20v Blacktop oil temperature high with cooler
Posted: Wed Sep 06, 2023 1:21 pm
I have a slightly odd setup for my oil routing, but it seems fairly common for AE86s with 20v engine swaps.
The oil filter is relocated to the strut tower, above the exhaust manifold, and then routed to an oil cooler. The whole kit is a Greddy one, thermostatic with AN10 lines.
The oil temperature after a very short few pulls will rise up to 110 deg C. I found a YouTube video of someone in Japan with the same setup who said their engine reaches that too. Ideally it'd be 90 - 100 deg is my understanding. Sitting at 70 mph on the motorway will cause the temps to start rising beyond 100 deg after a short period of time, so I end up needing to stick to 60 and even then it can creep up (4.77 diff so sitting between 4-5k rpms, was not an issue with the 4.3 it had before)
I have a 10 row Greddy oil cooler, I've checked all the lines and the cooler - all hot to the touch after a drive. The oil temp sensor is inside the plate to reroute the oil from the stock filter position.
I've recently tried heat wrapping the manifold, and buying Funk motorsport 250deg heat sleeves for the lines that go near the manifold coming to/from the engine. Is it really possible for the oil filter position to cause it to heat up so much? Or is my oil cooler just not big enough for a 20v? (Seems strange considering they had none from the factory).
Here's some pictures of my setup, ideally I'd move the filter elsewhere but when I try to think of ideas I realise why previous owners in Japan put it there. I could get a sandwich plate and keep the oil filter in the stock position below the manifold - not sure if that would help at all.
https://imgur.com/a/W74qzW0
Any insight such as how other people's 20v swapped 86s or opinions on the setup's affect on oil temperature would be helpful, thanks.
The oil filter is relocated to the strut tower, above the exhaust manifold, and then routed to an oil cooler. The whole kit is a Greddy one, thermostatic with AN10 lines.
The oil temperature after a very short few pulls will rise up to 110 deg C. I found a YouTube video of someone in Japan with the same setup who said their engine reaches that too. Ideally it'd be 90 - 100 deg is my understanding. Sitting at 70 mph on the motorway will cause the temps to start rising beyond 100 deg after a short period of time, so I end up needing to stick to 60 and even then it can creep up (4.77 diff so sitting between 4-5k rpms, was not an issue with the 4.3 it had before)
I have a 10 row Greddy oil cooler, I've checked all the lines and the cooler - all hot to the touch after a drive. The oil temp sensor is inside the plate to reroute the oil from the stock filter position.
I've recently tried heat wrapping the manifold, and buying Funk motorsport 250deg heat sleeves for the lines that go near the manifold coming to/from the engine. Is it really possible for the oil filter position to cause it to heat up so much? Or is my oil cooler just not big enough for a 20v? (Seems strange considering they had none from the factory).
Here's some pictures of my setup, ideally I'd move the filter elsewhere but when I try to think of ideas I realise why previous owners in Japan put it there. I could get a sandwich plate and keep the oil filter in the stock position below the manifold - not sure if that would help at all.
https://imgur.com/a/W74qzW0
Any insight such as how other people's 20v swapped 86s or opinions on the setup's affect on oil temperature would be helpful, thanks.