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I have my TV pressure maxed out under light throttle 1-2 happens at 20mph, 2-3 at 40mph, and for the 3-4 upshift I have to let off no matter what. No slip in any gear, 1-2 and 2-3 shifts are pretty firm even at WOT, and 3-4 literally shakes the car like it's got a manual and I just dumped the clutch. Love it
lol i ment that without a chip the MSD box will run to something like 8k, im not running a chip in mine, but i dont rev it over around 5100 because the cam runs out. with the new cam it should be able to pull to around 6400
Having casually tossed together a few AOD's myself...someone here needs to actually buy a transmission pressure gauge set, or have it set at a transmission shop, usually around 2-3 psi (off of the TV line port on the pass. side of the tranny) at idle.
High TV pressure? Also makes for high main line pressure. Bad primarily for the seals, especially for the seals in the clutch baskets. Altering TV pressure to change shift points is a bit of a no-no. The lifting you have to do to go into O/D? That is because line pressure is too great to allow the 3/4 valves in the valve body to let the 3-4 shift function properly, hanging the tranny in 3rd gear.
Okay, if high TV pressure is bad. How do you lower high TV pressure?
Even with the TV cable disconnected, I still have ~50psi at idle. Part throttle 1-2 shifts occur at ~20mph, part throttle 2-3 shifts at~40, don't even think of OD before 55. This is a bit high for my tastes being that these are the part throrttle shifts for just staying with traffic, not foot to the floor acceleration.
Having casually tossed together a few AOD's myself...someone here needs to actually buy a transmission pressure gauge set, or have it set at a transmission shop, usually around 2-3 psi (off of the TV line port on the pass. side of the tranny) at idle.
High TV pressure? Also makes for high main line pressure. Bad primarily for the seals, especially for the seals in the clutch baskets. Altering TV pressure to change shift points is a bit of a no-no. The lifting you have to do to go into O/D? That is because line pressure is too great to allow the 3/4 valves in the valve body to let the 3-4 shift function properly, hanging the tranny in 3rd gear.
Interesting write up, thanks for the info. As far as shift points go, what do you recommend?
Nick
88 Colony Park LS
G-pa's old car, but he's cruisin around heaven in his 69 wagon now
Future plans:Semi HO conversion, or Explorer motor swap, shift kit, PI springs and sway bars, KYB-GR2 shocks
i'm at 200,000 mi on the aod......bumping up the pressure bought me time, and the tranny works great.....i dont see a problem with that. been holding up to the new engine for 3 yrs now lol
1986 lincoln towncar signature series. 5.0 HO with thumper performance ported e7 heads, 1.7 roller rockers, warm air intake, 65mm throttle body, 1/2" intake spacer, ported intakes, 3.73 rear with trac lock, 98-02 front brake conversion, 92-97 rear disc conversion, 1" rear swaybar, 1 3/16" front swaybar, 16" wheels and tires, loud ass stereo system, badass cb, best time to date 15.94 at 87 mph. lots of mods in the works 221.8 rwhp 278 rwt
2006 Lincoln Town Car Signature. Stock for now
1989 Ford F-250 4x4 much much more to come, sefi converted so far.
1986 Toyota pickup with LSC wheels and 225/60/16 tires.
2008 Hyundai Elantra future Revcon toad
1987 TriBurner and 1986 Alaska stokers keeping me warm. (and some pesky oil heat)
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