2006 GTO / 2009 G8 LS2 question
#1
2006 GTO / 2009 G8 LS2 question
Hello,
I am new to this forum and I am doing research on 2 different Pontiac cars. I like of these models the 2006 GTO and 2009 G8. Both come with the 6.0 LS2 engines and I am wondering why the 2009 G8 GT has a reduced horsepower rated at 355 compared to the older GTO rated at 400. I can only assume for fuel economy but looking to see if anyone really knows why. Maybe the GTO has a manual trans and the G8 has an automatic trans?? I don't know.
Also I am not sure if both of these vehicles require premium fuel or not. Do they??
There is a low mile G8 out in my area that has the color scheme I like. If I were to pick this one up can it be easily brought up to 400hp with a PCM tune?
Thanks
I am new to this forum and I am doing research on 2 different Pontiac cars. I like of these models the 2006 GTO and 2009 G8. Both come with the 6.0 LS2 engines and I am wondering why the 2009 G8 GT has a reduced horsepower rated at 355 compared to the older GTO rated at 400. I can only assume for fuel economy but looking to see if anyone really knows why. Maybe the GTO has a manual trans and the G8 has an automatic trans?? I don't know.
Also I am not sure if both of these vehicles require premium fuel or not. Do they??
There is a low mile G8 out in my area that has the color scheme I like. If I were to pick this one up can it be easily brought up to 400hp with a PCM tune?
Thanks
#2
Retired
Horsepower could be an emission thing or the way its programmed for that platform.
Horsepower isn't based on whether it has auto or manual trans. It'* actually estimated from an engineering standpoint.
If they are high compression engines or boosted, then I suggest using high octane. Or use whatever is recommended in the owners manual.
Most of the time, tuning can increase the power output.
Horsepower isn't based on whether it has auto or manual trans. It'* actually estimated from an engineering standpoint.
If they are high compression engines or boosted, then I suggest using high octane. Or use whatever is recommended in the owners manual.
Most of the time, tuning can increase the power output.
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