Big Dave -
Quote:
Originally Posted by Big Dave
Car clubs think MPG is craziness. They all act they are wanting to win the Indy 500.
The car is basically a Caprice cop car with a lower stance and Corvette engine.
|
Yeah, but you don't have to ask an MPG question. Just say you want to control the shifting and/or think you have a sick tranny. If it's an SS I would think that someone had tried to "manumaticize" the tranny. For fun I blinged "+4L60E manumatic" and found these :
Manumatic Technology : TwistMachine.com, CNC Innovations for Hot Rods
Quote:
...
. An LS1/4L60E [automatic transmission] with a factory computer comes close to meeting all of the criteria, but the computer does not contain manumatic software--nor is their any way to load the software into the factory computer, so an aftermarket transmission computer is still required. Bummer. Don't blame us--blame GM.
Now let's look at availability:
1) COMPUTERS: Compushift, Powertrain Control Solutions
2) MANUMATIC PROGRAMMING: Is loaded into all of the computers listed above. It makes decisions like downshift prevention, manual/automatic mode switching, shift speed, first gear restarts, torque converter lock-up control, snow mode, tow mode, etc. There is much more to manumatic control than just "hitting" the shift solenoids.
3) ELECTRONIC Transmission: Actually the PCS controller will run virtually any electronic transmission. The other brands run 4L60E, 4L80E, AOD-E and 4R70W, 4R100. The key here is that shifting and line pressure are controlled electronically.
...
|
I am assuming you have the 4L60E tranny because of this :
Chevrolet Impala - Wikipedia, the free encyclopedia
Quote:
...
The Impala SS was uniquely fitted with a standard 3.08 gear. The limited-slip rear differential was standard (as opposed to the option G80 on caprices) and suspension that was an inch lower. A retuned LT1 5.7-liter (350 cu in) small-block V8 was standard on the Impala SS, making 260 horsepower (190 kW) and 330 pound-feet (450 N·m) of torque (retuned from the prototype's 300 horsepower (220 kW) rating). The primary difference between the LT1 in the Impala and the LT1 that was in the Corvette and Camaro was that the Impala engine was fitted with cast-iron cylinder heads instead of aluminum ones, and a camshaft that was designed more for low-end torque than high-end horsepower. Another difference was that the Impala LT1 had 2 bolt main bearing caps while the Corvette LT1 had 4 bolt main bearing caps. The transmission used in the car was the 4L60E, which was itself an upgraded and revised version of the previous 4L60. However, the transmission was not beefed up for the power of the LT1, and transmission failures after 100,000 miles (160,000 km) were commonplace. A standard transmission was never available in the 94-96 the impala ss. However there is a growing trend to replace the 4L60-E transmission, with the T-56 (6 speed manual) from the camaro and firebird using aftermarket kits....
|
Ooooooh, methinks you could convert it to a stick and have fun again.
CarloSW2