The alltrac weight reduction thread

Suspension and other discussion

Postby alltracman78 » Mon Oct 18, 2004 1:18 am

EGR shouldn't weigh anything over 2lbs, if that. Probably under 1lb.
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Postby CMS-GT4 » Fri Jun 10, 2005 6:40 pm

As sugest in other threadds, a lexan sunroof replacment would be another idea for weight reduction. I think a frame may need to be made with fiberglass, or something else, then the same molding as the stock moon roof could be used. Not sure if one would like to still make it open or not. I am sure the pop up method could be used.
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engine swap

Postby hacker_720 » Tue Jun 14, 2005 1:27 pm

dose anyone know if you can swap in the 2000-2005 celica engine, it's lighter right, then turbo that one, How well do you think the tranny would like up, or even the pre 2000 engine, like the one out of the RAV-4 ,it's 4wd, maybe the trannys are simmilar? I know they are not turboed, but that can be arranged. Anyone tired this or heard of it?

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Postby CMS-GT4 » Tue Jun 14, 2005 1:32 pm

I concidered going with a "lighter" engine myself. You might save 30-50lbs, but you loose the power potential that you once had. I was looking to install a scion tc engine, but its just not worth the money that could be spent on the 3s.
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Postby Cashback » Fri Oct 14, 2005 1:09 am

furpo wrote:
ok i have had an idea. i moved the radiator over flow bottle because i did not want hot water splashing over the carbon fibre air box to the fire wall. i noticed that it is quite heavy and a really silly shape. so does any one know what car i can find a small, well shaped over flow can in? also the steel bracket can be cut off if the over flow bottle is moved.



240 guys use plastic 20oz bottles for their overflows and I've NEVER heard of any of them running into problems doing this.
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Postby daveryan » Fri Oct 14, 2005 8:54 pm

so does any one know what car i can find a small, well shaped over flow can in?


As I'm sure a lot of you are aware, there are aftermarket overflows available - like these. Click on overflows
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Postby Puffy » Sun Oct 16, 2005 11:16 am

Removed all ABS components from my GT4. This included all wiring, plugs, brackets, modules, ecu and sensors. Was suprised at how much it all weighed.

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Its 11.1kg not 111kg by the way.... the wire is covering up the decimal point :P
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Postby ruffneck » Wed Oct 19, 2005 5:43 am

Does anyone know what the lead weight attached to the engine crossmember is there for? No reason why we can't just get rid of it?
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Postby Puffy » Wed Oct 19, 2005 11:37 am

Its to protect the crossmember and bolts if the car bottoms out.
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Postby furpo » Thu Oct 20, 2005 2:40 am

ruffneck wrote:Does anyone know what the lead weight attached to the engine crossmember is there for? No reason why we can't just get rid of it?


it is not lead, it is mild steel, it does look like lead though. it is there to protect the cross member as stated above. the stupid thing is the car never bottoms out there, it bottoms out behind it. it weighs about 2kg including the two bolts that hold it on. mine got binned about 3 years ago.

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Postby muneo » Thu Oct 20, 2005 10:58 pm

Theres a few more of these weights further down. One is about midpoint on the driveshaft... I think theres one more but I can t remember. I chucked them so long ago...
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Postby db » Thu Oct 20, 2005 11:07 pm

Aren't weights on the driveshaft some form of counterweight?
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Postby muneo » Thu Oct 20, 2005 11:31 pm

Aren't weights on the driveshaft some form of counterweight?

The one I'm referring to shouldnt be, the drive shaft itself should be fully balanced. The weight might reduce typical vibration maybe but not much since the weight isnt attached to the drive shaft itself...I think it was attached to the drive shaft center mount
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Postby CMS-GT4 » Mon Nov 28, 2005 5:13 pm

Here is a link for removing the security system.

Remove completely:
Alarm System http://www.alltrac.net/phpBB2/viewtopic.php?t=7961&highlight=remove+alarm

Anyone have links to removing these items.

I have had little luck with the search tool.

A/C
Airbag computer
Cruise Control
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Postby Griffin » Sun Dec 11, 2005 3:03 am

Oh - that weight on the crossmember isn't for protection, its a calibrated weight designed to reduce vibrations in a certain harmonic. Not a big deal - just FYI
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