They say it cannot be done - 1000bhp Supercharged VXR8
Discussion
swerni said:
The Spruce goose said:
PHCorvette said:
Me and swerni only have one in ours
no ac, oil, differential, engine coolant, transmission, turbo/supercharger?Are they under the big lid thing on the front of the car?
Not sure if this is useful, but describes a 950hp supercharged LS7/LS9 hybrid.
http://www.hotrod.com/cars/featured/1603-mark-stie...
"“Hellfire” uses an LS7 block with a Callies crank, Diamond pistons, and Oliver rods, assembled with ARP hardware. Its high-rpm longevity is possible thanks to titanium intake valves and retainers in its CNC-ported heads and oil squirters pulling combustion heat from the bottom of the pistons. The engine relies on the factory dry-sump oil pump with added tank capacity and an efficient oil cooler from C&R Racing.
When strapped to an engine dyno, Hellfire’s hybrid LS7/LS9 engine produced more than 800 lb-ft of torque between 2,500 and 6,200 rpm, with power holding more than 950 hp from 6,100 to 6,600 rpm."
"The 4.125-inch-bore LS7 block uses CNC-ported LS9 heads and an overdriven LS9 supercharger. The TVS 2300 rotors deliver 15 psi of boost through an intake optimized by Brian Thompson at Thompson Automotive. The engine produces 953 hp."
http://www.hotrod.com/cars/featured/1603-mark-stie...
"“Hellfire” uses an LS7 block with a Callies crank, Diamond pistons, and Oliver rods, assembled with ARP hardware. Its high-rpm longevity is possible thanks to titanium intake valves and retainers in its CNC-ported heads and oil squirters pulling combustion heat from the bottom of the pistons. The engine relies on the factory dry-sump oil pump with added tank capacity and an efficient oil cooler from C&R Racing.
When strapped to an engine dyno, Hellfire’s hybrid LS7/LS9 engine produced more than 800 lb-ft of torque between 2,500 and 6,200 rpm, with power holding more than 950 hp from 6,100 to 6,600 rpm."
"The 4.125-inch-bore LS7 block uses CNC-ported LS9 heads and an overdriven LS9 supercharger. The TVS 2300 rotors deliver 15 psi of boost through an intake optimized by Brian Thompson at Thompson Automotive. The engine produces 953 hp."
HappyMidget said:
I believe it is entirely possible with the setup I have in mind to break the 1k mark. Lingenfelter got 920ish on an LSA only using their own parts. You can get better flowing heads that what they used which will help quite a bit. Will read up on that hybrid later 
I believe I can fly. I believe I can touch the sky.If you insist on carrying on with this nonsense, you should read this: http://www.lsxtv.com/tech-stories/engine/1000-hp-l...
look at the size of it!
6,600 rpm, and a peak of 1,025.4 horsepower and 884.7 foot-pounds of torque with 24 pounds of boost. Great if you plan to tow caravans. As somebody who's owned such a thing, I can tell you 900 lbs through 2 wheels is like driving on ice. Utterly useless. I doubt your alloy block will take it either, my LS1 certainly didn't - that's what broke engine #1.
wormus said:
HappyMidget said:
I believe it is entirely possible with the setup I have in mind to break the 1k mark. Lingenfelter got 920ish on an LSA only using their own parts. You can get better flowing heads that what they used which will help quite a bit. Will read up on that hybrid later
I believe I can fly. I believe I can touch the sky.If you insist on carrying on with this nonsense, you should read this: http://www.lsxtv.com/tech-stories/engine/1000-hp-l...
look at the size of it!
6,600 rpm, and a peak of 1,025.4 horsepower and 884.7 foot-pounds of torque with 24 pounds of boost. Great if you plan to tow caravans. As somebody who's owned such a thing, I can tell you 900 lbs through 2 wheels is like driving on ice. Utterly useless. I doubt your alloy block will take it either, my LS1 certainly didn't - that's what broke engine #1.
The ally block should heable to take it. People have made a lot of power with stock blocks. But it will be on borrowed time. Would be better to use an ERL, RHS, or dart ally block. The LSX is really strong but also another 50kg heavier.
Still yet to see anyone making over the 1000bhp mark with the whipple 2.9. But I'm sure a little n2o would soon sort that out.
Anyway, looking at that article there are a couple of things that stand out. The blower is spec'd out for 2000bhp max and the cam is a stock LS3 non blower cam. Also, the heads are not ported. Sorting out the cam and heads will help with the airflow and drop boost pressure whilst gaining power.
People may mock me for focusing so much on airflow (CAI, so far), but at the end of the day, any restriction is just that, a restriction. This is not just a bolt on blower build using a big heat pump.
People may mock me for focusing so much on airflow (CAI, so far), but at the end of the day, any restriction is just that, a restriction. This is not just a bolt on blower build using a big heat pump.
chuntington101 said:
And that's using the 4.0 ltr whipple!
The ally block should heable to take it. People have made a lot of power with stock blocks. But it will be on borrowed time. Would be better to use an ERL, RHS, or dart ally block. The LSX is really strong but also another 50kg heavier.
Still yet to see anyone making over the 1000bhp mark with the whipple 2.9. But I'm sure a little n2o would soon sort that out.
It's actually a 4.5 litre. Alloy blocks will indeed make big HP but the issue is the torque across the rpm range. Alloy is not as stiff as iron. The ally block should heable to take it. People have made a lot of power with stock blocks. But it will be on borrowed time. Would be better to use an ERL, RHS, or dart ally block. The LSX is really strong but also another 50kg heavier.
Still yet to see anyone making over the 1000bhp mark with the whipple 2.9. But I'm sure a little n2o would soon sort that out.
Unlike our short friend, I have practical experience.
wormus said:
chuntington101 said:
And that's using the 4.0 ltr whipple!
The ally block should heable to take it. People have made a lot of power with stock blocks. But it will be on borrowed time. Would be better to use an ERL, RHS, or dart ally block. The LSX is really strong but also another 50kg heavier.
Still yet to see anyone making over the 1000bhp mark with the whipple 2.9. But I'm sure a little n2o would soon sort that out.
It's actually a 4.5 litre. Alloy blocks will indeed make big HP but the issue is the torque across the rpm range. Alloy is not as stiff as iron. The ally block should heable to take it. People have made a lot of power with stock blocks. But it will be on borrowed time. Would be better to use an ERL, RHS, or dart ally block. The LSX is really strong but also another 50kg heavier.
Still yet to see anyone making over the 1000bhp mark with the whipple 2.9. But I'm sure a little n2o would soon sort that out.
Unlike our short friend, I have practical experience.
Intresting it took so much boost. Heard of similar numbers at a lot less boost.
chuntington101 said:
Intresting it took so much boost. Heard of similar numbers at a lot less boost.
See my earlier comments re. Stock heads and LS3 cam. Major airflow restrictions right there building the back pressure.Good thing about the LSA is the oil squirters to help remove heat from the bottom of the pistons. The 2.9L Whipple is good for 1800cfm which equates to about 1200bhp. I have heard that the 3.4 unit also fits in the GTS engine bay, so might have a chat to Whipple about that. Not too fussed if I need to have a lump in the bonnet though. The 4 and 4.5L units are just overkill for my power targets tbh.
See here for how much even just changing the cam can affect boost pressure. http://www.hotrod.com/how-to/engine/1409-lsx-blowe...
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