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Weight Saving Gains


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#1 malc_west

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Posted 30 July 2018 - 06:28 PM

So thinking about weight reduction and wondering what a realistic difference in weight can be made? I believe listed weight is 634kg so could you remove 10 percent of that with out going to crazy (roof change ect)

#2 Carlos W

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Posted 30 July 2018 - 06:39 PM

How much do you weigh?

#3 I hate Brian

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Posted 30 July 2018 - 06:45 PM

:lol:  :lol:  :lol:  :lol:  :lol:  :lol:  :lol:  :lol:  :lol:  :lol:  :lol:  :lol:



#4 malc_west

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Posted 30 July 2018 - 06:49 PM

71kg

#5 Carlos W

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Posted 30 July 2018 - 06:53 PM

71kg

No savings to be made there then.

10% is quite a lot to aim for, but there are loads of options like aluminium doorskins, fibreglass bonnet and boot, racing battery, Perspex windows

#6 nicklouse

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Posted 30 July 2018 - 07:08 PM

better results can be found removing weight from the rotating mass of the engine.

 

10% reduction ends you with a stripped out sound box.



#7 WillCarter

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Posted 30 July 2018 - 07:15 PM

http://www.theminifo...-weight-saving/

Depends how much money you've got to spend for carbon fibre parts, perspex and so on too

#8 dotmatrix

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Posted 30 July 2018 - 07:20 PM

The first 25kg is easy. Perspex Windows, lithium batteri and remove the heater. But the perspex and the Missing heater is annoying in a road car.

#9 malc_west

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Posted 30 July 2018 - 07:58 PM

Ok lads cheers

#10 AndyR

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Posted 30 July 2018 - 08:36 PM

Another overlooked thing.  Make sure the bodywork is in top condition.  You will be surprised how much extra weight your car could have gained over the years with bodywork bodges like over sills, cheat inner sills, flitch repairs etc, rust and filler.

 

Andy



#11 nicklouse

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Posted 30 July 2018 - 08:58 PM

for an idea this was 570kg when done in the late 90s

3v2rF0E.jpg



#12 Milton

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Posted 31 July 2018 - 06:15 AM

Keep the weight and increase the engine bhp and torque, same difference

#13 Steve220

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Posted 31 July 2018 - 08:55 AM

Keep the weight and increase the engine bhp and torque, same difference


A lighter car would be better.

#14 WillCarter

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Posted 31 July 2018 - 09:12 AM

The lighter the car the better it will accelerate, stop and handle. How far are you wanting to go with stripping everything out?

#15 Cooperman

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Posted 31 July 2018 - 09:14 AM

The first thing is to decide what you hope to achieve by the weight saving. The only real gain is in better acceleration. On a road car weight saving usually leads to more internal noise.
As above, more engine power and, more importantly, more torque will give a better overall result as will lowering the final drive ratio. A 3.44:1 is a good overall ratio.
Lightening the flywheel is another good way of improving performance as more of the torque is available to accelerate the car.
However, if the car is for motor-sport all weight saving is good as it reduces the lap times.




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