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Mustang Forums
2011-2014 Mustangs
Driveline/Suspension
4r70w questions/issues
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<blockquote data-quote="nyuk98GT" data-source="post: 16229286" data-attributes="member: 166799"><p>03blkann, </p><p></p><p>Ah, OK, manual valve body - you did mention that early in your post but my brain apparently missed that fact. <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite10" alt=":oops:" title="Oops! :oops:" loading="lazy" data-shortname=":oops:" /></p><p>So, in a manual vb, are the shift solenoids still used or are they replaced with hydraulic valves? (Maybe I should just use "The Google".) What about locking/unlocking the converter? It's possible to get a little flare during the locking process so that is something to discuss with your transmission guru. If you tell me that you run an open converter, I am just going to shut up and stop cluttering your thread. </p><p></p><p>What does your t-guru say about the J-mod for late model 4R70Ws? Does Lentech mention (or advertise) modifying the vb separator plate (using their own orifice sizing secrets for the 4R70W)? I was so impressed with how quick but not harsh the shifts became when I finished up the J-mod, I remain a big fan. </p><p></p><p>If you can, datalog the trans fluid temperature (along with the shift parameters (RPM, slip, TP, etc.). Heat is baaad [/George H.W. Bush voice] for the automatic. The data will confirm whether a cooler is needed (I think it will be just because of the higher stall converter). And your trans guru will probably "see" what is going on with the WOT shifts. </p><p></p><p>Anyway, I hope you get the chatter/flare thing sorted out. A well-behaved auto is a beautiful thing. </p><p></p><p>Chris</p></blockquote><p></p>
[QUOTE="nyuk98GT, post: 16229286, member: 166799"] 03blkann, Ah, OK, manual valve body - you did mention that early in your post but my brain apparently missed that fact. :oops: So, in a manual vb, are the shift solenoids still used or are they replaced with hydraulic valves? (Maybe I should just use "The Google".) What about locking/unlocking the converter? It's possible to get a little flare during the locking process so that is something to discuss with your transmission guru. If you tell me that you run an open converter, I am just going to shut up and stop cluttering your thread. What does your t-guru say about the J-mod for late model 4R70Ws? Does Lentech mention (or advertise) modifying the vb separator plate (using their own orifice sizing secrets for the 4R70W)? I was so impressed with how quick but not harsh the shifts became when I finished up the J-mod, I remain a big fan. If you can, datalog the trans fluid temperature (along with the shift parameters (RPM, slip, TP, etc.). Heat is baaad [/George H.W. Bush voice] for the automatic. The data will confirm whether a cooler is needed (I think it will be just because of the higher stall converter). And your trans guru will probably "see" what is going on with the WOT shifts. Anyway, I hope you get the chatter/flare thing sorted out. A well-behaved auto is a beautiful thing. Chris [/QUOTE]
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