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Posted by: retrotech Oct 8 2004, 09:21 PM

I want to install front oil cooler, for a high compression 2.8.
What the best on the market?

Thanks,

Retro

Posted by: J P Stein Oct 8 2004, 11:30 PM

I like Fluidyne. Dunno if they're the "best", but they're a good lookin' unit and customer service is top notch. You can deal with them direct.....Goggle ought to find them.

Posted by: Brad Roberts Oct 8 2004, 11:32 PM

Fluidyne all the way. The thermal characteristics of the Fluidyne are leaps and bounds above the sandwhich style Mocal/Earls/Setrab. Bottom line: they are more efficient.



B

Posted by: J P Stein Oct 8 2004, 11:40 PM

Yeah.....what he said...all them thermalthingys.

Posted by: Brad Roberts Oct 8 2004, 11:44 PM

The radiator style just works. All the factory Porsches use a radiator style oil cooler (993's came stock with one mounted in the right front fender) Even our stock 4cyl oil coolers are radiator style.



B

Posted by: SirAndy Oct 8 2004, 11:46 PM

how much for one?

i have the "while i'm in there" itch ...
Andy

Posted by: trekkor Oct 8 2004, 11:47 PM

What could I expect to pay for a nice set-up?

KT

Posted by: retrotech Oct 8 2004, 11:47 PM

Thanks Brad & JP.
Which model do you suggest?
Do you still agree to vent under the car, which seems wrong to me.
I would think out the hood would be best?

Posted by: SirAndy Oct 8 2004, 11:49 PM

oh oh, you shouldn't have said that ....

Posted by: retrotech Oct 8 2004, 11:53 PM

oh, oh, why?
Now what have I started?

Retro

Posted by: trekkor Oct 8 2004, 11:55 PM

You'll see...

Posted by: Brad Roberts Oct 8 2004, 11:57 PM

Out the hood works best. It tends to dump heat into the passenger compartment when the roof is off the car. Track car.. exit out the hood. Street car.. exit beneath the car.

B

Posted by: SirAndy Oct 8 2004, 11:57 PM

brad hates the "through the hood" idea. i have argued with him on several occasions and he has nothing good to say about it.

if i recall right, his main argument was "with the roof off, you'll be getting all this extra hot air inside" ...

i guess guys from texas don't need hot air?
Andy

Posted by: Brad Roberts Oct 8 2004, 11:59 PM

Choose from these. I have installed/ran just about everything on this page:

http://www.fluidyne.com/pl_theoc.html



B

Posted by: SirAndy Oct 8 2004, 11:59 PM

so, b. meister, seriously, what's it gonna cost me?

- good front cooler, braided lines, thermostat and all?

i have the sandwich adapter for the oil-filter pickup ...
how much scrilla?
Andy

Posted by: Brad Roberts Oct 9 2004, 12:00 AM

I just dont see a need to vent any of "our" cars through the hood. The inlet requirements and outlet requirements are VERY small. You dont need a big HONKIN hole in the hood.



B

Posted by: Brad Roberts Oct 9 2004, 12:02 AM

Figure 1700$ to be safe. That should be everything including a GT shroud/fittings/-12 braided line.



B

Posted by: J P Stein Oct 9 2004, 12:04 AM

I use the DB-30416-12 (the -12 is AN IIRC)....bout 300 bucks, but that was a couple-3 years ago.

Venting? None of the above...kinda.....hay, it works.


Attached image(s)

Posted by: SirAndy Oct 9 2004, 12:06 AM

hmmm, that's not too bad ...

if i use the pass. long for the lines, i'll still have heat on the drivers side.
plus, i'm going to cut up a perfectly fine hood (of course!), no need for a GT shroud.

alright, can you order the parts on monday?
cooler, good thermostat, ~12 braided lines + fittings.
anything else?

Andy

Posted by: retrotech Oct 9 2004, 12:08 AM

Here is a picture of a 914 I had with hood vent. I never noticed heat. I assumed through the hood would detach air flow, retarding lift, creating down force?


Retro


Attached image(s)

Posted by: Brad Roberts Oct 9 2004, 12:12 AM

The nose naturally creates downforce with any kind of splitter on a lower airdam.

I can order the parts Andy.

I suggest the way JP did it. Two vent holes above the steering rack. The air escapes out the fenderwells..



B

Posted by: J P Stein Oct 9 2004, 12:13 AM

Off the top of my haid.
Cooler 300-Fluidyne
thermo 210-Troutman....I paid less but you won't
lines & fittings 285ish.......there was some dickin' around involved here gettin' the right fittings. I have 8 feet of -12 & 2-3 straight fittings left over if anyone wants for cheep.

Posted by: retrotech Oct 9 2004, 12:16 AM

I thought I remembered reading some where that the exit was to 2 - 3x larger than entry?
Not so?

Posted by: J P Stein Oct 9 2004, 12:18 AM

It's amazing how much bullsh....ah....info we can generate in a short period of time, eh?

Brad: 3 holes, damnit....wouldn't wanna short the venting

Summit Racin' for lines & fittings.

Posted by: Brad Roberts Oct 9 2004, 12:21 AM

Somewhere in this world there is a formula for calculating the exit needed for a given entrance. Obviously the air expands as it exits the cooler...so yes the exit should be larger, but how much is the question. 2-3 times is a little much.


B

Posted by: J P Stein Oct 9 2004, 12:25 AM

Yeah, I heared that also.....but....
A nice high pressure intake + low pressure outlet(WAG). I was prepared to cut more holes as necessary...it wern't. 100C is the peak oil temp I have seen. 90C at a track day.

You've seen me flog the car......20 AX passes in about 2 hours that day....and it was 80ish.

Posted by: SirAndy Oct 9 2004, 12:29 AM

here you go, from my favorite science website ...

http://scienceworld.wolfram.com/physics/ThermalExpansionCoefficient.html

Andy

Posted by: Brad Roberts Oct 9 2004, 12:30 AM

I agree. Stick with small openings and small exits. Right this minute I have HALF our Fluidyne cooler blocked off to get the car to up to temp during a 20 minute race (8500RPM injected 3.2) NO engine mounted oil cooler.


B

Posted by: SirAndy Oct 9 2004, 12:33 AM

couldn't you run a thermostat near the engine?

Posted by: J P Stein Oct 9 2004, 12:46 AM

Anyone familiar with the P-51.....besides Andy's granpa

The vent for the radiator was about the same size as the inlet.
I read that it supplied jet thrust to the airframe.....a design featurette. Them's were some fart smellers.....smart fellers....whatever. If true, it has no application in this discussion......humph.