Automatic weight distribution
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From: Dallas Texas
St. Jude Donor '13
Automatic weight distribution
I searched and found i could find the front and rear weight of my 02 a4 on the sticker on the door. After checking them and dividing them by the total weight of the car my distribution is 48/52.
My confusion comes from the manual has a distribution of 49/51 and the t-56 sits in the rear. How can they move the trans further to the front near the engine and only change the ratio by 1%?
Have they added weight to the rear to compensate?
My confusion comes from the manual has a distribution of 49/51 and the t-56 sits in the rear. How can they move the trans further to the front near the engine and only change the ratio by 1%?
Have they added weight to the rear to compensate?
Burning Brakes
Joined: Oct 2011
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From: Roseville MI
Torque converter in the rear, auto weighs more plus much more fluid weight. Clutch and heavy flywheel in front and transmission weighs less. Should equal a higher rear weight bias for the automatic.
Scott
Scott
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St. Jude Donor '13
What I was trying to ask, in the early morning after just getting off work, was how does gm allow for both the manual with the trans in the rear, and the auto with the trans towards the front to have relatively equal weight distributions?
I think scott1094 tried to answer this but its a little broken up. So the trans weight less...than what? Clutch and heavy flywheel in front where the trans and engine are....wouldnt that creat more weight up front?
My assumption here is that the front would be significantly heavier and the weight ratio would be nothing close to 50/50. I am just wondering what GM engineered in orser to balance it out with having the auto trans up from like camero and trans ams.
I think scott1094 tried to answer this but its a little broken up. So the trans weight less...than what? Clutch and heavy flywheel in front where the trans and engine are....wouldnt that creat more weight up front?
My assumption here is that the front would be significantly heavier and the weight ratio would be nothing close to 50/50. I am just wondering what GM engineered in orser to balance it out with having the auto trans up from like camero and trans ams.
Last edited by NotAnExpert; Mar 16, 2013 at 03:02 PM.
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The auto tranny is in the rear of the car - same as the manual tranny.
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St. Jude Donor '13
Ok now I am really confused. I do take solice in atleast I chose an appropriate forum name. I looked under the car last night and it looked like the transmission was at the front of the car. However I'm thinking the steel cover I saw was not the transmission but the oil pan cover.I am not familiar with a trans axle system and was not aware of that was the name the system was given. So now it looks like I have enough info to do some research. Thanks for your replies.
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From: Naples, FL -/- Oxford, England
Yes, torque converter in the rear is right.
And being super-picky it is not a transaxle (which is transmission and differential all in one casing). it is just a rear mounted transmission.
Answer to OP's question is as scott1094 wrote, auto tranny and torque converter weigh more than manual tranny - which has clutch at front.
And being super-picky it is not a transaxle (which is transmission and differential all in one casing). it is just a rear mounted transmission.
Answer to OP's question is as scott1094 wrote, auto tranny and torque converter weigh more than manual tranny - which has clutch at front.
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Thread Starter
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St. Jude Donor '13
Yeah im good on that. It was after work in the early morning. I looked under the car and in my haze I thought the oil pan was the bottom of the trans which is why I call myself NotAnExpert. This way when I ask stupid questions its already expected.
Drifting
Joined: Mar 2011
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From: Richardson TX
I searched and found i could find the front and rear weight of my 02 a4 on the sticker on the door. After checking them and dividing them by the total weight of the car my distribution is 48/52.
My confusion comes from the manual has a distribution of 49/51 and the t-56 sits in the rear. How can they move the trans further to the front near the engine and only change the ratio by 1%?
Have they added weight to the rear to compensate?
My confusion comes from the manual has a distribution of 49/51 and the t-56 sits in the rear. How can they move the trans further to the front near the engine and only change the ratio by 1%?
Have they added weight to the rear to compensate?
Burning Brakes
Joined: Oct 2011
Posts: 993
Likes: 481
From: Roseville MI
I'll try again.
Makes no difference if you have an automatic or manual, the transmission is in the rear. They both bolt directly to the rear axle. In the manual the heavy clutch and flywheel are bolted to the engine (more weight to the front) the torque converter (automatic) is in the rear (more weight to the rear). A six speed manual weighs less than the four speed automatic. So, the front to rear weight bias is greater for the automatic than the six speed manual. Not by a lot but enough that GM lists both to be on the safe side (for the lawyers I suppose).
Scott
Makes no difference if you have an automatic or manual, the transmission is in the rear. They both bolt directly to the rear axle. In the manual the heavy clutch and flywheel are bolted to the engine (more weight to the front) the torque converter (automatic) is in the rear (more weight to the rear). A six speed manual weighs less than the four speed automatic. So, the front to rear weight bias is greater for the automatic than the six speed manual. Not by a lot but enough that GM lists both to be on the safe side (for the lawyers I suppose).
Scott
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I'll try again.
Makes no difference if you have an automatic or manual, the transmission is in the rear. They both bolt directly to the rear axle. In the manual the heavy clutch and flywheel are bolted to the engine (more weight to the front) the torque converter (automatic) is in the rear (more weight to the rear). A six speed manual weighs less than the four speed automatic. So, the front to rear weight bias is greater for the automatic than the six speed manual. Not by a lot but enough that GM lists both to be on the safe side (for the lawyers I suppose).
Scott
Makes no difference if you have an automatic or manual, the transmission is in the rear. They both bolt directly to the rear axle. In the manual the heavy clutch and flywheel are bolted to the engine (more weight to the front) the torque converter (automatic) is in the rear (more weight to the rear). A six speed manual weighs less than the four speed automatic. So, the front to rear weight bias is greater for the automatic than the six speed manual. Not by a lot but enough that GM lists both to be on the safe side (for the lawyers I suppose).
Scott
I dont like lawyers