Normal downshift at full throttle?
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Junior Member
Joined: May 2004
Posts: 32
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Car: 1985 IROC-Z Z/28
Engine: Brand new GM 350
Transmission: Stock (for now)
Normal downshift at full throttle?
If I floor my car at highway speeds like 60+ it'll pull fairly hard for a bit but then it'll just keep creeping along at high RPMs in 3rd gear and only when I let off the pedal will it shift and kick forward.
However that shift feels more like the car was being held back than just a regular gear change. It's hard to describe, It kind of lurches forward smoothly but if I floor it again it'll down shift into 3rd and try to climb in 3rd which is at redline.
Maybe this is normal OverDrive crap but I have no idea.
Lemme know what you think.
It's a new TPI 350 Crate with a newly rebuilt 700r4.
However that shift feels more like the car was being held back than just a regular gear change. It's hard to describe, It kind of lurches forward smoothly but if I floor it again it'll down shift into 3rd and try to climb in 3rd which is at redline.
Maybe this is normal OverDrive crap but I have no idea.
Lemme know what you think.
It's a new TPI 350 Crate with a newly rebuilt 700r4.
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Joined: Jan 2000
Posts: 20,981
Likes: 11
From: Mercedes Norte, Heredia, Costa Rica
Car: 1984 Z28 Hardtop
Engine: 383 Carb
Transmission: 4L60
Axle/Gears: 3.54 Dana 44
Perfectly normal, a stock 700R4 won't shift into O/D at WOT. You can modify the transmission to do it if you want.
Moderator
Joined: Jan 2000
Posts: 20,981
Likes: 11
From: Mercedes Norte, Heredia, Costa Rica
Car: 1984 Z28 Hardtop
Engine: 383 Carb
Transmission: 4L60
Axle/Gears: 3.54 Dana 44
Not a shift kit, but you can modify the TV sleeve. Do a search for a post by Pro Built Automatics.
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