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Weight of fuel and parts on the 944 951 cars?

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Old 02-15-2004, 09:51 PM
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seb928s
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Question Weight of fuel and parts on the 944 951 cars?

I'm doing an excel trying to figure out the weight of parts that you don't need or change over to like from ps to manual. Any parts you guys can think of that you know the weight for sure let me know. Also the weight of fuel per gallon in different grades but 93 mostly. I used to know how much it was it was either 9.1 pounds but I think that's to high also I have an number of 6.3 pounds but not sure which one if those are even right for 93 octane gas. Also like ac units with all the ac items and stuff like that if you know the weight please post I will make this public once I put it together. Curb weight what is it? I believe it is car as it sits without the driver but full tank of gas,oil,washer fluids,and coolant. So for that I have 2899 for the 1986 951.
Old 02-15-2004, 10:01 PM
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Manning
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Jeremy has a spreadsheet with weights that he has posted before. Look at my sig for some comparison weight savings. The AC out of my car weighed almost exactly 50lbs with the box it shipped in when I sold it. That included everything: both cores (condenser and evaporator), controls, compressor, lines, brackets.

Here is some other stuff:

Window regulator, power with wiring harness (no switches) - 6 lbs

Window regulator, non power - 3 lbs 6.2 ozs

Power flag style mirror with glass - 3 lbs 6 ozs

Cup style non power mirror - 1 lb 2 ozs

Stock power fiberglass sunroof panel without hardware or interior liner - 15.5 lbs

Manual fiberglass roof panel from 924 without hardware or liner - 10.5 lbs

Sunroof panel interior liner (manual or electric) - 3.8 lbs

I don't have the exact weights on steering racks, etc. but you save roughly 8lbs when you yank all the power steering stuff and convert to manual. Mostly in pump and fluid reservoir weight.
Old 02-15-2004, 10:06 PM
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ERAU-944
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fuel is 6 pounds per gallon. thats for 100 low lead, not sure about regular fuels, but i assume they're similar.

-Michael-
Old 02-15-2004, 10:10 PM
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seb928s
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Michael Thanks

Yea I have the sprendsheet made by Dan but I think it's off a bit since it adds weight to the car for fuel and other thing I have weighed and different weights.

Anybody know the weight of 93 fuel?

How about what I think is the curb weight is that right?
Old 02-15-2004, 10:11 PM
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ERAU-944
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93? what's that, i only use '87 i'd just use 6 ppg for the 93, its gonna be close enough. unless you want to figure out what octane weighs and then figure out a difference based on whatever they use instead of octane in lower octane fuels... too complicated, i'd just use 6.

-Michael-
Old 02-15-2004, 10:13 PM
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Manning
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Yeah, I found this doing a google search to support that:

"According to the Material Safety Data Sheets provided by BP Amoco, each of the unleaded, fuel-grade gasolines has a specific gravity around 0.75 g/ml (grams per milliliter). In British units, this specific gravity can be expressed as lb/pt (pounds per pint), since a pint of water with a specific gravity of 1.0 weighs a pound. Since there are 8 pints to a gallon, 8 x 0.75 = 6, so:

a gallon of gasoline should weigh 6 pounds."

Another source said 6.1 for gasoline on average and 7.1 for diesel
Old 02-15-2004, 10:17 PM
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ERAU-944
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right, water weighs 8 ppg. i thought oil did too, but oil floats, so its less dense. anyone got a guess?

-Michael-
Old 02-19-2004, 07:15 PM
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seb928s
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Anymore parts that we know the weight off?
Old 02-20-2004, 12:06 PM
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turbo944
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Driver's weight....but that can vary greatly, you can test this on your bathroom scales. I have 100 pounds less weight in my driver than some others do

Power seats are supposed to be an area you can do some decent weight reduction as mentioned in another thread here now.
Old 02-20-2004, 04:01 PM
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Danno
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Also if the driver visits the porta-potty before getting on the track, he can shed 5-lbs easily...
Old 02-20-2004, 04:13 PM
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sharky47
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Danno, love the avatar, is she waxing that car?
Old 02-20-2004, 04:28 PM
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Hmm time to go to the gym. I'm at 167lbs so lets get down to 100lbs jk I will save 67lbs lol. Anybody has the weights for the hood,hatch,and any other parts that can be removed from the car and car still run? I know the hatch is around 80 or so but don't know the extact number.
Old 02-20-2004, 08:10 PM
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Robby
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Lot's of the following are various wheels, but, after that, some other various weights...

____________________________________________________________
Porsche factory wheels...

C2:
17x7.5- 20lbs
17x9- 23lbs

C2:
17x7 w/205/50- 40lbs
17x9 w/255/40- 47lbs


Club Sports:
16x7- 19lbs
16x9- 21.5lbs
16x7 w/225/50/16 *- 42.5
16x9 w/245/45/16 *- 46.0
*- tires are BRAND NEW Dunlop SP8000's

Hollow Spokes:
18x8- 19.95lbs
18x10- 23.36lbs

Hollow Spokes:
18x7.5 w/225/40*- 42lbs
18x10 w/265/35*- 48lbs


996:
17x7- 19.07lbs
17x9- 22.26lbs


Design 90:
16x7- 18.7lbs
16x8- 22lbs

Phone Dial:
16x7- 18.5lbs
16x8- 20lbs

Club Sports:
16x7- 18.5lbs
16x9- 20lbs

Flat Dish:
16x7- 18.5lbs
16x8: 20lbs

993:
17x7.5- 18lbs
17x9- 19.5lbs

Fuchs:
16x6- 17lbs
16x7- 18lbs
16x8- 19lbs
16x9- 20lbs

MAGNESIUM Phone Dials:
16x8- 16.olbs
16x9- 16.5lbs

911 Fuchs Forged 16x6 17.0
911 Fuchs Forged 16x7 18.0
911 Fuchs Forged 16x8 19.0
911 Fuchs Forged 16x9 20.0
914-6 Forged Mag (5-lug) 15x5.5 7.0
928CS Forged 16x8 19.0
944S2 Cast 16x7 18.7
944S2 Cast 16x8 22.0
944S2 Spare (Steel) 16x 29.3
951 Flat Dish Forged 16x7 18.5
951 Flat Dish Forged 16x8 20.0
951 Fuchs Forged 16x7 15.0
951 Fuchs Forged 16x8 16.0
951 Phone Dial Cast 16x7 18.5
951 Phone Dial Cast 16x8 20.0
951 Phone Dial Cast Mag 16x8 16.1
951 Phone Dial Cast Mag 16x9 16.5
951S Clubsport Forged 16x7 18.5
951S Clubsport Forged 16x9 20.0
968 Cast 17x7.5 20.0
968 Cast 17x9 23.0
993 Cast 17x7.5 18.0
993 Cast 17x9 19.5
996 Cast 17x7 19.1
996 Cast 17x9 22.3
996 Cast 18x8 20.0
996 Cast 18x10 23.4
Boxter Cast 17x7 20.3
Boxter Cast 17x8.5 22.7
Club Sports Cast 16x7 19.0
Club Sports Cast 16x9 21.5
Cup Cast 18x8 26.2
Cup Cast 18x10 29.3
________________________________________________________________________ ________________________________________________

Engine weights...

944- 350lbs
944S2- 375lbs
944 Turbo- 404lbs
968- 385lbs
________________________________________________________________________ ________________________________________________
951 chassis, stripped- 450lbs
951 chassis w/undercoating, etc- 580


________________________________________________________________________ ________________________________________________________________________ ____________________________________
MISCELANIOUS-

Cat w/tube- ~15lbs
Bursch 2.5" testpipe- ~8lbs
Stock Turbo catback- 25lbs
SFR full catback- 17.5lbs
-tubing- 6.5lbs
-muffler w/tip- 11lbs

Leda shocks: Front- 9lbs
Rear- 4.5lbs
Hypercoil Springs 225#- 2.5lbs
Hypercoil helper springs 100#- 1.5lbs
Eibach Pro (Honda-?)- 5lbs
27mm T-bars- 6.5lbs
Turbo S Koni fronts w/spring & upper strut bushing- 14.5lbs

8-way elec adj seats- ~50lbs
full manual seats- ~40lbs
12-way elec adj & heated sport seats- ~40lbs
Turbo S spare- 29lbs
Turbo S SR panel- 19lbs
Hatch- ~75lbs
Hood- ~45lbs
Dash- ~45lbs
Turbo S X-drilled Zimmerman rotors- 15.5lbs (new)
Turbo S factory rotors- 15.5lbs (worn out)
Rear seatbacks (split)- 9lbs/ea
Rear seatbelts w/misc bolts, etc (total- w/shoulders)- ~7lbs
Seat bottom- 8lbs
Hatch carpet- 14lbs


____________________________________________________________

I've got a bunch more, but, don't have everything handy at the moment... I've oftentimes installed new things & then found the DIFFERENCE in weight, but, have not recorded the various weights themselves... BTW- I asked about the weight of gasoline a long time ago, here, & was told it was almost 7lbs- not sure, but, a Turbo S DEFINATELY DOES havea 21.1gal tank...
Old 02-20-2004, 08:58 PM
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tifosiman
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All 85.5 and newer 944 cars had a 21 gal tank.
Old 02-21-2004, 12:03 AM
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Robby
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Originally posted by tifosiman
All 85.5 and newer 944 cars had a 21 gal tank.
I'm not sure about that- I started a gas mileage thread awhile back & several turbo owners said that their cars only had 19gal tanks- someone looked it up in an owners manual & said that it even said 19.xgal in that particular year- I think it was 87- might have been 86- might have been 86 & 87- if one year only, it would make more sense to be just 86 though- anyone here know for sure? You know, now that I think about it, & I may be wrong, but, I think it was Danno.... what year is HIS car?

Personally, I like larger tanks- I'd like to have an extra gal or two in mine, actually- perfect, to me, would be 25gal I think- much above that seems to just be extra weight to carry, etc- I think 25gal w/a well running 951 would be awesome- on the freeway, w/an S2 5th, you should have NO trouble breaking 30mpg- that would work to >700 mile range before needing to fill up....


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