RE: Hellephant 1,000hp Hemi V8 available to order

[anonymous-user]

BathyThermo said:

wormus said:

Say less than £20k fitted and mapped which I’d say is pretty good.

Absolutely, to me the veyron gearbox is more impressive than the engine, although I imagine youd struggle to get the same sort of emissions figures from the aftermarket solution.

Or for the ultimate you can use a few choice components on the same architecture to build a 2050 HP monster.

http://www.superchevy.com/how-to/engines-drivetrai...

[anonymous-user]

wormus said:

Say less than £20k fitted and mapped which I’d say is pretty good.

In a previous thread you said you spent 5 times that to get 900.

[anonymous-user]

fblm said:

In a previous thread you said you spent 5 times that to get 900.

I’m talking engine only, not cost to purchase/develop an entire car. Most of the cost in doing so is in the labour. The LSX b15 was built as a strong package (after I did mine) so all that’s required is forced induction. Entirely possible to build a reliable 1000 hp engine for £20k.

Mine’s not some lashed together dyno queen, it can be driven daily if you can afford the petrol. To get it to that point takes time and money.

Edited by anonymous-user on Wednesday 1st May 07:01

[WCZ]

wormus said:

Entirely possible to build a reliable 1000 hp engine for £20k.

Edited by wormus on Wednesday 1st May 07:01

surely it's not reliable anywhere near the level of a Veyron which will start every time and can be leathered in ice cold or desert climates all year round

[anonymous-user]

WCZ said:

surely it's not reliable anywhere near the level of a Veyron which will start every time and can be leathered in ice cold or desert climates all year round

I very much doubt that too. Zero chance it would be emission compliant for sale either.

[anonymous-user]

fblm said:

WCZ said:

surely it's not reliable anywhere near the level of a Veyron which will start every time and can be leathered in ice cold or desert climates all year round

I very much doubt that too. Zero chance it would be emission compliant for sale either.

Why would it not be emissions compliant? My car has a perfectly good MOT and you are forgetting the stringent emissions tests in USA where most are sold. Cam is what decides emissions and FI engines typically have no cam overlap (to shop boost going out the exhaust) which makes them enissions friendly.

Other questions or misinformed assertions?

As for reliability, at 1000hp it’s 161 HP per litre which is less than a Golf R with a stage 1 remap. Iron block, cross bolted main caps, forged crank and pistons and 6 bolt heads. It’s buikt by GM for boost and thrashing down the drag strip.

Edited by anonymous-user on Wednesday 1st May 18:04

[robinessex]

If the BMW HP4 motorcycle race engine was scaled up to 426 Cubic inches, it would produce 1500BHP @ 15,000RPM. Naturally aspirated !!!

[Ian974]

Both drivetrains have a lot of appeal in completely different ways.
The dodge lump looks to be some great bang for your buck with plug in and go reliable, ridiculous power, from a manufacturer.
The Bugatti engines are more along the lines of "these are some of the most expensive cars in the world, what engine should we build for it?"

Two different solutions for two different requirements. No one is going to put a Bugatti engine into a Charger/ Camaro/ Ultima, in the same way no one is looking for a 1000 bhp crate engine to stick into a Lamborghini/ McLaren/ Bugatti

[tvrolet]

robinessex said:

If the BMW HP4 motorcycle race engine was scaled up to 426 Cubic inches, it would produce 1500BHP @ 15,000RPM. Naturally aspirated !!!

No it wouldn’t. Things don’t work like that. Sure if you harnessed 7 motors together so 28 cylinders it would work. But if you just scale up the design by a factor of 7 then your 250cc per cylinder becomes 1750cc, and there’s no way on gods earth a 1.7 litre cylinder and associated rod will spin at anything near 15000rpm. On my own humble bike with 950cc per cylinder, even with fancy minimal skirt slipper pistons and Carrillo rods we dropped the rev limit to 5400rpm to keep things safe. There’s very little with cylinders approaching a litre that will spin much more than 7000 rpm. And as we know power is torque x revs ( potentially adjusted by a factor depending on units) so with half the revs you need twice the torque to make the same power. Which is of course why folks like Honda came up with 6 cylinder 250s before they were outlawed as even not making too much torque with the small pistons and short stroke the could spin so fast. 1000hp our of 8 cylinders, which by their size are rev limited, is mighty impressive.

So connect 7 BMWs together and it would work. Scale it up and you’ll be lucky to get 1/2 of 15000rpm, and consequently you’ll have half the power.

[anonymous-user]

wormus said:

fblm said:

WCZ said:

surely it's not reliable anywhere near the level of a Veyron which will start every time and can be leathered in ice cold or desert climates all year round

I very much doubt that too. Zero chance it would be emission compliant for sale either.

Why would it not be emissions compliant? My car has a perfectly good MOT and you are forgetting the stringent emissions tests in USA where most are sold. Cam is what decides emissions and FI engines typically have no cam overlap (to shop boost going out the exhaust) which makes them enissions friendly.

Other questions or misinformed assertions?

Yes. If it's so easy why isn't the ''Hellephant'' US emissions compliant for fitment to anything post '76? If you can produce a reliable, emissions compliant 1000bhp crate engine for half the price, why don't you? You could export them. WTF does MOPAR know about building V8 crate engines anyway?

MOT!? have another

[anonymous-user]

fblm said:

Yes. If it's so easy why isn't the ''Hellephant'' US emissions compliant for fitment to anything post '76? If you can produce a reliable, emissions compliant 1000bhp crate engine for half the price, why don't you? You could export them. WTF does MOPAR know about building V8 crate engines anyway?

MOT!? have another

I have an supercharged 830hp LSA engine in my Monaro that is U.K. emissions compliant, does that count? Fastest Monaro at Thunder road (LS7 twin turbo) made 1000hp and that also had an MOT. Andy Frost’s RV3 has a 3000hp GM, twin turbo engine and yes it’s street legal.

I suggest you don’t understand this so I’m going to ignore you.

Edited by anonymous-user on Wednesday 1st May 20:45

[anonymous-user]

wormus said:

I have an supercharged 830hp LSA engine in my Monaro that is U.K. emissions compliant, does that count? Fastest Monaro at Thunder road (LS7 twin turbo) made 1000hp and that also had an MOT. Andy Frost’s RV3 has a 3000hp GM, twin turbo engine and yes it’s street legal.

I suggest you don’t understand this so I’m going to ignore you.

Passing an MOT does not mean it's emissions compliant for sale in 2019 you numpty. The heliphant isn't. The relevance of pre '76 is that earlier cars don't need smog testing.

[anonymous-user]

fblm said:

Passing an MOT does not mean it's emissions compliant for sale in 2019 you numpty. The heliphant isn't. The relevance of pre '76 is that earlier cars don't need smog testing.

fblm said:

MOT!? have another

Make your mind up!

It’s a crate engine and you can put it in any car you like, just like the GM LSx engines I’m referring to. What’s that got to do with 2019? In the original article the engine is in a
70’s Charger!

Edited by anonymous-user on Wednesday 1st May 22:08

[anonymous-user]

wormus said:

fblm said:

Passing an MOT does not mean it's emissions compliant for sale in 2019 you numpty. The heliphant isn't. The relevance of pre '76 is that earlier cars don't need smog testing.

fblm said:

MOT!? have another

Make your mind up!

Which bit don't you understand? It's not difficult.

[anonymous-user]

fblm said:

Which bit don't you understand? It's not difficult.

See above. It’s a CRATE engine not a car!

Edited by anonymous-user on Wednesday 1st May 22:14

[Matt Harper]

fblm said:

Passing an MOT does not mean it's emissions compliant for sale in 2019 you numpty. The heliphant isn't. The relevance of pre '76 is that earlier cars don't need smog testing.

Not sure why all the name calling - but the reality is that this Mopar 426 will be perfectly legal in any car in any state that doesn't emissions test. There are plenty of them.

[anonymous-user]

Matt Harper said:

Not sure why all the name calling - but the reality is that this Mopar 426 will be perfectly legal in any car in any state that doesn't emissions test. There are plenty of them.

Emissions compliant everywhere they don't test emissions!

[Matt Harper]

WCZ said:

the problem with american muscle cars with near 1000bhp is they are generally bad, look at the Dodge Demon which turned out to be a bit of an embarrassment and a laughing stock of youtube

I think this may be a little disingenuous. The reality is that Dodge's Demon numbers were achieved in ideal conditions with cars driven by specialists who know those cars inside out.

I think it is fair to say that the vast majority of Demon buyers bought them based on their bad-ass reputation, investment potential and as a subject of bar-room bragging rights. I've seen a few taken to my local drag strip (Orlando Speedworld) and driven atrociously. There is a lot more to drag racing success than simply standing on the gas and hanging on.

The truth is (as with all manufacturer claims) that a Demon will run a sub-10 second quarter when driven by someone who knows what they're doing.
That is a quite remarkable performance number for a production car with a factory warranty that you can use as a shopping-car. Yes - it is essentially a one-trick pony, but Mopar never claimed it was anything other than that.

It is/was a halo for Hellcat Redeye, SRT Hellcat and Scat Pack - and it has done spectacularly well in driving sales of those variants. I am very envious of their marketing smarts in absolutely knowing their customers wants/needs and providing cars that meet/exceed them.

They will have no trouble selling every 426 crate motor they can produce - despite it's hefty sticker price. The longer the Dodge/Mopar brand can remain unsanitized, the better for all muscle car enthusiasts.

[robinessex]

tvrolet said:

robinessex said:

If the BMW HP4 motorcycle race engine was scaled up to 426 Cubic inches, it would produce 1500BHP @ 15,000RPM. Naturally aspirated !!!

No it wouldn’t. Things don’t work like that. Sure if you harnessed 7 motors together so 28 cylinders it would work. But if you just scale up the design by a factor of 7 then your 250cc per cylinder becomes 1750cc, and there’s no way on gods earth a 1.7 litre cylinder and associated rod will spin at anything near 15000rpm. On my own humble bike with 950cc per cylinder, even with fancy minimal skirt slipper pistons and Carrillo rods we dropped the rev limit to 5400rpm to keep things safe. There’s very little with cylinders approaching a litre that will spin much more than 7000 rpm. And as we know power is torque x revs ( potentially adjusted by a factor depending on units) so with half the revs you need twice the torque to make the same power. Which is of course why folks like Honda came up with 6 cylinder 250s before they were outlawed as even not making too much torque with the small pistons and short stroke the could spin so fast. 1000hp our of 8 cylinders, which by their size are rev limited, is mighty impressive.

So connect 7 BMWs together and it would work. Scale it up and you’ll be lucky to get 1/2 of 15000rpm, and consequently you’ll have half the power.

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!

[anonymous-user]

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!