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-   -   Stalled A4's come in plz..... (https://ls1tech.com/forums/automatic-transmission/1450357-stalled-a4s-come-plz.html)

JeaneGrae Jul 30, 2011 01:59 PM

Stalled A4's come in plz.....
 
Trying to see what rpm range you stalled guys are in for highway cruising....lets use 70mph as the baseline. Please list maker and stall info...thx

hodge9386 Jul 30, 2011 03:07 PM

at 70 your tq converter will be locked and it wont matter, it will be all about gears and tire size then.

senicalj4579 Jul 30, 2011 03:17 PM

^ hes right. My ss3600 locks up at 36-40mph. Ater lockup its the same as stock.

01ssreda4 Jul 30, 2011 03:47 PM

Rear gears change your cruising rpms, lock up stalls do not. Pointless thread.

z99ls1 Jul 30, 2011 04:09 PM

About 2100 rpm with 3.23's :D. It's all the same after 40mph or so when the converter locks in it spins right along with everything else

ULTIMATEORANGESS Jul 30, 2011 04:18 PM

3k at 70 with 3.73s in OD.

z99ls1 Jul 30, 2011 06:05 PM


Originally Posted by ULTIMATEORANGESS (Post 15214356)
3k at 70 with 3.73s in OD.

theres 900rpm difference between 3.23's and 3.73's?

lt1-xjs Jul 30, 2011 06:31 PM


Originally Posted by z99ls1 (Post 15214656)
theres 900rpm difference between 3.23's and 3.73's?

And that can vary with the tire size, like stated above.

z99ls1 Jul 30, 2011 06:39 PM

Would a bigger size rim make the rpms higher or lower?

FirstYrLS1Z Jul 30, 2011 06:47 PM

from
http://www.f-body.org/gears/

70mph,standard tire diameter
2.73=1750
3.08=1975
3.23=2067
3.42=2200
3.73=2400
3.90=2500
4.10=2633
4.30=2767
4.56=2933

OEM tach and speedo can't be relied upon for accuracy.
GPS will indicate true/actual MPH
Unit such as ScanGaugeII will indicate true/actual RPM

z99ls1 Jul 30, 2011 06:51 PM


Originally Posted by ULTIMATEORANGESS (Post 15214356)
3k at 70 with 3.73s in OD.

According to that graph your way off. R you sure your o/d didn't go out lol

LaBLKv6Z Jul 30, 2011 06:56 PM

I'm at about 2800rpms at 70mph. 4.10's on 275/40/17's, not sure how accurate my tach is though.

FirstYrLS1Z Jul 30, 2011 07:02 PM

My OEM tach indicates about 150rpm higher than my ScanGaugeII indicates.

DrkPhx Jul 30, 2011 08:21 PM


Originally Posted by ULTIMATEORANGESS (Post 15214356)
3k at 70 with 3.73s in OD.

That's not right. I have 3.73's and the rpm's are at 2330 rpms cruising at 70 mph on my scan tool.

ULTIMATEORANGESS Jul 30, 2011 09:27 PM

ill have to pay closer attention but its somewhere near 3k.

z99ls1 Jul 30, 2011 09:34 PM


Originally Posted by ULTIMATEORANGESS (Post 15215221)
ill have to pay closer attention but its somewhere near 3k.

Are your rear tires super small or something?

Fixed

redbird555 Jul 30, 2011 09:38 PM


Would a bigger size rim make the rpms higher or lower?
Taller tires would make the overall gear ratio less (numerically speaking) thus requiring less rpm to turn so in fact if he was turning 3k at 70 his tires would be much smaller than stock if they were larger than stock he would be turning less rpm than everyone else with stock tires and 3.73's

z99ls1 Jul 30, 2011 09:42 PM


Originally Posted by redbird555 (Post 15215253)
Taller tires would make the overall gear ratio less (numerically speaking) thus requiring less rpm to turn so in fact if he was turning 3k at 70 his tires would be much smaller than stock if they were larger than stock he would be turning less rpm than everyone else with stock tires and 3.73's

Ah tthanks for the info

ULTIMATEORANGESS Jul 30, 2011 09:57 PM

lol WTF was i looking at? i just went for a ride. im at 2400 at 70. it doesnt get anywhere near 3k till about 85. :emb:

Sweet_SS Jul 31, 2011 12:56 AM

I'm around 2100rpms with the Yank SS3600, 3.23's @ 70MPH


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