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#21
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My Half AN Injun..... |
#22
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Are you using an inclinometer?
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John Wallace - johnta1 Pontiac Power RULES !!! www.wallaceracing.com Winner of Top Class at Pontiac Nationals, 2004 Cordova Winner of Quick 16 At Ames 2004 Pontiac Tripower Nats KRE's MR-1 - 1st 5 second Pontiac block ever! "Every man has a right to his own opinion, but no man has a right to be wrong in his facts." "People demand freedom of speech to make up for the freedom of thought which they avoid." – Socrates |
#23
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1967 Firechicken, 499", Edl heads, 262/266@0.050" duration and 0.627"/0.643 lift SR cam, 3.90 gear, 28" tire, 3550#. 10.01@134.3 mph with a 1.45 60'. Still WAY under the rollbar rule. |
#24
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I do not know how much deflection is in the mounting points of the rear end you have the stiffer the points the closer to exactly the same it can be. Stock rubber moves more than heim joints. parralel under load is all you are after .
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#25
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My Half AN Injun..... |
#26
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I raised the trans up today 1/2" . Now the trans angle is -3.15 and shaft is -1.80 so that comes out to 1.35 . Rear yoke is -.55 drive shaft is 1.80 = 1.25 .So thats close to parallel as thats what i think the video was saying to go for right?
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My Half AN Injun..... |
#27
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I have all polyurethane.
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My Half AN Injun..... |
#28
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Just so everyone knows. Im using this calculator for all my settings.
https://spicerparts.com/calculators/...gle-calculator
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My Half AN Injun..... |
#29
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Quote:
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1967 Firechicken, 499", Edl heads, 262/266@0.050" duration and 0.627"/0.643 lift SR cam, 3.90 gear, 28" tire, 3550#. 10.01@134.3 mph with a 1.45 60'. Still WAY under the rollbar rule. |
#30
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Quote:
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My Half AN Injun..... |
#31
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https://youtu.be/Yss6Uf3AwNM
Here's a link to a pro chassis builder visually showing what i was telling you about. There's a whole series he does thats very informative.
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'65 Tempest 467 3650# 11.30@120.31 |
#32
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But thank you
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My Half AN Injun..... |
#33
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#34
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yeah, that was pretty good
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'65 Tempest 467 3650# 11.30@120.31 |
#35
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No problem. FWIW, that method has served me well for 30 plus years.(without the cool tool and chassis tables/Jack's, I use and have forever, an old craftsman magnetic protractor) I've watched your perseverance here for a long time. There's no doubt you'll get it worked out. Good luck
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'65 Tempest 467 3650# 11.30@120.31 Last edited by Scott65; 05-22-2020 at 04:31 PM. Reason: Addition |
#36
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The best video I saw on youtube and easiest to follow was How to set Pinion Angle by Team Z Motorsports.
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#37
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In that video he takes the rear yokes number of degrees and adds it to the drive shaft angle right? Or am i wrong about this?
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My Half AN Injun..... |
#38
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I don't think he's adding due to his reset to zero function, he doesn't have to. You want the angle to be a very slight V looking from the side. Pinion down towards the ground relative to the driveshaft(negative). Go back and watch Tim's video, paying special attention to his explanation using the "V". If your inclinometer doesn't have the reset zero function like his, then just keep in mind the "V" scenario he lays out. He shows how he tips the tool to verify which direction brings it to zero, and which way its leaning.
Edited to add: if your pinion yoke isn't machined like the one he shows, Ive used a socket that fits the bearing cap to put the measuring tool on to make sure its flat and accurate.
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'65 Tempest 467 3650# 11.30@120.31 Last edited by Scott65; 05-22-2020 at 09:02 PM. Reason: Addition |
#39
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The drive shaft is not part of the equation. In a from scratch dragcar it can be but not with what you are doing. Hang the angle finder on the tail housing or yoke get reading [-3.15 now or take shims out -3.75] now take agle finder to rear end hang on yoke or u joint cap rear end side get plus 3.15 or 3.75 done. This is weight on the suspension not hanging in air
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