know. I can't seem to find any direct temperature comparisons of intake air pre-turbo, post-turbo, and post-intercooler between CAI and short ram intakes.



you are going to blow it up anyway


cold air into the turbo is easier for the turbo to compress to make boost...this heats that air less = more boost sooner

cold(er) air is denser---see above....this air has more oxygen in it....more oxygen + more fuel =????

POWER

I could go on for a while here

but....lets just leave it at that for the moment.


because it wont matter anyway

I could give you a list of 10 things to do to make more power, more safely but you wouldn't do any of them because it aint k00
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Old 05-17-2015, 12:14 PM   #8
wodom86
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What are your current mods? How much power are you trying to push? Its been proven that EL headers, DP, and upgraded boost controller along with a PROPER tune decrease spool time dramatically. I personally replaced my intake with cobb SF with box and wrapped the box in A.C. tape. I only replaced my intake because the previous owner of the car broke a mounting tab causing it to rattle. I would spend your money elsewhere first
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Old 05-17-2015, 09:48 PM   #9
TwistedAxles101
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Old 05-18-2015, 03:58 PM   #10
danger1138
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Quote:
Originally Posted by wodom86 View Post
What are your current mods? How much power are you trying to push? Its been proven that EL headers, DP, and upgraded boost controller along with a PROPER tune *INCREASE* spool time dramatically. I personally replaced my intake with cobb SF with box and wrapped the box in A.C. tape. I only replaced my intake because the previous owner of the car broke a mounting tab causing it to rattle. I would spend your money elsewhere first

Fixed it for ya
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Old 05-18-2015, 06:23 PM   #11
ImprezaLover94
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Currently I have:
Perrin Catback
Grimmspeed uppipe
Invidia V2 catless downpipe
Perrin 2.4" turbo inlet
Perrin Afta-MAF tube
Stock airbox, snorkel, "ram scoop", with an Apexi filter
Cobb EBCS
NGK BKR6EIX
Grimmspeed Lightweight Crank Pulley

I am adding on the new Mishimoto TMIC, Walbro 255lph, and Injector Dynamics 1000cc. I was planning on running DW 650cc injectors, but IAG Performance told me they don't like DeatschWerks and I should get the ID 1000cc. I am running the stock TD04L-13T (I have a used one with 20k miles on the way- I am going to port and polish it and, depending on its condition, may rebuild it). The ID 1000cc seems like overkill for basically a Stage 2 car but that is what they recommended.
I will probably just stick with the stock airbox. I may or may not remove the snorkus.

Last edited by ImprezaLover94; 05-19-2015 at 11:55 PM.
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Old 05-18-2015, 06:24 PM   #12
ImprezaLover94
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Originally Posted by danger1138 View Post
Fixed it for ya
Wouldn't it decrease spool time? In theory a proper tune with supporting mods should make the turbo spool up quicker.
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Old 05-19-2015, 10:28 AM   #13
danger1138
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Quote:
Originally Posted by ImprezaLover94 View Post
Wouldn't it decrease spool time? In theory a proper tune with supporting mods should make the turbo spool up quicker.

You are right my bad.
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