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VIDEO of my launch help**** NEW VIDEO WITH N2O post #72

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Old 03-25-2013, 04:45 PM
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Default VIDEO of my launch help**** NEW VIDEO WITH N2O post #72

what can I do to help keep traction
current suspension
SFC,LCA,LCA relocation, torque arm(pinion angle -2*), torque arm relo crossmember( tq arm in middle hole)
stock springs and shocks
th400 with 9" nitrous converter
moser 12 bolt 3.73 gears
raceweight is roughly 3800#
28" mt et drag radials 16lbs pressure
it hooks out of hole then you can hear the tires break loose then I get out of it

any suggestions of what I can try or what should I buy next

thanks

Last edited by edub80; 07-30-2013 at 07:08 PM.
Old 03-25-2013, 06:07 PM
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I can't tell much from the video but the way you are describing it it sounds like your rear suspension is unloading. On the cheap you can try ce rear drag shocks and set them at 50/50. If that doesn't work try some drag shocks up front to keep the weight toward the rear a little longer.

You mentioned a nitrous converter. We're you spraying? Mine did the same thing when I tried to put the 100 shot to it. I had the progressive controller set to aggressive for the track and as it came in it just overwhelmed the tires.
Old 03-25-2013, 06:17 PM
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Originally Posted by 1320Chicken
I can't tell much from the video but the way you are describing it it sounds like your rear suspension is unloading. On the cheap you can try ce rear drag shocks and set them at 50/50. If that doesn't work try some drag shocks up front to keep the weight toward the rear a little longer.

You mentioned a nitrous converter. We're you spraying? Mine did the same thing when I tried to put the 100 shot to it. I had the progressive controller set to aggressive for the track and as it came in it just overwhelmed the tires.
yes as soon as it went wot it had the 150 shot come in... I have my nitrous coming in at 3000rpm so it launched on the nitrous.... hooked at first then about 10 foot out it blew the tires off
Old 03-25-2013, 08:53 PM
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Seems to be unloading the susp, and is your tq arm set at -2 deg or pos 2? Should be neg
Old 03-25-2013, 09:01 PM
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Originally Posted by krissoto
Seems to be unloading the susp, and is your tq arm set at -2 deg or pos 2? Should be neg
Yes it's -2.. what's some things to try to make it quit unloading?
Old 03-25-2013, 09:24 PM
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How old are the tires and what was the temperature when that pass was made? Sometimes its just tough to hook on drag radials in crap conditions.
Old 03-25-2013, 09:37 PM
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Originally Posted by TA1364
How old are the tires and what was the temperature when that pass was made? Sometimes its just tough to hook on drag radials in crap conditions.
Tires are less than 2 months old.. proly 250 miles on them... Track prep was great.... Temp was in the low 70s
Old 03-25-2013, 09:51 PM
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Either add more power or lower the to arm down a hole. It won't hit the tire as hard but will keep it loaded longer. If that doesn't work raise it and look at the sky.
Old 03-26-2013, 12:37 AM
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You really need some adjustable shocks, and raise your tire pressure a bit. What hole are you lowe control arms in?
Old 03-26-2013, 12:47 AM
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You can see the front end come down and then bounce back up before you let out of it. Put some adjustable struts up front and in the rear and that will help you out big time.
Old 03-26-2013, 02:01 AM
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Suspension is unloading.. Shocks.
Old 03-26-2013, 06:21 AM
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Another vote for shocks, mine did the same thing on the bottle
Old 03-26-2013, 07:41 AM
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Originally Posted by Grr
Either add more power or lower the to arm down a hole. It won't hit the tire as hard but will keep it loaded longer. If that doesn't work raise it and look at the sky.
well im not going to add anymore power for the time being but I will try playing with the tq arm and moving it around

Originally Posted by 03supercobra
You really need some adjustable shocks, and raise your tire pressure a bit. What hole are you lowe control arms in?
I used to run around 18lbs in the 275/40/17 drag radials and on these 28" I started at 20lbs and ive worked my way down to 16lbs... I have my lca in the 2nd hole from the bottom... I had them in the bottom hole but it just blew the tires off out of the hole

Originally Posted by itsslow98
You can see the front end come down and then bounce back up before you let out of it. Put some adjustable struts up front and in the rear and that will help you out big time.
what do you suggest for the front? I was thinking about ordering the CE 3-way and set them at 50/50 to start out

Originally Posted by lemons12
Suspension is unloading.. Shocks.
yeah im trying to decide on the fronts shocks? any input? I know I can get by with the CE 3-way on the back

Originally Posted by SuperSlow02
Another vote for shocks, mine did the same thing on the bottle
see on motor it seems fine but I only cut a 1.67 60ft on motor so I know there is more in the 60ft but I also need to cut weight out of this car
Old 03-26-2013, 09:02 AM
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I run strange SA up front. But I won't be of much help, I havnt ran my car since '11 and only made 2 passes on nitrous. But on my decent run my car picked the front up and ran out about 10-15ft sat them back down and started spinning again. A set of shocks will allow you to plant your tires harder and keep the weight back there. If you've got the cash, pick up front and rear adjustable. CEs are good for cheepos, but if you've got the budget just get DAs all around
Old 03-26-2013, 12:37 PM
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Qa1's SA all 4 corners is what I'm on. So far 1.40 60' on 150 out the gate. All about planting the tire and keeping it there. Shocks would help plant it better, also an anti roll bar would help keep your car from twisting.
Old 03-26-2013, 01:23 PM
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Originally Posted by krissoto
Qa1's SA all 4 corners is what I'm on. So far 1.40 60' on 150 out the gate. All about planting the tire and keeping it there. Shocks would help plant it better, also an anti roll bar would help keep your car from twisting.
see I was looking at the drag bar... seen a lot of good stuff about on here

just curious of what would be better for me right now... shocks or drag bar
Old 03-26-2013, 02:15 PM
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Shocks most def. u can put a set of drag bags in the springs for now to help with the anti roll, but might not be necessary.
Old 03-26-2013, 02:16 PM
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Watch the car from the rear and if its twisting a bar will help. Shocks would be my first thought
Old 03-26-2013, 02:27 PM
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Looks like its unloading when the front comes down really quick. I'd vote front shocks.
Old 03-26-2013, 02:35 PM
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Originally Posted by krissoto
Shocks most def. u can put a set of drag bags in the springs for now to help with the anti roll, but might not be necessary.
Originally Posted by SuperSlow02
Watch the car from the rear and if its twisting a bar will help. Shocks would be my first thought
it is twisting... its not doing the g body twist but only the driver wheel is coming off the ground so it is twisting a good bit

Originally Posted by TA1364
Looks like its unloading when the front comes down really quick. I'd vote front shocks.
looks like I will be investing in some shocks


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