lock-up question
Thread Starter
Melting Slicks
Joined: Oct 2000
Posts: 3,010
Likes: 1
From: Sweden/Stockholm
lock-up question
how can tell if my tranny locks-up or not? I cant feel anny kind of "gear change" feeling you all talk about.. And when I change to OD mode, It just shift in to OD and drops RPM like it should, but i cant feel a "lock-up" here either..
Le Mans Master
Joined: Aug 2000
Posts: 5,192
Likes: 1
From: Airport Cruise-in 1 Veteran Airport Cruise-in 2 Veteran
Cruise-In II Veteran
Re: lock-up question (devilfish)
If you take off from a stop in OD you should feel 4 shifts. The lock up isn't as pronounced a shift as a regular gear shift so you should barely feel it.
Thread Starter
Melting Slicks
Joined: Oct 2000
Posts: 3,010
Likes: 1
From: Sweden/Stockholm
Re: lock-up question (War Machine)
so how should it "feel". I know that when shifting to OD, the tranny drops RPM. But should it drop in RPM once more when the lock up goes on? How does it work??
Safety Car
Joined: Feb 1999
Posts: 3,504
Likes: 4
From: Mexico Beach FL
Re: lock-up question (devilfish)
how can tell if my tranny locks-up or not? I cant feel anny kind of "gear change" feeling you all talk about.. And when I change to OD mode, It just shift in to OD and drops RPM like it should, but i cant feel a "lock-up" here either..
Tom Piper
[Modified by Tom Piper, 8:39 PM 2/28/2002]
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Race Director
Joined: Oct 1999
Posts: 13,298
Likes: 14
From: Somers NY
Re: lock-up question (devilfish)
Yes..
Try driving at a steady 60 mph in OD then note your tac... then give it the gas VERY lightly, (like you had an egg between your foot & the gas pedel) the rpm should not rev up quick, it should sort of lug, (just like a stick car)
Then give it the gas about 1/2 way, see if the tac jumps about 200 rpm..
Then if it does.. you know your converter WAS locked & unlocked when you gave it 1/2 gas..
This also should work in D, but for it to lock, your speed MUST be over app 45 mph.. (55 to be safe)
Try driving at a steady 60 mph in OD then note your tac... then give it the gas VERY lightly, (like you had an egg between your foot & the gas pedel) the rpm should not rev up quick, it should sort of lug, (just like a stick car)
Then give it the gas about 1/2 way, see if the tac jumps about 200 rpm..
Then if it does.. you know your converter WAS locked & unlocked when you gave it 1/2 gas..
This also should work in D, but for it to lock, your speed MUST be over app 45 mph.. (55 to be safe)
Thread Starter
Melting Slicks
Joined: Oct 2000
Posts: 3,010
Likes: 1
From: Sweden/Stockholm
Re: lock-up question (Red96Coupe)
.. I tried to give gas at 60mph in OD. The tac jump around 150rpm and then start pulling. SO I gues it whas in lock up mode.
BUT it feels like the tranny goes in lock up mode at once when i put in OD. Should it not wait a wile before it lock ups in OD?
Regards
BUT it feels like the tranny goes in lock up mode at once when i put in OD. Should it not wait a wile before it lock ups in OD?
Regards
Le Mans Master
Joined: Aug 2000
Posts: 5,192
Likes: 1
From: Airport Cruise-in 1 Veteran Airport Cruise-in 2 Veteran
Cruise-In II Veteran
Re: lock-up question (devilfish)
If you are in D and then shift to OD it will depend on what your speed is and how much of the throttle you have down. From what you describe it sounds normal to me.
Le Mans Master
Joined: Jul 1999
Posts: 7,072
Likes: 4
From: Maryland
Re: lock-up question (devilfish)
OK, call it a blonde day or sleep deprivation or something, but I'm confused. Are they supposed to lock up or are they not supposed to lock up? What does it do or prevent? :confused:
Team Owner
Joined: Nov 1999
Posts: 32,782
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From: Former NCM Drag Racing coordinator, National director Corvette Challenge Spring Hill, Tennessee: Whiting, New Jersey
Cruise-In VI Veteran
Cruise-In VII Veteran
Re: lock-up question (devilfish)
I thought It will only lock in OD.
Is this not true?????????????????????
Is this not true?????????????????????
Race Director
Joined: Oct 1999
Posts: 13,298
Likes: 14
From: Somers NY
Re: lock-up question (mackeyred96)
I thought It will only lock in OD.
Is this not true?????????????????????
Is this not true?????????????????????
NO! My car will lock up at 46 mph no matter if I'm in D or OD.. however I must be steady on the gas, if I try to accelerate it will unlock..
If I am floored it will go from 1st to 2nd, then to 3rd & never lock, I never kept it floored long enough for it to shift to OD while the gas is floored..
I have read that our transmissions WILL lock up in 2, 3 (D) or 4th (od) however mine has never locked in 2nd I've had it lock in D if I am cruising at 50+ mph... but with your converter it is easy to tell if your converter is locked or not..
Just put it in OD take it to 60 mph & just let off the gas..if it is LOCKED, the RPM SHOULD NOT DROP... but as soon as you "tap" the break, you should see your rpm drop 500 rpm.. because of your high stall converter, whereas a car with a stock converter the RPM will only drop 150 rpm because there is not much slippage in the stock converter..
[Modified by Red96Coupe, 10:05 PM 3/1/2002]