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60' still stinks #1779373
03/14/15 02:51 PM
03/14/15 02:51 PM
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CheddarHead till October
weedlayer Offline OP
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http://youtu.be/pKFVjucUHHY

changed to double adjustable shocks, original anti-squat was 84.3%, now at 181.2%. 60' just does not get any better. 1.48 - 1.51. Should be low 1.4 easy.

incrementals are all in line for 10.2's at 134 except the 60'




Re: 60' still stinks [Re: weedlayer] #1779374
03/14/15 03:05 PM
03/14/15 03:05 PM
Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY Offline
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I couldnt load the vid.. but is it spinning.. what
is the front of the car doing.. and is the back lifting
up or staying pretty even with the slick

Re: 60' still stinks [Re: MR_P_BODY] #1779375
03/14/15 03:25 PM
03/14/15 03:25 PM
Joined: May 2005
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NC, USA
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davenc Offline
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I'm no expert, but it doesn't sound like the motor comes cleanly off the two-step. Possible carb issue?

Re: 60' still stinks [Re: davenc] #1779376
03/14/15 03:35 PM
03/14/15 03:35 PM
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Queens, New York
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Harley Offline
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The front of the car looks very stiff.

Re: 60' still stinks [Re: Harley] #1779377
03/14/15 04:11 PM
03/14/15 04:11 PM
Joined: Jan 2003
Posts: 642
New Jersey
Craig Offline
mopar
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New Jersey
What rear shocks and what setting? In the vid, looks like no rise in back which you should have with that 4-link setting. Looks like rear shocks need the extension loosened.


67 Dart, 426 Hemi, 9.23/145mph, 3400lbs, footbraked, owned since 1982
Re: 60' still stinks [Re: Craig] #1779378
03/14/15 04:24 PM
03/14/15 04:24 PM
Joined: Jan 2003
Posts: 32,394
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Quicktree Offline
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what converter?

Re: 60' still stinks [Re: Quicktree] #1779379
03/14/15 07:50 PM
03/14/15 07:50 PM
Joined: Jan 2003
Posts: 2,872
CheddarHead till October
weedlayer Offline OP
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This is the first time I saw a video also. I was too low rpm off the 2 step. Everything looks stiff. No rise front or rear.
Converter was good for a 1.405 with Caltracs and leafs, normally 1.450. 8" PTC built from dyno sheets.

Front is Bob's profab with single adjustable QA1 set all the way to minus.

Rear is QA1 double adjustable with "R" (rebound) set all the way to minus.

If minus is not loose, I guess I'm bassackwards on the shocks.

Re: 60' still stinks [Re: weedlayer] #1779380
03/14/15 07:55 PM
03/14/15 07:55 PM
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Quicktree Offline
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you may not have enough power to work the new chassis. I ran into that with my challenger. it had very little movement no matter what I tried. you are going to need around 5600 on the converter. I was around 1.48s 60'also converter was way to tight for the power I was making.

Re: 60' still stinks [Re: weedlayer] #1779381
03/14/15 08:19 PM
03/14/15 08:19 PM
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Posts: 10,001
Frostbitefalls MN (Rocky&Bullw...
gregsdart Offline
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What is the most travel you can get out of the front end? Rear? I would start full lose, max travel on both ends, with a video looking at the rear from an angle, hopefully including the front tires as well. It looks like the rear hit, stuck for an instant, then spun, so it might be too aggressive at this point, with the front too stiff as well.
Any idea of how much stall the converter has , and where is your torque peak?.


8..603 156 mph best, 2905 lbs 549, indy 572-13, alky
Re: 60' still stinks [Re: weedlayer] #1779382
03/14/15 08:38 PM
03/14/15 08:38 PM
Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY Offline
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What rpm are you leaving at.. might want to try a LOT
more to plant the tire.. I have the same issue if I
dont leave hard

Re: 60' still stinks [Re: MR_P_BODY] #1779383
03/14/15 08:46 PM
03/14/15 08:46 PM
Joined: Aug 2004
Posts: 2,128
sweden
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sshemi Offline
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Looks like front susp tops out too fast.

Re: 60' still stinks [Re: sshemi] #1779384
03/14/15 08:54 PM
03/14/15 08:54 PM
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Posts: 438
Great Lakes Region
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abodiesonly1 Offline
mopar
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Great Lakes Region
Sounded like a slight bog coming off the 2 step as well as no flash....

Vert sounds tight

Re: 60' still stinks [Re: abodiesonly1] #1779385
03/14/15 09:07 PM
03/14/15 09:07 PM
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Quicktree Offline
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here's a video of mine reacting the same way. my wife took the video so bear with me.I won that pedal fest on the top end by the way

http://s579.photobucket.com/user/Quicktree09/media/Challenger/SDC11213.mp4.html?sort=3&o=1

Re: 60' still stinks [Re: Quicktree] #1779386
03/14/15 09:25 PM
03/14/15 09:25 PM
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Portage,michigan
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B3422W5 Offline
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Those huge rear tires eat up a lot of steam. Bet it would 60 foot better with way less under it.


69 Dart GTS A4 Silver All steel, flat factory hood, 3360race weight
418 BPE factory replacement headed stroker, 565 lift solid cam
Best so far, 10.40 @127 1/4
1.41 best 60 foot
6.60 at 103.90 1/8

Re: 60' still stinks [Re: weedlayer] #1779387
03/14/15 09:29 PM
03/14/15 09:29 PM
Joined: Aug 2003
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Bend,OR USA
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Cab_Burge Offline
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It looks like and sounds like it porpoised on the starting line, front and back started to rise and then the back slips back down, try stiffening up the compression, not the extension, on the rear shocks only. Take one of each (front and rear)shocks off and experiment with the settings on a bench so you know which adjustments does what to your shocks One other thing when you jack the car up to remove the shocks, check to make sure you have enough travel on both ends with the suspension fully extended down that the shocks have more travel left in them, not held up tight enough to hold the suspension up


Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
Re: 60' still stinks [Re: B3422W5] #1779388
03/14/15 10:03 PM
03/14/15 10:03 PM
Joined: Jan 2003
Posts: 32,394
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Quicktree Offline
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Quote:

Those huge rear tires eat up a lot of steam. Bet it would 60 foot better with way less under it.


yes they do, but it doesn't spin

Re: 60' still stinks [Re: Cab_Burge] #1779389
03/14/15 10:06 PM
03/14/15 10:06 PM
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Quote:

It looks like and sounds like it porpoised on the starting line, front and back started to rise and then the back slips back down, try stiffening up the compression, not the extension, on the rear shocks only. Take one of each (front and rear)shocks off and experiment with the settings on a bench so you know which adjustments does what to your shocks One other thing when you jack the car up to remove the shocks, check to make sure you have enough travel on both ends with the suspension fully extended down that the shocks have more travel left in them, not held up tight enough to hold the suspension up


I didn't see or hear that at all sounded more like a tight converter to me.

Re: 60' still stinks [Re: Quicktree] #1779390
03/14/15 11:54 PM
03/14/15 11:54 PM
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Canton, Ohio
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Sport440 Offline
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Oh, it definitely spins from what I saw, even with those big heavy meats.

The front moves very little as does the back. the front also appears limited in its travel. It may just be it drops when he loses traction.

I think his rear axel isn't hitting hard enough or evenly enough. Not sure about the front, since hes losing traction.

Re: 60' still stinks [Re: Sport440] #1779391
03/15/15 12:04 AM
03/15/15 12:04 AM
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Great Lakes Region
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abodiesonly1 Offline
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Its dead hooking and bogging ever so slightly, but you can hear it.

Converter doesn't flash in the slightest.

Re: 60' still stinks [Re: abodiesonly1] #1779392
03/15/15 12:55 AM
03/15/15 12:55 AM
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Canton, Ohio
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Sport440 Offline
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Quote:

Its dead hooking and bogging ever so slightly, but you can hear it.

Converter doesn't flash in the slightest.






I disagree, from the Vid, its not dead hooking. Sure, its not the greatest vid.

Its hard to tell by looking at the slick alone, but if you focus on the rim, it spins about a revolution and a half or so. Im assuming the slick is too, hard to see it.

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