got the converter today, trans is en route.
andy
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| Wilcap Slant Six to 200R4 https://slantsix.org/forum/viewtopic.php?t=49595 |
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| Author: | akbmotorsports [ Fri Jul 19, 2013 11:54 am ] |
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agreed, lockup in second may be useful for low speed towing to keep temp down, otherwise not much point in it. lockup in third should be great for the 40-60 mph range. andy. |
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| Author: | DynoDave [ Sat Jul 20, 2013 4:44 am ] |
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Quote: lockup in 3-4. bowtie overdrives is 2-3-4 and monster trans is 4 only. yes, 9.5 lockup.
Sorry to ask this guys, but I'm trying to keep up here....So are you saying that with the factory GM 200-4R, that they offered torque converter lockup in 2nd, 3rd, and 4th gears?If so, how was that done? This is a little early for an sort of sophisticated electronic controls. |
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| Author: | Dart270 [ Sat Jul 20, 2013 8:19 am ] |
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I would guess factory was lockup in only 4th, but I don't know. My wife's 2001 Saturn SL1 locks up in 2-3-4, but the trans is a mass of computer control, and does not always perform properly. Lou |
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| Author: | DynoDave [ Tue Jul 30, 2013 5:01 pm ] |
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Quote: I would guess factory was lockup in only 4th, but I don't know. My wife's 2001 Saturn SL1 locks up in 2-3-4, but the trans is a mass of computer control, and does not always perform properly.
Yeah, that Saturn trans. is what I thought of when I first read that. I borrowed my mother-in-laws S series for a run to Charlotte many years ago. When I first encountered the extra "gears" and was watching the tach, I was a little concerned until I figured out what was going on. With that nice little EFI OHC engine, it made a nice little package, I thought.
Lou |
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| Author: | sandy in BC [ Tue Jul 30, 2013 7:21 pm ] |
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dunno about the 200 4Rs.....but 4l60 and 4l60e and 4l80e all have lockup in 3rd and 4th |
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| Author: | akbmotorsports [ Wed Jul 31, 2013 6:48 pm ] |
| Post subject: | factory control |
hello. found this on one of the buick forums. In the factory 200r4 setup the lockup comes on under high vacuum situations in all gears except 1st. When the brakes are engaged it opens the ground loop and the lockup turns off. The same thing happens when the engine vacuum goes down when you floor it, it also shuts off. andy. |
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| Author: | Dart270 [ Thu Aug 01, 2013 3:44 am ] |
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Cool. On some newer autos, and even in racing, some folks rig them to LU under full throttle too. Apparently the new TC LU linings can take this abuse. Nice to hear there is a ground interrupt circuit to disable LU (I like manual options) and a vacuum operated circuit. Thanks much, Lou |
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| Author: | akbmotorsports [ Wed Aug 07, 2013 6:13 pm ] |
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got the converter today, trans is en route. andy |
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| Author: | DynoDave [ Thu Aug 08, 2013 5:28 pm ] |
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Quote: got the converter today, trans is en route.
Sweet! andy So, if you don't mind...educate me again here, please.  The converter (A) is a stock item? Or a custom piece with approx. what stall? And this would have to be a GM piece, so the "snout" can mate to the pump in the 200, right? These are the original GM mounting locations (B) for the flywheel? This ring is what has been added (C), to adapt to the slant six flywheel? Looks like two of the mounting locations lined up, clock-wise, though not in diameter, new to old? (not important really, just curious). Also, this ring adds depth...that is a needed feature when adapting the two together? Just trying to put this all together in my head.... |
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| Author: | akbmotorsports [ Sat Aug 10, 2013 1:12 pm ] |
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hello. trans arrived thursday. hello dave, i am no expert and will probably have more questions than answers along the way, but will do my best. A. custom converter, invoiced as "street-strip". lonnie at extreme was given the details of my truck, and how i intend to drive it. should stall around 2200ish. B. the ring is mounted at this point, but the stock gm converter/flex plate bolt pattern is on the 3 "ears" on the ring. C. i am assuming the depth of this smaller 9.5 inch converter plus the ring is the same depth as the stock 12 inch converter. and with the bolt on ring the maker can use the same converter for varied applications. the trans has a simple one wire connection for lock up. 12v energize lock up on, de-energize lock up off. anything from a simple toggle switch to more complex control systems can be used for lock up control. B+M has a kit that uses the speedometer to control by speed, and others use the vacuum/brake switch setup.  more to come, andy 
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| Author: | Sam Powell [ Sun Nov 03, 2013 5:08 am ] |
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Tons of interesting and informative information here. Thanks for the tip on what words to use for the search Lou. The long list of decisions and choices is somewhat intimidating at this point. I will really have to think this one through. Of course the money is no small thing, but it all seems appealing on one level. I imagine the car will be off the road for awhile after I get the parts assembled, which could take awhile for monetary reasons. I will stay tuned to progress from others. Sam |
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