What Not To Do When Installing A Cold Air Intake

[Silvarh]

So guys today my friend and I installed a D1 Spec oil catch can and a K&N cold air intake into my RB25DE. This took quite a little time as I was given some wrong piping and tried my best to fit everything together which I eventually did. So roughly 2-3 hours into the project we've installed everything and I'm hooking up the last pipe onto my catch can and to my dismay I find that the pipe that the hose is attaching to is too big! I tried to heat up the hose to stretch it and expand it but to no avail. So I ended up buying a hose to fit onto it which surprisingly fit as it was a Ford Falcon pipe of some sort. So with everything attached I go to start up my car and what do you know.. it chokes out. Amazing. I gave up and went inside and thinking about how I dismantled the OEM pipes I realized that /sigh... I put the air flow sensor on back to front =.="

So tomorrow I'm going to try and fix this problem and hopefully fix my car lol, I''ll share this picture of everything that I've done today. If anybody can find anything else that I may have done wrong please feel free to post, all the more help is welcome lol!

*Oh and the reason the black pipe coming out of the catch can is massive is because I just bought it and didn't know if it would fit properly or not so I was just trying it on.*

[75coupe]

it may just be me being picking but having your 'cold air intake' right over the exhaust manifold cant be a good thing.

do you really need an oil catch can?

[Silvarh]

My mechanic told me that Iv'e got an oil leak problem with my engine and the cost effective preventative measure against any possible damage was to install the catch can. I'm not 100% on what the exact problem is aside from being told that I'll have to rebuild most of the engine /sigh.

[75coupe]

how many Ks on the engine?

[Silvarh]

Almost 250,000 ^.^

[boostin31]

My mechanic told me that Iv'e got an oil leak problem with my engine and the cost effective preventative measure against any possible damage was to install the catch can. I'm not 100% on what the exact problem is aside from being told that I'll have to rebuild most of the engine /sigh.

Usually an oil leak problem is from a seal or gasket leaking, catch can wont do SFA to stop that...

[Silvarh]

Starting to think I should probably get a new mechanic lol

[75coupe]

just get another 25de cheap as.... shouldnt need a catch can on a unmodified engine especially a de...

[NYTSKY]

Your intake pipe is too short, you need to lengthen it so it sits behind the headlight. Otherwise as stated you will just be sucking hot air where the pod is now.

I dont think that clear pipe will last too long either.

[Silvarh]

I've got a snorkel that I can attach to the filter, would that help at all or would i need to get a longer intake pipe? Also getting a new engine would be tough as I'm currently a full time student zzz

[WYTSKY]

I would just get a longer pipe, one that comes down to behind the passenger headlight (where the airbox used to be) put the pod on the end of that, then gets some good cool air flowing to it, otherwise it is worse then stock.

student + skyline... been there done that.... it can be hard...

[mad082]

I've got a snorkel that I can attach to the filter, would that help at all or would i need to get a longer intake pipe? Also getting a new engine would be tough as I'm currently a full time student zzz

a new motor by itself with none of the loom, etc (which you wouldn't need as you can use your current stuff) wouldn't cost that much. a few hundred dollars. then get a few mates round and spend a few hours putting it in

[bozodos]

well i guess you could say why bother with a skyline of any type whilst a full time student etc, but yeah i'd be leaning towards the new motor option, the n/a rb25 is worth about as much as an rb30 lol

[Kris..]

put the stock intake pipe and airbox back on, probably making it slower with the pod and shit pipe on it

[Silvarh]

I think I'm going to take up on what everyone is saying and save up to buy a new engine. Seems the logical thing to do as my engine has seen its best part of 18 years lol. 4 months till I'm off my P's so time to save for an RB25DET! Btw thanks to everyone who gave me some pointers with this, really appreciate it ^.^

[blk94r33]

Is the catch can plumbed into your AAC valve?

[Miguelone]

Did someone say buy a new 25de

[Silvarh]

Oh and to post the proper problem why it wasn't working.. I accidentally hooked the catch can hose up to the idle control valve (not sure if that's the correct name). Hopefully that may help people in the future haha! Time to find a nipple and weld it onto the pipe I'm running off the throttle body. Btw as per suggested I've extended the intake pipe so that the filter sits behind the headlights.

[starwarz]

well i guess you could say why bother with a skyline of any type whilst a full time student etc, but yeah i'd be leaning towards the new motor option, the n/a rb25 is worth about as much as an rb30 lol

Me and my mate attend Uni full-time for the last 2 years both with R34 25GT's, both cars have been solid its when you start mucking around with them stuff goes wrong.

[starwarz]

Get on EBAY find a Motor they are cheap it has crossed my mind to just buy one as a spare motor.