B&M ShiftPlus

[conig]

5.0l96EXP.

any chance I can talk you into drawing something up in paint for me? I'm not getting the schematic and Im thinking maybe a standard circuit style will make it easier to under stand.

If you email it to me Ill post it as an image and host it.

 

[conig]

ok im lost as to were the ends of the resitors go to I guess. heres what I came up with in paint and what I need to know is what I do in the spots I marked with blue squiglys.

 

[Gonzo]

So, is part#70381 for the v8? I need one for the sohc v6 (1998), or at least the schematic.

 

[5.0L96Exp]

ok im lost as to were the ends of the resitors go to I guess. heres what I came up with in paint and what I need to know is what I do in the spots I marked with blue squiglys.

AHHHHHHHHHHHHHHHHHHhhhhhhh.. conig whats your email.. Ill send you the schematic.


Gonzo.. Check out http://bmracing.com/index.php?id=products&sid=3&cat=15 for your application.

 

[conig]

well guess I got it incorrect then.

I sent you a private message with my email.

 

[inh]

well , i went and BUILT ONE AND IT WORKS. kinda.

it does indeed firm up the downshifts as well, which i dont really like. also, it made my tranny clunk when downshifting, and then my 4x4 lights started flashing, which is odd as i guarantee its not a transfercase issue as i swapped out the eelctric one with a manual 1354

i went to radioshack and spent $7 for 4 1ohm 10 watt resistors, a small pack of blade connectors (i already had the ones b&m gives you to connect to the pcm wires from when i bought one awhile ago and thought it didnt work. loking back i dont think i stripped teh shift plus wires correctly or something..) i connected a 1ohm resistors across the wires and that was as far as my testing went, but it does work! good job man!

 

[5.0L96Exp]

I’m not sure I would recommend 1 ohm resistor, that’s even less than the Level 2 setting. Even B&M doesn’t recommend the Level 2 setting (ie 1.5 ohm resistor) for regular everyday driving. a) Its hard on the hydraulic pump as your line pressure goes way up and b) I am not sure how much current the PCM is capable of sinking. ie you have lowered the resistance seen by the PCM from 4 ohms to 0.8 ohms. You should use either a 1.5 ohm resistor for the Level 2 setting, a 2.5 ohm for the Level 1 setting or no resistor at all for Level 0.

 

[inh]

well i hooked up 2 of the 1 ohms together and it didnt make any noticeable difference :-/

 

[5.0L96Exp]

I still wouldn’t go below 1.5 ohm.. Just because you cant feel a difference doesn’t mean its not working. If the Duty Cycle on the PCM goes up to 100% (for whatever reason) and you have a 1 ohm resistor in there than your talking 14.4/0.8=18 amps.. Instead of the usual 14.4/4=3.6 amps or 5 times what the PCM usually delivers. Is this bad, maybe. Am I going to be the guy to buying a new PCM, nope. Like I said before, this is a poor mans modification. It works, but its not the best solution.

 

[tcbradbury98]

Can I get a copy of that schematic as well? Would it work for my 98 ex w/ 5.0? email is tcbradbury98@yahoo.com, thanks

 

[conig]

well I never though I was this slow but I guess I am. Im still not getting the schematic.any way though am I reading this as I can just put a 1.5phm resistor to a one way switch and run a jumper inbetween the wires listed above? Im really only doing this for occasional use, experimentation and when towing.

heres the schematic.

 

[Gonzo]

X24, is the B&M part#70381 what you have installed on your 5r55e?

 

[inh]

made up a 2 ohm resistor pack today, rated fro 20w becasue it was either that or 10 watts. definatly not as harsh as using just 1 ohm, but im not sure i like it. i think i would prefer a valve body mod firmer shift than this as this feels a little wierd, but i guess having the ability to easily disable it makes it easier to deal with.

 

[Afboy143]

So this basicly makes your tranny shift harder and prevent slippages? Is it harder on the tranny since now it has to shift harder?

 

[5.0L96Exp]

conig.. You can use a 1.5 ohm resistor and a switch for Level 2. Or you could use a 2.5 ohm resistor and a switch for Level 1. This way you can choose between regular shifts (Level 0) or a single different level of your choosing.

 

[conig]

well lets see if now I know whats going on anyway I couldn;t just do it this way. its easier for me to conceive this way. I don; think ive used paint this much in the last 5 years. Also weres the PCM yet ive not looked for it I told myself I'd leave this truck stock. or is it bast to tap at the transmission?

does ford use any type of torque management that can be removed/modded so the injectors use full force when shifting. (dodge cuts the injectors down during shifts, theres lots to be gained 1/4mile by wiring a switch to this wire)

 

[inh]

nopethat wont work. take teh middle wire and resistor, and swap it with the plain wire on the right, and you'll be set. make sure you get a 3 position switch, so that in the middle position it is disabled, and then either of the two side positions, or front/back positions, will use the 1.5 or 2.5 resistors.

 

[jester6]

Anyone know if theres a mod like this for a 2000?

 

[98Firehawk]

Need help with B&M

I know this is an old thread, but I made my own B&M ShiftPlus using resistors and a switch, however I don't know where to connect the wires. I have a 97 XLT 4.0 SOHC with 5R55E, and I don't have a red wire or white w/yellow stripe at pin 37 or 38. Please help. Thanx

 

[98Firehawk]

Duh

Figured it out, DUH, was looking at wrong pins. Anyways, got everything connected and WOW what a difference. Anyone beefing up their X should do this mod, not only are the shifts quick and firm, I also noticed more power between shifts. I have a 4.0 SOHC with 5R55E, the only other mod right now is an intake, and I still notice the difference. I used two 1ohm 10watt wirewound power resistors from RadioShack for $3, connected them in series to get 2ohms, and connected them to the two wires (pin #97 and #81) on the large PCM wire harness on the firewall (under the hood, not inside). I also connected an inline switch just in case I would need to turn it off. Getting ready to do the TPS mod next...