Official G8 GXP Numbers Care of GMI - G8Forum.com

awd4life · 09-09-2008, 11:30 AM

2009 Pontiac G8 GXP Power Bumped to 415hp/415ftlbs
GM Inside News Forum

The 2009 Pontiac G8 GXP performance sedan is done going through the SAE J1349 dyno testing, giving it its official horse power of 415hp, up from the 400 estimates when the car was first shown at the New York International Auto Show. Torque also gets a bump to 415. The G8 GXP will use a larger dispalcement 6.2 LS3 V8 engine from the Corvette, and yes race fans...a six speed manual transmission will be available for the GXP model along with the standard six speed auto trans. The LS3 is the third engine available for the G8 line up starting with the 261hp 3.6 V6 engine, a 360hp 6.0 V8 engine equiped with the gas-saving Active Fuel Management system.

415hp/309kw @ 5900rpm
415ftlbs/563Nm @ 4600rpm
SAE1349 Dyno Graph below
http://media.gm.com/us/powertrain/en...c_G8_GXP_n.pdf
Thank You to B4Z for finding this dyno graph!

GMI Preview of the 2009 Pontiac G8 GXP from NYIAS

Source: GMI

PontiacJon · 09-21-2008, 11:32 PM

Now if only we had a price or release date for the GXP

chiefpontiac · 09-22-2008, 08:46 AM

How about just shy of $40,000 including gas-guzzler tax. Exact dollars will be released at LA Auto Show. Lack-of-Economy numbers are apparently 16/22 for manual and a really lousy 15/20 for the automatic. Methinks still that the same 415 hp could have been scavenged from a twin turbo or at least s/c and intercooled 5.3 while acheiving much better mpg.

Estimated date of arrival in US is January, meaning production could start momentarily.

09-09-2008, 11:30 AM	#1 (permalink)
awd4life Administrator Join Date: Mar 2008 Location: Toronto, ON Posts: 18 :	Official G8 GXP Numbers Care of GMI 2009 Pontiac G8 GXP Power Bumped to 415hp/415ftlbs GM Inside News Forum The 2009 Pontiac G8 GXP performance sedan is done going through the SAE J1349 dyno testing, giving it its official horse power of 415hp, up from the 400 estimates when the car was first shown at the New York International Auto Show. Torque also gets a bump to 415. The G8 GXP will use a larger dispalcement 6.2 LS3 V8 engine from the Corvette, and yes race fans...a six speed manual transmission will be available for the GXP model along with the standard six speed auto trans. The LS3 is the third engine available for the G8 line up starting with the 261hp 3.6 V6 engine, a 360hp 6.0 V8 engine equiped with the gas-saving Active Fuel Management system. 415hp/309kw @ 5900rpm 415ftlbs/563Nm @ 4600rpm SAE1349 Dyno Graph below http://media.gm.com/us/powertrain/en...c_G8_GXP_n.pdf Thank You to B4Z for finding this dyno graph! GMI Preview of the 2009 Pontiac G8 GXP from NYIAS Source: GMI

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09-21-2008, 11:32 PM	#2 (permalink)
PontiacJon Junior Member Join Date: Sep 2008 Posts: 5 :	Now if only we had a price or release date for the GXP

09-22-2008, 08:46 AM	#3 (permalink)
chiefpontiac Super Moderator Join Date: Dec 2007 Posts: 243 :	How about just shy of $40,000 including gas-guzzler tax. Exact dollars will be released at LA Auto Show. Lack-of-Economy numbers are apparently 16/22 for manual and a really lousy 15/20 for the automatic. Methinks still that the same 415 hp could have been scavenged from a twin turbo or at least s/c and intercooled 5.3 while acheiving much better mpg. Estimated date of arrival in US is January, meaning production could start momentarily.