Originally Posted by 2000SilverBullet
The higher temps are caused by limitation with the radiator cooling not the LIM passages IMO.
As soon as the air flow resumes in hot temps my coolant drops back to 160 F.
It only climbs to 185 when stopped in traffic or sustained high speed driving when the trani temp climbs to 200 F. My trani oil circulates thru my rad as well as my auxillary cooler.
Not doubting that opening up the TB passage partition will help but I haven't noticed a problem.
Might be worth a try thou next time I have it off. Don't think it would hurt.
Just because your temps will drop when you get moving dosen't mean the radiator is the problem.
If the coolant isn't flowing to the correct places at the correct rate, it'* not going to cool the engine properly.
Blocking the TB passages changes the direction and flow of coolant from how it was originally intended.
IMO you won't know if your stock radiator can maintain a 160* temp in harsh conditions untill your coolant is flowing closer to stock.
As far as the L36 goes. You will never ever have to worry about a UIM failure if you block the TB passages at the LIM. Then if you modify the wall behind the coolant bypass plate, you can get the coolant flowing similar to stock. My HVII blocks the TB passages at the LIM if anyone reading this doesn't know.
I can understand how the EGR heats up the aluminum casing of the superchargers and transfters heat to the TB. But, I don't see the composite L36 UIM transfering heat to the TB to the same degree.
I'm just offering this as something I read about, tried, and worked in my application. Your not really going to know if it will help your specific application unless you give it a shot.