RPM drop with aDTT VB

[Harry Cummings]

installed a DTT VB durning shifts I only
loose maybe 50 RPMs what do the most of You
that have DTT lose?Love the VB.

 

[cullyguy]

Yes, the same here. I understand that will change come DTT TC time.

------------------
Steve in Spokane,01 4x4 Auto Quad Cab SB, NRA Life Member, 99- H-D FLHRCI Coalbalt Blue,00 XR650R Power Upped, Former PSD owner

 

[Mopar-muscle]

harry , what do you have for mods ? thats low to me ???? is this rpm change between the 1-2 shift and 2-3 shift ?

 

[RobbyRam]

I have Bill K. 's 'VB' specially set up for my driving habits and my truck.
The shift from 1st to 2nd is solidly harsh, less than 25rpm, the other shift points at light throttle are probably around 50rpm. The shift from 3rd to 4th at medium throttle brings a huge smile to my face #ad

Bob

------------------
Y2K Awesome Black LB 3500 QC SLT, 24Valve ETC ISB, 4x4, 4:10 LSD, DTT Custom prepared Auto transmission VB, Power Edge 'EZ', DD2's, K&N, Polished Stull Billet Grill/Fog inserts, Chrome Smitty-Built Step Rails, Mopar Chrome-Tipped Mud Flaps, A-Pillar mounted West-Tach Turbo/Pyro/Trans Temp gauges, Rancho 9000's, Diamond Plated Tool Box, + a bunch of other stuff. Fact:The First Fords' had 'DODGE' Engines! The new PSD's need them!

 

[Fred Swanson]

Harry, I replied to your e-mail, and your shift RPM's are normal, because of the stock TC. All of that will change with the DTT TC, when you're ready for that. Then, you'll see why these 2 pieces work their magic. You'll see larger RPMs drops between 1,2 and 2,3 then a small drop into lockup. Kind of like the opposite of what you see now.

------------------
Fred Swanson
Co-Owner
Canyon State Components, LLC
www.canyonstatecomponents.com


'00 QC,SB,4x4,Auto,3. 54 w/LSD,Trailer Package,Tow Package,DTT's
TC(91%)&VB(80psi),DD2's,EZ,HOT PE,K&N RE-0880,Cummins RED Valve Cover

 

[JohnMcIntyre]

Love the VB. [/B]

<font color=blue>
Welcome to the dark side! #ad
You should try a "seat of the pants" experience and then you'll understand how/why the DTT VB & TC combination is a no-brainer. Only problem is that I'm not exactly in your neck of the woods... . perhaps someone else is a bit nearer?


------------------
JMc

2001 Flame Red Sport 3500 QC, 5. 9L 24v Cummins, 4x4 Auto, 3. 54/LSD, 155 inch WB, Agate leather, HX35/14cms turbo, Bill K. VB,TC & "smart" PAC Exhaust Brake , Mag-Hytec transmission & Diff covers, SPA Dual Gauges,DD2s,DD4" exhaust, Rickson 19. 5" wheels, Roadmaster XX,Firestone Airbags, WAAG sidetubes with dually kickouts, Line-X, Grovers , Lance 1130 slide-in Camper, 60 gallon “stock” Aerotank, RS9000s, Reese Titan class 5 hitch. plus the ICE-bomb

 

[inarush76]

If you are coming to the DFW area let me know, I am the installer in these parts and have put in quite a few. I know there is a fellow(S. Gilbert) who lives in Aledo who might let you ride or drive his to feel the difference with the TC. The usual reaction is "I gotta have this!". Aledo is on I-20 west of Ft. Worth. Happy Rammin'

 

[Mopar-muscle]

harry , the VB should not have changed your rpm drop , that function is TC related .

are your shift rpms the same as before the change , you were supposed to record them before you started .

if before the VB your shift rpm was 3000 rpm and if after the VB your shift rpm is 3000 rpm then your rpm drop should be the same .

if your shift points were at 3000 rpm before and now they are at 2700 rpm after the VB change then the rpm drop between shifts will be LESS

if your shift point before was at 2700 rpm and now iit's at 3000 rpm your rpm drop will be MORE .

the higher the rpm the stronger the fluid coupling will become if all is well inside the TC . the longer the vanes on the stator , the closer the the 2 pumps ( impeller and turbine) are , the more the curature of the vanes of the stator the higher the torque multiplication .

edited for less confusion .


if you are still troubled or confused harry , give the shop a call

[This message has been edited by Mopar-muscle (edited 04-27-2001). ]