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12-30-2008, 11:59 PM | #1 | |
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I need your opinion on this; weight distribution vs. power?
This is a discution in our swic; weight distribution vs. power? any thoughts on this comment. Any input would be great.
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12-31-2008, 12:31 AM | #2 |
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Not sure I understand the question and the quoted text seems like confused ramblings... however, I'm pretty sure most racers would rather have 10% less weight than 10% more power. Sure you can keep adding power to a heavy car, but that doesn't help braking or handling.
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12-31-2008, 01:18 AM | #3 |
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Just saw this thread lol...
Heres the start of the discussion: http://forums.nasioc.com/forums/show....php?t=1665990 In a nut shell, the op and his friends feel adding weight to a track car is no big deal if you add more power. I'm making the argument that weight is the enemy on braking, handling, tires etc. and you don't need to keep adding power, if you shed weight and have a well balanced chassis. It all started around the compound s/c, turbo setup and my stating that adding a 30lb s/c over the front right wheel of a front heavy subaru, would have some affect on the cars abilities in a track environment and probably isn't an ideal road-race setup. And for what it's worth, I'm the only one in the discussion that actually competes in time trials and time attack, local track days. |
12-31-2008, 02:39 AM | #4 |
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12-31-2008, 08:41 AM | #5 |
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Raj (RE92) and I did a little lead/follow exercise at NHIS a couple years ago. Me leading in my 1600 pound, 90hp CRX racecar, him in his STi. Both ran track tires. I would lose him in the oval and through most turns.
Weight loss > weight distribution. jack |
12-31-2008, 10:30 AM | #6 |
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While more power can help acceleration recover from additional weight for a break-even, handling and braking will still suffer from the additional weight and power won't help recover those losses. On the other hand, having more weight and better weight distribution will do nothing to offset the acceleration hit, but will recover some of the handling and maybe braking losses from the additional weight. To say which variables are most valuable, you'd have to know the type of motorsports. I do autocross and so I rank weight distribution pretty highly and overall power/weight not as much. If I were circle track racing, I'd do all I could to boost power and reduce weight, because lap times there are most definitely a function of straight line speed.
Disclaimer, I drive a wagon. In my case, the Impreza is a very nose-heavy car, to the point that really can hurt its handling, with the whole engine in front of the front axles. Also, the Impreza wagons (at least the GC/GF generation, though I assume it hasn't changed too much) were not tremendously heavier than the coupes or sedans. Weight distribution versus overall weight is a tradeoff like any modification to a car. In my case, I'm glad to say I have a 55/45 weight distribution and should be moving that even further back this coming season, while hopefully losing some more weight as well (roll bar may prevent that). I admit that I'll never get quite down to the weight of the coupes in my class, but I think I can get within 50lbs and I think my better weight distribution can make up for that deficit. Oh yeah, and BoostInc sounds like an idiot. He may well know what he's talking about, but out of context, it's a rant and it's difficult to gauge. -N |
12-31-2008, 11:08 AM | #7 |
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boostinc must race on a track where there is minimal braking and turning.
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12-31-2008, 12:20 PM | #8 |
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12-31-2008, 12:52 PM | #9 |
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Why is no one arguing for more weight with no power adds?
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12-31-2008, 02:28 PM | #10 |
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12-31-2008, 02:40 PM | #11 |
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01-01-2009, 03:16 AM | #12 | |
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01-01-2009, 11:03 AM | #13 |
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To expand a bit on part of what NeilShelly was saying, the answer is it depends. Yes, in most situations less weight would yield the overall best lap time... But depending on the track and racing situation, more power could win. I'm sure that we've all seen situations where a car with a power advantage gaps the better handling/braking car on the straights, and blocks well enough to keep him behind in the twisty bits. If the "faster" car gets by the slower but more powerful car, he will then leave him behind.
George M |
01-01-2009, 12:36 PM | #14 | ||
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A perfect example of that, is the Speed GT Championship. The lighter and better handling Porsche, against the bigger and heavier (more HP) American V8's. In 2008 Randy Pobst in his Porsche, only won 3 races out of 9. But he won the championship, and the lighter and better handling Porsche won the manufacturer points. At the smaller tighter tracks: the Porsche, and the biggerr faster tracks: the big American V8's. One example; This is at Utah Fn Driver Car/Sponsor , Gap , Fst Time , Fst Spd 1 Tommy Archer/Dodge Viper -0.000 , 1:57.813 , 93.137 2 Brandon Davis/Ford Mustang -1.148 , 1:58.277 , 92.772 3 Andy Pilgrim/Cadillac CTS-V -2.227 , 1:58.074 , 92.931 4 Randy Pobst/Porsche 911 GT3 -4.375 , 1:58.258 , 92.787 Manufacturer Points Porsche 64 Ford 50 Cadillac 49 Dodge 40 Chevrolet 24 |
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01-01-2009, 01:10 PM | #15 |
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just play forza2 online...
it explains everything haha |
01-01-2009, 01:51 PM | #16 | |
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01-01-2009, 02:16 PM | #17 |
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01-01-2009, 11:47 PM | #18 | |
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01-02-2009, 01:33 PM | #19 | |
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01-02-2009, 06:52 PM | #20 |
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Not even sure its even in question, less weight,less stress on the entire car, adding power just makes it more complex, now your trying to get the power to the ground. Anytime adding power means adding weight no way, directional changes start to suffer etc.
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01-02-2009, 07:12 PM | #21 |
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Thanks. I dig my racin' wagon.
BTW, you did lighten your race car to the practical limits of your competition rules and your budget, right? I mean, aside from my beer gut, I can't see any practical purpose in lugging around dead weight. I'm just sayin'. |
01-02-2009, 08:22 PM | #22 |
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Me? yeah, I'm always looking to shed weight. Im at 2850 right now. That was my argument with them, they were for adding weight, i am not.
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01-02-2009, 11:11 PM | #23 |
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01-03-2009, 08:40 PM | #24 |
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01-03-2009, 11:23 PM | #25 |
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