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05-07-2015, 01:30 PM
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#1
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Mongo the Meet Coordinator
Join Date: May 2008
Posts: 16,941
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Quick Driveline Angle Question
4th gen fbod chassis, adjustable torque arm.
Gonna measure trans angle, and mimic that angle with the rear end but opposite. So if trans is 2* down, rear end will point 2* up?
(then there is some adjustment for "preload" in the angle but just wanna set it for 100% street driving at the moment)
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Quote:
Originally Posted by KirkEvil
repo bigals turd gen and part it out to a loving home
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05-07-2015, 05:26 PM
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#2
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Meet Coordinator
Join Date: Jan 2008
Location: brick/pt. pleasant beach
Posts: 19,370
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Yes
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05-07-2015, 08:53 PM
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#3
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Mongo the Meet Coordinator
Join Date: May 2008
Posts: 16,941
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Welp, on first glance, BMR X member and or poly mount dun goofed.
Rear end is 0*, or parallel with car.
Drive shaft angle is 2* going up from rear to trans.
Trans mount is 3* up into car.
So the U joint at pinion is a delta 2* and the U joint at trans is delta 5*.
Prob enough to make noise no?
__________________
Quote:
Originally Posted by KirkEvil
repo bigals turd gen and part it out to a loving home
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Last edited by LTb1ow; 05-07-2015 at 08:54 PM.
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05-08-2015, 06:00 AM
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#4
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Join Date: Sep 2008
Location: Hackettstown, NJ
Posts: 1,668
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Wait, you're saying the transmission is aimed up in the tunnel?
I usually check the engine angle via the front of the cylinder head surfaces, where the accessories mount. those surfaces are 90* to the crankshaft. That gives me the engine/trans angle.
__________________
1998 Z-28 - SLP lid - Ported TB - LS6 Intake - Dynatech SS headers/Catted Y - Magnaflow Exh - 3.42 - Yank SS3600 - UMI weld-in subframe connectors, Adj LCA, Adj PHB, Q1A TA - Bolt-in Relocation Brackets - Strano springs - Koni shocks - 17" C6Z06 wheels - 326HP/335ft-lbs - 12.35 @ 110.41
Quote:
Originally Posted by Blackbirdws6
I can appreciate a dream but this person needed some real friends.
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05-08-2015, 07:06 AM
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#5
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Mongo the Meet Coordinator
Join Date: May 2008
Posts: 16,941
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Quote:
Originally Posted by The_Bishop
Wait, you're saying the transmission is aimed up in the tunnel?
I usually check the engine angle via the front of the cylinder head surfaces, where the accessories mount. those surfaces are 90* to the crankshaft. That gives me the engine/trans angle.
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Yes. Points up from the ground into the car, 3*
I am gonna try to see what I can shim it down to without angering the solid mounts.
__________________
Quote:
Originally Posted by KirkEvil
repo bigals turd gen and part it out to a loving home
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05-08-2015, 07:20 AM
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#6
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Meet Coordinator
Join Date: Jan 2008
Location: brick/pt. pleasant beach
Posts: 19,370
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Ya I wonder where the issues is....and could you cut the trans mount area to lower the tailshaft?
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05-08-2015, 07:42 AM
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#7
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Mongo the Meet Coordinator
Join Date: May 2008
Posts: 16,941
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Quote:
Originally Posted by sweetbmxrider
Ya I wonder where the issues is....and could you cut the trans mount area to lower the tailshaft?
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I am hoping/banking on the trans mount shim being at fault here.
Otherwise, I will see how much of a shim distance I need on the trans mount and then make up something at work.
__________________
Quote:
Originally Posted by KirkEvil
repo bigals turd gen and part it out to a loving home
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05-10-2015, 08:33 AM
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#8
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Join Date: Sep 2008
Location: Hackettstown, NJ
Posts: 1,668
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You have the poly mount with the shim/spacer that goes between it and the mount, yes? If so pull it out and see what you have.
__________________
1998 Z-28 - SLP lid - Ported TB - LS6 Intake - Dynatech SS headers/Catted Y - Magnaflow Exh - 3.42 - Yank SS3600 - UMI weld-in subframe connectors, Adj LCA, Adj PHB, Q1A TA - Bolt-in Relocation Brackets - Strano springs - Koni shocks - 17" C6Z06 wheels - 326HP/335ft-lbs - 12.35 @ 110.41
Quote:
Originally Posted by Blackbirdws6
I can appreciate a dream but this person needed some real friends.
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05-10-2015, 09:01 AM
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#9
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Mongo the Meet Coordinator
Join Date: May 2008
Posts: 16,941
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I did, yanked the shim from the mount. Seemed to drop the trans back to a good angle. Will need to work on it on a lift at this point.
__________________
Quote:
Originally Posted by KirkEvil
repo bigals turd gen and part it out to a loving home
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05-10-2015, 09:30 AM
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#10
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Meet Coordinator
Join Date: Jan 2008
Location: brick/pt. pleasant beach
Posts: 19,370
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****.
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05-11-2015, 02:26 PM
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#11
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^^^Lover of bad cars^^^ Meet Coordinator
Join Date: Aug 2007
Location: Whitehouse Station
Posts: 2,276
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What issue are you having?
__________________
1986 Honda VFR750 - 89.3HP to the wheel
2017 SS M6 - Mods: Nothing Yet.
2026 Tesla Model Y - lol
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05-11-2015, 03:22 PM
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#12
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Lord of the rings / 10 Second Club / Meet Coordinator
Join Date: Aug 2004
Location: Millstone Township, NJ
Posts: 6,389
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His car wants to shake itself apart while in 1st and 2nd gear.
__________________
97 T/A Ram Air Convt
Forever dyno queen / 777rwhp 662 rwtq @ 17lbs / 10.2 @ 140
'24 Corvette Z06
'17 Sierra 2500HD Dmax
'17 Lex LS460
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05-11-2015, 04:04 PM
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#13
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Mongo the Meet Coordinator
Join Date: May 2008
Posts: 16,941
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Solid motor mounts BRAH!
__________________
Quote:
Originally Posted by KirkEvil
repo bigals turd gen and part it out to a loving home
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05-11-2015, 04:49 PM
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#14
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Lord of the rings / 10 Second Club / Meet Coordinator
Join Date: Aug 2004
Location: Millstone Township, NJ
Posts: 6,389
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3rd gear was smooth. No excuse for 1st and 2nd non-sense.
__________________
97 T/A Ram Air Convt
Forever dyno queen / 777rwhp 662 rwtq @ 17lbs / 10.2 @ 140
'24 Corvette Z06
'17 Sierra 2500HD Dmax
'17 Lex LS460
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05-11-2015, 08:02 PM
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#15
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Meet Coordinator
Join Date: Jan 2008
Location: brick/pt. pleasant beach
Posts: 19,370
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Quote:
Originally Posted by Blackbirdws6
3rd gear was smooth. No excuse for 1st and 2nd non-sense.
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Maybe the position of the shifter is effecting the cog?
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