Component Weights and Dimensions

Real tech discussion on design, fabrication, testing, development of custom or adapted parts for Pontiac Fieros. Not questions about the power a CAI will give.

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ericjon262
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Location: Aiken, SC

Re: Component Weights and Dimensions

Post by ericjon262 »

I think it's a great place for it! thanks for posting, it gives me an idea of what to expect my car to weigh. I take it this is a 2.8 and TH125c?
"I am not what you so glibly call to be a civilized man. I have broken with society for reasons which I alone am able to appreciate. I am therefore not subject to it's stupid laws, and I ask you to never allude to them in my presence again."
pmbrunelle
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Location: Grand-Mère, QC

Re: Component Weights and Dimensions

Post by pmbrunelle »

I'll add in a data point:

85 SE
Stock V6 with turbo, Muncie 4-speed trans
Stock Hi-Tech wheels with 215/60R14 Radial T/A tires.
AC delete
Spare tire + jack delete
Rear sway bar
Floormats are installed
Me sitting in the driver's seat: 55 kg
Laptop in passenger seat: considered negligible
Fuel situation: almost full

Measurements taken at local truck scale (10 kg resolution):

Entire car on scale:
Front: 510 kg
Rear: 730 kg
Total: 1240 kg

Left tires on scale:
Front left: 270 kg
Rear left: 360 kg
Total left: 630 kg

Right tires on scale:
Front right: 240 kg
Rear right: 370 kg
Total right: 610 kg
Honest Don
Posts: 469
Joined: Wed Aug 08, 2007 11:08 am

Re: Component Weights and Dimensions

Post by Honest Don »

Yeah, 2.8/125c
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The Dark Side of Will
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Re: Component Weights and Dimensions

Post by The Dark Side of Will »

Honest Don wrote: Sat Jun 06, 2020 10:45 pm Is this a good thread for this?

87 notch aero-nose
A/C
Auto
Spare and jack gone, but I’ve only really pulled stuff out to put different stuff back in.
2/3 tank of gas and even the floormats are still in it.
Oh wow, you're under 2800 with an automatic? Nice.

I'm hoping to get The Mule under 2700 with a Northstar and Getrag... but have to exercise judicious component selection to get there.
Honest Don
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Re: Component Weights and Dimensions

Post by Honest Don »

The Dark Side of Will wrote: Sun Jun 07, 2020 3:54 pm
Oh wow, you're under 2800 with an automatic?
What do they usually come in at?
The Dark Side of Will
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Re: Component Weights and Dimensions

Post by The Dark Side of Will »

I'm under the impression that's on the lighter side for a V6 Fiero, and I expected automatics to be on the heavier side.
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Re: Component Weights and Dimensions

Post by The Dark Side of Will »

The Dark Side of Will wrote: Sun Aug 19, 2012 9:26 am 84-87 rear knuckle:
bare weight: 9 lbs 7 oz
The Dark Side of Will wrote: Mon Sep 01, 2014 1:24 pm A-body HD knuckle:
Weight: 10 lbs 4 oz
The Dark Side of Will wrote: Tue Dec 12, 2017 8:27 am '96 Trans Sport knuckle: 11 lbs 8 oz
Well junk... my fabbed hub carrier design is coming in at 11.89 lbs and I haven't added the toe link boss yet... better get busy with the speed holes!
Honest Don
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Re: Component Weights and Dimensions

Post by Honest Don »

SPEEEED HOOOOOLLLLES!


https://youtu.be/hqvbmTEVZVI
The Dark Side of Will
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Re: Component Weights and Dimensions

Post by The Dark Side of Will »

Speed Holes! Add Lightness!

My hub carrier still has to hold the car up, so I can't go as far as he did.

These guys like speed holes in their uprights too: https://us.gktech.com/240sx-skyline-z32 ... kinematics
The Dark Side of Will wrote: Sat Apr 28, 2007 7:07 pm '88 front knuckle: 4# 14 oz
At least my assembled knuckle design for the '88's is coming in a hair under 4 lbs, although I haven't added the bolts into the model yet.
The Dark Side of Will
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Re: Component Weights and Dimensions

Post by The Dark Side of Will »

I added the toe link and an extensively relieved bracket for radial mount calipers, reworked the mount lugs for the radial caliper bracket and ended up at... 10.5 lbs. Not bad, and I haven't completely exhausted my speed hole options.
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Re: Component Weights and Dimensions

Post by The Dark Side of Will »

1988 Fiero lower ball joint taper: 2"/ft
1988 Fiero upper ball joint taper: 10 degrees
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