Need 700r4 to shift higher
Thread Starter
Member
Joined: Nov 2008
Posts: 134
Likes: 1
From: MICHIGAN
Car: 88 IROC
Engine: 305TPI
Transmission: T-5
Axle/Gears: 3.42
Need 700r4 to shift higher
put my new engine in and it shifts way to early for the cam under WOT. I'm looking for 5,800 to 6,100 shift points for this 700R4 instead of the 4,900-5,100 that I'm at currently. What works the best? I'm sure I'm not the first to do this. What weight spring combo for the governor have you used to achieve this? 3.23 posi with a relatively low convertor(2200)
Thread Starter
Member
Joined: Nov 2008
Posts: 134
Likes: 1
From: MICHIGAN
Car: 88 IROC
Engine: 305TPI
Transmission: T-5
Axle/Gears: 3.42
Re: Need 700r4 to shift higher
Nobody have anything to say? I'm not looking for "Search" as a response. Between working full-time, school full-time I have very little time to research.
Member
Joined: Mar 2012
Posts: 185
Likes: 0
From: Murphy, NC
Car: 83 Z28/L69
Engine: L69 305H.O.
Transmission: 6spd T56
Axle/Gears: 4.10 LS 4th Gen
Member

Joined: Dec 2007
Posts: 475
Likes: 3
From: Minnesota
Car: '88 Iroc
Engine: Single turbo Vortec 5.7, Megasquirt
Transmission: Probuilt 700r4 3000 stall Vigilante
Axle/Gears: Moser 9" 3.25 w/True Trac
Re: Need 700r4 to shift higher
It's more of a trial and error deal when changing springs and weights. I do recall having to make fairly drastic changes in the governor to make decent rpm increments.
Joined: Jul 2000
Posts: 6,521
Likes: 91
From: Aridzona
Car: `86 SS / `87 SS
Engine: L69 w/ TPI on top / 305 4bbl
Transmission: `95 T56 \ `88 200-4R
Re: Need 700r4 to shift higher
Sorry but with TPI, you won't benefit raising them that much, if at all. Don't blame the power band on the trans.
Thread Starter
Member
Joined: Nov 2008
Posts: 134
Likes: 1
From: MICHIGAN
Car: 88 IROC
Engine: 305TPI
Transmission: T-5
Axle/Gears: 3.42
Joined: Aug 2005
Posts: 285
Likes: 1
From: baldwin city, ks
Car: 84 454 monte, 89 formula, 86 camaro
Engine: the bigger the better
Transmission: 700/4L60 in everything
Axle/Gears: wish they were all 4.10's or better
Re: Need 700r4 to shift higher
clip one coil at a time off of each of the springs that are already in your governor and try that.
Last edited by greggbruce; Oct 25, 2014 at 09:34 AM.
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Re: Need 700r4 to shift higher
The best way to do this is to get a HI-RPM Corvette valve body and the matching governor. They have apx. a 6,000 rpm WOT shift point. The higher horsepower Z28 valve body and matching governor setup has apx. 5,500 rpm WOT shift point. The other option is to install the TransGo 700-2-3 Performance Shift kit, it will give you the ability to hold any gear to any rpm when manually shifting it.
Re: Need 700r4 to shift higher
put my new engine in and it shifts way to early for the cam under WOT. I'm looking for 5,800 to 6,100 shift points for this 700R4 instead of the 4,900-5,100 that I'm at currently. What works the best? I'm sure I'm not the first to do this. What weight spring combo for the governor have you used to achieve this? 3.23 posi with a relatively low convertor(2200)
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