Transmission Poll

[hpprose]

O-yeah, try not hammering it right off the bat. Do 10 to 25 medium to light throttle acceleration (around 2000 rpm) through the gears. Then stop competely and do it again. That will speed up the learning process of the computer and hopefully keep you rolling!!!!

[06TWO50Diesel]

I will give it some break in time this time, just to be sure. Thanks for the heads up

that's good to know that Tim is running that, because since I know it's an issue at this point, for a truck of his caliber, I'd WANT them!

and yes- I can't repeat enough of how great Ron and everyone over at Suncoast has taken this. Many conversations with John as well. Honestly, it's been a pleasure doing business with them and I view them in a VERY high standard in the diesel world! they've impressed me since day 1!

[Redneck6.0L]

Good luck with your new trans. You'll have to let us know how it feels. When are you goin to the track next.

[StuckinMud]

well at some point here I'll pull out number 6! I've smoked convertors, blown apart a pump, blew apart one way diodes, and cooked quite a few direct clutches! his one...well at wot at 80mph it starts to slip. It sucks because I'm now at stock power trying to keep this alive until I find better parts. Anyway everything in here is based off suncoast pistons using John woods mentality of factory clutches and steels.


Now the important part! Might want to stickey this folks.

Programing the computer to learn the transmission. Btw its a learning unit designed to compensate for wear over the life of the trans.

From official Ford documentation by the guys who developed it..

When first fired up repeat this 3 times with 3 seconds between the shifts:
Neutral to Reverse
Neutral to Drive
Drive to Reverse
Reverse to drive

Again repeat 2 more times.

Next Drive it. While driving you must go through the shift sequence 3 times (1-6)under LIGHT load.
Then again 3 times under medium load (1/2 throttle)
Then again 3 times full throttle! If I have to explain that one its going to invole an bandage requirement on your part!

Then .. You are supposed to repeat the shift sequences , light, med and wot , all in tow haul mode.
When you have done that its programmed!!

As far as clutches go it may take a few hundred miles to seat depending on what philosophy the used regarding the steels. If sanded yes, if smooth it will seat much sooner. If sanded 75% of the wear on the paper will happen during that time.. Word to the wise..baby it. FYI Suncoast kolenes are smooth and coated with a relatively fast break in.

[Abrannan19]

apparently that method isn't worth a crap if you are on trans number 6.

[PSDPlayer]

I just got word. Broke the BILLET Intermediate shaft. Nate you are just cursed.

[Abrannan19]

I agree he is cursed with bad luck on hard parts but good luck when it comes to customer service..

[Santa Gertrudis]

I dont even know what to think. wow

[hpprose]

what the heck is he doing? That's crazy

[Santa Gertrudis]

Im starting to wonder if its something in the tuning that is terribly wrong or something...

[PSDPlayer]

This transmission is equipped with a remote filter transmission fluid filter. Most of the transmission fluid which leaves the front fluid cooler tube connector passes through the remote filter and is directed into the cooling circuit. The remote filter manifold, by-passes the filter element and takes 10 % of the incoming hot fluid and directs it through a small orifice and into a serviceable filter element. The filtered transmission fluid is then directed back into the rear lubrication circuit through the larger opening in the remote filter manifold.


I'm starting to think something is getting back into the trans and pegging the EPC to 300+ psi and its ripping itself apart.

[Santa Gertrudis]

Doug, you are just a wealth of knowledge you know that?

[720Deere]

Cut and paste baby....cut and paste!

[hpprose]

But with an intermedit shaft, extremely hot fluids would cause slippage, right? why would that cause a shaft it break?

He probably needs to take the truck to suncoast and have them install it and look at it.

[!!!PainTrain!!!]

Originally Posted by PSDPlayer

I just got word. Broke the BILLET Intermediate shaft. Nate you are just cursed.

That was an awsome run too. Once he stopped spinning and the full power of the motor went to the trans....BOOM.

[Abrannan19]

Originally Posted by 720Deere

Cut and paste baby....cut and paste!

[Dockboy]

Originally Posted by !!!PainTrain!!!

That was an awsome run too. Once he stopped spinning and the full power of the motor went to the trans....BOOM.

It was because of my nitrous bottle!

Sorry about the luck Nate!

[lubeowner]

copied from Mark on Powerstroke Nation.

If the shifting isn't EXACTLY right it will blow pieces all over the road. Go back up and read the long post I wrote. If you make a 3-5 shift and don't release the intermediate clutch fast enough you'll lock the output shaft to the case, and the rear wheels will stop turning for just as long as it takes to break something.

Here is his long post:

It's WAY harder to make software shift a TorqShift than a 4R100, due to the design of the two transmissions.

The 4R100 is an all non-synchronous design. This means that for each upshift all that happens is a clutch is applied. All you need to do is control the pressure to the oncoming clutch and you're all set.

The TorqShift is MUCH more complicated. The 1-2 and 5-6 shifts are the same, they are non-synchronous and all you need to do is control the pressure of the OD clutch. The other shifts are the problem.

The 2-3 is a swap shift. This is a special catagory of difficult shift. I believe Ford is the only trans maker in the world that still does swap shifts. Others have put swap shift transmissions in production and then replaced them within a few years. To make a swap shift the TorqShift needs to release the OD clutch to downshift the OD gearset while applying the intermediate clutch to upshift the Simpson planetary gearset. This is an upshift and a downshift occuring at the same time in the same trans. From my experience these two shifts MUST complete within 30 milliseconds of each other or it's going to feel awful. If the OD releases too soon the engine speed will flare. The amount of flare is dependant on how much sooner it completes. If it completes before the intermediate has enough capacity the trans goes back to first gear! Then it has to make a 1-3 shift. A few WOT 1-3 shifts means the trans comes out to replace the intermediate clutch. Been there, done that. If the OD releases after the intermediate comes on you end up in 4th gear (1.09:1 ratio) then downshift back to third gear (1.54:1 ratio.) Either way it's really bad.

Now if you made it though that you need to make a 3-5 shift. 4th gear is the 1.09:1 ratio that really isn't used. The 3-5 is a synchronous shift. It's timing requirements are about the same as the swap shift, but there is no downshift. To make the shift the intermediate clutch has to release while the direct clutch applies. If the intermediate releases too soon you get an engine speed flare. If the intermediate releases too late you get a tie up. A tie up is when all three pieces of the planetary gear set are held from turning. This means the output shaft of the trans STOPS. That's not a pleasant thing to have happen when you're at WOT making a 3-5 shift. You can lock the wheels on an upshift! I've done this, too. You can also break expen$ive parts doing a tie up.

Now start thinking of the combination shifts that can happen. How about cruising at 55 MPH behind some slow poke on a two lane road? A passing zone opens and you floor it. Now you may want to go from 6th to 3rd gear. You need to release the direct clutch and apply the intermediate. That's a synchronous shift in reverse.

As you can see from just these few examples it isn't a trivial task to make one of these transmissions shift. It's what I did at Ford for quite a few years, three of them working on the TorqShift. I'd be really surprised if anyone makes a controller for the TorqShift that works really well. I think someone could make one that does some basic shifting, but getting one so that it shifts at least as well as a stock trans is going to be a HUGE task.

[mikehalseyjr]

My suncoast went up the creek, I called suncoast and was told by the late Mr. Webb that i didnt have a suncoast trans, and I was on my own. But the following week I saw a suncoast ad in Diesel Power with my pickup in it.

FYI

[Mooring Product]

Originally Posted by mikehalseyjr

My suncoast went up the creek, I called suncoast and was told by the late Mr. Webb that i didnt have a suncoast trans, and I was on my own. But the following week I saw a suncoast ad in Diesel Power with my pickup in it.

FYI

I have seen that picture. I thought it was your truck...