Jump to content
SAU Community

Recommended Posts

Hello guys,

I have been reading through many threads on little ways to get increased performance from a stock cooler a skyline.

There are many theories including removing panals etc. I thought we should put all the ideas on a single thread.

If you have any great ideas for stock cooler performance lets hear them!

Link to comment
https://www.sau.com.au/forums/topic/33542-more-flow-from-the-stock-cooler/
Share on other sites

For Performance?

Throw it out.

For a small upgrade, water spray is the only really worthwhile thing

cost vs effort vs result that i could think of.

Moving it to the front & re-piping it is useless unless you can do it in your spare time.

Paying for it to be done is a waste.

Even though your paying for it with your own time though really when you think about it.

well i was told to take the plastic cover from the passengers wheel arch off so help the flow. So i did. Dunno if it makes a difference. I guess u could make up a plastic scoop of some sort to grab the air and direct it through the cooler. S15's i know of have this system, maybe something to think about. But yeah i dont think there is much u could do. Maybe the most effective thing to do would be unbolt it and clean it out with degreaser or something and let it dry in the sun. Get the oil film outta it

I always thought if u attached some good sized heatsinks to the outside of the intercooler that may help dissipate the heat that it generates a bit? Very ghetto mod though, but wonder if it would work? Works on a CPU :worship:

The only way it can perform better is by improving the flow to the core and adding a water spray.

Even than it is a flow restriction once the boost in increased to around 12psi so not really worth the time to play with if you are running muchover stock boost.

Why not plumb oil through it and use it as an oil cooler, then mount a nice big front mount and plumb it up to the turbo and inlet manifold.

Alternatively fill the std intercooler with cement and stich a piece of chain into in before it sets (should make a great boat anchor)

- remove and clean out thoroughly with some sort of degreaser

- Cut a hole in the perforated plastic panel behind it (removing it entirely makes the front bar a little less stable)

- make up a plastic surround to channel (force) all of the air through the core.

- definitely don't mount it at the front, waste of time and you'd look like an idiot :worship:, also it will actually get better airflow in the stock pposition where air can flow "through it" and out the back

- as mentioned, a good upgrade (& cheap) is an r34 gtt intercooler.

the panel at the back and the ducting is a good idea. The cooler is pretty crappy in design, it's size isn't too bad tho'. The R34 intercooler is slightly larger but suffers from the same crappy end tank design and core, should work a little better all the same.

instead of water spray, why not mount a small electric fan behind it to suck air through (ie a fan from a motorbike)... cheap although probably most effective at helping the intercooler cool off ffrom heat soak, rather than reducing the intake temp

- remove and clean out thoroughly with some sort of degreaser

- Cut a hole in the perforated plastic panel behind it (removing it entirely makes the front bar a little less stable)

- make up a plastic surround to channel (force) all of the air through the core.

- definitely don't mount it at the front, waste of time and you'd look like an idiot :(, also it will actually get better airflow in the stock pposition where air can flow "through it" and out the back

- as mentioned, a good upgrade (& cheap) is an r34 gtt intercooler.

i agree wholeheartedly with the above however, the best material for making a duct to surround the IC is 1mm aluminium sheeting. it is quite easy to work with & cheap when you ask for offcuts.

instead of water spray, why not mount a small electric fan behind it to suck air through (ie a fan from a motorbike)... cheap although probably most effective at helping the intercooler cool off ffrom heat soak, rather than reducing the intake temp

Speaking as someone with no idea; this one sounds good. Anyone else think so?

Speaking as someone with no idea; this one sounds good.  Anyone else think so?

No :D

The fan would push less air through the core than the airflow at 60kph

Great when sitting in traffic but then the fan would be a restriction once you start moving again :Oops:

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Similar Content

  • Latest Posts

    • Will have a look at that. I cant see any leaks 
    • Put another overflow bottle (ie, a 1.25 coke bottle or similar) under the overflow hose and see if it is being pushed out there or if it is disappearing into the engine.
    • Staring on a stand is no issue. You just have to wire everything up, give it fuel and cross your fingers that the stand is robust enough. Arranging the inlet plumbing is often the hardest part, without any surrounding structure to hand some of it from. No need for coolant if you only want to run it for <1 minute. As to the gearbox - I think the little Aisin box is a bit stronger than the other small Nissan boxes that went behind SRs, but I wouldn't be too keen to test its limits with the torque of a boosted 25. I don't know if you can retain the box and the tailshaft. The box won't connect to the RB without an adapter of some sort, which is either a plate that will push the engine forward (which is not good for fitting it into the bay's available space) or push the box back, which messes with the box position and tailshaft length - OR - cut and shut work on the bellhousing, which is a long way from "least modification". I'd be buying a new 370Z 6 speed or similar, doing what has to be done to that to make it fit RB (ie, cut and shut bellhousing) and the requisite tailshaft custom/mods.
    • Hi Everyone I am from West Pennant Hills in NSW. Been too busy until recently to attend to my RB25DET Series 2 engine until recently. I am planning to stick it into the S15 shell at this stage, unless a nice SR20DET turns up... For now, i am going to try and get the RB25 running and working well then decide what gearbox to use. My preference is to retain the SR20DET  6 speed gearbox and tail shaft to retain as much and least modifications as i can avoid. I am an old guy and won't be doing any heavy drifting so i don't need a bullet proof gearbox Does anyone have experience with starting the RB on a stand? I got everything setup as much as I can with the info i can find... endless searching and videos on Youtube I would be great to get some pointers Cheers Songo
    • Hey all, Recently have had my s1 r33 gtr serviced and noticed my coolant reservoir was topped up to the max line. Took the car out for 1 yesterday and noticed today the reservoir is completely empty.  Any ideas? Radiator is full
×
×
  • Create New...