Oil cooler advise

[g3driver]

What oil cooler are track guys recommending? I want to install it on the right side air engine air duct. I was looking at Setrab 13 Row Oil Cooler - Series 6
Dimensions: 13" Width x 2" Depth x 4" Height
Also what size AN fittings and how long of a hose will I need.

Thanx!

 

[1K2GO]

This is the Driving Ambition kit using an Earls cooler and an Accusump. Been on the car now for over a year with no issues what so ever.

 

[RYU]

I'm in the process of doing this now.

The key is air flow. The wheel well naturally generates high pressure around the tire. I suspect this creates a bubble around the inner fender so air flow out is difficult but totally key. But airflow out to where?

If you vent or remove the fender liner I think this phenomenon will get worse.

I'm going to force it out into the engine bay I reckon. I need to buy some of these...

5" Spal puller fans

Where are all the smart NSX owners of yesteryears. They'd be able to answer this for us.

- - - Updated - - -

This is the Driving Ambition kit using an Earls cooler and an Accusump. Been on the car now for over a year with no issues what so ever.

btw.. do you have any oil pressure issues?

 

[illwillem]

I have the SOS kit mounted under the far right passenger rear. it mounts flush with the bottom now, but since got the diffuser and center exit exhaust ive been thinking about mounting it 90 deg at the same location to take advantage of the flow through

 

[1K2GO]

btw.. do you have any oil pressure issues?

none that I am aware of.

 

[Hrant]

RYU - not sure you can mount that fan once you do all the plumbing.

You ask an interesting question as to where the air goes after the oil cooler. In my current "temporary" scenario, I have the lower fender cover piece removed because I check if the Accusump is working as it is supposed to - (we had to rebuild it due to oil leak from the O ring - it's a maintenance issue; you can buy upgraded O rings now). So I guess the air it flows out through that opening otherwise it would be all added downforce no? :biggrin:

 

[RYU]

RYU - not sure you can mount that fan once you do all the plumbing.

I agree if I was routing the hoses thru the old engine bay cooling fan opening. I'll be running it along the control arm. YIKES! With our backwards alternator it will be tight but initial measurements tell me it might work. The question is.. do I buy a puller or pusher fan.

You ask an interesting question as to where the air goes after the oil cooler. In my current "temporary" scenario, I have the lower fender cover piece removed because I check if the Accusump is working as it is supposed to - (we had to rebuild it due to oil leak from the O ring - it's a maintenance issue; you can buy upgraded O rings now). So I guess the air it flows out through that opening otherwise it would be all added downforce no? :biggrin:

What opening? The engine bay fan opening?

 

[Hrant]

Through the lower fender liner cover piece which is removed .......... or if that is closed, then I guess through the engine bay fan; both are convoluted routes.

 

[Ponyboy]

What oil cooler are track guys recommending? I want to install it on the right side air engine air duct. I was looking at Setrab 13 Row Oil Cooler - Series 6
Dimensions: 13" Width x 2" Depth x 4" Height
Also what size AN fittings and how long of a hose will I need.

Thanx!

I use the SoS version (photo is my car) and have had no issue with oil pressure at all. Keeps oil temps stable. The fan moves A LOT of air. So much so that I'm ducting it rearward now.

 

[docjohn]

.................and I have never done this.....so who knows:redface:

 

[1K2GO]

I have also cut a hole at the bottom of my pas. side rear fender liner.

 

[g3driver]

That's the set up I was looking to do. The problem with the SOS setup is that it's on the right side of the car. I would like the weight to be on the left side for distribution. I am not sure how much ram air you get but it must be sufficient for cooling.

 

[Ponyboy]

IMHO, the effectiveness of any prospective oil cooler supersedes an issue with placement for optimal weight distribution. As an alternative could you not order it with longer oil lines?

As another alternative, you could always get the Ron Davis radiator that has a built-in oil cooler, http://www.rondavisradiators.com.

 

[g3driver]

Ponyboy, couldn't agree more. I can't believe that the a fan in your rear bumper / wheel well is more effective than ram air from the side vent.

 

[RYU]

Ponyboy, couldn't agree more. I can't believe that the a fan in your rear bumper / wheel well is more effective than ram air from the side vent.

As mentioned earlier though... "Ram Air" is only as effective as the low pressure behind it. In other words if the air has no place to escape as freely as possible the air flow thru won't be there. Ducting is important too.

There are a few guys here who has abandoned the side mount oil cooler idea but i'm going to guess it's because they didn't address the air pressure issue. On top of all this though.. a 13 row heat exchanger is not enough capacity for our engines anyway but it does help!

Of course, best case you may want to go with a Laminova paired with an Accusump or like Pony mentioned, both RD and PWR make the internal Oil to Water oil coolers. I just could never get over the idea that oil may leak into the coolant though. Call me Mr. Paranoid I guess...

 

[d_prada1]

Does anyone have one mounted in the diffuser area of the rear bumper? I'm not sure if this is beneficial or not.

Also is a pump required? Or is the pressure from a sandwhich plate enough to route the oil back into the motor.

 

[g3driver]

Ryu
Doesn't the air escape thru the engine bay and out the rear part of the bumper? Where would the air escape normally?

 

[Hrant]

Ryu
Doesn't the air escape thru the engine bay and out the rear part of the bumper? Where would the air escape normally?

As noted in my post, yes the engine bay where the fan used to be and with all the hoses coming out of there too. And if you take out the bottom liner just above the valence, then it will get out of there too .... but some of us have our Accusump mounted just above there - as I noted the routes are convoluted.