200-4R Trans owners
Le Mans Master
Joined: Mar 2002
Posts: 7,456
Likes: 2
From: Coming home from Luckenbach Texas
Re: 200-4R Trans owners (Pat71vette)
Pat, congratulations on your ebay discovery! :cheers:
427V8, I don't have vibration problems in lockup at low rpms, but it's awfully hard on the driveline to be lugging along like that! I've been told to lock out overdrive while driving around town, and it's turned out to be darn good advice!
427V8, I don't have vibration problems in lockup at low rpms, but it's awfully hard on the driveline to be lugging along like that! I've been told to lock out overdrive while driving around town, and it's turned out to be darn good advice!
Thread Starter
Drifting
Joined: Aug 2000
Posts: 1,805
Likes: 36
From: Annapolis MD
Re: 200-4R Trans owners (page62)
I've been told that for high HP cars it's better to not get a lockup trans/converter. I haven't explored it in detail with them, but will get more info before I order my trans. For now my $50 mock-up trans is holding the space open :lol:.
-Greg
-Greg
C6 the C5 of tomorrow
Joined: Nov 2000
Posts: 6,665
Likes: 2
From: Twin Cities Minnesota
Re: 200-4R Trans owners (GregP)
I've heard that too about lockup converters and it's usually from some drag race only kinda guy.
If you're going to be freeway driving the car you will want a lockup. I've heard that the transmission wear quickly without the lockup in fourth.
And besides, when you're racing the converter isn't locked. It's only locked on the freway...
This is uaually directed at the 700 but the 200 may suffer the same problem.
If you're going to be freeway driving the car you will want a lockup. I've heard that the transmission wear quickly without the lockup in fourth.
And besides, when you're racing the converter isn't locked. It's only locked on the freway...
This is uaually directed at the 700 but the 200 may suffer the same problem.
Le Mans Master
Joined: Mar 2002
Posts: 7,456
Likes: 2
From: Coming home from Luckenbach Texas
Re: 200-4R Trans owners (427V8)
You'll kill the tranny very quickly without a lockup converter. And if you're a drag racer, you can install a lockup lockout switch. By the way, lockup only occurs in 4th.
Thread Starter
Drifting
Joined: Aug 2000
Posts: 1,805
Likes: 36
From: Annapolis MD
Re: 200-4R Trans owners (page62)
Not to argue but ... I don't think the trans cares if the converter is locked or not. All it sees is an input shaft RPM and torque. If not locked the converter slips, the same as for a non-locking converter. If you can remove the extra heat from the slip, all you see is a little less road speed and fuel milage.
It's possible that a locking converter may not like being run unlocked (although it is in the lower gears. If you run a locking trans and don't lock the converter it may change the oil flow patterns, since what ever pressure stream is used to lock the converter won't be flowing to the lock-up clutch. You can't run a non-locking converter with a locking trans as again the oil stream used to lock the clutch has no place to go, the trans must be setup to match the non-locking converter.
-Greg
It's possible that a locking converter may not like being run unlocked (although it is in the lower gears. If you run a locking trans and don't lock the converter it may change the oil flow patterns, since what ever pressure stream is used to lock the converter won't be flowing to the lock-up clutch. You can't run a non-locking converter with a locking trans as again the oil stream used to lock the clutch has no place to go, the trans must be setup to match the non-locking converter.
-Greg
Thread Starter
Drifting
Joined: Aug 2000
Posts: 1,805
Likes: 36
From: Annapolis MD
Re: 200-4R Trans owners (GregP)
I went over to ping the T-buick guys about lock-up or not. Here's the link if anyone else is interested.
http://www.turbobuick.com/forums/sho...threadid=58377
-Greg
http://www.turbobuick.com/forums/sho...threadid=58377
-Greg
Le Mans Master
Joined: Mar 2002
Posts: 7,456
Likes: 2
From: Coming home from Luckenbach Texas
Re: 200-4R Trans owners (GregP)
Hmmm, it looks like lockup vs. non-lockup is a very sticky subject :boxing -- not to mention what stall speed converter you might want to choose.
One lesson from that forum: if you choose non-lockup, be sure to have a heavy-duty aux. cooler on there!
One lesson from that forum: if you choose non-lockup, be sure to have a heavy-duty aux. cooler on there!
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Le Mans Master
Joined: Mar 2002
Posts: 7,456
Likes: 2
From: Coming home from Luckenbach Texas
Re: 200-4R Trans owners (427V8)
Talk to Art Carr, and talk to Steve Holmes at Bowtie Overdrives. You may not come away any less confused, but you'll definitely be more educated! :D
