Most Power Thru A Std Rb25 Intake Pipe

[bozodos]

pretty sure that the first bend of the piping is the original hard piping yes. BOV return has been welded up though!

[Harey]

  bozodos said:

pretty sure that the first bend of the piping is the original hard piping yes. BOV return has been welded up though!

Ah nice one! That was where i thought nah too hard basket. Pics or ban

[bozodos]

yeah pics when I cbf going out and taking them of my filthy as engine bay lol

[Harey]

Should have listened to you Manuel and Tao!

Had my car on the dyno yesterday and with the sleeved factory intake pipe it would not make more than 250rwkw as the part close to the turbo where it is still 2.5" is sucking shut. Bugger!!

Off to get a custom intake made up and back on the dyno.

[HEKT1K]

i thought you said you made 279rwkw (in your first post)?

[Harey]

  HEKT1K said:

i thought you said you made 279rwkw (in your first post)?

That was with a temporary custom 3" intake pipe. The problem is that it did not have spots for the bov return and the breather which I want. So then I tried putting the factory intake back on with the pipe inside. That is when it would not make more than 250rwkw and I know which just the 3" intake changed it made 279rwkw.

[HEKT1K]

Ah ok. Did you plumb up the BOV return and breather? I guess it would be easy to make your own intake if you didn't have to make room for them

[Harey]

First setup:

Custom 3" intake, bov blocked off and breather hose to atmosphere.

279rwkw

Second setup:

Factory intake with pipe, all factory fittings so bov and breather connected to intake as per factory

250rwkw with intake sucking shut.

Next setup:

3" metal intake with bov and breather fittings.

[STATUS]

yeah you will need to sleeve the bottom part or go a new intake pipe. They generally dont suck the bottom part shut but yours is making a meal of it...

[wolverine]

What filter are you using?

[Harey]

  wolverine said:

What filter are you using?

Apexi Power Intake

https://www.justjap.com/store/product.php?p...cat=&page=1

Trent said he had seen some big power setups with this pod so didnt think it was a problem.

[wolverine]

You should have been fine with it.

An overoiled filter is a different story, so go figure.

[Fry_33]

  Harey said:

Ok I suppose its less prone to sucking shut near the turbo, would be smoother and seems to have more space around the fittings so that they dont disrupt flow.

Do these metal rings do anything?? This pipe is exposed to suction not boost. I would have thought metal rings on the outside of the hose would only help under boost, ie to stop it bulging out as much? The JJR one looks to just be a rebranded Autobahn 88 one. I bought one of the Autobahn ones a while back and wasn't impressed by the fit (or lack thereof) at all. No matter how I tried to trim it the thing just didn't sit right.

I have issues with power dropping off and then coming back above 5000rpm which sounds similar to the issue mentioned previously. I have a 3" piece of stainless in the large ID section of the standard intake pipe so maybe I'm having issues with the smaller end near the bend closing? I'm running 18-20psi with a GT2530 but only getting 200rwkw so somethings holding it back.. figure isn't on the intake side or the exhaust side.

Anyone else used one of these intake pipes with the metal rings? If so I'd love to hear about any opinions of what they have experienced.

[Rolls]

The metal clip goes in between the ribs so if the pipe was to suck shut it would pull the ribs together and have to squash the metal ring, obviously there isn't enough suction to do that so it should work fine.