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Old 02-24-2014, 05:25 PM   #1
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Project Coyote scares me

After watching all of the Grabber Boost and Project Coyote videos and seeing the final result, I am rather apprehensive about putting power down with sticky tires. Of course I couldn't help but find the irony in the video prior to stage 4 where you advertise the new axles for the '14s lol.

Do you have any insight as to what happened? I'm sure there are plenty of guys running much bigger numbers on stock axles, but watching one snap with 400whp and sticky tires makes one slightly nervous about track runs.
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Old 02-24-2014, 06:08 PM   #2
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Looked like the tire caught the side skirt which popped it and pulled the skirt off.
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Old 02-24-2014, 06:16 PM   #3
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It seemed to me that that would only happen if the axle broke, considering the first run went fine.
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Old 02-24-2014, 06:17 PM   #4
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It seemed to me that that would only happen if the axle broke, considering the first run went fine.
People run much more power on the 5.0s with slicks like that easily without breaking the axles. They are very stout, i don't believe it was the axle.
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Old 02-24-2014, 06:24 PM   #5
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Too much tire is infinitely more comforting, since mine is a daily and I'd probably shoot something if it broke an axle at near-stock power. I'd rather see them run on street tires, since not everyone has the coin for a drag wheel setup.
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Old 02-25-2014, 08:04 AM   #6
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Originally Posted by KSconvert View Post
After watching all of the Grabber Boost and Project Coyote videos and seeing the final result, I am rather apprehensive about putting power down with sticky tires. Of course I couldn't help but find the irony in the video prior to stage 4 where you advertise the new axles for the '14s lol.

Do you have any insight as to what happened? I'm sure there are plenty of guys running much bigger numbers on stock axles, but watching one snap with 400whp and sticky tires makes one slightly nervous about track runs.
Project Grabber Boost twisted an axle coming off of the line. This isn't necessarily common, but has happened to a lot of 2011+ GT's with full bolt-ons and a sticky tire at the track on a hot day.

I did the exact same thing on my 2011 GT with same mods and a Sticky tire. However, I felt the break right away and didn't continue to run the car. A lot of performance shops will actually recommend that you weld the axle tubes to the differential for extra support and to avoid this. Most of the high horsepower 5.0's that you see have the axles welded and or aftermarket axles.

I hope this helps clear things up.

-Dan
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Old 02-25-2014, 09:15 AM   #7
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Its been a problem going back to the 05 cars but is more problematic on the 11+ cars. If you expect to be hitting the track hard on sticky tires even on mostly stock power, its a good idea to have the axle tubes welded in place. I don't think most people realize that the axle tubes are only pressed in. The axles themselves didn't break, the tubes twisted. People have twisted theirs on a stock engine using sticky tires so it isn't just high hp applications.
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Old 02-26-2014, 08:05 AM   #8
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Its been a problem going back to the 05 cars but is more problematic on the 11+ cars. If you expect to be hitting the track hard on sticky tires even on mostly stock power, its a good idea to have the axle tubes welded in place. I don't think most people realize that the axle tubes are only pressed in. The axles themselves didn't break, the tubes twisted. People have twisted theirs on a stock engine using sticky tires so it isn't just high hp applications.
^ This is 100% correct. It's happened to stock cars on stock tires. The Axles are pressed in like Destination said. Having them welded is a good idea if you're going to be racing the car.

-Dan
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Old 02-26-2014, 08:18 AM   #9
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How much can one expect to pay for a shop to do this, roughly?
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Old 02-26-2014, 08:49 AM   #10
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How much can one expect to pay for a shop to do this, roughly?
Depends on the shop really. They'll probably charge you two to three hours labor for prepping the surface and then doing the welds.
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Old 02-26-2014, 08:50 AM   #11
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How much can one expect to pay for a shop to do this, roughly?
This shouldn't cost you much more than $100-150, I would assume. It's a very simple process and doesn't take more than a hour or so. It may be cheaper than that, I was just ball parking it off what I've seen.

Give a call to a few local shops who do some quality welding and they should be able to give you a solid quote!

-Dan
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Old 02-26-2014, 11:53 AM   #12
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Was project coyote running on a drag radial? I have also heard its a good idea to run a m6 car on a slick as it will wrinkle and absorb some of the initial drive train shock.
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Old 02-26-2014, 12:02 PM   #13
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If you do weld the axle tubes don't expect to be changing anything in there any time soon.
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Old 02-26-2014, 12:06 PM   #14
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If you do weld the axle tubes don't expect to be changing anything in there any time soon.
Could you elaborate a little bit more on "anything" for us noobs?
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Old 02-27-2014, 09:35 AM   #15
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Was project coyote running on a drag radial? I have also heard its a good idea to run a m6 car on a slick as it will wrinkle and absorb some of the initial drive train shock.
Yes, we were running on a drag radial. A slick will help absorb some of the initial shock but you can still twist an axle with a slick.

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Old 02-27-2014, 09:46 AM   #16
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Project Coyote scares me

I gotcha I have bee running consistent 8.1-8.2 1/8 mikes times with my bama tuned 13 m6. A buddy of mine has an extra set of slicks that he doesn't use so I am hoping to throw those on and see some 7's hopefully my axles stay where they are supposed to! Anyways how effective are the axle braces are they a waste? Would I be better served just having the axles welded in?
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Old 02-27-2014, 09:48 AM   #17
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Here's a couple time slips from a few weeks ago hoping to get the sixty foot down in to the 1.6 1.7 range is that feasible with slicks?
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Old 02-27-2014, 10:02 AM   #18
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Could you elaborate a little bit more on "anything" for us noobs?
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Old 02-27-2014, 10:08 AM   #19
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What negatives are there to welding your axles?
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Old 02-27-2014, 10:21 AM   #20
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If done correctly I wouldn't think any but done incorrectly I could foresee alignment issues and premature tire wear. I would really like to just do a brace if they are effective but never had any experience with either.
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Old 02-27-2014, 12:26 PM   #21
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I wanna know if there's any disadvantaged if done correctly..like would the ride quality suffer or anything like that!
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Old 02-27-2014, 12:27 PM   #22
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Also..I'm still waiting for stage 4 or project coyote..u guys gotta take out project boost that coyote has a lot left in it still! Haha.
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Old 03-12-2014, 12:08 PM   #23
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If you do weld the axle tubes don't expect to be changing anything in there any time soon.
?? i didnt think welding the tubes would have anthing to do with that.. You donr have to remove the tubes to change gears or bearrings.. or at least i never have.
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Old 03-12-2014, 12:11 PM   #24
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?? i didnt think welding the tubes would have anthing to do with that.. You donr have to remove the tubes to change gears or bearrings.. or at least i never have.
That's basically what I was thinking as well.
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Old 03-12-2014, 12:28 PM   #25
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Welding the axel housings won't hurt anything. U can still pull the shafts out, and access the carrier just fine. It is an external mod. I can't think of one single time I have heard anyone manually separating an axel tube on purpose!
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Old 03-13-2014, 12:31 PM   #26
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Welding the axel housings won't hurt anything. U can still pull the shafts out, and access the carrier just fine. It is an external mod. I can't think of one single time I have heard anyone manually separating an axel tube on purpose!
Troy
+1. This is correct! You can still change your gears and everything. Welding the axles is a good, cheap way of fixing the axle "issue". (I use that word lightly)

-Dan
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Old 03-14-2014, 03:49 PM   #27
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It is the things you might not think about that can get you in trouble. I have seen it many times, where experience cannot give you a clue of a problem. The hot new Camaro is putting a lot of power to the road, and has the largest, stickiest street tires they can find to put the power to the road. What they found is that the rims were actually spinning in the tires, putting the balance off. They tried gluing the tires on, but with no success. Apparently, they are having to rough up the bead on the rims to get them to hold. And this is a factory stock car. While there are limits to what we should do to our Mustangs and not expect problems, manufacturers are building them more reliable than ever, and the aftermarket industry is constantly finding solutions to potential problems.
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