Raistlin

I installed a ron davis radiator with integral oil cooler and am now planning the oil cooler portion of the install. I know I need an adapter, lines and fittings, but which adapter is appropriate? How large of lines should I run? What size fitting? Any help for choosing the proper parts is appreciated.

I have a 1990 6-speed coupe with long tube headers.

jdonnelly

I used a Canton sandwich with remote oil filter and -10 lines and fittings on my C5. I got a 3-5 pound drop in pressure and added 3.5 qt of oil. Ust lots of heat and abrasion shielding and safety wire

Good luck

Jeff

WNDOPDLR

I used the Canton adaptor as well. I think my line was #10. Be careful with the SS braided line. It will saw it's way through week old pizza or any thing else it comes in contact with. I used some clear vinyl tubing from Lowe's as a sleeve and have had no trouble. OP runs from low 60's to high 80's

96GS#007

Call Canton Racing and they'll be able to tell you. The L98 needs a different adapter than LT1/4 and LS1/6 cars because of the different oil filter size.

Raistlin

Thanks for the tips!

I've been browsing through Summit on-line and noticed a couple of the oil coolers were running 1/2" line, which appears to be equivilent to -8. If anyone has suggestions on which angle fittings I might need for clearence coming out of the adapter, that would be greatly appreciated. I'll keep searching till I figure it all out, then post back on what I've found.

All suggestions appreciated!!

--steve

STEVEN13

On my 1992 I have #10 lines with the DRM rad/cooler combo. Off the adapter I have straight fittings.

I purchased the adapter at a local speed shop-its not as nice as the Canton and had a cheesy bypass valve which I removed and plugged. I also added a manual bypass valve so I can bypass the cooler.

Steven

Raistlin

Thanks Jim, I will give them a call on Monday.

Raistlin

Steven, do you have headers on your car? I am running hedman 1 5/8" long tube headers.

During my survey of obstructions for fitting, it appeared straight fittings would work. Thanks for your reply!

-steve

Raistlin

Another question:

My 1990 has a stock oil cooler. It appeared to have one line going directly above the filter and a second line going into the side of the engine. Has anyone seen this before? I guess i can plug the fitting at the engine, if there is indeed one there.

thanks everyone!

STEVEN13

Stock exhaust. Also I would like to thank 96GS#007 as he posted a photo of his set-up. The oil filter adapter that came with my DRM oil cooler would not clear the stock cats.

Steven

96GS#007

I took a look on the Canton website and it *appears* you'll end up with one of these....

#22-540 SBC Remote Oil Cooler Sandwich Adapter
Oil goes to cooler before filtration.

#22-541 SBC Remote Oil Cooler Sandwich Adapter.
Oil goes to cooler after filtration.

Best bet will still be to call Canton to be sure.

Regarding lines, based on a pic of the adapter I *think* you'll end up with, you should be able to get by with straight fittings. Here's the pic I'm referring to....



I use -10AN lines with my setup. I know some folks use -8AN lines, but IMO they're a little on the small side. Kind of depends on just how hard you want to push the car. FWIW, the above adapter requires a fitting that's 1/2" NPT on one end (goes into the adapter) and -10AN on the other end for the Aeroquip or similar line fitting to attach to.

BrianCunningham

On an L98, I'm assuming your eliminating the stock, preheater.

On LT1/4's we need a special adapter since the cats are so close.

The other alternative in either case is a remote filter, that gets it away from all that engine heat.

larryfs

how about the adaptor found on the LT1 Impala motor ?

STEVEN13

This is what comes with the DRM rad/cooler. I was not able to get it pass the cat. (MY car:1992)

Steven

Raistlin

I am eliminated the stock factory cooler. Are there any tricks to this? Can I reuse some of the existing hardware?

thanks

BrianCunningham

The stock L98 is a water to air cooler/preheater.

I wouldn't reuse any of it for cooler inside the radiator.