2009 Pontiac G8 GXP Power Bumped to 415hp/415ftlbs

**BigAls87Z28** · 09-08-2008, 10:54 AM

2009 Pontiac G8 GXP Power Bumped to 415hp/415ftlbs
www.gminsidenews.com

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

tripowergto · 09-08-2008, 11:05 AM

Is 09 GXP pricing available yet?

b4z · 09-08-2008, 11:06 AM

BigAlsZ28,

This info has me wanting to ask some questions:

Will the GXP have two hp ratings for manual and auto like the Camaro SS?

Will the auto Camaro have 415 hp and not 400hp?

Either way it's good news to hear that the GXP will have 13 more hp.

TAMark · 09-08-2008, 11:08 AM

Quote:

Originally Posted by tripowergto

Is 09 GXP pricing available yet?

No. recent email from Pontiac stated that production will start in September and cars will arrive in December. Final pricing still being determined.

sphinxrb · 09-08-2008, 11:14 AM

Thats great. I hope it has a Navigation system, otherwise, it's not for me. I currently have a '05 Grand Prix GXP, that would be the main option I would like on my next car.

E. Haskell · 09-08-2008, 11:17 AM

Hmm, 300hp 335i or 415hp GXP for less money?

Ultra Magnus · 09-08-2008, 11:21 AM

I can hardly wait to get more info on this car. Good to hear of the HP bump. I was wondering how much GM was going to detune the LS3 considering it seems to make wildly different HP numbers depending on application.

hercman · 09-08-2008, 11:26 AM

Sounds promising. But I've yet to see a demand for the G8. I can count on one hand the number of G8s I've seen running around town since it's release. I see more sitting on the lots then on the roads.

Not looking good. Also I haven't seen many commercials either. But I can't turn the channell without seeing a Malibu/Silverado commercial.

**BigAls87Z28** · 09-08-2008, 11:39 AM

Quote:

Originally Posted by b4z

BigAlsZ28,

This info has me wanting to ask some questions:

Will the GXP have two hp ratings for manual and auto like the Camaro SS?

Will the auto Camaro have 415 hp and not 400hp?

Either way it's good news to hear that the GXP will have 13 more hp.

To answer both questions, I dont think so since the GXP will not have the L99, only the LS3 in both models. Remember that the Camaro SS auto will get the L99, not the LS3. The L99 will be a AFM'ed version of the LS3.

bballer113 · 09-08-2008, 11:43 AM

Quote:

Originally Posted by hercman

Sounds promising. But I've yet to see a demand for the G8. I can count on one hand the number of G8s I've seen running around town since it's release. I see more sitting on the lots then on the roads.

Not looking good. Also I haven't seen many commercials either. But I can't turn the channell without seeing a Malibu/Silverado commercial.

I guess it depends on where your located. I've seen alot of G8's around here. Also the G8 is available at a rental car agency so I don't know if i'm seeing fleet models or not.

I think the longer they wait for pricing this car the greater chance that we won't see the price over 40k after GG tax.

JT87 · 09-08-2008, 11:47 AM

Quote:

Originally Posted by b4z

BigAlsZ28,

This info has me wanting to ask some questions:

Will the GXP have two hp ratings for manual and auto like the Camaro SS?

Will the auto Camaro have 415 hp and not 400hp?

Either way it's good news to hear that the GXP will have 13 more hp.

The auto Camaro will be paired with a different, 400hp small block (L99), which has a different cam and AFM, as well as more economy-tuned ECM.

I'm going to have a hard time in 2011/2012, trying to decide between an LS3 G8 and an LS3 Camaro.

**BBDOS CV8** · 09-08-2008, 11:48 AM

G8 sold almost 2,000 last month, meaning it's on target to exceed 20,000 for a full year. GM indicated 20-30K. So add the GXP and the ST and it may straddle those figures. The G8 should soon be getting the DI V6 which should pick numbers up there a bit where they've been a little slow.

The HSV R8 Clubsport version in Oz gets 317Kw or 425 hp from the LS3 but that seems mainly due to tubular headers. The G8 GXP will get the same power auto or manual because there is no cylinder deactivation like the auto Camaro is to get. Manual Camaro will basically have this same motor, so should get similar (415hp) power ratings depending on final tune and equipment.

Hurricane · 09-08-2008, 11:55 AM

Will it have an in-dash nav system as an option?

hercman · 09-08-2008, 12:04 PM

Quote:

Originally Posted by bballer113

I guess it depends on where your located. I've seen alot of G8's around here. Also the G8 is available at a rental car agency so I don't know if i'm seeing fleet models or not.

I think the longer they wait for pricing this car the greater chance that we won't see the price over 40k after GG tax.

I'm in the Atlanta metro area. I've seen only four on the road.

**BigAls87Z28** · 09-08-2008, 12:08 PM

Quote:

Originally Posted by BBDOS CV8

G8 sold almost 2,000 last month, meaning it's on target to exceed 20,000 for a full year. GM indicated 20-30K. So add the GXP and the ST and it may straddle those figures. The G8 should soon be getting the DI V6 which should pick numbers up there a bit where they've been a little slow.

The HSV R8 Clubsport version in Oz gets 317Kw or 425 hp from the LS3 but that seems mainly due to tubular headers. The G8 GXP will get the same power auto or manual because there is no cylinder deactivation like the auto Camaro is to get. Manual Camaro will basically have this same motor, so should get similar (415hp) power ratings depending on final tune and equipment.

Camaro SS manual will have 422hp. To drop down hp to the 415 would be horrible. Camaro's exhaust tuning will be MUCH different then the Holden units.

Quote:

Originally Posted by Hurricane

Will it have an in-dash nav system as an option?

No. But Bluetooth will be standard I belive.

09-08-2008, 10:54 AM	#1 (permalink)
BigAls87Z28 GMI Staff Member Join Date: Apr 2003 Posts: 10,597	2009 Pontiac G8 GXP Power Bumped to 415hp/415ftlbs 2009 Pontiac G8 GXP Power Bumped to 415hp/415ftlbs www.gminsidenews.com 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 __________________ Alexander Villani GMInsideNews Editor Email Me @BigAl@GMInsidenews.com Tweet Me @Twitter.com/BigAls87Z28 2009 Malibu LT 2.4 : 1987 Camaro Z28 : 1972 Camaro RS

09-08-2008, 11:05 AM	#2 (permalink)
tripowergto 3.6 Liter SIDI V6 Join Date: Jan 2003 Location: Rowland PA Drives: 06 GTO 6 Spd, 02 Firebird Formula, 08 G6 Posts: 1,037	Re: 2009 Pontiac G8 GXP Power Bumped to 415hp/415ftlbs Is 09 GXP pricing available yet? __________________ 09 Stryker Blue G8 GT w/sport/prem/sunroof 06 GTO 400 HP LS2 6SPD w/18's(just traded) 02 Firebird Formula LS1 HURST 6SPD 70 GTO 400 w/stonecrusher 4 SPD 65 GTO Conv 389 Auto http://realrockpro.com/

09-08-2008, 11:06 AM	#3 (permalink)
b4z 3.6 Liter SIDI V6 Join Date: Jan 2003 Posts: 1,163	Re: 2009 Pontiac G8 GXP Power Bumped to 415hp/415ftlbs BigAlsZ28, This info has me wanting to ask some questions: Will the GXP have two hp ratings for manual and auto like the Camaro SS? Will the auto Camaro have 415 hp and not 400hp? Either way it's good news to hear that the GXP will have 13 more hp.

09-08-2008, 11:14 AM	#5 (permalink)
sphinxrb Walking Join Date: Apr 2004 Posts: 9	Re: 2009 Pontiac G8 GXP Power Bumped to 415hp/415ftlbs Thats great. I hope it has a Navigation system, otherwise, it's not for me. I currently have a '05 Grand Prix GXP, that would be the main option I would like on my next car. __________________ 2005 Pontiac Grand Prix GXP

09-08-2008, 11:17 AM	#6 (permalink)
E. Haskell 6.2 Liter LS9 Supercharged V8 Join Date: Jun 2006 Posts: 5,549	Re: 2009 Pontiac G8 GXP Power Bumped to 415hp/415ftlbs Hmm, 300hp 335i or 415hp GXP for less money? __________________ "But you are right, the Camaro gives the most bang for the buck" - Simon says "Despite all the hype surrounding Ford's new twin-turbo, all-wheel drive sport sedan, our long-term Pontiac G8 GT would put it on the trailer." - Edmunds

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09-08-2008, 11:21 AM	#7 (permalink)
Ultra Magnus 3.0 Liter SIDI V6 Join Date: Aug 2005 Location: Autobot City Posts: 647	Re: 2009 Pontiac G8 GXP Power Bumped to 415hp/415ftlbs I can hardly wait to get more info on this car. Good to hear of the HP bump. I was wondering how much GM was going to detune the LS3 considering it seems to make wildly different HP numbers depending on application. __________________ They said it couldn't be done. That is until I did it.

09-08-2008, 11:26 AM	#8 (permalink)
hercman 1.4 Liter Turbocharged ECOTEC Join Date: Nov 2003 Location: Marietta, GA Drives: 1998 Silverado 1998 Grand Prix GTP Posts: 94	Re: 2009 Pontiac G8 GXP Power Bumped to 415hp/415ftlbs Sounds promising. But I've yet to see a demand for the G8. I can count on one hand the number of G8s I've seen running around town since it's release. I see more sitting on the lots then on the roads. Not looking good. Also I haven't seen many commercials either. But I can't turn the channell without seeing a Malibu/Silverado commercial. __________________

09-08-2008, 11:48 AM	#12 (permalink)
BBDOS CV8 GMI Australia Correspondent Join Date: May 2005 Location: Melbourne (no, not that one!) Drives: Monaro Barbados 6M Posts: 2,224	Re: 2009 Pontiac G8 GXP Power Bumped to 415hp/415ftlbs G8 sold almost 2,000 last month, meaning it's on target to exceed 20,000 for a full year. GM indicated 20-30K. So add the GXP and the ST and it may straddle those figures. The G8 should soon be getting the DI V6 which should pick numbers up there a bit where they've been a little slow. The HSV R8 Clubsport version in Oz gets 317Kw or 425 hp from the LS3 but that seems mainly due to tubular headers. The G8 GXP will get the same power auto or manual because there is no cylinder deactivation like the auto Camaro is to get. Manual Camaro will basically have this same motor, so should get similar (415hp) power ratings depending on final tune and equipment. __________________ Barbados Series III CV8 'VT Coupe' 245kW LS1 T56 six-speed manual GTO PBR 320mm brakes/DBA 4000 vented discs

09-08-2008, 11:55 AM	#13 (permalink)
Hurricane News Contributor Join Date: Sep 2003 Posts: 2,413	Re: 2009 Pontiac G8 GXP Power Bumped to 415hp/415ftlbs Will it have an in-dash nav system as an option? __________________ 2007 Yukon XL Denali 2006 Chevrolet Corvette

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