Re: I Have No Power From a Stop
[Re: B1MAXX]
#3184303
10/16/23 08:32 AM
10/16/23 08:32 AM
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Joined: Jan 2003
Posts: 13,400 Marion, South Carolina [><]
an8sec70cuda
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I Live Here
Joined: Jan 2003
Posts: 13,400
Marion, South Carolina [><]
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try more initial timing. If that helps, change the curve.
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
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Re: I Have No Power From a Stop
[Re: VITC_GTX]
#3184339
10/16/23 10:12 AM
10/16/23 10:12 AM
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Joined: Jan 2003
Posts: 75,094 A Banana Republic near you.
JohnRR
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I Win
Joined: Jan 2003
Posts: 75,094
A Banana Republic near you.
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All good questions.
It has the Summit electronic ignition/dizzy. The timing is about 12 degrees to keep it at ~34 total. Vacuum is hooked up to ported vacuum. No other know issues.
Once it get's going it accelerates OK. 34 total , that's not enough , bring it up to 38 , listen for pinging .
running up my post count some more .
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Re: I Have No Power From a Stop
[Re: JohnRR]
#3184392
10/16/23 03:00 PM
10/16/23 03:00 PM
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Joined: Feb 2003
Posts: 10,233 Someplace you aren't
SomeCarGuy
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I Live Here
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Posts: 10,233
Someplace you aren't
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All good questions.
It has the Summit electronic ignition/dizzy. The timing is about 12 degrees to keep it at ~34 total. Vacuum is hooked up to ported vacuum. No other know issues.
Once it get's going it accelerates OK. 34 total , that's not enough , bring it up to 38 , listen for pinging . 34 is enough. Stock heads like 33-35 for max power per Mopar Action. My own experience has been 34 is what they like. Certainly that is enough timing to make good power taking off. 38 might’ve been good with old high octane gas at every station, but not these days.
I want my fair share
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Re: I Have No Power From a Stop
[Re: VITC_GTX]
#3184440
10/16/23 07:18 PM
10/16/23 07:18 PM
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Joined: Mar 2003
Posts: 4,931 Tri-Cities, Washington
VITC_GTX
OP
master
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OP
master
Joined: Mar 2003
Posts: 4,931
Tri-Cities, Washington
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The Road Runner is on the lift so I went out and checked the clutch linkage.
I did not have the 5/32" free play at the end of the clutch fork as recommended by the FSM, I had little to no free play. I don't think the rod was adjusted long enough to put pressure on the fingers/pressure plate that would cause any issues, but stranger things have happened.
Last edited by VITC_GTX; 10/16/23 07:19 PM.
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Re: I Have No Power From a Stop
[Re: VITC_GTX]
#3184445
10/16/23 07:33 PM
10/16/23 07:33 PM
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Joined: Feb 2005
Posts: 4,319 Prospect, PA
BSB67
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master
Joined: Feb 2005
Posts: 4,319
Prospect, PA
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This is my only 4 speed car so I don't have much to compare it to but this can't be right. What are your thoughts???
I have, and have had, multiple 4 speed vehicles. This is confusing. Is it a steel flywheel? Maybe increase the idle speed. Try an initial timing of 15 degrees plus your ported vacuum advance.
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Re: I Have No Power From a Stop
[Re: BSB67]
#3184482
10/16/23 10:34 PM
10/16/23 10:34 PM
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Joined: Mar 2003
Posts: 4,931 Tri-Cities, Washington
VITC_GTX
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OP
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Joined: Mar 2003
Posts: 4,931
Tri-Cities, Washington
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This is my only 4 speed car so I don't have much to compare it to but this can't be right. What are your thoughts???
I have, and have had, multiple 4 speed vehicles. This is confusing. Is it a steel flywheel? Maybe increase the idle speed. Try an initial timing of 15 degrees plus your ported vacuum advance. Sorry, this is my only 4 spd car, I do have three CJ-5's and have had 4 spd trucks but of course they are/were geared lower. Yep, steel flywheel. I'll push the timing up a bit and see what that does for me. Thanks.
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Re: I Have No Power From a Stop
[Re: TJP]
#3184507
10/17/23 12:54 AM
10/17/23 12:54 AM
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Joined: Feb 2003
Posts: 10,233 Someplace you aren't
SomeCarGuy
I Live Here
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I Live Here
Joined: Feb 2003
Posts: 10,233
Someplace you aren't
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The Road Runner is on the lift so I went out and checked the clutch linkage.
I did not have the 5/32" free play at the end of the clutch fork as recommended by the FSM, I had little to no free play. I don't think the rod was adjusted long enough to put pressure on the fingers/pressure plate that would cause any issues, but stranger things have happened. based on the above statement and your previous one about the clutch engaging at the top is cause for concern . The clutch should start to engage about 1-1.5" or so off the floor and have free play at the top before feeling the resistance of the pressure plate. This was my concern based on what was posted.
I want my fair share
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