The alltrac weight reduction thread

Suspension and other discussion

Postby CMS-GT4 » Fri Aug 04, 2006 1:45 am

A celicatech link on weight reduction.

Read the posts by johnL

http://celicatech.com/forums/showthread ... post205820

He started with a 2980lb st18x gts and reduced it to 2395.

He is still on stock wheels and has the stock gas tank.

http://s100.photobucket.com/albums/m31/ ... h=imgAnch1

http://s100.photobucket.com/albums/m31/ ... 4ce677.jpg

Since the alltrac interior is the same simular results could be expected.
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92 st185 (205 swap) | 03 350Z Track (sold) | 13 Pilot | 17 Mazda3
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Postby 2of81 » Tue Aug 08, 2006 10:31 pm

I went to the floor some with a chisel and hammer and knocked away some sound deadening in my spare time today.I'm gonna fill up some walmart sacks and weigh that stuff on the freon scale. Yea I'll grab some pics.
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Postby CMS-GT4 » Wed Aug 09, 2006 3:55 pm

I hear dry ice makes that stuff come right off. Might want to google it.

What are you doing for the dash?

I concidered a peice of CF with holes for gauges.

Your using an aftewrmarket steering wheel too right?

I figure the airbag and acc. should free more weight.
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92 st185 (205 swap) | 03 350Z Track (sold) | 13 Pilot | 17 Mazda3
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Postby 2of81 » Wed Aug 09, 2006 10:00 pm

Dash- use basically the pad in the car and pull out all the climate controls, heater and AC stuff as much as I can. Gonna find an ST with crank windows, I am leaning strongly towards gutting the sunroof now. Steering wheel is a CS edition MOMO, one of these days I'll get enough change for a Sparco EVO seat fo myself, have the leather one for passengers and pull it out for racing, going for a roll cage and harnesses.
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Postby alltrac101 » Thu Aug 10, 2006 12:23 am

there is also the knee plate under the dash on the drivers side.

If you guys are interested, I'm in the process of getting a carbon fiber or reinforced fiberglass sunroof plug made
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Postby CMS-GT4 » Thu Aug 10, 2006 12:46 am

I am interested. Is this something that could snap in and seal up the top? Could we use a non sunroof head liner?
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Postby b00staholic » Thu Aug 10, 2006 1:58 am

Pat,

I'm definitely interested in a sunroof plug if it provides significant weight savings off the top of our cars.

Other deciding factors for me will be how difficult it is to install and price.

Here's one I found online for a Honda Prelude:

http://www.macqc.com/raceplates/newProducts.htm

Weight savings are significant, it looks great, price is about right, but the installation is difficult. From what I understand, you have to drill 20+ holes or so in the car's sheetmetal.

If you can come up with an easier way to install the sunroof plug and still achieve the same amount of seal, that would be ideal. If you can re-use factory threaded holes and don't require extra drilling, that would be ideal, but I don't know if that's possible.

Perhaps once you get more details on your setup, you can start a new thread about this?
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Postby alltrac101 » Thu Aug 10, 2006 3:37 pm

unfortunately that is the only way to install a plug, after all the mechanism is removed there is no longer any support for the sunroof panel

the difference with the one I want to have made is that it will be a very close copy of the original sunroof,( exterior dimension including weather strip), but with vertical lips on the sides & front & a tongue on the back, the 3 vertical sides will have to be riveted to the roof & the rear to a bracket adhered to the inside of the roof

the plug will most likely weigh less than 6 lbs total & I'm guessing the pieces we take out will be at least 50 lbs

be patient, still need to talk to the dude
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Postby CMS-GT4 » Thu Aug 10, 2006 4:52 pm

I think the entire sunroof assembly was weighted at 35lbs. I think griffin had the roof skin replaced and also the headliner. The headline gave him more head room.
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Postby Sifu » Thu Aug 10, 2006 5:04 pm

Who's with me for another thread with just the weight of OEM and aftermarket parts? I believe this thread is great for a discussion but it would be nice to have a broken down sheet of all our goodies...
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Postby CMS-GT4 » Thu Aug 10, 2006 5:16 pm

Make the tread and I will link it to our handling faq.

Rear bottom seat 10lbs. There is a first item to your list.

Anyone want to weight their A/C setup?
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Postby alltrac101 » Thu Aug 10, 2006 5:39 pm

CMS-GT4 wrote:I think the entire sunroof assembly was weighted at 35lbs. I think griffin had the roof skin replaced and also the headliner. The headline gave him more head room.


I know it has to weigh more than 35 lbs., when I removed my 165's for some reason , more than 50 lbs. is stuck in my head.

dont want to cut roof off, want to keep the original paint, plus the way I'm thinking its goin to look the sunroof area will look embossed

the head room will be the same as a non-sunroof, will just have the liner custom made out of a material that is a lot easier to clean

btw. abs & a/c parts weigh close to 95 lbs.
factory seats 49 lbs, drivers..
sparco w/ slider & brackets 21 lbs..25 lbs. w/ 5 pt harness & bolts
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Postby CMS-GT4 » Thu Aug 10, 2006 5:50 pm

I think the biggest weight I want to replace is the lower a-arm. I think a tubular a-arm would be a huge weight saving for handling and the car.

I am most interested in this item out of everything.
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92 st185 (205 swap) | 03 350Z Track (sold) | 13 Pilot | 17 Mazda3
www.noritoy.com | noritoy.deviantart.com | http://www.alltrac.net/phpBB2/viewtopic.php?f=44&t=19891
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Postby Sifu » Thu Aug 10, 2006 6:28 pm

CMS-GT4 wrote:Make the tread and I will link it to our handling faq.

Rear bottom seat 10lbs. There is a first item to your list.

Anyone want to weight their A/C setup?

There... Cleaner... I can weight some more things in the upcomming weeks. Gotta' get the new engine and tranny a go...

http://www.alltrac.net/phpBB2/viewtopic.php?p=140227#140227
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Postby Gary » Tue Aug 15, 2006 4:50 pm

More part weight
AFM : 2.5 lbs
Stock air box, top and boottom : 2.2 lbs
Side mirror, each : 2lbs
System 10 amplifier : 3.8 lbs
System 10 head unit : 5.5 lbs
RC/CS bumper cover : 7 lbs
RC/CS number large reinforcement : 4 lbs
ST205 IC, core only : 10.5 lbs
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