R/C Tech Forums

Go Back   R/C Tech Forums > General Forums > Nitro Off-Road

Reply
 
Thread Tools Search this Thread
Old 03-05-2010, 01:11 AM   #16
JQ
Tech Master
 
Join Date: Jan 2008
Posts: 1,588
Default

I cant think of a form of motorsport where the cars werent always as light as possible. That means something.....

The reason some RC racers prefer a heavier car, is that the set up they run, is suitable for a heavier car, not because a heavier car is better. The tyres, foams, shocks, and suspension geometry need to be changed to suit a lighter car.
JQ is offline   Reply With Quote
Old 03-05-2010, 07:15 AM   #17
Tech Apprentice
 
Join Date: Feb 2010
Location: WV
Posts: 52
Default

lol this thread is funny.....
a lighter car is better and faster and more reactive and gets better fuel mileage....if you are faster with a heavier car then sorry but your not a very good driver....or at least compared to the best of the best.
But this thread wasnt even discussing driver so rule that out.
Most guys that drive can move the car around in the air like most of the pros who do that and they do it with a lighter car because its easier to do it.
if heavier cars were the ticket then all the pros would have aftermarket parts on the car to make them heavier not lighter.
fast guys want a lighter car medium to bashers want a heavier car cause on most tracks its easier to drive....but not faster.
I think someone posted correctly that a limit has to be in order just due to the expense that it would create if everyone had to have so much extra money in a car to be fast.
and I dont think it TOTALLY it to have the lightest car but also where the weight is. when you get down in the 7.2-7.5 range its also as important to have the weight low and centerline.
just an FYI I have weighed several buggies and no matter what they say on the box these are race ready with the same tires
losi--7 pounds 4 ounces
AE--7 pounds 9 ounces
Mugen (my own car) TI screws 7 pounds 2 ounces
Hyper 9.5--7 pounds 5 ounces
Xray 808 (2009) 7 pounds 1ounces
Odonnell--8 pounds 3 ounces
serpent--7pounds 4 ounces
Kyosho--7 pounds 10 ounces
Tebos car..lol I wont even post
these weights will carry with different tires and engines but no more than an ounce or two from what was in them

in my personal opinion the only buggies that can be optioned out to be under weight are the Losi,Mugen and Xray,,,
sorry I dont have any stats on any of the weird cars they run in some countries
TheTopic is offline   Reply With Quote
Old 03-05-2010, 07:41 AM   #18
Tech Elite
 
xlgraphicspro's Avatar
 
Join Date: Dec 2004
Location: Omaha Nebraska
Posts: 2,052
Trader Rating: 3 (100%+)
Default

I already knew the Xray was one of the lightest cars, but I had no Idea the OD car was such a Hog?
__________________
TeamXray RCAmerica Hudy Xlgraphicspro Paint/ Impulse-Rc Clutch shoes.
Xray XB 808 O.S. Speed Or Ninja JX
xlgraphicspro is offline   Reply With Quote
Old 03-05-2010, 07:53 AM   #19
Tech Apprentice
 
Join Date: Feb 2010
Location: WV
Posts: 52
Default

yeah the x ray is light
most of those cars is with the needed hop ups installed, except the losi it was pretty much stock, I have seen an x ray with many hop ups go 6 pounds 9 ounces and I have seen a mugen go about the same, I have TI upper screw kit on my mugen and its pretty light.
the lighter cars are also more sensitive to set up changes but in reality thats what you want
TheTopic is offline   Reply With Quote
Old 03-05-2010, 08:00 AM   #20
JQ
Tech Master
 
Join Date: Jan 2008
Posts: 1,588
Default

What about Tebos car?
JQ is offline   Reply With Quote
Old 03-05-2010, 08:00 AM   #21
Tech Regular
 
Join Date: Feb 2010
Posts: 303
Trader Rating: 1 (100%+)
Default

Isnt there a MAX and MIN weight, I know guys that puts weights on there cars..

Its just a rule made to make sure the drive has the advantage or disadvantage instead of the actual car
geejay is offline   Reply With Quote
Old 03-05-2010, 11:32 AM   #22
Tech Master
 
Join Date: Dec 2009
Location: Quinby south Carolina
Posts: 1,158
Trader Rating: 20 (100%+)
Default

Quote:
Originally Posted by TheTopic View Post
lol this thread is funny.....
a lighter car is better and faster and more reactive and gets better fuel mileage....if you are faster with a heavier car then sorry but your not a very good driver....or at least compared to the best of the best.
But this thread wasnt even discussing driver so rule that out.
Most guys that drive can move the car around in the air like most of the pros who do that and they do it with a lighter car because its easier to do it.
if heavier cars were the ticket then all the pros would have aftermarket parts on the car to make them heavier not lighter.
fast guys want a lighter car medium to bashers want a heavier car cause on most tracks its easier to drive....but not faster.
I think someone posted correctly that a limit has to be in order just due to the expense that it would create if everyone had to have so much extra money in a car to be fast.
and I dont think it TOTALLY it to have the lightest car but also where the weight is. when you get down in the 7.2-7.5 range its also as important to have the weight low and centerline.
just an FYI I have weighed several buggies and no matter what they say on the box these are race ready with the same tires
losi--7 pounds 4 ounces
AE--7 pounds 9 ounces
Mugen (my own car) TI screws 7 pounds 2 ounces
Hyper 9.5--7 pounds 5 ounces
Xray 808 (2009) 7 pounds 1ounces
Odonnell--8 pounds 3 ounces
serpent--7pounds 4 ounces
Kyosho--7 pounds 10 ounces
Tebos car..lol I wont even post
these weights will carry with different tires and engines but no more than an ounce or two from what was in them

in my personal opinion the only buggies that can be optioned out to be under weight are the Losi,Mugen and Xray,,,
sorry I dont have any stats on any of the weird cars they run in some countries

Thanks for ur plug and I'm right with u on what u said above, a good driver will always take the lighter car it's just the way it is. If his setup doesn't work then he will change the setup. U guys all say that the cars won't handle good being that light cause there setup for heavier cars well set them up for a light car. I think everyone maybe thinks I'm talking about ppl that drive 2-3 times a month but I'm not I'm talking bout good drivers that r wanting to b the next Cavalieri that arnt that speed yet like intermediate class, I think they will lie the lighter car because there looking for the advantage. I was surprized at how light the serpent is, and I bet tebo's car us way under the weight limit because he can then add the weight where he feels it should be. I know a pro driver really well and even he said quote ' I wish I could practice with my full blown race car cause it's 10 times better to drive (I ask why, he says) because everything is titanium, towers bolts shock shafts he said down to the little things were all lightened. I even got to see his ifmar car when he won the worlds it was a lil outdated but still was light as hell.
Matt Piva is offline   Reply With Quote
Old 03-05-2010, 11:45 AM   #23
Tech Prophet
 
tc5 man's Avatar
 
Join Date: Oct 2007
Location: levittown pa
Posts: 16,873
Default

yea but most club racers can afford, all titanuim parts i cant ethier really so i just deal with the, weight of my eight buggy. makes me a good enough driver
tc5 man is online now   Reply With Quote
Old 03-05-2010, 01:06 PM   #24
am
Tech Master
 
Join Date: Jul 2004
Location: Norway
Posts: 1,603
Default

Well,

If you take a given car (as that is my starting point) and make it as light as possible, it will not always perform best when it is the lightest, so i dissagree abaout that.

You take something more into the equation and that is to redesign the car and the suspension geometry to make it be better. What you actually have done is to make a new car. Ofcaurse it then will be faster. Then i agree, but to take one car that is already designed and make it a s light as it possible can be, to think it might be alot better, does not work.

If you do make a car as light as possible with that goal in mind, you would come out with a completly different car, geometry wise, and weight distribution wise.

I think even you agree to this Joseph.

Another example of this is that all the big guns runnign B44`s put more weight on their cars so it will perform the same with Lipo batteries as they did with Nimhi batteries.

The Durango is REALLY heavy, but it goes for beeing one of the absolut best cars in the 10`s scale class, and there would not be a problem making that car alot lighter if they thought that would be the best aproach. Rc offroad is not like any other motorsports.

Anders
am is offline   Reply With Quote
Old 03-05-2010, 01:36 PM   #25
Tech Master
 
Black's Avatar
 
Join Date: Mar 2006
Location: Orlando
Posts: 1,176
Trader Rating: 18 (100%+)
Send a message via AIM to Black
Default

As mentioned before, weight is something that the sanctioning body as put in place to keep things on a semi-level playing field while also keeping costs in mind.

As far as everyone stating that a lighter car is better.... I am gonna call shananigans on that. To back myself up on that, everyone wants the nastiest motor available. With that being said almost every buggy out there is vastly overpowered, thus making the cars hard to control when you are strapped up running at the highest levels of competition. With the cars having so much extra power due to the increases in today's technology a heavier car is desired. Thus proving my point that heavier cars are better equipped to handle the excessive power that we have mounted up come race day.

If you think I am wrong, GREAT. However, look back in history when everyone wanted the lightest 1/10th buggy around, then once we all figured out that a lighter car was not the easiest thing to drive we simply freed up the drivetrain even more and added weights to the back pods of our buggies.
__________________
JConcepts/Werks Racing Engines/Ironman Bearings/PowerMaster Fuel/VP Racing
Black is offline   Reply With Quote
Old 03-05-2010, 05:50 PM   #26
Tech Adept
 
Join Date: Oct 2008
Posts: 206
Default

So what is it light buggy or heavy buggy which is better, lol, I love coming here for a laugh.
__________________
Tekin - The ultimate trophy hunters choice!!!
FactoryTeam08 is offline   Reply With Quote
Old 03-05-2010, 07:33 PM   #27
Tech Apprentice
 
Join Date: Feb 2010
Location: WV
Posts: 52
Default

Quote:
Originally Posted by FactoryTeam08 View Post
So what is it light buggy or heavy buggy which is better, lol, I love coming here for a laugh.
For pro guys a light buggy and for sportsman drivers a heavy buggy, pretty much can argue all day but when it comes down to it.... That's it
TheTopic is offline   Reply With Quote
Old 03-05-2010, 09:44 PM   #28
Tech Rookie
 
Join Date: Sep 2009
Posts: 17
Default This should have to happen.....

Amezcua had to add weight to his car at the nitro challenge......
BITTY123 is offline   Reply With Quote
Old 03-05-2010, 11:11 PM   #29
Tech Initiate
 
turner2's Avatar
 
Join Date: Mar 2009
Location: Kingman, AZ
Posts: 44
Trader Rating: 2 (100%+)
Default

Quote:
Originally Posted by am View Post
Well,

If you take a given car (as that is my starting point) and make it as light as possible, it will not always perform best when it is the lightest, so i dissagree abaout that.

You take something more into the equation and that is to redesign the car and the suspension geometry to make it be better. What you actually have done is to make a new car. Ofcaurse it then will be faster. Then i agree, but to take one car that is already designed and make it a s light as it possible can be, to think it might be alot better, does not work.

If you do make a car as light as possible with that goal in mind, you would come out with a completly different car, geometry wise, and weight distribution wise.
well said.
__________________
TLR 22 2.0
TLR 22SCT
Powered by Visa
Pike Motorsports RC
turner2 is offline   Reply With Quote
Old 03-06-2010, 10:23 AM   #30
Tech Regular
 
T. Thomas's Avatar
 
Join Date: Mar 2005
Posts: 380
Default

When Lipo batteries first came out, Rick Howart had Ryan Cavaleri run some(TEST). They found the 2wd mod buggy was extremely hard to control and prefered the weight to be where it was with NIMH batteries.

Comparing our toy cars to full size cars is like apple to oranges. Full size cars(F1 for instance) wants their cars to be light as possible due to latteral weight transfer in coreners yet the faster they go the more DOWNFORCE they create to gain traction through the wing and aerodynamics they add to the cars. This downforce does not affect lateral weight transfer because it only pushed DOWN on a car and is only affected by the speed of the car. In RC cars(offroad more than any other form of RC) you can only add so much downforce through wings and aerodynamics. Therefor you must add weight to the vehicle to help gain tractiion. There is a fine line to how a person wants their vehicle to handle, fast in corners is a lighter vehicle, more traction is a heavier vehicle. Acceleration is more affected by the drivetrain being lighter than the vehicle when you compare a 7 lb 4 oz car to a 7 lb 6 oz car. If that 2 oz difference is in the drive train the lighter car will accelerate faster. If the 2 oz is on the centerline fot he vehicle mounted tothe cahssis, they will accelerate virtually the same.

To those who say set-up needs to change when going lighter, yes it does but the ability to fine tune is also not as easy with RC cars as it is with full size cars. They(full size cars) change their shock oils by 50 cts has a lot less affect than an RC car changing its oil by 50 cts. I am not disputing set-ups have to change, just adjusting to get the same handling affect is not as easy.

I am no engineer so terms might not be exact, but I feel that most will understand what I am trying to say.
T. Thomas is offline   Reply With Quote
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
Lowering the weight of Touring Cars that use lipo TheCoolCanFanMan Electric On-Road 141 02-27-2016 10:48 PM
ROAR 1/12 weight limit miller tyme Electric On-Road 171 01-09-2009 03:14 PM
Lipo vs Nimh Racing and Minimum Weight yyhayyim Electric On-Road 91 09-20-2007 04:56 PM



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are Off



All times are GMT -7. It is currently 05:06 PM.


Powered By: vBulletin v3.9.2.1
Privacy Policy | Terms of Use | Advertise Content © 2001-2011 RCTech.net