TH350 shift pints
Thread Starter
Melting Slicks
Joined: May 2005
Posts: 2,143
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From: San Diego California
TH350 shift pints
my trans shifts about at 4500rpm when wot (shirps the tires really nice) I have a adjustable modulator valve that raises the shift points and firms up the shift, but every time I try to raise the shift pints all it does is firm up the shifts, I wanted to raise the shift points up to like 5800rpm to get better times how do I raise the shift points? 
Thank You
Thank You
Thread Starter
Melting Slicks
Joined: May 2005
Posts: 2,143
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From: San Diego California
Originally Posted by big_G
Me thinks you need to mess with the govenor weights and springs next. 
thats going to take a days work, I'm going to wait untill I get to California to do this 
Melting Slicks
Joined: Jul 2002
Posts: 3,000
Likes: 22
From: Boulder Creek California
I've never used an adjustable modulator but it should be raising your shift points. I'm guessing you turn an allen screw in the vacuum port and it changes the tension on the spring inside. With that spring tighter, it should take greater force (e.g. greater RPMS) before it activates the hydraulic valve. Maybe your valve isn't working quite right? You can pull it out and clean it if you want (just use a magnet after you've pulled out the modulator diaphragm). 4500 sounds lower than mine shifted stock at WOT. Is the adjustment maxed out or is it getting too violent?
-Chris
-Chris
Thread Starter
Melting Slicks
Joined: May 2005
Posts: 2,143
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From: San Diego California
Originally Posted by LiveandLetDrive
Is the adjustment maxed out or is it getting too violent?
-Chris
-Chris
) the modulator is only a few months old
Pro
Joined: Sep 2004
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If I recall correctly, the vacuum modulator only controls shift points while cruising. You need to adjust the governor to change them at WOT.
Me, I'm too lazy to mess with the governor while it's so hot outside. I use the shifter when I want to go deep into the high revs.
Me, I'm too lazy to mess with the governor while it's so hot outside. I use the shifter when I want to go deep into the high revs.
Thread Starter
Melting Slicks
Joined: May 2005
Posts: 2,143
Likes: 0
From: San Diego California
I'm too lazy to mess with the governor while it's so hot outside
I was checking the instructions and its going to take time because I have to change springs and weights until I get the best combination for my vehicle
I use the shifter when I want to go deep into the high revs
