Rear end walks when shifting?
09-23-2009, 08:27 PM
#1
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Rear end walks when shifting? I finally made it out to the track tonight, first time with this setup:
28x11.50 M/T ET Streets
Currie 9" with 3:90's
BMR SFC
made my own LCA's with QA1 heim joints
BMR lower panhard rod
(both of the above are double adjustable)
Spohn QA - tunnel mount
So, whether I'm on the street driving to the strip or going down the track, every time i shift, the car shifts the back end around??
Is something wrong? Are my LCA's not right?
Is it the heim joints?
Tall tires?
heim joints and tall tires?
just want to make sure i'm SAFE for friday
Thanks!
28x11.50 M/T ET Streets
Currie 9" with 3:90's
BMR SFC
made my own LCA's with QA1 heim joints
BMR lower panhard rod
(both of the above are double adjustable)
Spohn QA - tunnel mount
So, whether I'm on the street driving to the strip or going down the track, every time i shift, the car shifts the back end around??
Is something wrong? Are my LCA's not right?
Is it the heim joints?
Tall tires?
heim joints and tall tires?
just want to make sure i'm SAFE for friday
Thanks!
09-23-2009, 09:10 PM
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also, besides me granny shifting...seriously, it was baaaaaaaapp pause.....baaaaaapppp
and not having my shift light, what should I run? I only clicked off a best of 12.9 at 107 mph
(402rwhp - ms3 cam)
but I've had a best of 116mph on street tires...but that was before the cage..suspension..etc added weight
12.50?
and not having my shift light, what should I run? I only clicked off a best of 12.9 at 107 mph
(402rwhp - ms3 cam)but I've had a best of 116mph on street tires...but that was before the cage..suspension..etc added weight
12.50?
09-24-2009, 08:28 AM
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Just giving this a bump since I'm putting the car up on the lift to check everything tonight to make sure nothing came loose from the 3 shake down passes last night.
Back to the track friday night.
Back to the track friday night.
09-24-2009, 10:41 AM
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Have you ever raced on ET Streets before? I know its pretty common for them to "walk" when shifting in a M6 car. It happens to my buddies car every time he shifts it at the track. I would try running some more air in the tires that should help out some.
09-24-2009, 11:36 AM
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first time with the ET Streets, but I notice the slight shimmy when I have my street tires on I believe
would it be the Currie 9"? I know ford 9" have different length axles, right?
would it be the Currie 9"? I know ford 9" have different length axles, right?
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09-24-2009, 04:13 PM
#10
I thought so. What you're experiencing is normal with a locker and manual trans, some call it the locker "side step".....my car does the same thing when shifting slow. Lockers need to have a considerable amount of "slop" in the drivetrain for them to work correctly. Go underneath your car and twist your driveshaft by hand with the brake off and trans in neutral, you'll see what I mean. You can move the shaft pretty far in either direction before the tires move. When you lift off the throttle to shift, the locker unloads and when you get back on the gas after the shift the locker catches again.
Solution: quit taking your right foot off the floor when you shift, ninny.
(j/k)
Solution: quit taking your right foot off the floor when you shift, ninny.
(j/k)
09-24-2009, 04:14 PM
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yulp, when i redid the suspenion last fall i had a full alignment done on it, and i've checked the measurements, the rear is even side to side...
why would it walk? drives fine, just when i shift?
slack from heim joints?
why would it walk? drives fine, just when i shift?
slack from heim joints?
09-24-2009, 08:50 PM
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I thought so. What you're experiencing is normal with a locker and manual trans, some call it the locker "side step".....my car does the same thing when shifting slow. Lockers need to have a considerable amount of "slop" in the drivetrain for them to work correctly. Go underneath your car and twist your driveshaft by hand with the brake off and trans in neutral, you'll see what I mean. You can move the shaft pretty far in either direction before the tires move. When you lift off the throttle to shift, the locker unloads and when you get back on the gas after the shift the locker catches again.
Solution: quit taking your right foot off the floor when you shift, ninny. (j/k)
Solution: quit taking your right foot off the floor when you shift, ninny.
(j/k)now what should it run when I stop being a ninny?
09-25-2009, 09:18 AM
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Any idea what kind of improvements I would see going from an M6 to a th400?
