1st gen parts weight list
10-11-09, 03:35 PM
#1
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1st gen parts weight list
For those (including myself) interested in what their car weighs with each part that is replaced, or simply tossed to the back of the garage. I'd like to have a thread that shows the weight of both common and uncommon parts that are removed from, or replaced on fbs. From front to back, top to bottom, inside and out!!! I'd start it by weighing something myself, but I don't have a scale. I will however, start this off with the weight of each model.
A=automatic transmission
M=manual transmission
79-80
3sp-A=2410lbs
4sp-M=2350lbs
5sp-M=2385lbs
81-83
3sp-A=2360lbs
5sp-M=2335lbs
84-85
4sp-A=2300
5sp-M(non GSL-SE)=2335
5sp-M-GSL-SE=2640
A=automatic transmission
M=manual transmission
79-80
3sp-A=2410lbs
4sp-M=2350lbs
5sp-M=2385lbs
81-83
3sp-A=2360lbs
5sp-M=2335lbs
84-85
4sp-A=2300
5sp-M(non GSL-SE)=2335
5sp-M-GSL-SE=2640
10-11-09, 08:56 PM
#6
The intermediate plate does weigh a little more because it has motor mount castings at the bottom on both sides. The rotors are 11.5 pounds each. 12A rotors of the time were more like 9.5 pounds. The flywheel is the same weight as the '83-'85 12A at 26 pounds. The rotor housings are slightly heavier due to length. The shaft and tension bolts are slightly longer. There are 18 tension bolt on the GSL-SE engine compared to 17 of the 12A. The intake manifold contains more aluminum than a 12A. Water pumps and exhaust systems should be about the same.
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10-12-09, 01:44 AM
#8
bigger wheels, tires, brakes, etc adds up pretty quick. A lot more happening in the engine bay, compare all the intake, afm, etc to a simple nikki and tiny 12a intake. Engine weight, yeah a few pounds there. Rear diff, probably a few there too along with other suspension differences. Leather seats weigh a ton too. Perhaps more interior insulation? Stereo system with amps vs basic. Maybe the weight listed for a 12a model is a basic gs, no sunroof?? All the little stuff can add up pretty quick.
10-12-09, 09:11 AM
#9
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I'm sure that there are some slight differences in weight between base and gsl models. I just wanted to have a platform to get everyone started on. Also, I didn't see an auto option listed for the gsl-se, didn't know they were all 5sp...
10-13-09, 03:01 PM
#11
http://grassrootsmotorsports.com/articles/lucky-7/
"Thanks to the bigger wheels, more luxurious options and a more complicated induction system, the GSL-SE was more than 200 pounds heavier than its predecessor, so performance was not that startling. Many autocrossers opted to stay with their earlier cars, especially considering the more favorable classing of those 12A-powered RX-7s. "
Got bored, found info.
"Thanks to the bigger wheels, more luxurious options and a more complicated induction system, the GSL-SE was more than 200 pounds heavier than its predecessor, so performance was not that startling. Many autocrossers opted to stay with their earlier cars, especially considering the more favorable classing of those 12A-powered RX-7s. "
Got bored, found info.
10-14-09, 11:19 AM
#16
Actually the rear end housing/diff is the same between and GSL and a GSL/SE in 84-85. The front spindles/strut tubes are too.
The cross member on the SE is different as is the front motor mt plate. Rear axles are different between the GSL and GLS/SE but they both use the same bearing, seal, retainer and side gear.
To me it would be the Pwr steering, bigger brakes, wheels and lux equipment that would account for the difference in weight.
The cross member on the SE is different as is the front motor mt plate. Rear axles are different between the GSL and GLS/SE but they both use the same bearing, seal, retainer and side gear.
To me it would be the Pwr steering, bigger brakes, wheels and lux equipment that would account for the difference in weight.
10-14-09, 11:32 AM
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bigger wheels, tires, brakes, etc adds up pretty quick. A lot more happening in the engine bay, compare all the intake, afm, etc to a simple nikki and tiny 12a intake. Engine weight, yeah a few pounds there. Rear diff, probably a few there too along with other suspension differences. Leather seats weigh a ton too. Perhaps more interior insulation? Stereo system with amps vs basic. Maybe the weight listed for a 12a model is a basic gs, no sunroof?? All the little stuff can add up pretty quick.
10-14-09, 01:14 PM
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10-14-09, 01:26 PM
#21
The weight difference between SE and non-SE models is pretty simple. The fact is the the non-SE weight is an average of sorts between the various models and many of them came to the US without AC (so AC is not included in the weight for the most part). The AC systems in the 12A cars were typically installed at the port or by dealers. All of the SEs came with factory installed AC, so that is included in the weight.
If you put an S3 GSL (with AC) on the scales and then a GSL-SE with the same options, you'll find the weight difference to be almost nill. You have to remember that a GSL is really the same thing as the GSL-SE with the exception of the engine. There are other small differences (like bigger brakes), but these differences are very small. For instance, the GSL-SE has larger brake rotors, but the GSL-SE is vented on all 4 wheels where the GSL discs are solid on the rear. Wheels are larger on the GSL-SE, but I doubt they are really any heavier (and the difference would not be significant to the total weight of the car if there is a difference there).
If you are going to compare the weights on the cars, you need to compare apples to apples. There is a big difference between the S and a loaded GSL in terms of weight, but not much difference between a loaded GSL and a GSL-SE. Plus, you got a signicant increase in power, torque, and a wider powerband with those few extra pounds on the GSL-SE model. If you are wanting light, start with a basic S model and go from there.
Edit: Also the S3 GSL and GSL-SE could be had with or without power steering.
If you put an S3 GSL (with AC) on the scales and then a GSL-SE with the same options, you'll find the weight difference to be almost nill. You have to remember that a GSL is really the same thing as the GSL-SE with the exception of the engine. There are other small differences (like bigger brakes), but these differences are very small. For instance, the GSL-SE has larger brake rotors, but the GSL-SE is vented on all 4 wheels where the GSL discs are solid on the rear. Wheels are larger on the GSL-SE, but I doubt they are really any heavier (and the difference would not be significant to the total weight of the car if there is a difference there).
If you are going to compare the weights on the cars, you need to compare apples to apples. There is a big difference between the S and a loaded GSL in terms of weight, but not much difference between a loaded GSL and a GSL-SE. Plus, you got a signicant increase in power, torque, and a wider powerband with those few extra pounds on the GSL-SE model. If you are wanting light, start with a basic S model and go from there.
Edit: Also the S3 GSL and GSL-SE could be had with or without power steering.
Last edited by gsl-se addict; 10-14-09 at 01:28 PM.
10-15-09, 12:46 AM
#23
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The weight difference between SE and non-SE models is pretty simple. The fact is the the non-SE weight is an average of sorts between the various models and many of them came to the US without AC (so AC is not included in the weight for the most part). The AC systems in the 12A cars were typically installed at the port or by dealers. All of the SEs came with factory installed AC, so that is included in the weight.
If you put an S3 GSL (with AC) on the scales and then a GSL-SE with the same options, you'll find the weight difference to be almost nill. You have to remember that a GSL is really the same thing as the GSL-SE with the exception of the engine. There are other small differences (like bigger brakes), but these differences are very small. For instance, the GSL-SE has larger brake rotors, but the GSL-SE is vented on all 4 wheels where the GSL discs are solid on the rear. Wheels are larger on the GSL-SE, but I doubt they are really any heavier (and the difference would not be significant to the total weight of the car if there is a difference there).
If you are going to compare the weights on the cars, you need to compare apples to apples. There is a big difference between the S and a loaded GSL in terms of weight, but not much difference between a loaded GSL and a GSL-SE. Plus, you got a signicant increase in power, torque, and a wider powerband with those few extra pounds on the GSL-SE model. If you are wanting light, start with a basic S model and go from there.
Edit: Also the S3 GSL and GSL-SE could be had with or without power steering.
If you put an S3 GSL (with AC) on the scales and then a GSL-SE with the same options, you'll find the weight difference to be almost nill. You have to remember that a GSL is really the same thing as the GSL-SE with the exception of the engine. There are other small differences (like bigger brakes), but these differences are very small. For instance, the GSL-SE has larger brake rotors, but the GSL-SE is vented on all 4 wheels where the GSL discs are solid on the rear. Wheels are larger on the GSL-SE, but I doubt they are really any heavier (and the difference would not be significant to the total weight of the car if there is a difference there).
If you are going to compare the weights on the cars, you need to compare apples to apples. There is a big difference between the S and a loaded GSL in terms of weight, but not much difference between a loaded GSL and a GSL-SE. Plus, you got a signicant increase in power, torque, and a wider powerband with those few extra pounds on the GSL-SE model. If you are wanting light, start with a basic S model and go from there.
Edit: Also the S3 GSL and GSL-SE could be had with or without power steering.
10-16-09, 08:04 AM
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Mine too! Along with....
power steering
stock pulleys (replaced with gilmer drive setup)
pop up headlights (working on flush mounts)
Storage bins
rear carpet
all trim inside the rear cargo area (painted to match body color)
stock seats (replaced with 18lb cobra misano knock offs)
power antenna
stock dash and frame behind it. (working on fiberglass dash)
Rear bumper (working on a diffuser)
stock clarion setup
power mirrors (replaced with aluminum ray dots)
stock shifter (replaced with billet short shifter)
side molding
spare tire
stock exhaust
rats nest
stock radiator (lighter aluminum)
stock fan (lighter electric)
misc. shrouds, trim
There are a few more odds & ends, including about 20lbs of leftover bolts that I won't reuse. When all is said and done, I hope to be around 2000lbs. I do have a 6pt. cage and a few things that will replace some of the weight taken out.