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#621009 05/01/03 05:00 AM
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I heard some nerds talking about how the mtx-75 is weak and cant hold much over stock hp... personally i think they are retarded, doesn't the 3L duratec use the mtx-75? and that puts out somethings in the range of 210hp ish kinda? kinda mkaes mee worried cuz of the 312hp to the wheel i got on stock tranny :\


Turbo'd Cougar 2.0L w/ 75 shot ... its got some stuff in it ... NOT that fast NOT that furious :P
#621010 05/01/03 06:10 AM
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Transmissions aren't rated by Horsepower, they are rated by Torque.

If anyone remebers what the MTX is rated for, please chime in here.

I do know that the ATX (CD4E) is rated for 200 ft/lbs.


Pete... 2004 Mercury Marauder 300A Black Clearcoat/Dark Charcoal LEATHER DOB 10/31/2003 DOP 1/2/2004 www.mercurymarauder.net
#621011 05/01/03 01:11 PM
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The MTX-75 transmission has a few issues, but it can hold the torque. The open differential is the apparent weak spot with its spider gears as it tends to be the only geared item to break. I thought mine was going but it turned out to be a bad right front wheel bearing.
I've been running a 3L for over a year and recently turbocharged it. It has held the power fine. I cracked the transmission open two days ago and there was nothing wrong inside of it. The spider gears in the diff look fine.
I am going to put a torsen into it now, should be here in the week!

'monger


Former owner of '99 CSVT - Silver #222/2760 356/334 wHP/TQ at 10psi on pump gas! See My Mods '05 Volvo S40 Turbo 5 AWD with 6spd, Passion Red '06 Mazda5 Touring, 5spd,MTX, Black
#621012 05/01/03 10:03 PM
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There were cases of people actually stripping the 1st 2ond and 3ird gears; they were a race team (Mirco I believe) that were getting 300+ HP out of thier 2.5 SVT motors. So be careful what you do.


Mazda 6S, V6, Speed Yellow 5 Speed, Sport package Bose audio Painted 'stash and HIDs! w/Injen 1/4 14.750 @ 94.94 Former car: 99 Contour SE Sport Black MTX V6 SVT plastic... 1/4 - 15.012 @ 90.58
#621013 05/01/03 11:32 PM
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there's a big difference between a race trakc driven 300hp beast and a street driven one. There are people on this site with 350+ crank hp and stock transmissions. Street cars will never see the abuse of a race car. I would not worry about stripping gears.


1999 Silver Frost SVT #609 of 2760 Quaife, lightened SVT Flywheel, SPEC stage II clutch, removed resonator, k&n drop in - various other goodies too.
#621014 05/02/03 01:45 AM
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Originally posted by TheGreatOne:
there's a big difference between a race trakc driven 300hp beast and a street driven one. There are people on this site with 350+ crank hp and stock transmissions. Street cars will never see the abuse of a race car. I would not worry about stripping gears.




I agree, you're going to be ruining drive shafts long before you strip gears...

#621015 05/03/03 08:45 PM
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hehe, dont mean to be an ass, but we dont have a drive shaft all we got is our transaxel (transmission + axle) i was kinda hoping that if i just dont WOT it till the momentum has caught and just not shifting hard, would keep it in good status. whatcha think?


Turbo'd Cougar 2.0L w/ 75 shot ... its got some stuff in it ... NOT that fast NOT that furious :P
#621016 05/03/03 09:03 PM
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Originally posted by C-Tec:
hehe, dont mean to be an ass, but we dont have a drive shaft all we got is our transaxel (transmission + axle) i was kinda hoping that if i just dont WOT it till the momentum has caught and just not shifting hard, would keep it in good status. whatcha think?




I was waiting for someone to jump on that , went to edit it but I was past the time limit.

I think you should be fine if you avoid hard launches, but it is not going to be fail-safe obviously. My original point was that there are other drivetrain components that will fail long before you start shearing gearsets.

#621017 05/03/03 09:42 PM
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If you have a quaife you should be ok as long as your not "on it" all the time.


Mazda 6S, V6, Speed Yellow 5 Speed, Sport package Bose audio Painted 'stash and HIDs! w/Injen 1/4 14.750 @ 94.94 Former car: 99 Contour SE Sport Black MTX V6 SVT plastic... 1/4 - 15.012 @ 90.58

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