RE: Hellephant 1,000hp Hemi V8 available to order
Discussion
NFC 85 Vette said:
robinessex said:
I never mentioned how many pistons it would have. So I'll be generous and reckon a V12 or a V16 tuned to that level would be circa 1000BHP. Still naturally asperated though!
....can you add some detail to this? robinessex said:
Nope. Just what I think possible. Incidentally, at the end of the 3.0Ltr F1 engine regs, engines were circa 950BHP at 19,000 RPM, weighing about 90Kg !!
OK, but in the real world, it's somewhat different. I'm well aware of what F1 engines were capable of, but a 3.0 litre V10 had a very small rotating mass per cylinder, hence why it could rev so high, much like motorcycle engines. Small diameter piston, short stroke.The 426 Hemi is not one of those, and it does not have pneumatic valve gear. It's relatively easy to produce power with it (even a fool like me has got about 3800bhp from a 411CID 426 based lump), but that revs to a maximum of 8400rpm and no more.
You have to realise that in an engine like the 426, one piston alone weigh North of 800 grams in a race application, and that might not sound like a lot, but the speed in which you want it to move, along with the force on the wrist pin wants to bend it like a banana, and that's before you ask it see some revs.
NFC 85 Vette said:
robinessex said:
Nope. Just what I think possible. Incidentally, at the end of the 3.0Ltr F1 engine regs, engines were circa 950BHP at 19,000 RPM, weighing about 90Kg !!
OK, but in the real world, it's somewhat different. I'm well aware of what F1 engines were capable of, but a 3.0 litre V10 had a very small rotating mass per cylinder, hence why it could rev so high, much like motorcycle engines. Small diameter piston, short stroke.The 426 Hemi is not one of those, and it does not have pneumatic valve gear. It's relatively easy to produce power with it (even a fool like me has got about 3800bhp from a 411CID 426 based lump), but that revs to a maximum of 8400rpm and no more.
You have to realise that in an engine like the 426, one piston alone weigh North of 800 grams in a race application, and that might not sound like a lot, but the speed in which you want it to move, along with the force on the wrist pin wants to bend it like a banana, and that's before you ask it see some revs.
robinessex said:
Drag Race Engine. The ultimate 426 Hemi engine. Supercharged of course, but can momentarily hit 8,500RPM, and output 11,000BHP !!!
Yes... something like that, but that's irrelevant, and as we all know, driving in a straight line is easy and boring etc. And drag racing engines don't count.Can you show us the 1000bhp N/A V16 you're saying is possible based on scaling up a motorbike engine? It must exist somewhere as you said it's possible.
NFC 85 Vette said:
robinessex said:
Drag Race Engine. The ultimate 426 Hemi engine. Supercharged of course, but can momentarily hit 8,500RPM, and output 11,000BHP !!!
Yes... something like that, but that's irrelevant, and as we all know, driving in a straight line is easy and boring etc. And drag racing engines don't count.Can you show us the 1000bhp N/A V16 you're saying is possible based on scaling up a motorbike engine? It must exist somewhere as you said it's possible.
This is the Callaway V16.
https://www.callawaycars.com/homepage/the-company/...
A V16 motor he built using four Yamaha 1,000 cc motorcycle engines mounted on a unique block. Dubbed the Cyclone, this 4.0L mill was good for 550 hp @ 10,000 rpm. In current tune, the redline has been lifted to 11,500 rpm, allowing horsepower to swell to 640. it will certainly be entertaining.
Edited by robinessex on Thursday 2nd May 18:51
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