B&M transmission pan for the 8HP70 and 8HP75

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Wild one

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Looks like PPE has some competition.According to the literature it holds about 2 quarts more fluid then the PPE does



The PPE pan


 
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HEMIMANN

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Nicely ribbed for extra heat transfer, too! Price seems decent.
 
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Wild one

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Nicely ribbed for extra heat transfer, too! Price seems decent.
The PPE pan is also ribbed,but this one looks like it holds 4 quarts more then the stock pan,or roughly 2 quarts more then the PPE pan. I have no complaints with the PPE pan on my truck,but this one might be as good or better with the fact it holds more fluid
 

HEMIMANN

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Wish I had the ZF8. But ain't buying a new truck after all the customization I just did with mine. Not as much as you guys, but enough for me. Only got 50k on it anyway.

It's really the only thing I wish for. Or the upgraded VB before I already tuned it. Ah well, life isn't perfect.

I'm doing a bike build now anyway.
 

PaleFlyer

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The PPE pan is also ribbed,but this one looks like it holds 4 quarts more then the stock pan,or roughly 2 quarts more then the PPE pan. I have no complaints with the PPE pan on my truck,but this one might be as good or better with the fact it holds more fluid
Does more fluid really help anything? I mean I know more thermal mass, and more ability to hold schmoo before it potentially circulates, but overall, does it really make any major impact to have more fluid? Other than the hit to the wallet to change it?
 
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Wild one

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Does more fluid really help anything? I mean I know more thermal mass, and more ability to hold schmoo before it potentially circulates, but overall, does it really make any major impact to have more fluid? Other than the hit to the wallet to change it?
It's going to put that extra fluid down farther and will help with cooling.You'll have more fluid that the air circulating under the transmission can cool,but it's also that much farther away from the heat of the transmission. Wouldn't be any differant then running an engine oil pan with more capacity. Usually there's not really any downsides to having more fluid capacity,other then the cost to change it.
 
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Wild one

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Cork gasket? Eww.
I'm not a fan of a cork gasket either,they could of done like the PPE pan,and milled a groove into the pan to utilize the factory o-ring gasket.Other then that,i don't see to many downsides to the B&M pan though.
 

crazykid1994

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Hell raiser has a transmission pan too. Smooth milled aluminum with factory oil capacity and replaceable filters. However, they are very bad at communicating so that’s all I know. No price. Not sure if they coat them. I’ll end up with the ppe pan
 
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Wild one

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Hell raiser has a transmission pan too. Smooth milled aluminum with factory oil capacity and replaceable filters. However, they are very bad at communicating so that’s all I know. No price. Not sure if they coat them. I’ll end up with the ppe pan
Charles can be a sumbitch to get ahold of at times Khris.I used to help promote him,but he's had enough callbacks lately,i've given up on promoting him . He was supposed to send me one of his thermostat bypasses for the cars 8 speed to try out ,2 years,and several messages later i still haven't seen it.
 

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I'm not a fan of a cork gasket either,they could of done like the PPE pan,and milled a groove into the pan to utilize the factory o-ring gasket.Other then that,i don't see to many downsides to the B&M pan though.

What, you don't like the 19th century?
 

PaleFlyer

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It's going to put that extra fluid down farther and will help with cooling. You'll have more fluid that the air circulating under the transmission can cool, but it's also that much farther away from the heat of the transmission. Wouldn't be any different then running an engine oil pan with more capacity. Usually there's not really any downsides to having more fluid capacity, other then the cost to change it.
I'm thinking a little on the fuel economy side here, but more fluid, in a bigger pan, means cooler fluid. Cooler fluid means thicker, so more friction/resistance to motion, so more of our horses in our stagecoaches (I read the whole thread before I responded!) are needed just to make the tranny rotate... So we get less mileage, but at what benefit? If we do it right, we should be changing every ~60-70k on the tranny anyway, so... Less economy, and more expensive changes, for... what benefit? I know thicker oil can "stick" better, but do we really get much better wear protection from what is really probably only a few degrees?
 
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Wild one

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I'm thinking a little on the fuel economy side here, but more fluid, in a bigger pan, means cooler fluid. Cooler fluid means thicker, so more friction/resistance to motion, so more of our horses in our stagecoaches (I read the whole thread before I responded!) are needed just to make the tranny rotate... So we get less mileage, but at what benefit? If we do it right, we should be changing every ~60-70k on the tranny anyway, so... Less economy, and more expensive changes, for... what benefit? I know thicker oil can "stick" better, but do we really get much better wear protection from what is really probably only a few degrees?
I'm guessing you've never experienced the thickness of the factory ZF fluid,water is damn near thicker then the factory fluid.I highly doubt there'd be a measurable differance in the milege by dropping the fluid temperature 5 to 10 degrees.But there's probably a measurable differance in the life of the transmission. Point being the HD trucks with the 8 speed hardly ever get over 170F while towing 7,000+lbs,they seem to run more in the 165 to 168 range,while the 1500's will run on average 20 degrees hotter,so their must be a reason the HD's run cooler,and i'm guessing it has more to do with keeping the 8 speed alive. I know the PPE pan pulled close to 5 degrees out of my 8 speeds operating temp,so i would think this pan would do the same or more,and i couldn't see any change in the trucks milege,in fact i can't even see any measurable change in milege on a 500 mile trip,with the transmission running at 140 which is where it runs at now. Maybe over a 100,000 miles you might see a bit of milege differance,but i even wonder about that.On a cool day (30 to 40F) and a easy drive,my wifes 6.4/8 speed Challenger will take well over 70 miles to even crest 120F on transmission temp,and i can still pull down 31/32mpg with it,basically the same milege it'll get with the transmission at 170 to 180F. If you do any towing i think this pan or the PPE pan are good investments,just for the fact you have more fluid volumne to absorb contaminents and heat spikes. You should buy this pan and report back on whether you see a milege drop,as right now this is all speculation,and you could be the one to try out your speculations
 

crazykid1994

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I’m lucky if I see transmission temps above 130°f which is why I’m adding the in line thermostat. It hit 60°f last week and my transmission temp was 120°f. I managed to get my trans oil temp up to 170° the other day though. Lmao. Wanna guess how? Pulling a stump out in my yard. Held over quarter throttle for about a minute at a time for about 10 minutes with a minute between each. Think it was around 2300 rpm just riding the converter in 4 high. 4 low kept digging holes all 4 tires spinning :Big Laugh:. Pulled the dang stump out though. Engine oil sat around 200° and coolant temp at a solid 195°. Had a 3 ton hoist on the stump too and the hoist was binding from the weight of the stump. The one guy running the 145° stat said his transmission sits around 156° so I figure if I add the oil pan next year when I do my transmission drain and fill I should be pretty well set.
 

Rlaf75

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I know with the stock pan and trans oil on a stock truck with 10k miles the trans temp was hovering about 190 while pulling my enclosed trailer last weekend. I dont have the larher pan but I really can't see a down side to running a few more quarts of oil other than the cost of the oil.
 
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Wild one

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I’m lucky if I see transmission temps above 130°f which is why I’m adding the in line thermostat. It hit 60°f last week and my transmission temp was 120°f. I managed to get my trans oil temp up to 170° the other day though. Lmao. Wanna guess how? Pulling a stump out in my yard. Held over quarter throttle for about a minute at a time for about 10 minutes with a minute between each. Think it was around 2300 rpm just riding the converter in 4 high. 4 low kept digging holes all 4 tires spinning :Big Laugh:. Pulled the dang stump out though. Engine oil sat around 200° and coolant temp at a solid 195°. Had a 3 ton hoist on the stump too and the hoist was binding from the weight of the stump. The one guy running the 145° stat said his transmission sits around 156° so I figure if I add the oil pan next year when I do my transmission drain and fill I should be pretty well set.
The nickname fits you Khris :Big Laugh: Any progress on getting the Improved Racing thermostat installed.I'm thinking of one for the wifes Challenger,but waiting for your report on it,before springing for one,as they're basically double the price up here:waytogo:
 

crazykid1994

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The nickname fits you Khris :Big Laugh: Any progress on getting the Improved Racing thermostat installed.I'm thinking of one for the wifes Challenger,but waiting for your report on it,before springing for one,as they're basically double the price up here:waytogo:
Should be going in this month. Been waiting for some down time so I can do the engine and trans at the same time. Hopefully within a couple weeks.
 
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Wild one

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Should be going in this month. Been waiting for some down time so I can do the engine and trans at the same time. Hopefully within a couple weeks.
I'm looking forward to your thoughts on it :waytogo: If it works like we want ,i'll probably spring for one.
 

crazykid1994

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Current temps. Been driving for over an hour. Cruise control at 80mph. Just pulled off to the rest stop.
 

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