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Who has broken a 6 speed?

Old 05-26-2010, 12:03 PM
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gotcha
Thanks!
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Old 05-26-2010, 12:34 PM
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look at the width on these vette gears:
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Old 05-26-2010, 03:21 PM
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Originally Posted by hustler View Post
look at the width on these vette gears:
They've got to compensate for that extra weight somehow!
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Old 06-02-2010, 11:40 AM
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Sav,

Did you have a mazda shop fix your trans? It's looking like my cheap six speed gamble isn't paying off. It pops out of gear when I let off the gas under load. I can manage around town, but it means HPDEs are out of the question. Is this something that any competent shop can handle? Should I bring them a copy of my 6 speed shop manual?

Any advice on tackling this fix would be appreciated.
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Old 06-02-2010, 12:13 PM
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My experience with transmission rebuilding tells me to buy a press and pullers to do the work myself.
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Old 06-02-2010, 01:32 PM
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rebuilding these things has been on my list of must-learns for a while. i've got a press, pullers, 12" digital caliper, and an unlimited supply of beer for anybody who would be willing to show me how to open/close one.
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Old 06-02-2010, 08:53 PM
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Anyone have any data on how hot these transmissions run?
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Old 06-02-2010, 09:43 PM
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I had a normal shop do the work. It turned out fine as far as I can tell. I didn't replace much, just reverse gear and the 5/R shift fork.

A tranny cooler has been on my long todo list for a while now. Might be something I look into more closely now.

Jason, what clutch are you using in your car?
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Originally Posted by codrus View Post
Basically I've come over to the camp of "If something is a reliability problem on the track, just ask Andrew and do what he says".
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Old 06-02-2010, 11:05 PM
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Originally Posted by JayL View Post
Anyone have any data on how hot these transmissions run?

I believe we saw 240*f on Matt Andrew's car at Big Willow in 101* heat
. I'll slap a thermax sticker on my trans case for next weekend.

I just talked to John and he said that the thermax sticker did not go over ambient like 100*f. I don't know if I believe that (sticker malfunction) so I'm going to test mine next weekend.

Last edited by hustler; 06-02-2010 at 11:49 PM.
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Old 06-03-2010, 07:00 PM
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What would you do?

Put low mileage mystery 6-speed in the car? $600-$800

Sell my usable but obviously in need of help 6-speed ~ -$300

Just put money into current 6 speed and know that it's good ~ ?????? +$400 I have in it.

Anyone happen to put a caliper on the shifter ball? I'm trying to determine what year 6-speed shifter I have.
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Old 06-03-2010, 07:08 PM
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Originally Posted by Savington View Post
Jason, what clutch are you using in your car?
ACT sprung 6 puck.
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Old 06-03-2010, 08:06 PM
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Originally Posted by JayL View Post
ACT sprung 6 puck.
I have a theory that 6-pucks are harsher on transmissions than full-face discs. You lost your tranny on a shift, just like TSB and I both did - we both had 6-pucks as well.

My hope is that my 949twin is smoother on the tranny.
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Originally Posted by codrus View Post
Basically I've come over to the camp of "If something is a reliability problem on the track, just ask Andrew and do what he says".
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Old 06-04-2010, 04:17 AM
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Originally Posted by Savington View Post
I have a theory that 6-pucks are harsher on transmissions than full-face discs. You lost your tranny on a shift, just like TSB and I both did - we both had 6-pucks as well.

My hope is that my 949twin is smoother on the tranny.
I have an ACT sprung 6 puck 1.6L size with an extreme pressure plate. It is way smoother than the spec clutch I tried.

I think the tranny noise I was getting was from the sprung disk the metal springs are smashed and loosely rattle around now when I inspected it. I’m wondering if a non sprung hub would be better just because there would be less slop. I suspect the torque level is just overwhelming those springs to the point they are not really absorbing shock but amplifying it sort of like a slide hammer. especially on my 1.6 size disk.

I wish stuff would stop braking on me so I could afford to buy some more cool bits.

Bob
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Old 06-04-2010, 09:02 AM
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Originally Posted by djp0623 View Post
What would you do?

Put low mileage mystery 6-speed in the car? $600-$800

Sell my usable but obviously in need of help 6-speed ~ -$300

Just put money into current 6 speed and know that it's good ~ ?????? +$400 I have in it.

Anyone happen to put a caliper on the shifter ball? I'm trying to determine what year 6-speed shifter I have.
Buy the mystery 6-er and use an FM clutch (I want one, bad). I have a few 6-speeds in the garage but no calipers...if some calipers find their way into my garage I'll measure for you.
Originally Posted by bbundy View Post
I wish stuff would stop braking on me so I could afford to buy some more cool bits.

Bob
I know what you mean, I need a $900 boat:
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Old 06-04-2010, 10:04 AM
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Originally Posted by hustler View Post
look at the width on these vette gears:
T-56s from Camaros are also insanely thick. It is night and day compared to a T-5's gears.
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Old 06-09-2010, 10:58 AM
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haha i drifted with a 5spd and a 6spd blew them all just from putting down close to 300 at the rear wheels....they blew while under power too..i never blew them shifting i have only blown them just sliding in 3rd and then pop ...5 spds and 6 spds suck the only tranny from factory that holds power is the mazdaspeed 6 spd which has stronger gears
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Old 06-09-2010, 11:10 AM
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so I'm assuming you're on the msm 6 speed now then?
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Old 06-09-2010, 11:19 AM
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Originally Posted by Savington View Post
I have a theory that 6-pucks are harsher on transmissions than full-face discs. You lost your tranny on a shift, just like TSB and I both did - we both had 6-pucks as well.

My hope is that my 949twin is smoother on the tranny.
Pfff, I killed my 5spd with an ACT HD street disc and 235rwhp... go figure.
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Old 06-09-2010, 11:58 AM
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How do you ID a Mazdaspeed trans?
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Old 06-09-2010, 12:06 PM
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My guess would be vin#.
But I'd like to know the same thing
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