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Originally posted by LSMITH





Bob, can I ask why we are nitpicking this to death? The test is pointless if you can even call it a test. The TC, as John pointed out, is where the drag was an issue.



Ok, never never mind about the test. I'll tell ya what, I'll tell you if and how much I like it, ok? Then I'll give anyone who wants to know how it works a ride at MM. That sound like a good test? Later Bob.
 
transmission swap

Cummins Corvette,



Are you concidering an upgrade to the ATS transmission, if so I have a 97 auto here with 123K easy miles on it (no towing). I'll trade you for the DTT transmission and some cash if interested. Let me know and we'll see if we can work something out.



Thanks
 
canderson





i would love to go for a ride in a ats truck. but it won't be a fair comparison they are way down on hp. :D i like stirring the pot.



jim
 
Originally posted by Steve Roseman

A manual transmission will turn the wheels in nuetral...



... nit pick the competition to death.



I'm not exactly falling for the Manual transmission will turn the wheels in Neutral Statement. (Where's the Barbera Streisand Meter aka BS Meter?)



Nit Pick the competition... . I think the fact Bob may be trying to point out,, and this might call Bob back in, BUT, what I feel Bob is saying is that ATS is bending and stretching the truth. (Alot of Marketing $$ IMO)



It's possible to shift locked, The D-Max/Allison Does it in my Dad's truck all the time, and we gross Empty at 26K+ 40,000 miles and one filter/fluid change/flush (Dealer insisted on flush) the transmission works flawlessly. One difference is,, the ECM cuts fuel back ALOT when it shifts,, Just like if somebody was pushing in the clutch, letting off the gas then romping back on it. (No RPM Spike/drop or signs the TCC dis-engages or engages between shifts)



My $0. 02



Merrick Cummings Jr
 
BUT, what I feel Bob is saying is that ATS is bending and stretching the truth. (Alot of Marketing $$ IMO)



What do you think Bob is doing? IMO Bob's true load (drag) test is a joke. It proves nothing. All it does it try to stir up doubt about the ATS TC.
 
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Originally posted by MCummings





I'm not exactly falling for the Manual transmission will turn the wheels in Neutral Statement. (Where's the Barbera Streisand Meter aka BS Meter?)

Merrick, No BS on the manual transmission turning the wheels. Jack the rear wheels up on a manual transmission truck in neutral and let out the clutch. Unless there is a bunch of brake drag, the wheels will spin.

I had a '90 gasser with a four speed that would actually creep down the driveway when I would start it and let out the clutch in neutral. Of course it would only do that on those -20 degree mornings.

Bob's clutch drag test is what needs the meter. I don't have the ATS or DTT transmission, so I'm not biased.
 
Merrick, excellent observation about shifting and defueling.



Jim(CUMINNTSTRKN), Ouch! That's hitting below the belt. LOL.



Chris Anderson, get it and bring it to MM02, then all who want to can take it for a spin. Only 4 more days to go. Oh yeah, we need a test trailer to hook you up to. We wanna see how your stator hooks up.



I believe one of the reasons Bill's post was pulled was related to ATS's claim of no TC clutch drag while Dis-Engaged. Although this defies the laws of physics, hold your questions until Friday's tech presentation by ATS. Hopefully we'll have an answer then. I'm sure it'll come up.





What's the longest thread so far, are we anywhere close to it?
 
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Originally posted by Steve Roseman



Merrick, No BS on the manual transmission turning the wheels. Jack the rear wheels up on a manual transmission truck in neutral and let out the clutch. Unless there is a bunch of brake drag, the wheels will spin.

I had a '90 gasser with a four speed that would actually creep down the driveway when I would start it and let out the clutch in neutral. Of course it would only do that on those -20 degree mornings.

Bob's clutch drag test is what needs the meter. I don't have the ATS or DTT transmission, so I'm not biased.



Hey, I think I'll go try it next opportunity I get,, Last time I was getting my differential rebuilt I didn't recall the rear tires spinning in neutral,, but,,, I've been wrong before. LOL



Fred,,Longest thread on TDR probably was TimTheToolManTaylor's three-word story.



I need to give you a call Fred,, Got a few questions for ya. . Edge Comp and Your Company Logo.



The D-Max de-fuel is noticable,, the engine's tone changes, and the front end does drop down and pick back up in the 2-3, 3-4, and 4-5 shifts, but in the 1-2 shift it only pulls harder,, kinda like powershifting 1-2 is unlocked.



In tow haul mode the Chevy unlocks the TC in deceleration around 30 or 40MPH,, without tow/haul the TC unlocks at 50MPH.



In ACCELERATION (WOT Tow/Haul) the TC locks up near redline in 2nd gear. Feels like a gear change, but RPM drops only ~250-300RPM.

Light Acceleratin Empty with tow/haul off the TC doesn't feel like it locks up till 4th or 5th gear. The gear changes are seemless and RPM drops are in the 250RPM Range, the truck just glides along from 0 to 50 MPH. Much more gracefull and quieter than MY truck. But My Dad's D-Max is No Fun. Zero Personality. MY Cummins on the other hand..... heheh,, All smiles



Wow, I rambled on,, more posts like this and this thread could get L-O-N-G and pointless,, just like this post, LOL



Merrick Cummoings Jr
 
Rpm drop on Dmax

MCumings: You said that the rpm drop was 250-300; the DTT is 75-125 on 89% t/c. Doesn't that mean that the fluid coupling is more effeciant on the DTT.



Does anyone know the price of a rebuilt Allison?
 
I have a DTT 89%,none of the DTT convertors will lock under a heavy load,except the new race TC's. So the reason the rpm drop is only 75-125 rpm is because the TC wont allow lockup when the Engine speed,and input shaft speed difference is greater than 125 RPms's. If it would allow the lockup tp accur under heavy load i know i could get mine to drop 400 rpm's easy under heavy power,which is excellent considering my power level. Ive driven a few DMax-allisons,the DTt TC is much tighter than the allisons,but next to the stock Dodge unit the allson is great.
 
lockup?

Snow Man..... I have the vb and am considering the 89% tc. Can you define "under heavy load". I will be pulling my 30' TT and would like lockup at highway speeds unless of course climbing a mountain. My stock tc will stay locked no problem.



thanks Tom
 
I have a new "race style" 89% TC and it goes into third, then lockup, then OD. This happens even with 10,000 lbs of hay on a 6400 lb trailer. I also had the Cryo shaft on the input installed. Now when I shift out of OD I have to accelerate to get lockup back in third. I can go down the hwy at 65-75 in OD with no slowing for the hill.
 
:{ :{ :{ Thier machinist got behind; they couldn't do the trans because they have no covers to make the tc with until tuesday. I'll be going back in june, but the whole ATS gang will be there at MM to take people for rides etc. I'm out though.

Clint took my truck for a ride and couldn't believe how hot the transmission ran when he was hot-rodding it. He got back from a trip up the street and back, and the ATF temp was over 220 degrees. I told him that was par for the course when unlocked at full throttle. All ya'all that doubt the shifting locked to locked thing need to go for a ride on one of their trucks. I rode in Clints ford, and it kicks serious but while shifting locked to locked and doesn't feel like anything will ever break. The next month will be a long one. :{



The hospitality of those people is absolutely unmatched. Any beverage you want, it's yours, just grab it out of the fridge. They are the hardest working bunch I have ever seen, but they are also easy going and fun to be with. I am really looking forward to going back. Oo. :D
 
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