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05-19-2013, 10:11 AM
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#1
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Senior Member
Join Date: Dec 2012
Location: West TX
Posts: 105
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Clutch help
I have been tracking (1/8 mile) my car and last the last couple of times noticed some problems getting the car in third gear if I take the car to redline. I was running out of chances to run so I lowered my shift point to 6,000 and it went into 3rd fine. Do you think it's the transmission locking me out because I'm to close to redline? What is the fix, shift lower rpm or new clutch????
Thanks
J.Shoot
__________________
2013 Boss 302 #2602
D1 Procharger
So many mods I can't remember them all.
Built and Tuned by True Street
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05-19-2013, 10:16 AM
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#2
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Banned
Join Date: Apr 2013
Location: Gainesville,Tx
Age: 38
Posts: 2,405
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Originally Posted by J.Shoot
I have been tracking (1/8 mile) my car and last the last couple of times noticed some problems getting the car in third gear if I take the car to redline. I was running out of chances to run so I lowered my shift point to 6,000 and it went into 3rd fine. Do you think it's the transmission locking me out because I'm to close to redline? What is the fix, shift lower rpm or new clutch????
Thanks
J.Shoot
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I dont think the clutch is the problem. Could be the synchros in the tranny not keeping up and or wore.
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05-19-2013, 10:32 AM
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#3
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Senior Member
Join Date: Aug 2012
Location: Wylie
Age: 37
Posts: 2,266
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Re: Clutch help
There has been a number of people with this problem with the mt82. Check svtperformance there are some threads on it. Think one option is just to change the fluid, another would be an aftermarket shifter like Barton or mgw. I would do those before new clutch
__________________
2013 Deep Impact Blue GT Premium
386rwhp/383rwtq
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05-19-2013, 10:47 AM
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#4
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Banned
Join Date: Apr 2013
Location: Gainesville,Tx
Age: 38
Posts: 2,405
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Originally Posted by 03MachMe
There has been a number of people with this problem with the mt82. Check svtperformance there are some threads on it. Think one option is just to change the fluid, another would be an aftermarket shifter like Barton or mgw. I would do those before new clutch
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How would a shifter help? Wouldnt it make it worse since the shift will be quicker giving the synchro less time? Id change the fluid first.
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05-19-2013, 10:56 AM
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#5
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Senior Member
Join Date: Sep 2012
Location: Saginaw
Age: 38
Posts: 903
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From what I've read, the consensus is shifter AND fluid. I haven't looked into it too deeply though, I've got a 6R80.
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05-19-2013, 10:57 AM
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#6
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Senior Member
Join Date: Sep 2012
Location: Saginaw
Age: 38
Posts: 903
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BTW, what kind of times are you running, your car is making some good power.
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05-19-2013, 12:27 PM
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#7
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Senior Member
Join Date: Aug 2012
Location: Wylie
Age: 37
Posts: 2,266
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Re: Clutch help
Originally Posted by re-rx7
How would a shifter help? Wouldnt it make it worse since the shift will be quicker giving the synchro less time? Id change the fluid first.
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From what I have heard the stock shifter and bracket have trouble going into third. I have never had an issue so can't say first hand
__________________
2013 Deep Impact Blue GT Premium
386rwhp/383rwtq
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05-19-2013, 01:39 PM
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#8
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Banned
Join Date: Apr 2013
Location: Gainesville,Tx
Age: 38
Posts: 2,405
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Originally Posted by 03MachMe
From what I have heard the stock shifter and bracket have trouble going into third. I have never had an issue so can't say first hand
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Me either. Yet, if it had been fine then I cant see it being his problem. Plus, he said lowering the shift point made it go away? So that pretty much says its not a shifter prob.
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05-19-2013, 01:49 PM
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#9
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Senior Member
Join Date: Aug 2012
Age: 37
Posts: 459
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I would definitely change the fluid. If that does not help then look into a better clutch. At your power level and as much as you track it, a clutch will be very beneficial. If I remember correctly we installed an mgw shifter in this car.
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05-19-2013, 01:50 PM
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#10
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Senior Member
Join Date: Aug 2012
Age: 37
Posts: 459
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Also if you plan to track it often I would highly suggest flushing the brake system and the clutch fluid with motul 600 fluid as they both share the same canister.
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05-19-2013, 02:08 PM
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#11
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Senior Member
Join Date: Dec 2012
Location: West TX
Posts: 105
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Changes so far.
I have changed to the MGW shifter already and changed the fluid last week, so no change.
My best time is a 7.11 @ 99 mph. I was launching at 4,000 rpm and hooking good. I tried to increase my launch rpm to 5,000 and the car breaks loose. I'm running 15" wheels with MT ET streets with 14-15 psi. I'm going to go back to 4,000. Maybe work up a little if it will hold.
__________________
2013 Boss 302 #2602
D1 Procharger
So many mods I can't remember them all.
Built and Tuned by True Street
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05-19-2013, 02:34 PM
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#12
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Banned
Join Date: Apr 2013
Location: Gainesville,Tx
Age: 38
Posts: 2,405
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Originally Posted by Toby
I would definitely change the fluid. If that does not help then look into a better clutch. At your power level and as much as you track it, a clutch will be very beneficial. If I remember correctly we installed an mgw shifter in this car.
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Whats the limit on the stock clutch toby? I see varying numbers....
Originally Posted by Toby
Also if you plan to track it often I would highly suggest flushing the brake system and the clutch fluid with motul 600 fluid as they both share the same canister.
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Did not know this.
Originally Posted by J.Shoot
I have changed to the MGW shifter already and changed the fluid last week, so no change.
My best time is a 7.11 @ 99 mph. I was launching at 4,000 rpm and hooking good. I tried to increase my launch rpm to 5,000 and the car breaks loose. I'm running 15" wheels with MT ET streets with 14-15 psi. I'm going to go back to 4,000. Maybe work up a little if it will hold.
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Sounds more and more like tranny probs.
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05-19-2013, 06:11 PM
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#13
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Senior Member
Join Date: Dec 2012
Location: West TX
Posts: 105
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I called the dealership where I bought it, they sound very willing to help and they no my car has been heavily modded.
Need to change the clutch also I think.
J.Shoot
__________________
2013 Boss 302 #2602
D1 Procharger
So many mods I can't remember them all.
Built and Tuned by True Street
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05-20-2013, 04:09 PM
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#14
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Senior Member
Join Date: Aug 2012
Age: 37
Posts: 459
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Originally Posted by re-rx7
Whats the limit on the stock clutch toby? I see varying numbers....
Did not know this.
Sounds more and more like tranny probs.
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It does vary, but I would recommend changing if you are over 600 rwhp and plan to drive it hard often. I have seen bolt on cars blow the clutch and I have seen 800 rwhp cars holding on the stock clutch.
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