5.0 Mustang vs LS2 Vette vs LS3 Vette
I have owned all 3 and was interested in a comparison.
I ran two of my LS2 Vettes at the track, the automatic went 12.57@110 (1.92 60') with a Magnaflow catback and the manual ran a [email protected] (2.02 60') with a cai and Corsa catback.
I never ran my ls3 automatic, but it felt much faster than either ls2 & forget about my C6 Z06, that was insane.
Anyways....
I spent a couple of hours gathering dyno #s and track times for all 3 in stock configurations and here is what I found after averaging them out:
LS2 Vette - weight 3250 - 400hp
auto - 339rwhp (15% loss) - [email protected]
manual - 349rwhp (13% loss) - [email protected]
LS3 Vette - weight 3250 - 430hp-436hp w/ factory NPP exhaust (avg 433hp)
auto - 376rwhp (13% loss) - [email protected]
manual - 389rwhp (10% loss) - 12.2@117
5.0 Mustang - weight 3650 - 412hp
auto - 359rwhp (13% loss) - [email protected]
manual - 375rwhp (9% loss) - [email protected]
5.0 Mustang with a tune or tune and cai
auto - [email protected] - 377rwhp (tune only) - 389rwhp (tune and cai)
manual - [email protected]
Mustang #s were hard to come by and I tried to use only runs on stock tires.
All the Vette runs were on stock tires and completely factory stock down to the air filter.
I did not get dyno #s for the manual tranny with a tune, if people post them I will add it.
Keep in mind, the 5.0 is at a 400lb weight disadvantage to a c6 Vette, so we will need about 35rwhp to keep up just due to weight.
As for the LS2 - we have the rwhp covered stock for stock by 20rwhp auto and 26rwhp manual, but we need 35rwhp to cover the weight.
As you can see we should be off by 0.1-0.2:
auto Vette [email protected] beats the 5.0 [email protected]
manual Vette [email protected] beats the 5.0 [email protected]
The LS3 is an animal, the auto ls3 has us covered by 16rwhp + 35rwhp weight = 51rwhp and the manual has us covered by 14rwhp + 35rwhp weight = 49rwhp.
We should be off by 0.5-0.6 and it shows.
auto Vette [email protected] beats 5.0 [email protected]
manual Vette 12.2@117 beats 5.0 [email protected]
The tuned 5.0 evens things up with 377rwhp auto which equals the LS3 and the cai and tuned auto 389rwhp gets us a 13rwhp advantage.
However the 35rwhp due to weight still hurts us and we end up giving away 22rwhp auto vs auto.
Results for the auto LS3 vs a tuned 5.0
LS3 [email protected] to 5.0 [email protected]
You can see the 20rwhp in the trap speed, but only 0.1 difference in et.
I think after more times come in for the 5.0s at sea level tracks and with more track experience, the LS3 Vette vs the tuned and cai 5.0 will be a drivers race.
I think the 5.0 with one or two more minor mods will even it up or pull out a slight advantage.
I think maybe a midpipe with or without headers might do it.
See what happens when I have a couple of days off.
I have owned all 3 and was interested in a comparison.
I ran two of my LS2 Vettes at the track, the automatic went 12.57@110 (1.92 60') with a Magnaflow catback and the manual ran a [email protected] (2.02 60') with a cai and Corsa catback.
I never ran my ls3 automatic, but it felt much faster than either ls2 & forget about my C6 Z06, that was insane.
Anyways....
I spent a couple of hours gathering dyno #s and track times for all 3 in stock configurations and here is what I found after averaging them out:
LS2 Vette - weight 3250 - 400hp
auto - 339rwhp (15% loss) - [email protected]
manual - 349rwhp (13% loss) - [email protected]
LS3 Vette - weight 3250 - 430hp-436hp w/ factory NPP exhaust (avg 433hp)
auto - 376rwhp (13% loss) - [email protected]
manual - 389rwhp (10% loss) - 12.2@117
5.0 Mustang - weight 3650 - 412hp
auto - 359rwhp (13% loss) - [email protected]
manual - 375rwhp (9% loss) - [email protected]
5.0 Mustang with a tune or tune and cai
auto - [email protected] - 377rwhp (tune only) - 389rwhp (tune and cai)
manual - [email protected]
Mustang #s were hard to come by and I tried to use only runs on stock tires.
All the Vette runs were on stock tires and completely factory stock down to the air filter.
I did not get dyno #s for the manual tranny with a tune, if people post them I will add it.
Keep in mind, the 5.0 is at a 400lb weight disadvantage to a c6 Vette, so we will need about 35rwhp to keep up just due to weight.
As for the LS2 - we have the rwhp covered stock for stock by 20rwhp auto and 26rwhp manual, but we need 35rwhp to cover the weight.
As you can see we should be off by 0.1-0.2:
auto Vette [email protected] beats the 5.0 [email protected]
manual Vette [email protected] beats the 5.0 [email protected]
The LS3 is an animal, the auto ls3 has us covered by 16rwhp + 35rwhp weight = 51rwhp and the manual has us covered by 14rwhp + 35rwhp weight = 49rwhp.
We should be off by 0.5-0.6 and it shows.
auto Vette [email protected] beats 5.0 [email protected]
manual Vette 12.2@117 beats 5.0 [email protected]
The tuned 5.0 evens things up with 377rwhp auto which equals the LS3 and the cai and tuned auto 389rwhp gets us a 13rwhp advantage.
However the 35rwhp due to weight still hurts us and we end up giving away 22rwhp auto vs auto.
Results for the auto LS3 vs a tuned 5.0
LS3 [email protected] to 5.0 [email protected]
You can see the 20rwhp in the trap speed, but only 0.1 difference in et.
I think after more times come in for the 5.0s at sea level tracks and with more track experience, the LS3 Vette vs the tuned and cai 5.0 will be a drivers race.
I think the 5.0 with one or two more minor mods will even it up or pull out a slight advantage.
I think maybe a midpipe with or without headers might do it.
See what happens when I have a couple of days off.
