Got an itch for information today, so I headed down to the Saab dealership... I poked around a 9-3 Aero 6 speed and talked to the service tech who let me look through service information.
The transmission is built in Germany and has a dual output shaft design. I'm almost positive it's a variant of the dual output shaft Getrag used in the Ford SVT Focus. It uses a push/pull/turn single shaft shift mechanism like the HM282. There's a counterweight on the shift linkage that will probably have to be retained if the transmission is transplanted into a Fiero.
The service literature said that the transmission is designed to continuously transmit 400 Nm of torque. 400 Nm is approximately 300 ftlbs. The HM282 is rated for 200 ftlbs and withstands between 300-400 as long as the driver isn't too abusive. If this transmission is rated for 300 ftlbs, perhaps it will handle 500-600 as long as it isn't grotesquely abused.
The clutch mechanism uses a hydraulic release bearing inside the bellhousing.
Currently the transmission is used on the turbo Saabs and only has an Ecotec bellhousing. Next year GM will be offering this transmission with the pushrod V6 and the standard front wheel drive bellhousing. Once that happens, I will be procuring one of these transmissions for my car.
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Here are the ratios: Gear Ratio Split 1st 3.77 2nd 2.04 0.541 3rd 1.32 0.647 4th 0.95 0.720 5th 0.75 0.789 6th 0.62 0.827 FD 3.91
The down side... While the splits for 3rd-6th gear are nice and tight, the 1-2 and 2-3 splits are not very nice. The 1-2 split is especially atrocious as it is even wider than the 1-2 split in the HM282. The 2-3 split in the 6 speed is slightly wider than the 2-3 shift in the HM282.
------------------ '87 Fiero GT: Low, Sleek, Fast, and Loud '90 Pontiac 6000 SE AWD: None of the Above
Luck, Fate and Destiny are words used by those who lack the courage to define their own future
[This message has been edited by Will (edited 06-10-2004).]
I didn't really look, but I think that I remember that it does. I would assume so since every GM manual since before '90 has used one. The Saab axles are BEEFY.
------------------ '87 Fiero GT: Low, Sleek, Fast, and Loud '90 Pontiac 6000 SE AWD: None of the Above
Luck, Fate and Destiny are words used by those who lack the courage to define their own future
I had went onto the Saab forums but those people are completely clueless. I am looking at something as a replacement for my 284 when it dies. The Saab is about the only affordable alternative.
How is 6th or reverse run on these things? A 4th gate or what? Extra shift cable and lever?
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10:03 PM
Jun 11th, 2004
Howard_Sacks Member
Posts: 1871 From: Cherry Hill, NJ Registered: Apr 2001
I had went onto the Saab forums but those people are completely clueless. I am looking at something as a replacement for my 284 when it dies. The Saab is about the only affordable alternative.
How is 6th or reverse run on these things? A 4th gate or what? Extra shift cable and lever?
The Saab box will get even better when the V6 version comes out. It will have the right bellhousing for one thing. If we're REALLY lucky, they'll even fix 1st and 2nd gears.
6th gear is straight back from 5th and Reverse is in its own gate to the left of 1st. Still only two shift cables.
------------------ '87 Fiero GT: Low, Sleek, Fast, and Loud '90 Pontiac 6000 SE AWD: None of the Above
Luck, Fate and Destiny are words used by those who lack the courage to define their own future
The Saab box will get even better when the V6 version comes out. It will have the right bellhousing for one thing. If we're REALLY lucky, they'll even fix 1st and 2nd gears.
6th gear is straight back from 5th and Reverse is in its own gate to the left of 1st. Still only two shift cables.
shift pattern like a fiero 4 speed only with an extra 2 gears on the right - sounds good to me
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01:17 PM
naskie18 Member
Posts: 6258 From: Commerce Twp, MI, USA Registered: Jun 2002
The Saab box will get even better when the V6 version comes out. It will have the right bellhousing for one thing. If we're REALLY lucky, they'll even fix 1st and 2nd gears.
2005 G6, with the GTP model having 250 HP V6 and 6 speed borrowed from Saab. Since the 250 HP V6 is 60 degree 6 based, it will have the "standard" GM transverse bolt pattern, so the 6 speed will have to have a matching bellhousing.
------------------ '87 Fiero GT: Low, Sleek, Fast, and Loud '90 Pontiac 6000 SE AWD: None of the Above
Luck, Fate and Destiny are words used by those who lack the courage to define their own future
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03:23 PM
LoW_KeY Member
Posts: 8081 From: Hastings, MI Registered: Oct 2001
so what are the speeds you'd have to shift out with that gearing?
is that a plus if they put it on the G6? it'll be modified to fit that or no bellhousing.. but anything else would it work for us? If this worked I think we'd have a bunch of happy people
[This message has been edited by LoW_KeY (edited 06-15-2004).]
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03:50 PM
Jun 17th, 2004
Will Member
Posts: 14252 From: Where you least expect me Registered: Jun 2000
Shifting speeds for 1st through 4th would be approximately the same as a 282 with 3.94 final drive (IOW, about 9% lower than with stock Fiero gearing). 5th in the Saab transmission is about the same as 5th in a 282 with 3.94 gears. 6th is slightly taller than 5th in a 3.35 Isuzu box.
------------------ '87 Fiero GT: Low, Sleek, Fast, and Loud '90 Pontiac 6000 SE AWD: None of the Above
Luck, Fate and Destiny are words used by those who lack the courage to define their own future
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02:36 PM
PFF
System Bot
naskie18 Member
Posts: 6258 From: Commerce Twp, MI, USA Registered: Jun 2002
2005 G6, with the GTP model having 250 HP V6 and 6 speed borrowed from Saab. Since the 250 HP V6 is 60 degree 6 based, it will have the "standard" GM transverse bolt pattern, so the 6 speed will have to have a matching bellhousing.
See, now the only problem with that is that I might as well just opt for the 250HP V6 instead of the 3800SC I was going to do.
Same performance, no blower, thus not premium thirsty
Nick
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02:42 PM
LoW_KeY Member
Posts: 8081 From: Hastings, MI Registered: Oct 2001
See, now the only problem with that is that I might as well just opt for the 250HP V6 instead of the 3800SC I was going to do.
Same performance, no blower, thus not premium thirsty
Nick
doesn't sound as neat, I'd opt to pay 20 cents, forced inductioned motors are so easy to mod when it comes to smaller engines anyways, course the power might do you fine I say I won't add power adders but I usually do
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03:19 PM
naskie18 Member
Posts: 6258 From: Commerce Twp, MI, USA Registered: Jun 2002
doesn't sound as neat, I'd opt to pay 20 cents, forced inductioned motors are so easy to mod when it comes to smaller engines anyways, course the power might do you fine I say I won't add power adders but I usually do
But if I get ambitious I could always throw a blower on that
I say I won't add power adders but I usually do 
