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| 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 In conclusion: 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 yieilds a combined weight savings of 21 pounds lighter at the rear of the vehicle. Hence: No added cost of beefing up your rear suspension to off set any added weight. Home |