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Silicon Intake Pipe?

Torques

By Torques,
in Engines & Forced Induction

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Torques Mentor

Torques

Posted
Posted

Hello there,

I am looking for a replacement for the OEM rubber intake pipe since I suspect it sucks itself shut.

Are these silicone replacements any good or should I rather get a metal pipe (ApexI?)

Just an example:

http://www.ebay.co.uk/itm/NISSAN-SKYLINE-R33-RB25-TURBO-AIR-INTAKE-PIPE-SILICONE-/200454322924?pt=UK_CarsParts_Vehicles_CarParts_SM&hash=item2eac023aec

http://www.ebay.co.uk/itm/SILICON-INTAKE-PIPE-4-SKYLINE-R33-GTST-R34-GTT-STAGEA-/160899111156?pt=AU_Car_Parts_Accessories&hash=item25765598f4

Thanks ..

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Torques Mentor

Torques

Posted
  • Author
Posted

I did this as well, but only in the upper third of the hose section.

I used a 100mm aluminium pipe but I suspect that the lower part

of the hose collapses.

I've used those silicon ones, they've collapsed on me running 1.3bar... proceeded with hacking up the stock one and putting in an alloy section in it... all good :)

JustinP Mentor

JustinP

Posted
Posted

Scotty - do you make these to order? :P

If so could you PM me with a price? :no:

I would need a 4" one for a low mounted GTX3071R, with the BOV return and catch can return inlets (I can supply these from the old pipe I have), going into a custom air box which I am yet to build. I am not running a MAF sensor so the pipe would go straight into the box.

scotty nm35 Grand Master

scotty nm35

Posted
Posted

So you want a 4 inch custom intake, made from 4000ks away with second hand bits? Sorry Justin, I can't work miracles. :P

BTW, I am making 350kw on a 3 inch pipe, why do you feel 4 inch is required? Or a custom airbox for that matter? The 80mm one above will do you fine. If you're running map sensored can't you just vent the bov?

JustinP Mentor

JustinP

Posted
Posted

So you want a 4 inch custom intake, made from 4000ks away with second hand bits? Sorry Justin, I can't work miracles. :P

BTW, I am making 350kw on a 3 inch pipe, why do you feel 4 inch is required? Or a custom airbox for that matter? The 80mm one above will do you fine. If you're running map sensored can't you just vent the bov?

Fair enough :P

I dont think the 4" pipe is a requirement, it just might be easier considering my turbo has a 4" inlet, and my airbox will be custom built. And I'm building the airbox for the challenge, I want to have a play with fibreglass and see what I can do (which could be a spectacular failure).

As for venting the BOV, I would rather recirculate if possible.

mambastu Collaborator

mambastu

Posted
Posted

Hello there,

I am looking for a replacement for the OEM rubber intake pipe since I suspect it sucks itself shut.

Are these silicone replacements any good or should I rather get a metal pipe (ApexI?)

Just an example:

http://www.ebay.co.u...=item2eac023aec

http://www.ebay.co.u...=item25765598f4

Thanks ..

I haven't used one of the ebay pipes that you have listed but I have used SFS silicone intake pipes and they work fine. They have wire re-inforcement buit into the wall of the pipe so they don't suck shut.

With the poor exchange rate it might be worth you getting a custom pipe made up in the UK rather than importing an Apexi pipe in. A company near me does a lot of custom pipework but they might need to have the car to do it.

Cheers

Stu

Torques Mentor

Torques

Posted
  • Author
Posted (edited)

Thanks Stu / all,

I'm really torn which route to go from here.

I am using the standard air-box with one of those green foam HKS panel filers.

(am considering using an ApexI panel filter)

Long background story ->

My boost drops from 1.2BAR to .75 starting at 4500rpm.

I talked to the turbo company (Turbo Technics) and they said the turbo (a hybrid) holds 1+ bar at 7000 rpm on a GTST.

My intake system (after the turbo) is fine so I suspect it is the hose or the air-box setup.

That's why I wanted to change the suction hose or possibly the air box.

I heard that the air-box is good for 300kw, but I doubt that the intake snorkel can accommodate 80% more airflow(?)

Option A is:

Silicone/metal suction pipe + ApexI panel filter

Option B:

Apexi suction kit

I like the standard air-box and am not sure about the benefits of a cone filter

Here's the ApexI kit:

http://www.partpal.c...n-print/view/36

My car makes 340HP at .75Bar (that's at the engine) and if I could get the boost back

it would be some horses more ;)

I haven't used one of the ebay pipes that you have listed but I have used SFS silicone intake pipes and they work fine. They have wire re-inforcement buit into the wall of the pipe so they don't suck shut.

With the poor exchange rate it might be worth you getting a custom pipe made up in the UK rather than importing an Apexi pipe in. A company near me does a lot of custom pipework but they might need to have the car to do it.

Cheers

Stu

Edited by Torques
  • 3 weeks later...

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