Which is the better chassis - GC or GD? (was: Honest Opinion)

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Old Nov 29, 2006 | 01:11 PM
  #16  
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Originally Posted by Mr. Xevious
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i'm going to go get lunch... i'll drive the camaro in honor!
Old Nov 29, 2006 | 01:14 PM
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Originally Posted by T-cel89
I see, thats some harcore track ish.

Top stay on top in wrc and get ahead of the evo, what chassiss changes would you think they would need?
Its the same process for rallying. Strengthening the car is strengthening the car.

Here is a look at what Vermont Sports Car and SRTUSA do for their Rally America cars.

http://rally.subaru.com/2006_rallyprep.html
Old Nov 29, 2006 | 04:13 PM
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Originally Posted by T-cel89
I see, thats some harcore track ish.

Top stay on top in wrc and get ahead of the evo, what chassiss changes would you think they would need?
It's not the Evo Subaru is behind, it's the Renault/Citroen and the Focus. If Subaru wants to get back on top of WRC, they're gonna need a smaller chassis as a hatchback.
Old Nov 29, 2006 | 04:40 PM
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ill put in my input when i get home from work
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Last edited by svek; Feb 20, 2011 at 03:13 PM.
Old Nov 29, 2006 | 07:10 PM
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Originally Posted by GT35 STI
i'm going to go get lunch... i'll drive the camaro in honor!

I lied I drove the STi
Old Nov 29, 2006 | 08:54 PM
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Originally Posted by nKoan
Its the same process for rallying. Strengthening the car is strengthening the car.

Here is a look at what Vermont Sports Car and SRTUSA do for their Rally America cars.

http://rally.subaru.com/2006_rallyprep.html
Damn thats alot of welding! I did not know all that much work went into a rally car, i thought they just a bare bone version of stock with a roll cage. are there more steps taken in WRC?
Old Nov 29, 2006 | 08:55 PM
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Originally Posted by BAN SUVS
It's not the Evo Subaru is behind, it's the Renault/Citroen and the Focus. If Subaru wants to get back on top of WRC, they're gonna need a smaller chassis as a hatchback.
Yeah i agree. But behind the EVo i mean like in the road test's on TV and such, most i have seen favor the Evo.
Old Nov 29, 2006 | 09:09 PM
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Originally Posted by T-cel89
Damn thats alot of welding! I did not know all that much work went into a rally car, i thought they just a bare bone version of stock with a roll cage. are there more steps taken in WRC?
Yes, a lot more. That is actually a Group-N (or production) car, which is actually much closer to what you can buy in a dealership than a WRC car.

WRC cars are pretty much purpose built racers that share only minor pieces with the production models.
Old Nov 29, 2006 | 09:26 PM
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Originally Posted by T-cel89
Yeah i agree. But behind the EVo i mean like in the road test's on TV and such, most i have seen favor the Evo.
The Evo has several advantages over the Impreza, namely lower Polar Moment of the engine and gearbox and short manifold runners to the turbo. Those are the most significant anyway.

Oh, and the AYC. Can't forget miracle electronics.
Old Nov 30, 2006 | 12:20 PM
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Originally Posted by BAN SUVS
The Evo has several advantages over the Impreza, namely lower Polar Moment of the engine and gearbox and short manifold runners to the turbo. Those are the most significant anyway.

Oh, and the AYC. Can't forget miracle electronics.
Whats lower polar moment mean?
Old Nov 30, 2006 | 12:26 PM
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http://gtveloce.com/gtv/polar.html
Old Nov 30, 2006 | 12:59 PM
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Originally Posted by nKoan
Oh. So does a lower polar moment mean it handels better? Or responds quicker?
Old Nov 30, 2006 | 01:00 PM
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That rally car link is ****ing awesome!
Old Nov 30, 2006 | 02:57 PM
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Originally Posted by T-cel89
Oh. So does a lower polar moment mean it handels better? Or responds quicker?
Yes.

Basically, polar moment is a result of how far an object's mass in your car (your battery for instance) is from the car's center of gravity. If the battery is way out on the left front corner where stock location is, or back in the trunk at the right rear corner, it is far from the center of gravity and has a higher Polar Moment.

Imagine a 15 pound bowling ball on the floor. It's pretty easy to get it spinning around sitting loose on the floor. But now attach it to a 5' chain, and see how much energy it takes to make it do the same number of revolutions per minute.

You improve a car's polar moment when modding through a combination of weight reduction and relocation. You can either move the bowling ball back near the center of gravity to make it easy to rotate (battery under the passenger seat) , or you can replace it with a tennis ball on a 5' string (lightweight battery). Both are much easier to move rotationally than the bowling ball at 5'.
Old Dec 1, 2006 | 01:21 PM
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So because of where subaru decided to put certain things thats why it has a higher polar moment? Are they going to fix it, or is it one of those things that just have to be for production?



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