TH400 shift question
Thread Starter
Burning Brakes
Joined: Sep 2000
Posts: 922
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From: Maine
TH400 shift question
I need some advice on how to improve a shifting characteristic. My car shifts great at light to medium throttle, kicks-down OK at part or full throttle (after I fixed the switch) but doesn't shift well at higher revs/heavier throttle. If you boot it then lift off the throttle at (ex.) 4500 rpm it'll hang there, just revving, for about 2 seconds before it'll upshift. I'd appreciate thoughts on how to improve this. Modulator? Governor?
TIA
TIA
Thread Starter
Burning Brakes
Joined: Sep 2000
Posts: 922
Likes: 0
From: Maine
I just noticed that the modulator (I think that's what it's called - hung off the right side of the tranny) has an adjustment screw sticking out of the middle of it. Does anyone know if this is OEM or aftermarket? Looks like it was painted blue at one time.
Drifting
Joined: Aug 2002
Posts: 1,731
Likes: 22
From: Marietta Ga.
Thread Starter
Burning Brakes
Joined: Sep 2000
Posts: 922
Likes: 0
From: Maine
thanks, I'd already checked those 
The article about changing governor weights/springs to fine-tune upshift speeds is interesting but I don't know if this is where my problem is. I think that Matt Gruber also wrote another article a while ago but I can't seem to find it anywhere. Now that I think about it, he might have a website and I guess I'll look there.
The article about changing governor weights/springs to fine-tune upshift speeds is interesting but I don't know if this is where my problem is. I think that Matt Gruber also wrote another article a while ago but I can't seem to find it anywhere. Now that I think about it, he might have a website and I guess I'll look there.
