Contents
Can you run a 700R4 without a computer?
There are no TV cable, mechanical speedometer drive, or governor provisions. To run a 700-R4 trans behind a carbureted engine without a computer, at the very least the TV cable must be hooked up to the carburetor and properly adjusted.
What does a 700R4 lockup kit do?
The 700R4 External Lock-up Kit This kit will enable the driver to control the operation of the torque converter Lock-up. The switch will allow driver to turn the lock-up function off during in-town driving and on during high speed/highway driving.
What happens when torque converter locks up?
The big difference is the clutch assembly. This clutch acts just like a clutch disc in a manual transmission application. When the converter is “locked up” this clutch is forced against the front of the converter creating a direct drive from engine to transmission.
Will a 700R4 bolt up to a 350?
Yes, they bolt right in. Better if your th350 is a longtail (truck) tranny. That way you wont need another driveshaft.
Does a 700R4 have a lockup converter?
The GM 700-R4 & 200-4R transmissions utilize a lock up converter to help create a more efficient transmission. When GM installed these transmissions in a particular vehicle they had a few different ways to activate the lock up for the converter.
What does a lockup torque converter do?
Lockup torque converters are a type of converter that has a clutch. The engagement of this clutch causes the engine to lock to the transmission input shaft thereby leading to a direct 1:1 drive ratio.
What does a torque converter lockup solenoid do?
Torque converter lock-up is engaged through a solenoid mounted inside the transmission. When the solenoid is energized it redirects the fluid flow back through the input shaft to put pressure against the clutch assembly allowing it to engage with the front of the torque converter.
Is the 700R4 a good transmission?
Its lower first gear ratio provides excellent performance for low vehicle speeds. Besides, a 30% overdrive brings about enhanced fuel economy, a reason that can also be attributed to the popularity of the 700R4. The torque that can be handled by a 700R4 transmission varies depending on its production year.
How does a 700R4 torque converter lockup?
Jeff Smith: The most popular way to convert a 2004R or 700R4 to lockup is to do so when the transmission shifts into 4th / overdrive. The kits add a pressure switch inside the transmission that enables the torque converter clutch to engage when the transmission shifts into fourth. Click to see full answer
Is the 4th gear clutch locked on a 700R4?
The 4th gear clutch in a TH700r4 gets some of it’s lube from the torque converter lock-up oil circuit. If you don’t use a kit to make sure that the converter is locked when the trans hits 4th gear you’ll burn the cluth out eventually!
How does a lock up torque converter work?
A plain vanilla torque converter never fully locks up. Stall is really about 95% or so “locked up”. With lock-up converters, there is a friction disk inside the converter. A hydraulic valve (acutated by a solenoid) reverses oil flow through the converter causing the disk to apply and lock up 100%.
When does lock up converter disengage on Camaro 700R4?
Lock up converters generally engage once the transmission has shifted into 3rd or 4th gear. The disengage when you force a downshift and when you apply the brake (to prevent engine stalling). As far as the “locked kits” all I can figure is this.