TOY-JET V8 LS1 CONVERSION FACTS
THE #2 MOST ASKED QUESTION ABOUT THE TOY-JET CONVERSION PROCESS:
"How much weight does your LS1 Conversion kit add to the rear of the vehicle?"
Answer: The LS1 conversion + Toy-Jet cooling system saves you 21lbs. over
your factory setup at the rear of the vehicle.
Let's do the math:
The Toy-Jet cooling system 47 pounds
Stock Porsche Wing 12 pounds
Weight differential: (Toy-jet cooling system) 35 lbs. heavier
Weight difference 3.0 liter Porsche engine -vs- GM LS1 5.7 liter Corvette engine
Stock 3.0 Liter Porsche Engine
My fully dressed 1980 3.0 Porsche engine ready to install weighed 472 lbs. Factor in the
weight of the oil in the 10 quart oil tank mounted at the rear of the vehicle (which will need
to be removed) needed to support the 3.0 engine, then your engine plus oil tank weight jumps
up to 490.5 lbs. at the rear of the vehicle.
Let's factor in the oil and tank weight.
One gallon of oil is 7.4 lbs.
Ten quarts is 2.5 gallons
2.5 x 7.4 lbs. = 18.5lbs
18.5 lbs. + (3.0 ltr. engine wt.) 472 lbs. = 490.5 lbs. at the rear of the vehicle
(not factoring in the weight of the oil tank and lines which will be removed)
All Aluminum LS1
A fully dressed 2000 LS1 5.7 liter Corvette engine ready to install with the engine computer and
wire harness, complete exhaust system, engine mounting brackets, AC compressor, alternator,
custom water pump adapter, transmission adapter plate and flywheel weighed 434 lbs. This is
a rear engine weight savings of 56 lbs. over the Porsche 3.0 engine. I did not weigh the above
engines with the transaxle or clutch assembly bolted to either engine. These parts would be used
for both installations and their weights would obviously cancel.
LS1 = 434 lbs. at the rear of the vehicle
Now let's factor in the Toy-Jet Cooling system
Weight of LS1 engine -vs- the Porsche 3.0 stock engine: 56 lbs. lighter
Weight of (ToyJet) cooling system -vs- stock Porsche Wing - 35 lbs. heavier
21 lbs. total weight difference
A Porsche 911 equipped with the LS1 conversion and Toy-Jet cooling system installation yields a
combined weight savings of 21 pounds lighter at the rear of the vehicle.
No added cost of beefing up your rear suspension to off set any added weight.
The heart of the Porsche 1980 SC is a 3-liter, 6-cylinder, alloy boxer motor, It will go from 0 to 60 miles per hour in 5.8
seconds. The quarter mile dash takes just over 14 seconds, and top speed is 149mph.
LS1 Supercharged (low boost) 1980 Porsche 911 SC is a 5.7liter V8, alloy motor. It will go from 0 to 60 miles per hour in 3.7
seconds. The quarter mile dash takes just over 11.5 seconds, and top speed is right at 190 - 200 mph. Not bad for a vehicle
conceived and built in a home garage.