Is a 700R4 good for drag racing?

Racing with a stock 700R4 while in overdrive risks the integrity of the O/D band and limits your performance in a drag race, and can ruin the transmission. But a custom built 700R4 is made of sterner stuff, and reduces the lag time introduced by sloppy and sluggish shifts.

What is a 700R4 good for?

The 700R4 transmission is an automatic transmission that was found in GMC and Chevrolet cars and trucks. It was developed with the aim of improving fuel economy in cars, and it achieved this goal thanks to the overdrive it featured.

How much power can a 700R4 take?

I've read a stock 700r4 can handle 350 lb-ft of torque. But some were rated higher depending on it's application. 1989 was not a high horsepower maybe 230 or torque motor if I recall correctly. You could just have that trans freshened up to handle new motor.

Which is better 4L60E or 700R4?

700R4: The Good And The Bad. Shifting over to the 4L60E side, the main advantage of this transmission is that electronics eliminate the need for a TV cable and that whirling dervish of weights and springs to establish shift control.

What year 700R4 is best?

Generally, 1987 and up TH700R4s or 1990-'93 4L60 units are the most desirable.

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Is a 700R4 better than a TH400?

The 700R4 is an improved and upgraded model compared to its predecessors-TH350 and TH400. The GM THM700R4 is a 4-speed automatic-shift overdrive transmission installed longitudinally (front to back) over vehicle chasses. The 700R4's performance is comparable to the GM 200-4R but sports a lengthier transmission.

Does a 700R4 need a computer?

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. Not just a simple kickdown cable like your TH350 analogue, the TV cable controls line pressure and shift points.

Can you use a 700R4 with a LS motor?

Yes, a 700R4 will bolt up. 1 bolt hole will not be used. Also, you will need a small adaptor that fits into the crank for the nose of the torque convertor.

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.

Can a 700r4 handle 1000hp?

The newest version of the Super StreetFigher GM 700R4 Transmission includes all of the features of the original, as well as the ability to handle 1000+ horsepower. It is also updated with a new 300M input shaft to allow for much greater torque capacity.

What transmission can handle 1000 HP?

The PerformaBuilt Hydramatic 400 Racing Transmission is a mega-performance transmission capable of +1000 RWHP.

At what speed does a 700R4 shift?

We will say that, when properly adjusted, the First-to-Second shift should occur at 15-20 mph; Second-to-Third shift at 25-30 mph; and Third-to-Fourth shift at 40-45 mph.

How can I improve my 700R4 transmission?

What year did 700R4 go electronic?

In 1991~ the 700r4 transmission was replaced by the popular transmission 4L60. The transmission then became electronically controlled instead of the TV cable, with some other changes that I will go through further down in the article.

Is a Chevy 5.3 a LS engine?

The cheapest of the LS engine family is the 5.3L truck engine since it came in most of the trucks and SUVs that Chevrolet has produced.

Can you Carburate a LS motor?

Carb Conversion. Converting an LS engine to a carburetor is actually pretty easy. Unbolt the factory intake, bolt on an intake like this Edelbrock Performer RPM and a Holley 3310 vacuum secondary carburetor and you're halfway there. This will also require ignition control.

How do I know if my 700R4 is locked up?

12 volts is applied to a solenoid valve in the transmission when in 4th gear determined by a 4th gear pressure switch in the transmission. You can tell if it is in lock up by watching the tach when you accelerate or decelerate in 4th gear. If it's not in lock up, the tack will move up or down rapidly.

How much HP can a Turbo 400 handle?

About 400-450 HP/TQ is the limit on the stock TH400. With ONE almost free modification and some minor valve body calibration changes, 800 HP on an otherwise stock TH400 is not a problem if it's assembled well (good endplay, etc), and the 34 element sprag is a wise addition above 450 HP or any drag usage.