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Old 01-31-2008, 08:09 PM   #1
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Default Difference in turbo vs non turbo 6 spd trans?

While shopping for a 6 speed trans I found a place that has a turbo and a non turbo trans. Is there any difference between the two?

Thanks!
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Old 01-31-2008, 08:14 PM   #2
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To my knowledge, there is no difference.
Curious to know what price you were quoted though.
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Old 01-31-2008, 08:41 PM   #3
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i thought I heard the turbo trans was shot peaned or something.
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Old 01-31-2008, 08:43 PM   #4
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Aren't they both the same trans from the RX-8?

Edit: I'd heard that too, the shot peaning...
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Old 01-31-2008, 08:47 PM   #5
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Quote:
Originally Posted by johndoe View Post
i thought I heard the turbo trans was shot peaned or something.
that would be my guess too....

http://www.miata.net/faq/brochures/2...z_brochure.pdf

the msm brochure says that its got the shot-peen-hardened gears.
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Old 01-31-2008, 08:52 PM   #6
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Quote:
Originally Posted by ArtieParty View Post
that would be my guess too....

http://www.miata.net/faq/brochures/2...z_brochure.pdf

the msm brochure says that its got the shot-peen-hardened gears.
That's interesting... but can you find something that says the N/A 6 spd is not shot peened?
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Old 01-31-2008, 08:59 PM   #7
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working on it......
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Old 01-31-2008, 09:05 PM   #8
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sorry it took so long.....

http://members.aol.com/solomiata/Drivetrain.html


it talks about 5 speed turbo trans. but thats all i could find in my attention span while watching the Rangers KILL the Flyers. maybe ill look it up more in detail later.

does that work?
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Old 01-31-2008, 09:11 PM   #9
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I have a '99 AE 6 speed at 300 RWHP, no problem... All the six speeds are tough. And for the record, no information exists about the N/A 6 speed not being shot peened. My suspicion is that they both are... If not, disassemble and shot peen it. No big deal.

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Old 01-31-2008, 09:24 PM   #10
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how much can shot peening help?
if i was to make a guess i would have to say that both are shot peened, reason being, why would mazda go backand shot peen a transmission thats already proven to be more than adequate...you know?
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Old 01-31-2008, 09:27 PM   #11
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I wouldn't be surprised either way, seeing as the MSM has larger axles than the non turbo cars. And the axles on the standard 7" diff are more than strong enough for a double stock power car.
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Old 01-31-2008, 09:47 PM   #12
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again, good point...
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Old 01-31-2008, 10:13 PM   #13
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Quote:
Originally Posted by Ben View Post
To my knowledge, there is no difference.
Curious to know what price you were quoted though.
So far $600 for a local 82k non turbo trans, have to call them tomorrow to check the price on the turbo trans.

Are you selling a 6 speed w/ shifter and plate?
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Old 02-01-2008, 01:17 AM   #14
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a question for you guys:

I just put a 2002 SE on hold. I am very familiar with the M1, not with the M2 yet. How much do the 2002 SE wheels weigh? Has anyone found a place to get a set or a single one quick? One of the wheels looks like it hit a pot hole.

Also, what is the difference between the 6 speed SE and the regular for 2002? Is this 6 speed also a little beefed up?

Thanks for the help.
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Old 02-01-2008, 02:10 AM   #15
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Quote:
Originally Posted by USMCDriver View Post
a question for you guys:

I just put a 2002 SE on hold. I am very familiar with the M1, not with the M2 yet. How much do the 2002 SE wheels weigh? Has anyone found a place to get a set or a single one quick? One of the wheels looks like it hit a pot hole.

Also, what is the difference between the 6 speed SE and the regular for 2002? Is this 6 speed also a little beefed up?

Thanks for the help.
Wheels are easy to find... Junkyards everywhere have them.

www.car-part.com

The six speed is always stronger than the stock 5 speed, and by a significant margin. Broken six speeds are rare. Only 1 or 2 broken ones have been reported thus far on the net.

Mark
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Old 02-01-2008, 06:04 AM   #16
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Quote:
Originally Posted by dvcn View Post
So far $600 for a local 82k non turbo trans, have to call them tomorrow to check the price on the turbo trans.

Are you selling a 6 speed w/ shifter and plate?
Yeah, same price but would have to be shipped. Get the local one.
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Old 02-01-2008, 09:09 AM   #17
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I just looked up the 6 speed internal parts in MazdaEPC and the answer is yes, the turbo has a different gear set than the non turbo.

Example:
99-05 non turbo 2nd gear is part Y601-17-251, retail $188.55
04-05 turbo 2nd gear is Y611-17-251, retail $191.90
I would interpret this data as the turbo trans has peened gears and the non turbo car does not.

The Torsen LSD in the turbo car is also completely different than the non turbo LSD.
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Old 02-01-2008, 09:21 AM   #18
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Quote:
Originally Posted by Ben View Post
I just looked up the 6 speed internal parts in MazdaEPC and the answer is yes, the turbo has a different gear set than the non turbo.

Example:
99-05 non turbo 2nd gear is part Y601-17-251, retail $188.55
04-05 turbo 2nd gear is Y611-17-251, retail $191.90
I would interpret this data as the turbo trans has peened gears and the non turbo car does not.

The Torsen LSD in the turbo car is also completely different than the non turbo LSD.
Thanks for looking up that info Ben. Another plus to getting the turbo trans is that there is a good chance that it has less mileage on it than the non turbo transmissions.

Update:
The 'local' transmission is over 1,000 miles away from me. Up for grabs:

For pickup in Louisville, Ky - 2000, 85k mile, 6sp, will include shifter if you ask nicely, $600. 800-828-1075

Last edited by dvcn; 02-01-2008 at 11:28 AM.
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Old 02-01-2008, 11:49 AM   #19
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04-05 MSM rear end is a 4.10 whereas the 02 SE is a 3.90. When i first got my 02SE, i though the 6spd was going to feel short for having 250rwhp....... but it doesn't. ANd it helps that i have a 7500rpm redline (MSMs redline at 6500)

I also hear that the turbo 6spd was slightly beefed up...kinda like how Mazda beefed up the 1.8 5spd trans.
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Old 02-01-2008, 11:52 AM   #20
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Quote:
Originally Posted by USMCDriver View Post
a question for you guys:

I just put a 2002 SE on hold. I am very familiar with the M1, not with the M2 yet. How much do the 2002 SE wheels weigh? Has anyone found a place to get a set or a single one quick? One of the wheels looks like it hit a pot hole.

Also, what is the difference between the 6 speed SE and the regular for 2002? Is this 6 speed also a little beefed up?

Thanks for the help.
IIRC the SE wheels are the cross-spoke style (al la BBS-ish) Enkeis. Dunno about the weight, but i'm pretty sure it's close to the regular 16" wheel on the 01+ cars. As for finding one, it could be difficult....might as well buy some wheels that you like.
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