Question on an auto's rpm/speed ratio
#1
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Join Date: Mar 2012
Location: Moore, Oklahoma
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Question on an auto's rpm/speed ratio
Hey guys,
I'm looking at buying an auto 01 t/a and I'm going to try to figure what kind of rear end is on it but need some help.
What kind of rpm is a stock car suppose to be running at when you're going about 70? (I'll be test driving later so I don't know what its running right now)
Again this is a auto, thanks in advance.
I'm looking at buying an auto 01 t/a and I'm going to try to figure what kind of rear end is on it but need some help.
What kind of rpm is a stock car suppose to be running at when you're going about 70? (I'll be test driving later so I don't know what its running right now)
Again this is a auto, thanks in advance.
#3
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Sounds about right. I believe it has 3.23's and it was running about 2k at 70.
Also, I decided to purchase it so come Thursday I'll officially have a Trans Am. I've always wanted one since I watched Smokey and the Bandit with my dad some years ago. (I'm 24)
Had a 92 base bird (hence the name) and fixed it up and got rid of it a couple weeks ago. Can't wait to start making this one my own!
Also, I decided to purchase it so come Thursday I'll officially have a Trans Am. I've always wanted one since I watched Smokey and the Bandit with my dad some years ago. (I'm 24)
Had a 92 base bird (hence the name) and fixed it up and got rid of it a couple weeks ago. Can't wait to start making this one my own!
#4
TECH Fanatic
At 70 I'm right at about 2100 RPM or so, is it a T/A and not a T/A WS6? If it is a T/A, there is one sure way to check if you have the 3.23's, check the door for the GU5 axle code.
#7
Internet Mechanic
iTrader: (17)
Hey guys,
I'm looking at buying an auto 01 t/a and I'm going to try to figure what kind of rear end is on it but need some help.
What kind of rpm is a stock car suppose to be running at when you're going about 70? (I'll be test driving later so I don't know what its running right now)
Again this is a auto, thanks in advance.
I'm looking at buying an auto 01 t/a and I'm going to try to figure what kind of rear end is on it but need some help.
What kind of rpm is a stock car suppose to be running at when you're going about 70? (I'll be test driving later so I don't know what its running right now)
Again this is a auto, thanks in advance.
OR check the RPO code if you suspect its original. 3.23 will show first gear selection. 2.73's does not.
Figure I'd throw something different out there.
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#9
Pontiacerator
iTrader: (12)
http://www.f-body.org/gears/ click on "1998 A4" and "calculate." Then revise the rear end ratio to 2.73 and compare and it should be clear what you have.