[SpeZ]

Since the oil gets way too hot when tracking the car I looked into oil coolers and searched for recommendations.

I ended up by building my own. The plug and play solution from mishimoto would have been enough, but it would sit in front of the intercooler.
As well I have removed the aluminium front bumper for better cooling and it actually looks awesome.
Used some glass fibre soaked with epoxy to hide the cutted bumper, when it dried, spray painted it black.


Used parts:
All fittings and hoses are PTFE version, for high temp and oil resistance.

1x Mishimoto 25 row oil cooler
1x Mishimoto Sandwichplate (M22 version)
1x Mishimoto M22 bolt to mount it
3 Metres of An10 hose
2x 45° An10 fitting
2x M20x1,5 to An10 (to install on the sandwichplate)
1x 90° An10 fitting
1x 93°C thermostat for the sandwichplate
A small bottle of fluid sealant.
Heat wrap, aluminium wrapped aramid to isolate the oil cooler next to the catalytic converter and to wrap around some intercooler hoses.

For the intercooler the following parts:
1x Big setrab cooler
2 Metres of 25 OD and 18 ID cooling hose
2x Hose connector 19mm
2x 19 mm to M22x1,5 fitting
2x 90° fitting with 19 mm OD to connect hoses

After the first test drive today, the engine oil did not exceed 93°C under similar conditions where it usually reaches 110+°C. Was happy to see nothing leaked.

With this setup, the downside seems to be oil drainback into the oilpan.
Its helpful when changing oil viscosity before going to track tho.
I am still figuring out, if the entire oil cooler empties itself, I might increase the cranking time during the engine start for safety reasons.

[SpeZ]

Small update after plenty of time in use.
Oil drain back into the pan does not happen.
When doing oil changes and you remove the oil filter, the "Siphon effect" starts and pretty much all oil in the cooler slowly drains.

[Patriot Motorsports USA]

Where in Europe are you...? I spent a lot of time there years ago working with the guys at TopGearUK after capturing photos of Gunter Schaldach's Camaro leaving the track over my head at Road America in 2011.

I applaud your efforts to keep your Camaro cool!! You have mirrored what I started with two years ago when I began chasing the fueling issues and misfires on cylinders 3 & 5... and to keep from re-writing a book of a post I made yesterday, I will just link you to the post of someone else who has bought products like you have and is not seeing the results they anticipated, as I also have had such an experience. This is where testing on the track, at the brutal limits reveals the difference between great parts for the masses who just street drive with occasional trackday jaunts.

As you have discovered, the oil cooler does not drain back into the pan as the flow path is after the oil filter which has an anti-drainback valve. Also the secondary bypass for the OEM oil cooler outlets, do not drainback into the oil filter passage... so cold starts have full oil flow to the upper areas of the engine.

Read this post thread and LMK if you have any questions.

https://www.camaro6.com/forums/showp...4&postcount=41

Here is the link to a comprehensive

[SpeZ]

I am located in germany.
Around 7 track hours in total with it.
And lots of high speed driving on the autobahn.

So far, I am very happy with the results. Next weak spot would be transmission oil temp with the A10.
After around 15 minutes it reaches 230°F.
But I usually drive just 15 minute stints anyway, so I won't touch the cooling.
I do frequent fluid changes as well, whether its the engine oil, diff oil or trans fluid.

As far as my knowledge goes. LT1 and LT4 are similiar in terms of oil flow. I mean they use the exact same oil pump from factory.
Yes, the oil flows through various valves and bypasses, but they don't actively adjust pressure. The bypass also only kicks in, in worst case scenarios like a fully clogged filter. Close before real oil starvation happens.
Not sure tho if resistance in the flow gets worse at hot weather + high oil temp. I mean it kinda compensates itself when the oil gets thinner when hot.
If it would bypass the oil filter by too much resistance, my oil cooler wouldn't be in use and it would definitely caught my attention.

Yes, the sandwich oil cooling system decreases a little oil pressure, but it is by far not enough to disrupt the lubrication of the engine.
An10 hoses are perfect fit in my mind. Common size for ages for various engine builds.
The restriction does not happen in an An10 hose. The choice of fittings are here more important. In my case, I used high flow fittings with nearly the same inner diameter than a real AN10 hose.
The main restriction will be caused and happen in the added heat exchanger with dozens of rows and small channels.