APS boosts Pontiac G8 GT to 557 bhp

Thanks to two turbos
by Thami Masemola
May 13, 2008 11:40 PM
Filed Under: American, General, Pontiac, Tuners

APS, the specialist tuning house with over 25 years of turbo tuning, has turned a Pontiac G8 into something of a Pontiac GR8 (or great). Realizing some potential in the 6.0-litre V8 used in the G8, APS then got to grips with it by installing an intercooled twin turbo system, which is cleverly mounted under the chassis so heat moves away from the engine. Clever yes, if you live in a town with no speed humps and other road oddities.

What power then? How’s about 557 bhp on the trot? And torque? That’s 583.8 ftlb. It’s good figures by any measure, and APS says its system ensures access to all this munchy power and delivers through quite a flat range. The intercoolers work hard to cool things down such that APS claims a quarter mile run twice or more up and down the straight will not even sweat its G8 system.

So those who own VXR8s and HSV Clubsport R8s will be welcome at APS to see how much further things can go. APS themselves reckon there’s quite a few more horses stored under the ‘hood here and perhaps in time it may all come home to roost.

Source: APS via Autoblog
share  |   email to a friend  |   print  |   add a comment

Comments

Wow...that was fast. awesome.

by Xanavi23 | May 13, 2008 11:50 PM
hmm... this car really doesn't need more power 1. lose weight 2. get better brakes 3. get better suspension 4. THEN maybe add some power if needed lol

by carcrazy1234 | May 14, 2008 12:50 AM
unfortunately most ppl don't think in terms of what will make a car go fastest around a track. So when they pump money into there car it either goes into show bits or power. After market suspension tuning companies will never do as good as their aftermarket power tuning counterparts. That being said, I'd love a 557hp G8.

by Joe_Limon | May 14, 2008 1:08 AM
spoken like a true american lol 1. suspension upgrades will help with the extra torque and hp crated by the new output. The amount of weight transition that gets pushed backwards can be controlled with a newer suspension. 2. weight reduction will improvement not just handling. also acceleration, top speed, and just overall performance. 3. also just putting all that power in a car means nothing if it can't PUT all that power on the GROUND. comon now even a daily WCF like you should know that. 4. JUST stating the facts... however i'd LOVE that extra power as well, but if it doesn't reach the ground in a controlled manner then it's pointless unless all you want to do is burnouts lol

by carcrazy1234 | May 14, 2008 4:03 AM
ffs I know that, you aren't proving a thing. I was just stating that there is no money in upgrading the G8 in any other way. The general populace 9 times out of 10 will choose just the power upgrade. That last 10% makes up true car aficionado's and ricers.

by Joe_Limon | May 14, 2008 9:06 AM
actually i just proved your a complete dumba**. That last sentance regarding aficionado's and ricers just proves it more. Tell me one thing. HOW in the WORLD does better handling and losing weight in a car make them a ricer?? your a fool bud

by carcrazy1234 | May 14, 2008 3:28 PM
I don't get it, I didn't offend you, yet you insistently keep trying to rip on me. Ricers go on and on about there suspension setup/weight/brakes/tires. They know a fair bit on that subject, yet not very much else. I wouldn't call them car affictionados because they don't appreciate anything that can go around a corner without going sideways. My point never was that handling/weigh/suspension upgrades aren't worth the money... yet you keep insisting it is so that you look smart or something. My point was that the general populace would much prefer spending money on power rather then performance. Honestly, have you ever raced on a race track with your own car? I would say less then 5% of anybody ever does. So to them if they have a car that can clean up in a race isn't really worth the money. Because they will never do it. But if they have a car that can ride comfortably, and take off like a bat out of hell they would be much more inclined to invest money in it. Honestly I should start making remarks about how stupid your comments look.

by joe_limon | May 14, 2008 11:21 PM
lol i think one time you said your about 20-22 years old?? you clearly must have no life argueing with a 17 year old on a website. ricers do NOT go on and on about there weight, suspension setups brakes?? are you kidding me?? they're all about show, flash, lights, and pointless, fat body kits to make their car standout by the use of flashy objects. Unless i'm fooled, that is the definition of a ricer. If you ACTUALLY care about suspension, weight, brakes, and almost everything that helps you HANDLE in a car, your an enthusiast and a daily racer who likes to go fast around a track and also have security on your daily drive aka knowing that your car will be more in control with the better suspension and brakes. i never said that you said that these setups weren't worth the money, you just seem to suggest that they're for ricers when they really aren't. Otherwise i'm not bashing on you whatsoever. Anyways, sorry if you thought i was bashing you. i was clearly trying to get my point through that suspension, brakes, and handling components are NOT part of the definition of a ricer. :)

by carcrazy1234 | May 15, 2008 2:28 AM
ok, ask yourself, how do ricer's race? they drift. Can you drift a stock car? yes, but you can't do it very well and keep it going. Ricer's who drift know a lot about how suspension components work. You know all those fancy terms like camber,caster,toe,bump steer,rebound,damping. They matter a lot and any good ricer will know how each of these effects their cars handling. Where as most people on this site stop at knowing German cars have independent suspension. That is why I said ricers. They aren't all just about neon lights, flamethrowers, big turbos and spinny rims.

by Joe_Limon | May 15, 2008 6:47 AM
also, I had no life before this site... between full time fsae 8 hours a day 7 days a week and holding a job/school. My couple minutes of relaxation time comes from entertaining myself with your remarks.

by Joe_Limon | May 15, 2008 6:51 AM
Ah 2 things, first of all, thats an HSV not a Pontiac. The G8 is a rebadged version of the Commodore not the Clubsport.

and second, 2 turbo's? I've seen the same being pumped out of those HSV Clubsports with the use of 1 supercharger.

by ADJ-117 | May 14, 2008 3:12 AM
Turbos are better for top end, equal less drivetrain HP loss, and have better cooling properties as they dont have to sit atop the engine, heat rises.

by Xanavi23 | May 14, 2008 7:36 AM
Can we please get the right car WCF!!!..the is a Holden (pictured) and unless there is something i don't know America gets the G8 GXP which has the 6.3L LR3 engines (The model related to the VXR8). Yes the G8 has the 6.0L in the standard model. But that isn't anything your showing. So are they making this for the american market or the European market cuz all the pictures point toward the European market?

by foose1397 | May 14, 2008 3:21 PM
Correction on my own typing the picture is a VXR8 not holden

by foose1397 | May 14, 2008 3:23 PM
Maybe the picture is wrong, but the reason they focus on power right is because American and Canadian tuners have large and relatively empy freeways at night in which they can do highway runs and races, for that power is key. Suspension and lightweight is also good for taking the sweeping corners at speed but its almost guaranteed that most racers have no intentions of taking an actual curve. APS focuses on power and as many firms do, they will outsource suspension. If you want a totally build car, APS will build it for you, including suspension but obviously the suspension will be peices from Eibach, Tein, Koni etc. As for lightening save for adding peices of carbon fibre only special Firms handle that as well. Any other form of lightening(stripping) is handled by the driver or a simple garage.

by Xanavi23 | May 14, 2008 4:04 PM
*As for lightening weight by Carbon Fiber pieces, only special Firms handle that aspect.*

by Xanavi23 | May 14, 2008 4:06 PM
Not that American Tuning firms can only do power, its just what alot of people like, power.

by Xanavi23 | May 14, 2008 9:35 PM
APS tests all their kits at the wheels if i am not mistaken, so 557hp in reality is 657hp at the crank roughly and 583ftlbs is 687ftlbs. Currently the lingenfelter S/C kit for the 6L puts out about 600hp at the crank, and 500lbft of torque(because of energy req to turn s/c) So its easy to see APS makes a great kit, also don't forget this is running stock internals, if they can get the 3.5V6 Nissan to 800whp i'm sure there is plenty of room for more power from this 6L

by radmeister | May 16, 2008 2:52 AM
i hate how GM think they can sell more cars by rebadging them according to the part of the world that they're being sold.

by qwerty-acme | July 17, 2008 9:00 AM
it's still a HSV GTS with a walkinshaw underbonnet turbo.

by qwerty-acme | July 17, 2008 9:02 AM

Add Your Comment

Existing Users

Username
Password
remember me on this computer

New Users

Username
Email
Password
Comment
Subscribe to WorldCarFans Newsletter
Please enter your email in the following box and click subscribe to receive our daily email