I wanted to adjust the shift pressure to see what it would be like. I have an 03 Ex 4.6L and am running the TP 93 Octain performance tune.

I did one run at 10% increase. Didn't notice anything different. Then changed to 20%. Been running that for a few days. Didn't notice anything different either . Was looking for a little more crisp shift (less slip).

Should the changes occurr immediately, or should I be looking for it after a while?

Thanks.

 

What did you ask for on your work sheets? If you asked for firm you should notice a difference immediately after installing the program in your PCM.

 

agreeed,I feel a slam @ WOT,happy as a pig in mud

 

Yeah I definitely noticed a change in shift pressure when I had mine first installed... feels great!

 

its immediately when i change mine but their is no slip in mine from the start but if i crank it up you feel it

 

I did request the "firm" setting. No feel of "slam" at all. Seems like stock. Very smooth and unnoticeable. I upped the Xcal to 20% and didn't see much of a difference, if at all, from base tune. I like the feel of my friends Stang 5.0 w/ manual tranny. When he shifts, you know it! I realize it might not be like that, but I thought I should notice something different and immediate.

 

i have the exact same situation with my truck. its an 02' 4.6, i was hoping that it would shift firmer thatn it does right now

 

I too agree that you should notice the difference right away, especially if you max'd out the shift firmness. You should probably give Troyer a call to see what's up.

 

Hi.

And/or do some tranny maintenance . When's the last time the fluid was changed? Just a thought.



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Mine shifts so crisply I can't believe it

Cheers :santa:
Bubba

 

There should be a day and night difference between stock to 93 performance, also as the foot factor gets harder, so does the shift firmness..

Call Troyer and ask Mike....

 

One thing to remember is that the pre-2004 F-150's do not respond like the newer trucks do - the 2004 & up F-150 and the 2005 & up Expedition have the new powertrain & PCM, and they respond much quicker and differently, and their transmissions do a much better job of filling the oncoming clutches.

Another point is that in most cases, these transmission are NOT getting maintained like they need to be - which is a complete and proper FLUSH of the entire transmission & torque converter, and *then* drop the pan and replace the filter, and refill the tranny once again - that must be done at least every 30K miles, Ford's service procedure is not enough. Proper flushing of the entire tranny and then replacing the filter is the only way to properly maintain any automatic transmission. Even on the pre-2001's that still have a torque converter drain plug, you are still leaving multiple quarts of fluid back in the worm trail, etc., so they need to be flushed - just like we describe to everyone in the docs we send out with every set of custom tunes we provide.

For anyone that wants a "snappy" type of upshift in the 2003 & earlier F-150's or 2004 & earlier Expy's, a shift kit should be installed so that the transmission is physically capable of flowing enough fluid volume to be able to give a much harder shift - on those older models, in many cases that cannot be done (safely) by line pressure alone, so it requires the installation of a shift kit.

Remember, "firm" does not mean hard, or neck-snapping - it simply means that it will be firmer than it was in stock trim, and they all are, of course.

If you want it firmer than what we provide in our tuning in the previous generation trucks, then it's time for a good shift kit (pre-2004 F-150's & pre-2005 Expy's). We are not going to just crank up the line pressure to insane levels in those older trucks to get them to shift harder, that simply is not good for them - a certain amount of increase is OK, but beyond that, and you cause problems with increased wear on the front pump, etc. This varies a bit based on the PCM code as well, but a lot of the "older" trucks just do not have as good control over the shifts in the PCM as the newer trucks do, either.

So the bottom line is, for those with the previous body style trucks, if you want it to shift significantly firmer than what we tune it to, you will need to do a *physical* modification to the transmission to make it *capable* of doing that - otherwise ti just can't fill the oncoming clutch quick enough to hit the gears hard.

Now for those with the 4R100 trannies, we can provide you with a simply line modulation valve that will solve this - but for the 4R70W's, they will need a good shift kit, and of course we carry all of that stuff in stock and can go over with you precisely what is involved, none of it is expensive by the way - so just give us a call to go over any of this fellows, OK?

I hope that brief info helps a bit, & thanks for your posts!

 

Go with the shift kit, you will not regret it.