Extra capacity trans pan

[Slow ride]

I have an Allison 1000 5 spd transmission in a 2001 NRV 34' Carribean DP and am preparing to switch to transyn on next change. Is it worth while to change to a larger pan to obtain extra capacity and a port for a temp gauge? I do pull a tow vehicle/boat and we live/travel on moderate to mountainous roads.
Eric

[DAN L]

Quote:

Originally Posted by Slow ride I have an Allison 1000 5 spd transmission in a 2001 NRV 34' Carribean DP and am preparing to switch to transyn on next change. Is it worth while to change to a larger pan to obtain extra capacity and a port for a temp gauge? I do pull a tow vehicle/boat and we live/travel on moderate to mountainous roads. Eric

i suggest you spend your $ on a scan gauge 2 from oemy so you can monitor your tranny temp. oemy will pre program the sc2 (x gauge items) for your moho before he ships it to you. i have had my sc2 since 2006 and still don't have all the x gauge items in mine, just most of them. i got mine from mileage pros.
the only time my tranny has run warmer that usual was when i descended from 7k ft to 2k ft in about 15 miles in first gear to control my speed with minimal service brake usage. i was towing my nissan altima on a dolly. this was on the east side of mt charleston, nv. when the temp rose to 225 degrees, i stopped and let it idle for 10 minutes to cool off. ambient temp was 50-60 degrees. next time i go up there, i will unhook the car and let my dw drive it down the mountain. we stayed in the fletcher view cg with 50a electric for a week @15.50 a day. this is a beautiful area to visit.
don't forget to change the oil filter and reuse the magnet. use the allison filter. oemy sells them too.

Oemy's Web Site - OBD II Scan Tools

ScanGaugeII - Trip Computers + Digital Gauges + Scan Tool

[Midniteoyl]

The extra quart or two will only serve to slow the tranny from getting to operating temp, not keep it cooler. Its better to make sure your tranny cooler is up to snuff than install a deeper pan that will be just that much closer to the ground.

[Slow ride]

Thanks for the info. I will stay with the stock pan. I am going to look into the scan gauge that was mentioned.
Eric

[PalmSprings]

I recall that scca road racing and quarter milers all have massive g forces when accelerating,decellerating and in turns. The extra oil in a deep pan is to be sure theres enough oil in those circumstances to still lube the other moving parts opposite the direction of force.
I assume you wont be putting you rv through those g forces? If so Id sure like to know your quarter ETs.

Quote:

Originally Posted by Slow ride Thanks for the info. I will stay with the stock pan. I am going to look into the scan gauge that was mentioned. Eric

[Midniteoyl]

Quote:

Originally Posted by PalmSprings I recall that scca road racing and quarter milers all have massive g forces when accelerating,decellerating and in turns. The extra oil in a deep pan is to be sure theres enough oil in those circumstances to still lube the other moving parts opposite the direction of force. I assume you wont be putting you rv through those g forces? If so Id sure like to know your quarter ETs.

The deep pans, especially the ones with 'kick-outs', are actually NOT to hold more oil, but to get that oil farther away from the crankshaft to prevent windage and foaming, and to better help the pick-up used with these pans to stay covered. Extra oil to combat g-forces, if needed, is provided by an 'oil accumulator'.

Oil Accumulators - Tech Articles - Stock Car Racing Magazine

How to Pick the Right Oil Pan with Canton - LSXTV.com

Here's alittle tid-bit: On most cars w/a V6 or V8, the cooling system is 10-12qts. Most think this is for cooling. Not so. Well, ok, it is, but not for the reasons most think. There is no 'cooling mass' with water when used in this way. Sure, it'll take longer to heat up, but once there, the extra water is doing nothing. 4 gallons at 220F is that same temp as 2 gallons at 220F. So why the extra water? Because of the radiator area required to cool a big V8 at 20-30mph. Below that and a fan kicks in, above that and the big rad is not fully utilized (thus the thermostat to keep things warm). To prove the point, auto engines that have been converted to aircraft use routinely use 1-1.5 gallons of water running through 2 standard GM A/C Evap coils.. of course, they have a huge fan (the prop) blowing on them while on the ground, and 150-200mph wind while in the air. In the air, the systems are actually still too cold and still require the use of the thermostat...So no, have 'extra capacity' doesnt necessarily mean improved cooling. Having a good cooler does.

I read somewhere once that if you can lower normal tranny temps 20F you can almost double its life.