1-2 shift. rpm's safe???????
Thread Starter
Instructor
Joined: Aug 2007
Posts: 111
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From: Tallmadge Ohio
1-2 shift. rpm's safe???????
STOCK a4 vert 273. what is the 1-2 shift rpm's ? I never keep it all the way to the floor cause i dont want to hurt my engine. engine just turned 40k. I like mashing and not worry about the rpm but get friggin to nervous. to me the car is fast.and dont want to take my eyes off the road. if someone or thing ran out in front of me it would be then!!
Advanced
Joined: Nov 2009
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umm? it will shift for u, its an automatic.. as long as u a rev limiter you will be fine. if your talkin about manually shiftin it, when it hits about 6k shift it up, because it will take it a second to shift once u move it.
ur not going to hurt anything with a factory rev limiter, you can spin these motors over 7k!
ur not going to hurt anything with a factory rev limiter, you can spin these motors over 7k!
Thread Starter
Instructor
Joined: Aug 2007
Posts: 111
Likes: 0
From: Tallmadge Ohio
umm? it will shift for u, its an automatic.. as long as u a rev limiter you will be fine. if your talkin about manually shiftin it, when it hits about 6k shift it up, because it will take it a second to shift once u move it.
ur not going to hurt anything with a factory rev limiter, you can spin these motors over 7k!
ur not going to hurt anything with a factory rev limiter, you can spin these motors over 7k!
Pro
Joined: Feb 2008
Posts: 687
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From: North Texas TX
This is factory shift points for a 02 with auto at WOT
Labels Speed
1 -> 2 Shift 46.00000
2 -> 3 Shift 93.00000
3 -> 4 Shift 255.00000
2 -> 1 Shift 42.00000
3 -> 2 Shift 90.00000
4 -> 3 Shift 155.00000
Labels Speed
1 -> 2 Shift 46.00000
2 -> 3 Shift 93.00000
3 -> 4 Shift 255.00000
2 -> 1 Shift 42.00000
3 -> 2 Shift 90.00000
4 -> 3 Shift 155.00000
Thread Starter
Instructor
Joined: Aug 2007
Posts: 111
Likes: 0
From: Tallmadge Ohio
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Safety Car
Joined: Oct 2004
Posts: 4,816
Likes: 132
From: Plano TX
there are 2 different gear ratios available on the automatic 2.73 and 3.15.. .. Based on your information and the variance between the 2.73 and 3.15 gears . this info cannot be correct.. It may be correct for 1 0f the gear ratios but not both. So for example if the factory programs the transmission shifts points based on mph and not rpm as you quote... 1 0f 2 things would happen... at 46.00 mph on all the cars the 2.73 would fall about 500 rpm short of the red line( 5500rpm) ... or the 3.15 cars would be bouncing off the rev limiter at 6400 rpm. It would make more sense for the factory to program the shifts at a certain rpm (6000) rather than a certain mph as you say..
Last edited by David426; Mar 8, 2010 at 08:33 AM.
Safety Car
Joined: Oct 2004
Posts: 4,816
Likes: 132
From: Plano TX
02... the answer to you question is your tranny will shift right at the redline and it will not hurt you motor.... The LS1 is a very durable motor.... Someone quoted you can spin the motor to 7000 rpm,, That is just not true or the redline would be at 7000rpm.. The weak link is the stock valve train on the ls1.. Valve float becomes a big issue at 6500rpm with the stock valve train.. The motor by itself or in combo with a aftermarket heads cam package night be able to withstand 7000 rpm, but thats really pushing the envelope
with a cam and stall.
Thread Starter
Instructor
Joined: Aug 2007
Posts: 111
Likes: 0
From: Tallmadge Ohio
02... the answer to you question is your tranny will shift right at the redline and it will not hurt you motor.... The LS1 is a very durable motor.... Someone quoted you can spin the motor to 7000 rpm,, That is just not true or the redline would be at 7000rpm.. The weak link is the stock valve train on the ls1.. Valve float becomes a big issue at 6500rpm with the stock valve train.. The motor by itself or in combo with a aftermarket heads cam package night be able to withstand 7000 rpm, but thats really pushing the envelope
thanks to everyone . just dont want to hurt her.
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