Grizzly

Hi all.

I am intrested in seting up a efficant Oil cooler.

To begin it will be fitted to a 20b that is single turbo and has Plenty of power on tap.

I have a 20b stock Oil cooler fitted but i am fitting a bigger Ic and dont want it to block out the cool air.

So i am thinking of going the Twins route, basicly what i want to know is do i just fit the Biggest Oil coolers i can get in the space provided or can it be to big? ie. it cools the Oil down to much and the oil goes thicker and i loose power?

Does it work like this?

I have also thought of geting two that have a simalar surface area as the stock 20b set up and make some ducting so it gets plenty of cool air through it.

Then there is the question of a thermostat, would it be worth me ither rig them up to come on at a set temp or have one on all the time and the other comes on at a set temp?

Anyway your thoughts would be most apreciated.

Cheers.

Chris

Cheers!

why don't you try ducting some air instead of ditching the oil cooler in favor of two

Grizzly

Becouse it have a limited amount of Space in the stock location so if i move the Oil coolers it solves that problem.

I guess i just need to play with the Set up and keep an eye on the Oil temp.

chris

Wankel7

Some guy did a twin oil cooler setup with stock 85-91 coolers. I believe he was happy with the setup.

Do some searching.

James

Turbo 3

iTrader: (3)

That would be me. I am running two 86-91's in series (one vertical above the other) between the radiator and FMIC but since the motor isn't running yet I don't know if there will be any substantial cooling/overheating issues but I don't think there will be. If so, another electric fan will be added behind the IC to help blow through air and/or additional sheet metal can be added to direct more air through that particular space.

Grizzly

Thats another Option, but i'm going to make alloy Ducts to supply cold air to the Oil coolers so the rad is'nt being fed Warm air.

Basicly i want to spred things out a bit at the Ft of the car of there is more air flow.

Chris

RX-Heven

iTrader: (1)

I have a dual oil cooler setup with my 20b car that is several lifetimes away from being done, but the oil system is just about done. I'm using 2 setrab 10 x 11 x 2 coolers with -10 lines that are teed from the -12 line at the front sump cover. Oil coolers are located under the front headlights which are no longer pop-up style since I would not have been able to get as big of oil coolers as I wanted. There are large ducts in the front bumper right in front of the coolers so there is plenty of fresh air. This is with a dry sump system on a 2nd gen for your info.
I doubt you will cool the oil too much.

Grizzly

So what you're saying is Big is best!

This will be on a Triple P/P, i just dont want to cook it becouse of bad planing.

Chris

Carl Byck

I am using the Twin 87 oil coolers, with proper ducting, i run 150-165 on the HWY, and 195 on the road race track, one is stock location, and the other is at the top of the radiator. Works great, but proper airflow is a must. Car is a small single FC making 325ish rwhp.

maxcooper

You only need one thermostat. If the two coolers overcool the oil, the thermostat will begin to close again.

-Max

RageRace

Why not get an aftermarket front ie cwest or something that will draw more air in and mount 1big or 2 smaller coolers in the stock location.

Grizzly

I have a Re FC2000 ft cowl but i am running a huge Ic and Rad with a Triple so there is not alot of space, i'd rather fit too oil coolers in the R1 style position and make some cool air ducts.

Max, I had been thinking of fitting a thermostat, do they work ok? and are they pre set or can you get Ajustable ones?

Chris

RX-Heven

iTrader: (1)

Grizzly I think you and I are running the same setups as far as car/20b/front bumper/ic/rad. I think we are both aware of the greater cooling needs that the 20b will require than even a highly modded 13b, especially if you will be doing additional mods and/or road racing it. With that front end and the Setrab or other oil coolers (Setrab is the absolute BEST) of the size I already mentioned, they should cool the engine sufficiently without over cooling. It would also be possible to run a heat exchanger with this setup to equalize and maintain consistent water and oil temps if the difference is too great. I'm not going to run one of these to begin with but it is a solid backup plan. I have talked to Rob at Pineapple Racing among others extensively about this setup and they agree.

Those oil coolers fit under the h-lights with all fittings at only a slight sideways angle and remain perfectly vertical. The large round duct holes in the bumper are right in front of the coolers on both sides and the smaller rectangular openings are at the bottom of the cooler. Should be plenty of air.

Just for comparisons sake, I am running a Griffin radiator HP Max 27" x 19". Spearco ic core #2-182 (26" x 15.6" x 3.5") exact same as Evil Aviators' with 3" inlet/ outlets and also a RE fc2000 front end/ large streetport-drysumped 20b with a big single.

Locating the coolers there did present me with other issues though. I have no fenderwell liners as I am running the Tri-Point widebody kit. This requires me to fab up something to replace the stock liners (in front of the wheels) to protect the oil coolers. Haven't fabbed anything up yet besides fitting posterboard templates, but it shouldn't be to tough. Also I am going to have to modify how I plan on routing the ic piping. I actually think what I have in mind will actually work out better but we'll see.

Mariah Motorsports makes a dual oil cooler kit that mounts in the same locatgion fyi.
Have you decided on a turbo yet?

Grizzly

My prescent set up is a little tamer than yours (20b Extended port,T66, Uprated oil system but not Dry yet,K2rd Rad,3x22x12 IC,Re 2000 cowl).

The reason i am geting all my self set up for big hp is that i am in the Prosses of puting together a P/P Triple with somthing like a T80 Turbo, I have Bought Alfs old Ic set up (which should be good in the higher Hp range) and am moving every thing about to get the most cool air into the Engine bay.

I did think about removing the Ft panel and making up a custom one but the Cowl restricts the amount of flow anyway so it would be a wast of time, I have the Stock Fenders still so i have kept the Plastic liners in place but i'm thinking of making up some ducting that goes from the Ft throught the Oil coolers and dumped onto the Brakes? so i may end up cutting and changing a bit.

I am toying with Fitting a Dry sump,it just seems a good time becouse it has to have a sump made for it any way. Do you know if this alone will drop my Oil temps?

Rx-Heven, have you had yours running yet? i am intrested what you think of it? I supose you would'nt realy tell until you drove it anyway.

Chris

RX-Heven

iTrader: (1)

Yeah, that sounds more tame

Just to be clear, to run a dry sump, typically you eliminate the entire oil pan and run a flat plate or something similiar instead and pump the oil to a remote resorvoir. You also need a different type of front cover. Sometime soon, a friend of mine will be trying to use the stock front cover and an external pump on his 20b. Should work.
A dry sump system alone will reduce your temp for several reasons. It pumps the oil to a sump tank that is separate from the engine plus the oil capacity is generally twice the stock capacity. The capacity makes perhaps the biggest difference. Mine for example with a 6 quart sump tank, two coolers and all the line should hold 12 quarts or so.

I've driven it in my dreams
The plan is to have it running by sevenstock end of next summer. Though, thats what my plan was this time last year for this years sevenstock
I'll tell you what I think it will be like...Stupid

Grizzly

I have the same problem, i started building my new engine and have had nothing but problems with the Old one (Mainly due to a C**p E11!) so i seem to be going backwards at the Moment.

Chris

P.S. it sounds like you have a well thought out set up there, Will it be for Track or just Fun?

RX-Heven

iTrader: (1)

I've thought it out so much the car is basically finnished...in my head. The car is my version of a no holds barred street car, essentially a full out race car with an interior. I do plan on running it in NASA super unlimited and Nevada open road events.
Do you plan on running the T66 with your p-port engine?
Also, are you placing that ic directly behind the front bumper, like the GReddy ic setup?

Grizzly

The T66 is a bit small for a P/P so i will be Going for a T80.

I am hoping to run Alfs old Ic in the same place as he had it.

I am also hoping that it will be Big enough? I know Alf ran 600rwhp with it and HPI rate it for 1000bhp so i should be ok.

I would like to point out that this is my First P/P engine so i'm kind of Winging it, I will fix problems as they Occure but i'm going to try and Over kill every thing so there is'nt major problems.

Chris