I had this Frank Lupo 3200 stall convertor on my 76 chevy truck. I put the complete drive train into my wagon. My tranny temp was good in the truck. In the chevelle not so good. On the highway they will stay around 190, but once I get in stop and go traffic, they start going 200-240. I am going to park the car now till I can take care of this problem. My ? is if I decrease the tire height on the rear will this cause rpm to go up? The tires I have on the back now are 31 inches tall. I guess you all know where I'm going with this. I really don't want to but another convertor, but I guess if thats what I have to do I will. I figure if I can get rpm up on the engine maybe I can get the tranny temp down to something more appealing. A good convertor just cost a fortune, and there is no point putting a cheap one in this thing. Any suggestions will be appreciated!

240* will kill a trans pretty quickly! In reality you should be nowhere near that temp with a (11" or 10" ?) converter IMO. I ran an 8" that went to 5K and never got near that point, even on the street. What you may need to do is find out if the converter uses an extremely negative fin angle to achieve that stall speed. If so, that is why it generates so much heat. Excessive internal clearances will do that too. IMO the best thing to do is run a smaller diameter converter with positive fin angle to get the desired stall speed. I have had some 10" and 9.5" converters done for guys with the fin angle tightened up to drop stall speed to the same point as you would normally see in a larger diameter converter. But, due to the fin angle change the smaller diameter converter has far better efficiency and performance than the bigger ones, but the same stall speed. The cost is no higher to have one built this way either. $355 for a 10" and $375 for the 9.5".

On a th400 the fluid lines, can you tell me which one is in, which is out? Back to above my temps were fine on my truck, same drive train, I have my b&m tranny cooler under the car, maybe it just isn't getting enough air, it is also about 5" away from exhaust pipe, about 3 feet further back from collector, I did build a scoop to catch air to blow across, and it did help on highway, just not in city.

Have you ever flushed the cooling system?

I assume you are running the B&M cooler in line with the factory radiator tranny cooler? Trucks use a higher capacity cooling system and have more airflow area thru the radiator...it does make a difference.

Trucks are farther off the ground. Your getting less air and more heat from the asphalt. I wouldnt't even try that setup in Fla.

I am moving the b&m cooler to the front and I am going to run it thru my radiator, which is also the radiator off my truck. I will see what happens next.Thanks!

Well I have moved the b&m cooler to the front and bought adaptors for the radiator so I could use the AN lines. So far it is running between 150 and 180. I tried to make it get hot, that's the 180 reading, so far it seems it is going to be fine but after some more driving, and hotter outdoor temps we will see.