'12 Impala motor.
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The only engine tranny combo in the '12 Impala will be a 302hp/262lbft (I've seen conflictin no.s, but that's most common) 3.6L V6, with a 6 spd transmission. That may give an LS4 a run for the money. Talking about a sleeper.
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/\ yeah,...look at the "lbfts" up top its okay but no need to worry,.....when the caprice comes back its going to shut the Imp down but I think it will only be for the Police the 1st year or something to that effect?? I dunno,....
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Yup...This has been covered before in other threads. Stock for stock, the LS4 will be quicker.
A heads-up run from a dig probably sees the LS4 car grab a nice lead up to 50 or 60, where it runs into a wall because the motor just can't breath. This gives the 3.6 a chance to close the gap some, due to superior top-end breathing and better gearing from the 6T70 trans. In the end, I'll bet a stock LS4 is anywhere from two to four tenths quicker in the quarter mile, maybe more.
A heads-up run from a dig probably sees the LS4 car grab a nice lead up to 50 or 60, where it runs into a wall because the motor just can't breath. This gives the 3.6 a chance to close the gap some, due to superior top-end breathing and better gearing from the 6T70 trans. In the end, I'll bet a stock LS4 is anywhere from two to four tenths quicker in the quarter mile, maybe more.
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I think the ls4 hits a wall when it shifts out of 1st.
I would guess, that the new 302hp Impala should beat a mid 14 sec 271hp Honda Accord, making it a good race for a mid to low 14 second LS4.
And the '12 is rated at 30 mpg highway.
I would guess, that the new 302hp Impala should beat a mid 14 sec 271hp Honda Accord, making it a good race for a mid to low 14 second LS4.
And the '12 is rated at 30 mpg highway.
Last edited by SILVER LS4; 08-01-2011 at 07:16 PM.
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The cars will probably weigh roughly the same, though I would not be surprised if the 3.6/6-speed car weighed more than the LS4 car. After that, it comes down to torque and gearing.
Guess we'll have to wait and see!