ok i know i have seen the part number on here for the B&M shift plus as 70380.
why is this part number not linked to the 4t40E transmission? it is for another type of GM tranny. will it still work effectively on my transmission?
secondly, i know its a three position switch (1 / off / 2). i remember reading something somewhere about being able to adjust the amount of time it takes for the clutch (TCC) to engage. it is normally set for 5 seconds, but you can adjust it to lock the torque convertor faster but not slower. this is what i am mostly looking for so i can improve my fuel economy.
was the TCC adjusting on the Shift+ or the Autotrans interceptor?
if it is not on the Shift+, has anybody noticed imroved fuel economy aswell? the reason why i am so set on the B+M is that i can pic it up for less than $50 CDN, thought it was a good deal.
Injection is nice but id rather be BLOWN!
ok i did a bit more research and answered my own question. in doing that, i found another q's?
ok...
with the autotrans int, it sounds basically like 2 potentiometers (pots). basically, i need this confirmed. i know the first one on the outside of the case is a big pot that adds resistance in line and increase the line pressure electronically.
the B and M does this too, but doesnt use a pot, it uses resistor banks that adds different resistance depending on your setting.
now, is the second adjuster inside the case of the auto trans a pot aswell? which leads on the plugs does that effect? i need some one to take a mulit meter and meter the ohmic resistance of the second adjuster. i need to know what the resistance is when it is at the minimum setting and what it is at when it is on the max setting.
basically, i wanna buy the B and M, but i would like to be able to adjust my time delay for my TCC aswell so i can get even better fuel economy. if it is basically just 2 pots, i can modiffy the B and M shift plus to adjust the TCC time aswell, but i need to know which leads the second adjuster effects and the exact values.
i also want to know if i can buy the female and male connectors that the autotrans uses so you dont have to splice wires. its not that i dont like soldering, its that i want to do it this way so i can remove it if / when the car is sold or taken to the dealer for a recall, etc.
i need help with this guys and girls! basically, if i can do this for cheaper than the auto trans is, everyone with the BandM and some wiring skills (or pay me to make you one
) can produce the effects of the auto trans hack with the BandM, or even build it yourself with a couple of pots.
thanks to all in advance.
rob aka whitegoose.
Injection is nice but id rather be BLOWN!
The B&M Shiftplus isn't listed for the 4T40E because it tends to break it. Why? Don't know, no one has ever looked into it. I suspect the settings (especially on "2") are too intense for the 4T40E. It is intended for the 4T60E, 65E, 80E, etc... bigger transmissions. It works, but for how long no one can tell.
Autotrans does use two pots to adjust the TCC clutch apply delay, and the line pressure. There's more in the box than JUST pots tho. I couldn't tell you what... it's been so long since I looked inside one. Older units had both on the back, the newer ones had the TCC one covered up, but was still inside the box and you could drill a hole to access it.
Best bet is to try and find a used unit and reverse engineer it. I sold mine for $25 when I swapped in a 5 speed.
ya i think i will try and do that.
i woudnt mind wiring it in to the b and m, not like i would ever use it on setting 2 anyways, i would probably not ue it on setting one very much either.
regardless, i either need details on the autotrans interceptor or i need the unit itself. the unit itself would be best....hell, i could make this part of a project in my course in college (electrical engineering) and get my profs to help me
well ive pretty much come to the conclusion that both pots have an ohimc value of 0 (zero) for the minimum, or you would never be able to turn the bloody thing off. if i could find a wiring diagram that illustrates the plug where both units are wired to, i could probably engineer the unit from the ground up.
i know where the wires for the B+M go because ive looked at the install posts, but i have no idea what wires they actually are, nor do i have any idea what wires the pot for the TCC adjuster needs to be.
god i need to get one of these units.
anyways, if anyone has any info on these units, let me know.
Injection is nice but id rather be BLOWN!
