01-19-2017, 11:12 AM | #1 |
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VSS with a TH350...
OK, I am putting in a LM7 into my truck, but I am using a TH350 for the trans since I had one sitting ready to go.
I have heard that I need to have a VSS signal that goes to the PCM to help avoid stalling the engine under hard breaking conditions. Since the TH350 has no provision for a VSS sensor, HOW DO I get that signal to the PCM? OR - Do I really NEED that signal to the PCM?
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Karl 1965 Chevy Stepside(Grandpa's Old Blue) and (July 2015 Shop Build!)(2020, the Saga Continues) http://67-72chevytrucks.com/vboard/s...d.php?t=372424 The LST Challenge: http://67-72chevytrucks.com/vboard/s...=1#post7812257 Korbin's 1st Square: "Sunburn" http://67-72chevytrucks.com/vboard/s...d.php?t=418618 1985 GMC Sierra: "White Trash", Korbin's 2nd now... http://67-72chevytrucks.com/vboard/s...d.php?t=632305 Henry - 1984 Chevrolet, Owen's 1st Square |
01-19-2017, 11:49 AM | #2 | |
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Re: VSS with a TH350...
Quote:
Let me know.
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01-19-2017, 02:13 PM | #3 |
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Re: VSS with a TH350...
Thanks Rob. I really wanted to run the stock mechanical speedo too. Let me looking that and I will get back to you. Your part looks like a good deal if I skip the stock speedo.
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Karl 1965 Chevy Stepside(Grandpa's Old Blue) and (July 2015 Shop Build!)(2020, the Saga Continues) http://67-72chevytrucks.com/vboard/s...d.php?t=372424 The LST Challenge: http://67-72chevytrucks.com/vboard/s...=1#post7812257 Korbin's 1st Square: "Sunburn" http://67-72chevytrucks.com/vboard/s...d.php?t=418618 1985 GMC Sierra: "White Trash", Korbin's 2nd now... http://67-72chevytrucks.com/vboard/s...d.php?t=632305 Henry - 1984 Chevrolet, Owen's 1st Square |
01-19-2017, 03:24 PM | #4 |
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Re: VSS with a TH350...
No worries. LMK.
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Rob - https://www.instagram.com/hart_rod_c10 As Iron Sharpens Iron, So One Man Sharpens Another. Proverbs 27:17 FOR SALE: DBW pedal bracket - http://67-72chevytrucks.com/vboard/s...d.php?t=651123 FOR SALE: Hood Brackets http://67-72chevytrucks.com/vboard/s...d.php?t=679945 1987 Silverado SWB - 34.5K original miles http://67-72chevytrucks.com/vboard/s...d.php?t=801834 1969 SuperBurb - http://67-72chevytrucks.com/vboard/s...d.php?t=200387 1968 Farm truck - http://67-72chevytrucks.com/vboard/s...d.php?t=358692 1968 SWB - http://67-72chevytrucks.com/vboard/s...d.php?t=551258 1948 Chevy - http://67-72chevytrucks.com/vboard/s...=122164&page=3 |
01-23-2017, 11:08 AM | #5 |
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Re: VSS with a TH350...
I'm running mine without the VSS on a TH350. I turned off engine braking in the tune, so no worries with it.
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01-24-2017, 11:15 AM | #6 |
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Re: VSS with a TH350...
Thanks for the input. I have heard that I can do that, but just not sure what I want to do just yet.
Look like Dakota Digital has a 8k per mile pulse generator that is a pass thru that will let me keep my stock speedo. Seems to be cost effective at under $50.
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Karl 1965 Chevy Stepside(Grandpa's Old Blue) and (July 2015 Shop Build!)(2020, the Saga Continues) http://67-72chevytrucks.com/vboard/s...d.php?t=372424 The LST Challenge: http://67-72chevytrucks.com/vboard/s...=1#post7812257 Korbin's 1st Square: "Sunburn" http://67-72chevytrucks.com/vboard/s...d.php?t=418618 1985 GMC Sierra: "White Trash", Korbin's 2nd now... http://67-72chevytrucks.com/vboard/s...d.php?t=632305 Henry - 1984 Chevrolet, Owen's 1st Square |
01-25-2017, 11:54 AM | #7 |
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Re: VSS with a TH350...
jagsthatrun has this kit, pricey tho for what it is.
http://www.jagsthatrun.com/Pages/Par...ctor-Diff.html I believe the 8k pulse pass thru sender works as well. I am actually not running a VSS at this time, I don't have stalling issues but decel is not as smooth has it could be. But I am running an SM465 manual, not sure how well that will work with an automatic. |
01-25-2017, 12:36 PM | #8 |
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Re: VSS with a TH350...
I think that in the tune you can adjust the tune to accept 8000k . That dakota digital piece should work for you.
Who is programing your pcm ?
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01-25-2017, 12:48 PM | #9 |
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Re: VSS with a TH350...
I have spoken to the tuner, he can program the VSS to accept the 8k pulse signal. For this swap I am just going to have Brent at lt1swap.com do the vats delete and turn the codes off for the trans when I get it done.
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Karl 1965 Chevy Stepside(Grandpa's Old Blue) and (July 2015 Shop Build!)(2020, the Saga Continues) http://67-72chevytrucks.com/vboard/s...d.php?t=372424 The LST Challenge: http://67-72chevytrucks.com/vboard/s...=1#post7812257 Korbin's 1st Square: "Sunburn" http://67-72chevytrucks.com/vboard/s...d.php?t=418618 1985 GMC Sierra: "White Trash", Korbin's 2nd now... http://67-72chevytrucks.com/vboard/s...d.php?t=632305 Henry - 1984 Chevrolet, Owen's 1st Square |
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