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Author Topic:   Rear end width?
CA Dirt guy
Dirt Roller

Total posts: 11
posted January 22, 2005 01:07 PM  
For a 77 Camaro, taking into account the ability to add wheel spacers and use wheels with offsets for adjustablity, what track width (axle flange to flange) is best for dirt?

Istock66
unregistered Total posts: 11
posted January 22, 2005 01:30 PM           send a private message to CA Dirt guy   Edit/Delete Message   Reply w/QuoteBBBBBB
61.5

mudd on the tires
Dirt Full Roller

Total posts: 42
posted January 22, 2005 09:41 PM  
60 inch

dirt_freek
Dirt Full Roller

Total posts: 29
posted January 22, 2005 10:06 PM  
with the camero front end I have found that the best with for the rear end would be 62" now if you were to run a metric car then you would be looking for a 60" with or without the flexy kit I hope that this will help you in searching

you can find a 62" rear in a ford bronco

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real racers do it in the dirt

hobby10k
Dirt Freak

Total posts: 226
posted January 23, 2005 04:37 AM  
see this is what I have been wondering also. I was told 60" is the best for a camero. now I was asking this because I want to get a floater rear end, and want to know the best size to get.
is there actually a size that would work best for a camero or is it just peoples opinions?
what does running a narrower rear end do exatly if running a 60" vs a 61.5" rear?

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LIVE RACING, WHAT ELSE IT THERE?

Istock66
unregistered Total posts: 226
posted January 23, 2005 07:43 AM           send a private message to hobby10k   Edit/Delete Message   Reply w/QuoteBBBBBB
I ran a 60 last year because I thought I would need more body roll to transfer wt to the right side.

I had way way more than needed, so I pulled the 60 floater and put in a 61.5 and even put long studs in with 1 inch spacers all the way around to widen the track to the max allowed.

my cell is up high against the trunk, battery and lead is all also up above the frame rails in the trunk about 7 inches.

my car is square with 3 in backspace wheels all around, 1 inch spacers I can pull out all around, and I do have 5 inch backspace beadlocks for the rr on dry slick tracks. So essentially I run 2 in wheels all around and can pull the spacer to make them like running 3s.

mudd on the tires
Dirt Full Roller

Total posts: 42
posted January 23, 2005 09:49 AM  
if you have a 62 in a camaro what size backspace wheels does everybody run? i have a 60 in mine and run 2 inch backspace wheels and the rear is just a little wider then the front. on a tacky track i have to put a 3/4 inch spacer on the rr to keep the tire from rubbing the shock mount, and i only have 1.5 inch spring spacers on mine.


but my ? is why do you want your rear end wider then your front????

racin78p
Dirt Freak

Total posts: 333
posted January 27, 2005 11:21 AM  
The width of your rear housing depends (mostly) on the track you run at. Do you need the car to be more "square" (equal front and rear track widths)? On big high banked tracks (where you don't lose much speed in the corners) a wider housing is, or can be better. I'm talking about bigger than 3/8 tracks with high banks! On tighter tracks a narrower rear can be more advantagious because it can help put more steer into the car for corner entry and exit acceleration. BUT ONCE AGAIN, here is the other thing you must consider. Do you run a GM metric, Camaro or Nova? Each car has a different front track width so that will play a big role in rear width. Istock66 has a wider front and the 61.5" rear he runs now is obviously the ticket for him. It "fits" his track/car/driving style better. On my metric, I run a 60". I even have a 56" that came with the car, but because of the track size and conditions and my driving style where I race the 56" would kill my cars performance in the corners. I need the extra width for a high banked and big track that is almost always dry slick. So, my suggestions as to the rear width? 1. Know your front tracking width.
2. Know the track size where you will run at the MOST.
3. Then decide what will be the best fit for you and your car.

I would put a 60" under a GM metric and work with wheel off-sets to get the car hooking up (side bite and forward bite), on a big/high banked track; less width on a tighter track/less banking.

I would put a 61.5" under a Camaro and work with wheel off-sets, for a big track/high banked; less rear width for a tight track/less banking.

I would put anything bigger than 61.5" under a Bradley or Abrams tank. Unless it came complete and FREE!!! Then I would get it shortened maybe? Okay, enough. Understand this post is just my opinion, formed from watching and learning from many race car buddies trials and errors including mine. Race on.

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racin78p
if it ain't fun, then don't run

racin78p
Dirt Freak

Total posts: 333
posted January 27, 2005 11:49 AM  
Sorry, forgot to add why a wider rear can be better than a narrower. An equal tracking width front and rear car (a "squared" car) can help the car on a big/high banked track by not allowing it to lose it's speed in the corners because the car has become unstable from the tracking widths not being equal. It's all a balancing act. Wider widths can make the car more stable on big tracks. A narrower rear can also make the car more stable on SMALLER tracks, because the car is turning quicker and faster. That same narrow rear width on a big track will make it dance on the straights as a minimum. The wider rear on a small track will make the car drive or steer like a chuck wagon in the corners. Push like crazy. Confused now?

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racin78p
if it ain't fun, then don't run

    

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