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ahmed View Drop Down
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    Posted: Jul/09/2013 at 9:26am
Guys, i have been searching for the overall weight of the competing BAJA cars in 2013 or the previous years but i can't find anything.
we are going to participate in Baja2014 , and i want to estimate our car's weight.
Thank you
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Post Options Post Options   Thanks (1) Thanks(1)   Quote Samars Quote  Post ReplyReply Direct Link To This Post Posted: Jul/09/2013 at 9:32am
http://students.sae.org/competitions/bajasae/results/
 
 
2012 Auburn characteristics here
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Post Options Post Options   Thanks (1) Thanks(1)   Quote zglazer Quote  Post ReplyReply Direct Link To This Post Posted: Jul/09/2013 at 11:44am
The results spreadsheet for Rochester 2013 also includes a sheet with vehicle weights, although some of the team numbers have the wrong names associated with them on that sheet.
Zack Glazer
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Post Options Post Options   Thanks (0) Thanks(0)   Quote robins5d Quote  Post ReplyReply Direct Link To This Post Posted: Oct/09/2013 at 1:14pm
im looking at the rochester results now. cant find anything about weight
Paul Robinson
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Post Options Post Options   Thanks (0) Thanks(0)   Quote zglazer Quote  Post ReplyReply Direct Link To This Post Posted: Oct/09/2013 at 1:18pm
They must have since removed it.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Simps002 Quote  Post ReplyReply Direct Link To This Post Posted: Oct/09/2013 at 2:09pm
I would estimate average vehicle weight w/o driver at between 300 and 400 lbs. There are lighter and heavier vehicles out there though. Ours last year (fist timers) weighed 730 lbs Thumbs Down. Don't be like us. 
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Soccerdan7 Quote  Post ReplyReply Direct Link To This Post Posted: Oct/09/2013 at 2:41pm
I would say the average weights from the past few years are something like:

top 10 cars: <375 lb
competitive cars: 375-450 lb
out there to have fun cars: >450 lb

I believe 730 is probably the heaviest (or close to it) and 290 was the lightest. This is not to say that a 400 lb car won't win a race, but it is rarer that one does.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote dillon_b12 Quote  Post ReplyReply Direct Link To This Post Posted: Oct/09/2013 at 3:18pm
Originally posted by Soccerdan7 Soccerdan7 wrote:

I would say the average weights from the past few years are something like:

top 10 cars: <375 lb
competitive cars: 375-450 lb
out there to have fun cars: >450 lb

I believe 730 is probably the heaviest (or close to it) and 290 was the lightest. This is not to say that a 400 lb car won't win a race, but it is rarer that one does.

I would agree with these ranges.  296 is the lightest I think I ever saw(Michigan Ann-Arbor).

There was at least one car over 1,000 lbs Ocala in '07 and there was a 931 lb car at Auburn '09. Those were the two highest I can recall seeing.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Phate Quote  Post ReplyReply Direct Link To This Post Posted: Oct/09/2013 at 3:27pm
Originally posted by Simps002 Simps002 wrote:

I would estimate average vehicle weight w/o driver at between 300 and 400 lbs. There are lighter and heavier vehicles out there though. Ours last year (fist timers) weighed 730 lbs Thumbs Down. Don't be like us. 

624 for us at rochester last year, weight creep became a major issue.  You can't really "just make" brackets and fixtures and expect weight to stay sane.  This year's car should be decently under 500lbs.

Other than transmission problems, car still performed decently well.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote mnussbaum Quote  Post ReplyReply Direct Link To This Post Posted: Oct/09/2013 at 5:49pm
Originally posted by Soccerdan7 Soccerdan7 wrote:

I would say the average weights from the past few years are something like:

top 10 cars: <375 lb
competitive cars: 375-450 lb
out there to have fun cars: >450 lb

I believe 730 is probably the heaviest (or close to it) and 290 was the lightest. This is not to say that a 400 lb car won't win a race, but it is rarer that one does.

Those ranges are pretty accurate from what I have seen. There are always exceptions though. The cars we raced in 2012 and last year were around 450lb, they still finished 4th overall in Auburn and 3rd in Tennessee. A heavy car can do very well, but it's very rare. We should be a little lighter this year.
Matt Nussbaum
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Post Options Post Options   Thanks (0) Thanks(0)   Quote ErikHardy Quote  Post ReplyReply Direct Link To This Post Posted: Oct/10/2013 at 1:03pm
Target goal: Heavy enough where the driver almost feels invincible and light enough where two people can easily lift it. Getting a race ready sub 375 car can easily be accomplished without any exotic materials that can still be tough as nails.

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Post Options Post Options   Thanks (0) Thanks(0)   Quote collinskl1 Quote  Post ReplyReply Direct Link To This Post Posted: Oct/10/2013 at 2:19pm
The bottom line for car weight is that it all adds up.

Having a featherweight frame constructed of 4130 using minimal wall thickness tubing is all fine and good, but if your mounting brackets are all made of .125" plate and aren't optimized for their usage, all of that FEA on a tube structure is silly.  

Large amounts of weight can be saved in wheels and tires, and other components... and those rotate too!  Things like steering columns and steering wheels, seats, spill shields, body panels, floor, firewall, tow hooks, etc. are all areas that add up quickly and lots of teams can drop weight easily.

Also, there is a fine line between superlight and robust.  I'm not advocating tank cars, but I can justify a 400 pound car all day long if I know that the components won't break.  

The last point I like to make is, take into account driver weight.  Not all of us are 98 pound girls that make acceleration runs.  I don't care about a 300 pound car if it's driven by a 200 pound linebacker.
Kyle Collins
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Post Options Post Options   Thanks (0) Thanks(0)   Quote RLM Quote  Post ReplyReply Direct Link To This Post Posted: Oct/10/2013 at 3:08pm
Shocks are also an easy way to loose weight. our car was ~350lbs in rochester and we were running huge coilovers with fatty springs and we've bought Air shocks for this year and that alone is going to knock off ~15 lbs. 

We also Have a strict NO BURGER rule for the 2 weeks leading up to comp...with the exception of Whopper Wednesday at Burger King.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote zmpeck Quote  Post ReplyReply Direct Link To This Post Posted: Oct/10/2013 at 4:00pm

A healthy pre-race dump should never be ignored.

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Post Options Post Options   Thanks (0) Thanks(0)   Quote DomUL Quote  Post ReplyReply Direct Link To This Post Posted: Oct/10/2013 at 6:29pm
Originally posted by zmpeck zmpeck wrote:

A healthy pre-race dump should never be ignored.

 
And a good pee! 4 hours race is pretty long and peeing in the seat isn't really a cool option!
 
I'm surely not the best example but getting in shape few weeks/months before competition is really helpful, even more if you have only one driver for the whole endurance race. Even though you know the track more and more lap after lap, if you're not in good shape mistakes are more likely to happen and you'll probably slow down a tiny bit lap after lap and ending up pretty way slower than what the car can go.
 
You'll also have definetely more pain after an endurance if you're not physically ready ;)
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Post Options Post Options   Thanks (0) Thanks(0)   Quote cujdubs Quote  Post ReplyReply Direct Link To This Post Posted: Oct/10/2013 at 7:30pm
Depending on the steering in your car your shoulders definitely take a beating, if your steering is really heavy it might not be a bad idea to bulk up abit. Also if your gas pedal is harder to push like ours last year because of return problems and then your toe box gets packed with mud making it even worse then your legs can get pretty tired too.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote krowx Quote  Post ReplyReply Direct Link To This Post Posted: Oct/11/2013 at 12:47am
Rochester
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Karson
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Hitesh arora Quote  Post ReplyReply Direct Link To This Post Posted: Oct/10/2016 at 10:25am
can anyone tell where can the weight be reduced?
engine 58
gearbox 32
suspension 46
frame 50 (steel 4130) and aluminium composite sheet for firewall, floor pan and sides
wheel assembly, all four 55
steering 22
seat, safety 18
mountings, hardware 44

total = 325lbs 
with driver of 150lbs = 475lbs


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Post Options Post Options   Thanks (0) Thanks(0)   Quote Bettner12 Quote  Post ReplyReply Direct Link To This Post Posted: Oct/10/2016 at 11:29am
in the driver
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Post Options Post Options   Thanks (0) Thanks(0)   Quote RLM Quote  Post ReplyReply Direct Link To This Post Posted: Oct/11/2016 at 8:58am
Gearbox and steering for sure. 
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Post Options Post Options   Thanks (0) Thanks(0)   Quote ayushman123 Quote  Post ReplyReply Direct Link To This Post Posted: Oct/13/2016 at 1:58pm
Everything except engine.
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