Cobb Tuning Subaru Legacy GT SF Intake

[gordy]

Hey Guys,

Im looking at improving the intake before I get my new turbo bolted on and tuned. Initially I wasn't that keen on an intake, but after talking to Pulse I think the noise is going to be worth the gain.

I like the look of the hyperflow CAI that sits in the guard, but I'm a little worried about water getting in. There is a road near my house that quite often floods a little when it rains (think deep puddles). Since NSW is broke I cant imagine this getting fixed anytime this century. I'm also worried about how effective its going to be in the guard. I considered getting a plastic welder to put a little air duct in the plastic cover for the front bar but thats going to all end up costing a few $$'s.

Apart from the AVO, I don't really see anything else in Australia so ive been looking overseas. Does anyone see why the Cobb Tuning Subaru Legacy GT SF Intake wont fit (http://www.fredbeansparts.com/servlet/t ... acy/Detail). It comes with the MAF pipe too so all up its not a bad deal. Im just wondering if anyone can see a reason why it wont fit (given that it was designed for USDM). Or is there another option I've missed?

Thanks in adv...

Gordon

[senator]

regarding the duct, save your self the issue of trying to plastic weld a vent into the bumper, have you considered ducting the air from around the fog light surrounds? The plastic grill around the fog light can be drilled to draw air into the guard. Also i don't think water will be an issue with our cars, as the inner guards a well sealed by the under body pan......imo

btw also check out silly sore intake which is posted in the mods sections.

[gordy]

Thanks, I cant see the pics in sillysore's thread (too small). Might send him a PM later though.

I agree that there is little chance of water getting in, but it still worries me, if you had the turbo spooled up and you got a decent splash of water in the wheel arch then surely you do run the risk. I guess one positive is that you could probably dynamat the wheel arch to quiet it down a little, although I guess you could do that with the cobb aswell....

[smythie]

I'm yet to be convinced that any gains will be seen from sucking air from the inner guard. One day I'll get some instrumentation into my air intake and see whether there is any reduction in pressure drop or if there is any increase in intake temperature...

[dwayne]

I'm yet to be convinced that any gains will be seen from sucking air from the inner guard. One day I'll get some instrumentation into my air intake and see whether there is any reduction in pressure drop or if there is any increase in intake temperature...

FYi I'm betatesting the new ECUDataScan at the moment and it reports those figures.

Dwayne

[smythie]

the numbers I'm interested in would be:
- pressure and temperature differentials between the outside atmosphere and the engine bay,
- pressure and temperature differentials between the outside atmosphere and the intake near the butterfly with stock intake,
- pressure and temperature differentials between the outside atmosphere and the intake near the butterfly with an inner guard "cold air" intake
- pressure and temperature differentials between the outside atmosphere and the inlet of the stock air intake duct
- pressure and temperature differentials between the inlet to the airbox and the outlet of the airbox

I'd be looking to get these numbers on both hot and cold days (no wind), at a set speed of 60km/h for example on the same piece of flat, traffic free road

[cpitts]

Thanks, I cant see the pics in sillysore's thread (too small). Might send him a PM later though.

I agree that there is little chance of water getting in, but it still worries me, if you had the turbo spooled up and you got a decent splash of water in the wheel arch then surely you do run the risk. I guess one positive is that you could probably dynamat the wheel arch to quiet it down a little, although I guess you could do that with the cobb aswell....

You realise that cutting the side out of the front half of the airbox will achieve this same 'cool air' result?

Also keeps the noise to a reasonable minimum AND you actually get excellent filter surface area. Ultimately, the reason to move to a pod is:
1. Increase venturi effect reducing intake resistance as air is sucked into the turbo (side effect is that the MAF can't read the air volume correctly, leading to air mixture issues.
2. Increase surface area of filter (on most pod filters, a high flow filter will resolve this)
3. Increasing MAF pipe diameter (again significant ECU updates required to suit new MAF sensor, etc)

So, what power number are you aiming for that dictates the above requirements??

[gordy]

Hoping for 220Kw ATW, from what I read the turbo will probably be out of breath beyond this. Of course its the torque that really matters though.

Cutting the airbox isnt a great option for me. I really want to keep all mods legal. No sealed airbox is a no-no in NSW. Im also looking at fitting it before my tune, so ECU changes aren't a big issue. Adam at Pulse did say that a panel filter will make a difference, but he also said its not going to be as much as a pod/cai setup, thats whats lead me to look at one of these.

[Gambit]

Did you end up getting the airbox?

I highly recommend the Cobb tuning airbox, as it accepts the stock intake snorkel and is generally a pretty easy install, anyhow here is a video of an install:

http://www.youtube.com/watch?v=EAah5rtGFO8

[rooby]

Gambit:

I'm looking at getting the Cobb air box, did you get yours direct from Cobb or from a dealer somewhere in Australia?

[Gambit]

Gambit:

I'm looking at getting the Cobb air box, did you get yours direct from Cobb or from a dealer somewhere in Australia?

I got mine from Jay Racing in the states:
http://www.jayracing.com/index.php?main ... th=154_153

plus postage and with the AUD at the moment, they are a bargain !

[rooby]

Cool thanks, I just placed my order

First (and not last) mod for my new car.

[thiele]

How did the install go?
Does the buttdyno approve?!

[Austin939]

I also want to know as im looking at buying it now

Any power increases?