C20LET has one but slapping an intercooler in the way shouldn't have much effect on it TBH.
The ideal operating temp is 90oC but the oil cooler can take this RIGHT down on cold days so blocking it a bit can help slightly IMHO.
The oil is not there to cool the turbo (not primarily), its there to lubricate and it lubricates better when its warm/hot rather than cold. There is a water jacket surrounding the turbo for cooling the turbo.
The sandwich plate under the oil filter has a thermostat between it and the oil cooler pipes. So the cooler only comes into play at the predetermined heat. Well thats how it is on my gte, i dont know about the tubo.
make sure you butt the coolers right up against each other - ie no gap, or you'll greatly reduce the oil coolers efficiency, as well as slightly lower the intercoolers effect - it's all to do with airflow and pressures and whatnot - a gap in between them creates a high pressure area and destroys the airflow.
Originally posted by Gary make sure you butt the coolers right up against each other - ie no gap, or you'll greatly reduce the oil coolers efficiency, as well as slightly lower the intercoolers effect - it's all to do with airflow and pressures and whatnot - a gap in between them creates a high pressure area and destroys the airflow.
A gap creates a high pressure area? Since when?
A cardboard behind the cooler would create a high pressure area (and cut flow dramatically)
But why a gap?
You don't want the coolers rubbing each other, do you?
Originally posted by Gary it's due to the turbulence of the air exiting the first cooler and hitting the second - I realise it's not the same as hitting a solid obstruction, but the theory holds.
The little metal bits in between the passages of the core, are called 'turbulators'
That's because we *want* turbulent airflow there.
Laminar airflow will reduce a heat exhanger's efficiency.
The oilcooler wouldn't be very happy cooling itself with warm air, especially in the summer. But if it's impossible to channel some cold air to the oilcooler, then the intercooler should still be upfront.
I'm not talking about the air whilst it's in the cooler, just the simple fact that an air gap before it hits the second will allow the flow to slow and dissipate somewhat - by moving the second cooler right up to the first that airflow is encouraged to pass through and maintain a better velocity - it's all about keeping it in the channel as opposed letting it get away.
Also if they are butted together, when you're stopped at the lights you have a 90-110 degree oil to intercooler heat exchanger.
Lovely for when you boost it off the lights.
I remember reading that CCC thing, when the guy didn't make the power he wanted with the intercooler he was told some reason by the people he bought it off why, just the reason didn't seem to work out..... My memory's gone
John, last try.. an air gap will allow the exiting warm and cool air to mix, and cause turbulence, hence flow to the second cooler with be greatly compromised, hence a good flow of slighter warner air is better than very little flow at all
please direct any further correspondence on this matter to my hand
Looked at CCC again last night.
The cooler looks about 1/2 - 1" away from the rad.
Oh and he was told that they correct for temp on the RR so that reducing your induction temp won't be shown in any gains on the RR. Errr.... don't remember them correcting for induction temps, just ambient temps... ahh well.