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Rear end rotation #2375400
09/23/17 11:32 AM
09/23/17 11:32 AM
Joined: Aug 2006
Posts: 1,613
Deerfield, Ohio
70dusterjohn Offline OP
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70dusterjohn  Offline OP
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Deerfield, Ohio
Here is a link to my run last night along with this I had so many issues . But trying to see what you guys see with cal-tracs.

https://youtu.be/TGhwMNiPMMQ

Re: Rear end rotation [Re: 70dusterjohn] #2375405
09/23/17 11:41 AM
09/23/17 11:41 AM
Joined: Aug 2006
Posts: 1,613
Deerfield, Ohio
70dusterjohn Offline OP
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70dusterjohn  Offline OP
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2nd run after shock adjustment

https://youtu.be/99dqTyZ5r7A

Last edited by 70dusterjohn; 09/23/17 11:42 AM.
Re: Rear end rotation [Re: 70dusterjohn] #2375407
09/23/17 11:46 AM
09/23/17 11:46 AM
Joined: Aug 2006
Posts: 1,613
Deerfield, Ohio
70dusterjohn Offline OP
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70dusterjohn  Offline OP
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And 2nd adjustment on the shocks

https://youtu.be/wC4VLp1XWB4

Re: Rear end rotation [Re: 70dusterjohn] #2375409
09/23/17 11:49 AM
09/23/17 11:49 AM
Joined: Aug 2006
Posts: 1,613
Deerfield, Ohio
70dusterjohn Offline OP
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Now mind you that these where all test passes and never ran it all out other than 60ft was flat footed .. I switched to radials so I wanted to make sure all was good. But this is only the 7th pass on the car since I got it back together. 60ft improved by almost a tenth.. so I'm happy so far. But had issues with the car breaking up in the top of each gear. So I'm working that issue as we speak.. I just think I need better shocks period ..

Re: Rear end rotation [Re: 70dusterjohn] #2375512
09/23/17 03:04 PM
09/23/17 03:04 PM
Joined: Aug 2006
Posts: 1,613
Deerfield, Ohio
70dusterjohn Offline OP
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Deerfield, Ohio
No one ? Nobody has an idea ? No ? Okay

Re: Rear end rotation [Re: 70dusterjohn] #2375517
09/23/17 03:12 PM
09/23/17 03:12 PM
Joined: Aug 2003
Posts: 43,127
Bend,OR USA
C
Cab_Burge Offline
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Joined: Aug 2003
Posts: 43,127
Bend,OR USA
In the future have the camera person stand 90 degrees to the car on the starting line so we can see the initial car movement better twocents
Two things cause misfire at the higher RPM, lack of fuel or igintion work
Lack of fuel doesn't occur in first and second gear, normally it starts in high gear in the upper RPM in 1/4 mile shruggy
If your using a power adder you might want to close up the spark plug gap .005 or so scope
IHTHs thumbs


Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
Re: Rear end rotation [Re: 70dusterjohn] #2375521
09/23/17 03:22 PM
09/23/17 03:22 PM
Joined: Aug 2006
Posts: 1,613
Deerfield, Ohio
70dusterjohn Offline OP
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70dusterjohn  Offline OP
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Figured out the miss. Had a set of fouled plugs. Had a sticking needle and seat .. I had more of a question of how far the read end in rotating ? It got better the stiffer I went on the shocks ..

Re: Rear end rotation [Re: 70dusterjohn] #2376279
09/25/17 10:17 AM
09/25/17 10:17 AM
Joined: Jan 2003
Posts: 13,357
Marion, South Carolina [><]
an8sec70cuda Offline
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Marion, South Carolina [><]
Lookin good to me. Keep tightening up the shocks...more the better.
FWIW...Saturday can be a slow day on here. Just seeing when you posted this and didn't get much response. A lot of folks don't get on here much over the weekend...I know I don't.


CHIP
'70 hemicuda, 575" Hemi, 727, Dana 60
'69 road runner, 440-6, 18 spline 4 speed, Dana 60
'71 Demon, 340, low gear 904, 8.75
'73 Chrysler New Yorker, 440, 727, 8.75
'90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt
'06 GMC 2500HD LBZ Duramax
Re: Rear end rotation [Re: 70dusterjohn] #2376570
09/25/17 04:42 PM
09/25/17 04:42 PM
Joined: Aug 2006
Posts: 1,613
Deerfield, Ohio
70dusterjohn Offline OP
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70dusterjohn  Offline OP
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Well I'm out of adjustments on the shocks. Looking at getting some this week and trying it again. But I do love the radials

Re: Rear end rotation [Re: 70dusterjohn] #2376599
09/25/17 05:23 PM
09/25/17 05:23 PM
Joined: Jan 2008
Posts: 2,363
Cotati, CA
Dave Hall Offline
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Cotati, CA
It looks good from what I could see. Like Cab said, a better angle will give you more info. I did some tuning filming with an iPad and watched it back frame by frame. Very useful tool.

Re: Rear end rotation [Re: 70dusterjohn] #2376667
09/25/17 07:20 PM
09/25/17 07:20 PM
Joined: Aug 2006
Posts: 1,613
Deerfield, Ohio
70dusterjohn Offline OP
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70dusterjohn  Offline OP
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Posts: 1,613
Deerfield, Ohio
Yeah that's what she used .. she's in training right now lol. Trying to teach her where I need her to film and what I need to see. Not to bad for a rookie .. it just seemed like a lot of rotation but then again I have never filed the car from behind..







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