What was the transmission on the Chevy Corvette C4?

GM tried to cover this by adding a new transmission known as the Doug Nash 4+3. But it was as weird as the name suggests, and it nearly ruined the car for the first six years. The Doug Nash 4+3 was a four-speed manual with an automatic overdrive on the top three gears.

What was the first year the C4 Corvette was made?

Keeping the 4+3 transmission right where it was with upgraded internals to improve its quality, by 1987 GM also gave its V8 roller hydraulic lifters for 245 horsepower, only to continue with a revised suspension system for 1988. All these small improvements led to the 1989 Corvette, the first C4 truly worthy of its badge.

How much horsepower does a Chevy Corvette have?

Still, with some experience regarding three pedals, the 245 horsepower “tuned port injection” L98-engined Corvette could finally deliver the driving experience Corvette buyers were looking for.

What kind of engine did the 1994 Corvette have?

The 1994 Corvette reflects this tradition of leadership. New to this model was the most advanced version of the 5.7 Liter V8, the 300-hp LT1 featuring new Sequential-Port Fuel Injection.

Is the 1994 Corvette a world class car?

By any objective standard of performance, the 1994 Corvette is world-class. First impressions do count, and the 1994 Corvette’s optional sport bucket-seat interior gives a reason to fall in love with America’s sports car all over again.

What kind of seats does a 1994 Corvette have?

First impressions do count, and the 1994 Corvette’s optional sport bucket-seat interior gives a reason to fall in love with America’s sports car all over again. The striking, dramatic style of this option is easy to see, and it’s the level of comfort that made it a favorite interior among Corvette drivers.

What kind of ABS does a 1994 Corvette have?

Bosch ABS IIU – This Bosch ABS is one of the most advanced four-wheel anti-lock braking systems available, and it is standard in every 1994 Corvette. ABS reduces the chance of wheel lockup during braking and is designed to help you maintain steering control even in a panic stop in rain, on snow, or on ice.

What’s the 4 speed manual on a corvette?

The “Doug Nash 4+3,” a four-speed manual on the Chevrolet Corvette with push-button overdrive in the top three gears, is considered by many to be one of those bits of questionable equipment. But it’s still fascinating. Photo: vette333! ( Ebay)

Why was there no overdrive on the 4th generation Corvette?

Chevrolet was working on such a tight deadline for the fourth generation Corvette that there was no time to develop a new unit specifically for the Corvette. Delco Electronics solved the computer problems and made sure that the manual section and the overdrive were truly integrated units.

How many gears does a dual transmission Corvette have?

Thanks to the EPA the Corvette was a 150 mile per hour car. The electronics necessary to create this dual transmission weren’t all that complicated but it did make for some interesting driving. There are really three unique, and different, algorithms programmed into the overdrive ECM, one each for second, third and fourth gears.

What’s the procedure for changing on the 85 corvette 4 + 3?

On the 85 Corvette 4+3. What’s the procedure for changing On the 85 Corvette 4+3. What’s the procedure for changing the fluids on the tranny and overdrive?

What kind of transmission does a 1985 Corvette have?

I have a 1985 corvette with a standard shift transmission that shifts fine until after driving it for a half hour the shifting starts locking up. Does it need … read more Shop Owner Master Techni…

What kind of trans does a corvette 4 + 3 have?

1985 Coupe-L98/Auto,Bright Red/Carmine. 1974 Coupe-L48/4speed, Medium Red Metallic/Black Deluxe. The 4+3 is a standard transmission (4 speed) with a two speed (direct drive & overdrive) trans bolted to the rear of it.

Is there a 4 + 3 overdrive in a corvette?

This transmission incorporates a Super T10 4 speed with an automatic overdrive. The overdrive can come on in second, third, and fourth gears…. thus 4 + 3! It is only used in Corvettes made in 1984 to 1988 and is not recommended to be swapped into street rod applications.

What kind of transmission did the 84 Corvette have?

The unit was designed/built by Doug Nash Transmission for the ’84-’88 Corvette. It was a decent idea, and did work well to reduce the emissions, and allow the car to pass the Federal EPA fuel mileage, and emissions requirements.

Where is the overdrive button on a 1985 Corvette?

To activate the overdrive, you just push the “shift pattern” button on top of the shifter! This was a trick solution back in the day and makes this car more interesting today. The seller offers no real information about the mechanical health of the engine, other than to say it “…runs great” and that “…everything is original”.

Is there a 1985 Chevy Corvette for sale?

Though a 1985 Chevrolet Corvette isn’t the most desirable car to turn up for sale, we’ll always take note of examples equipped with the factory manual transmission, which few cars seemed to have been optioned with.

What’s the best color for a 1985 Corvette?

The color combination is among the best you can get, featuring a black leather interior with the factory bucket seats appearing to be in excellent condition.

What was the problem with the corvette 4 + 3 overdrive?

The 4+3 Overdrive was plagued with many design problems in 1984 to late 1985 cars. The main problems were an underdesigned bearing in the carrier assembly, a direct clutch thrust washer breakage problem, and a pump sealing problem. The carrier bearing failed because of poor bearing design, bad preload,…

What was the new engine for the 1987 corvette?

New for 1987 was an aftermarket option that was offered to consumers when ordering their Corvettes from the factory. Although it was not a factory option, speed-thirsty consumers could order a Callaway Twin-Turbo Engine package through participating dealerships.

What was the rear axle gear ratio for a 1987 corvette?

In 1987, the 4+3 Manual Transmission came with a new, heavy duty 8.5 inch ring differential. The manual transmission overdrive selector button was moved from the console to the shift knob itself. Rear axle gear ratios for manual transmission models was 3.07:1. California Emission Requirements (NN5)

What is a 1984 Corvette’s top speed?

The Corvette now had the aerodynamics where it could be stable up to 200 mph. The 1984 Corvette’s top speed was around 140 mph which was phenomenal back in 1983. The 1984 Corvette’s great handling, steering, and braking proved that Chevrolet now wanted the Corvette to complete with the world’s best sport cars.

What are the specs for a 1984 Corvette?

Here are the specifications for the 1984 Corvette: This view highlights many new C4 features. Among them is a revised all-independent suspension with a transverse, fiberglass-reinforced leaf spring at the front as well as the rear, plus more sophisticated five-link rear geometry and forged aluminum front A-arms.

What is a 1984 Chevrolet Corvette worth?

Hagerty.com’s Price Guide shows a #1 Concours condition 1984 Corvette valued at $18,500. However, most 1984 Corvettes we see for sale are drivers and fall to somewhere between Good (#3) or Fair (#4) condition which makes them valued between $3,600 – $6,100 on the price guide.

What kind of engine does a 1988 Corvette have?

1988 Corvette C4 Targa Coupe in great condition. 5.7 liter, L-98, V8 engine. Approximately 100,000 miles. 7 speed (4 + 3) manual transmission. Black exterior with tan leather interior.

What kind of transmission does a 1988 Corvette have?

This high-output V8 combines with a choice of transmission: standard automatic with 4 th gear overdrive or the no-cost-option 4-speed manual. Both the automatic and the manual have oil and water heat exchangers and aluminum transmission housings.

What was the transmission on the Chevy Corvette C4?