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Working out the kinks in a LSX Supercharged C5 I just got (original owner had passed away shortly after having the car put together) and I see they ran the part that is circled in the picture is going to the side cooler on a Dewitts radiator and the return from the cooler to the overflow tank... Is that correct or where does it go? I don't get why they would run the crossover to the side cooler??
I actually wanted to use the side cooler for an engine oil cooler setup but I also got a B&M oil cooler I could use...
* Picture is just generic one I found but its the same kind of pipe *
On most LS motors that usually goes to the water port across the bottom of the TB, then to the coolant recovery tank. Looks like that one might go straight to the tank.
Not sure what you mean "side cooler", unless you're referring to either an integral oil or trans fluid cooler in a tank.
That connects by way of a rubber hose to a small port on the radiator and you may have to drill and tap one on the radiator yourself if you don't have the correct one.
That connects by way of a rubber hose to a small port on the radiator and you may have to drill and tap one on the radiator yourself if you don't have the correct one.
It is a Dewitts and has the oil cooler so they are using that for the crossover pipe and then the other side goes to the coolant tank. Idk if that is ok like that...
Let me explain, the port on the crossover pipe (circled in the pic) goes to the auxiliary cooler on the radiator and the other end of the cooler goes to the surge tank / coolant tank, soooo they are using the cooler that comes on the radiator this way and Im not sure if thats right or ok....
I actually wanted to use the side cooler for an engine oil cooler setup
My radiator didn't have the nipple for the steam vent return. All you have to do is re-route it into the cooling system. Some without the radiator nipple hack the upper radiator in half and install an adapter to feed back into the system. It looks crappy with the extra hose clamps and the extra cost of the parts. I simply tapped the water pump housing and added an 1/8" NPT nipple.
the port on the crossover pipe (circled in the pic) goes to the auxiliary cooler on the radiator and the other end of the cooler goes to the surge tank / coolant tank, soooo they are using the cooler that comes on the radiator this way and Im not sure if thats right or ok....
Not really, that's kinda nonsense. Involving the oil cooler in that is about like going from DC to Baltimore by way of Salt Lake City.
The WP method is the standard way of setting that up when there's no coolant tank, radiator nipple, etc. Very neat and orderly way of handling it. You can get the little coolant tube off of a truck and make a much neater version of it than with what you've got now. Or, if you have the coolant tank, just route straight to that, without the oil cooler.
Ok thanks, I was thinking that it did not make any sense why the oil cooler was used. Well I gotta change the water pump due to bad bearing noise so now would be the perfect time to reroute it...
Soooo, should I route it to the coolant reservior?
That is supposed to be a return going to the radiator only. Not the water pump or anywhere else for that matter. It flows constantly, regardless of what the T-stat is doing. The pressure in the radiator controls the flow from it. You take that line off the radiator and turn the electric water pump on and it will shoot water like thirty feet. By pressurizing it from the water pump you are fighting the flow from the lines because that is not the direction of the flow. Also, if you have a motor with the back 2 ports blocked. Get rid of the blocks and use a 4 corner line setup. That blocked setup causes air to get trapped and then causes hot spots.
Ok thanks, I was thinking that it did not make any sense why the oil cooler was used. Well I gotta change the water pump due to bad bearing noise so now would be the perfect time to reroute it...
Soooo, should I route it to the coolant reservior?
Definitely don't do that. That will cause hot coolant to boil out of the reservoir. The same thing will happen on an fbody if you accidently reverse the two hoses that connect under the radiator cap (the top one goes to the reservoir).
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Coolant crossover pipe - where does this part go? 
