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Discussion Starter · #1 ·
Over the years I have read all kinds of figures of how much weight is saved when going 2WD with a Murcielago. The numbers I have read are anywhere from 100-300 lbs. Reid Performance quotes on their website a weight savings of 150 lbs.

Today I broke out the scale and weighed all of the pieces that comes OFF of the car when you go 2WD. Remember any pieces of a 2WD conversion like a transmission mount and stub axles have their own weight that is then added back on.

Here is the list:

Prop Shaft - 5.73 lbs
Torque Tube - 10.2 lbs
Half-shaft #1 - 14.65 lbs
Half-shaft #2 - 15.00 lbs
Differential - 57.2 lbs (includes diff oil)
All Hardware - 3.37 lbs (includes all bolts, and front differential rubber mounts)

Total: 106.15 lbs

Bear in mind this is for a manual transmission car that has a longer torque tube and prop shaft. As such these numbers represent the maximum amount of weight that will come off again BEFORE you put back a forward transmission mount and stub axles. I do not have weights for the Reid Performance parts but it is fair to say that the NET weight savings is somewhere closer to 90-95 lbs. Not insignificant but a decent amount less than is generally quoted.
 

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I don't have my parts to hand due to an ongoing house move, but I remember numbers similar to yours. I was hoping for 65kg from what I had read on the internet but recall being disappointed by around 10kg.

Did a friend's LP640 eGear and the numbers there were around 50 kg. So 110 +-5 pounds sounds about right.

I'll re-weigh mine once I get things out of storage...
 

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I don't have my parts to hand due to an ongoing house move, but I remember numbers similar to yours. I was hoping for 65kg from what I had read on the internet but recall being disappointed by around 10kg.

Did a friend's LP640 eGear and the numbers there were around 50 kg. So 110 +-5 pounds sounds about right.

I'll re-weigh mine once I get things out of storage...
50 Kg or 110 Lbs is still a very Good weight saving though
 

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50 Kg or 110 Lbs is still a very Good weight saving though
Indeed and add it to an exhaust upgrade and a lithium battery and you have over 100kg off the car - probably better than SV spec. Mine weighed 1650kg (3630lbs) with some fuel and no driver on an imprecise weighbridge.... I need to get it on some CW scales...
 

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Very cool! Nice job, looks like Reid Performance has some explaining to do on how they got the 150 lbs figure lol.
 
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Indeed and add it to an exhaust upgrade and a lithium battery and you have over 100kg off the car - probably better than SV spec. Mine weighed 1650kg (3630lbs) with some fuel and no driver on an imprecise weighbridge.... I need to get it on some CW scales...
Very True
 

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Very cool! Nice job, looks like Reid Performance has some explaining to do on how they got the 150 lbs figure lol.
Very cool! Nice job, looks like Reid Performance has some explaining to do on how they got the 150 lbs figure lol.
I find Reid Performance to be decent and he knows his stuff. He also has Great Products for our Platform
 

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Discussion Starter · #9 ·
My post was merely a reflection of what I found relative to what is published. Reid Performance has been an asset to the community for a long time and in no way am I slamming them for the discrepancy I measured.
 
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