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Drag Racing weak points

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Drag Racing weak points
Old April 6th, 2015, 01:49 PM   #1
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Drag Racing weak points

I finally took my car to the track this weekend and had a blast. I didn't really push it real hard as I'm a rookie at best. Just mainly wanted to see what its all about. I'd like to do it again. I was wondering what are some of the known weak points in this car that would tend to break drag racing? 97 GTS Headers/exhaust and Roe Tune.
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Old April 6th, 2015, 01:50 PM   #2
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Half Shafts.

Keep your tire pressures low to minimize wheel hop. That way they will last longer.

Last edited by sundiego; April 6th, 2015 at 02:07 PM.
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Old April 6th, 2015, 01:51 PM   #3
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X2 for half shafts, followed by your bank account!
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Old April 6th, 2015, 05:03 PM   #4
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I suspected it might be somewhere in the drive train area. Where do you order these half shafts from? As in when they break. I'd like to really beef up any weakness of the car. I doubt I"ll ever get into drag racing big time, however I'd like to have a car that I can take to the track at random and drive it home afterwards without worry about too much breaking during the fun. Even if the parts are overkill. If I have a parts list/price listing I can justify it more. "I'm going out today knowing that the (insert part here) Half shafts are the most likely to break today, this will cost me X". This way I know what I'm getting into before the heartache happens.
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Old April 6th, 2015, 06:12 PM   #5
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Call Jon B up and see what he suggests:

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Put stronger half shafts in now, and save the old ones. If you are going to do a lot of it, spare trans in the garage. A real lot, then a spare diff in the garage.
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Old April 6th, 2015, 06:37 PM   #6
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If u run stock tires, not drag radials, u will have no problem with half shafts. Unless u have severe wheel hop.
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Old April 6th, 2015, 06:40 PM   #7
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If u run stock tires, not drag radials, u will have no problem with half shafts. Unless u have severe wheel hop.
I've done few hundred passes in a Viper. He's done far more than me.
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Old April 6th, 2015, 06:43 PM   #8
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If u run stock tires, not drag radials, u will have no problem with half shafts. Unless u have severe wheel hop.
Agreed, just bolt ons, and street tires, stay with stock. You can get Unitrax halfshafts for about $800-$900. Or I can sell you a set of stockers you can use to replace a broken one for $150 each. A spare Diff might be nice, but if you go that route, might as well stick in 3.55 gears and keep your stock rearend as a backup. You will have a lot more fun driving around with the 3.55s.

One thing that contributes to the wheel hop is worn/old engine/trans mounts. They are cheap and fun to replace.
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Old April 6th, 2015, 06:54 PM   #9
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So slicks and a big shot of nitrous might have caused premature driveline wear?
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Old April 6th, 2015, 07:01 PM   #10
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Thanks guys, I may be putting the wagon before the horse here. It was literally my first time at the drag strip this weekend. Just bolt ons and street tires. I didnt run any good times at all, but had a ton of fun. Which got me thinking, I want to do it more, however have to take a step back and ask the question of what's going to break first as dragging the car puts more stress on those weak points than normal cruising. I'm not opposed to going overboard and spending the money on the Unitrax shafts. I have a spare set of wheels I thought about going a drag tire on. Perhaps the half shafts would be a good idea before the tires.
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Old April 6th, 2015, 07:06 PM   #11
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Think of your driveline as a unit, with the weakest link becomes the fuse. If the tires' traction is the weak link, all that happens is they spin. If you put on sticky tires, then other parts of the driveline become the fuse, and they cost money. You are better to get quicker on stock tires.
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Old April 6th, 2015, 07:13 PM   #12
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Good Point, I would bet I could take at least a half second off maybe a full second if I learn to drive properly.
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Old April 6th, 2015, 07:19 PM   #13
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What times did you run? What was your 60' times?
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Old April 6th, 2015, 07:36 PM   #14
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Dont ask me that! It was my first time ever on a strip. I ran a 13.29 @ 109.97 MPH. 60 - 2.27, 330 - 5.95, 1/8 - 8.81 1000 - 11.24.
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Old April 6th, 2015, 08:03 PM   #15
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Your 97' model also has the smaller 3/8 ring gear bolts which have been known to sheer off. Mopar went with bigger 7/16 ring gear bolts to cure this on later models. Stay away from the drag radials/slicks and don't let the wheel hop get carried away and everything might live a long time. Then again it might not. Racing breaks shit, always has and always will.
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Old April 8th, 2015, 02:53 PM   #16
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Well looks like you are sure to get better and better. I'd like to hit the track in my Viper.

Looks like you could work on your launch and after that its just nailing your redline shift and you will shave over a second off IMO.

Weak point... no one has mentioned... clutch, depending on age/miles.
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Old April 8th, 2015, 03:42 PM   #17
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Dont ask me that! It was my first time ever on a strip. I ran a 13.29 @ 109.97 MPH. 60 - 2.27, 330 - 5.95, 1/8 - 8.81 1000 - 11.24.
That is not too bad. You are about a 1 second off the average time for a good driver. The way to become a good driver is..................


Practice, practice, practice.
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Old April 12th, 2015, 10:45 PM   #18
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Anyone know what kind of 60' times you can pull on stock axles with a full soft sidewall slick? 28x10x16....
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Old April 13th, 2015, 12:54 PM   #19
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Question fellas, the half shafts you speak of. Are they hard to install? Would I have to go to a drivetrain specialty shop to install them? I know for sure I can't do them.
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