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      09-01-2012, 05:53 PM   #1
Dansarkis
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X5 diet

Anybody know if you can remove the backseats with some ease in an X5M? Are you doing anything else at the track to lighten the load?

Thanks
D
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      09-01-2012, 06:07 PM   #2
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      09-01-2012, 09:24 PM   #3
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Quote:
Originally Posted by momentum View Post
Really?
The e93m3 is heavier then the e60m5. As a matter of fact, it was the heaviest ///M ever, until the x5m came out.

To the OP: backseats and rear cargo area panels are easy to remove and take some knowledge and careful patience to install again. However, at 5,200 lbs + you are going to feel very little difference after removing 100 or even 200 lbs.
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      09-01-2012, 10:40 PM   #4
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Quote:
Originally Posted by mastek
Quote:
Originally Posted by momentum View Post
Really?
The e93m3 is heavier then the e60m5. As a matter of fact, it was the heaviest ///M ever, until the x5m came out.

To the OP: backseats and rear cargo area panels are easy to remove and take some knowledge and careful patience to install again. However, at 5,200 lbs + you are going to feel very little difference after removing 100 or even 200 lbs.
You don't think 100-200 wouldnt make even a 10th difference getting close to a 5% drop in weight esp with other parts lightened? Wheels, downpipes... What not.
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      09-02-2012, 04:48 AM   #5
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Quote:
Originally Posted by Dansarkis View Post
You don't think 100-200 wouldnt make even a 10th difference getting close to a 5% drop in weight esp with other parts lightened? Wheels, downpipes... What not.
Lightened wheels, tires and rotors make a difference on any car = rotating mass.
Taking out the rear seats and rear cargo panels on ur X5M will maybe yield 100 lbs. max... and u will not feel that on a 5200 lbs car.

I dropped 200 lbs. off my e46m3 and felt it at the track by 2 seconds = 3200 lbs.
But when I dropped 200 lbs off my e90m3 i only gained 5/10ths at the track = 3400 lbs.
Weight at the track works exponentially after a certain number and it has to do with change of direction/inertia. A GT-R doesn't start getting faster until you drop down below 3600 lbs. so oddly enough a 3700 lbs. GT-R will go as fast as a 3900 lbs. version.

There is not a scientific calculation to this, but I would assume you would have to lose at least 400 lbs to feel or see any difference on the timesheets.
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      09-02-2012, 07:34 AM   #6
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Quote:
Originally Posted by mastek
Quote:
Originally Posted by Dansarkis View Post
You don't think 100-200 wouldnt make even a 10th difference getting close to a 5% drop in weight esp with other parts lightened? Wheels, downpipes... What not.
Lightened wheels, tires and rotors make a difference on any car = rotating mass.
Taking out the rear seats and rear cargo panels on ur X5M will maybe yield 100 lbs. max... and u will not feel that on a 5200 lbs car.

I dropped 200 lbs. off my e46m3 and felt it at the track by 2 seconds = 3200 lbs.
But when I dropped 200 lbs off my e90m3 i only gained 5/10ths at the track = 3400 lbs.
Weight at the track works exponentially after a certain number and it has to do with change of direction/inertia. A GT-R doesn't start getting faster until you drop down below 3600 lbs. so oddly enough a 3700 lbs. GT-R will go as fast as a 3900 lbs. version.

There is not a scientific calculation to this, but I would assume you would have to lose at least 400 lbs to feel or see any difference on the timesheets.
Fair enough!

I will see how the new parts go and let you know. Thanks for the info.

D
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      09-02-2012, 04:01 PM   #7
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if you want to have fun around a racetrack and even rules it, why are you driven such a behemoth? TRY A Z06!
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      09-02-2012, 11:12 PM   #8
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Lighter wheels + Nitrogen air on tires + Titanium full Exhaust + CF hood + Ceramic brakes + rear seat removed + 1/4 fuel tank = Diet
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