18 replies to this topic

[Nev]

I am currently fascinated by this thing: http://www.turnology...k-hill-climber/

 

More info here: https://www.facebook...698707/?fref=nf

 

I'd love to get involved with a ground up build like this, even if I was just the tea boy!

Edited by Nev, 18 May 2016 - 09:48 PM.

[Mike (Cliffie)]

You'd think that a build like this would deserve a new seat. That one looks like it came out of a pond.

[Moschops]

It looks good, but how did they manage to make something that compact weight over 800Kg? And why use a "truck" engine out of an escalade which probably weights loads and only produces "550 horsepower and 575 lb-ft of torque" boosted. I'm sure it's still an absolute weapon, but seems like a missed opportunity.

[Nev]

It looks good, but how did they manage to make something that compact weight over 800Kg? And why use a "truck" engine out of an escalade which probably weights loads and only produces "550 horsepower and 575 lb-ft of torque" boosted. I'm sure it's still an absolute weapon, but seems like a missed opportunity.

 

I think it was chosen as truck engines are robust and cheap. I bet it only cost about $5000 to $8000 including the extra bits.

 

It is just making 550 BHP on 6 PSI of boost whilst they develop it. If/when they turn the boost up to the easy 30 PSI those turbos can push out to 8000 RPM, that engine is probably strong enough to make well over 1000 HP, maybe even circa 1500.

 

That drivers cell looks so strong, never seen one with that much cross bracing and gusseting. Lovely long wishbone arms too.

 

 

 

 

 

 

Edited by Nev, 19 May 2016 - 01:00 PM.

[Mattyboi]

Robustness is the key here, I'd say thats why they used a "truck" engine. It may "only" produce 550 bhp but because its so strong it might not have to derate at altitude. All the tuned road cars will loose loads of power the higher they run, this should be able to compensate and produce the ideal power all the way up.

[Nev]

Dead right Mattyboi, those turbos can sensibly output a PR of 3.5, so even at 4300 metres (the top of the Pikes Peak mountain) where the atmospheric pressure will be around 0.6 Bar, they will be able to convert that to around 0.6 * 3.5 = 2 Bar of boost. An NA at that height would be on it's arse.

[hairy]

Interesting design. Would like to see that in action.

[Nev]

This is why robust American V8 truck engines are good!   https://www.facebook...06432899134617/

 

Edited by Nev, 20 May 2016 - 07:51 AM.

[Andrew aka Stuwy]

drag racers use truck engines to slap a massive supercharger on get 2000bhp for 1/4 mile

[Mattyboi]

Dead right Mattyboi, those turbos can sensibly output a PR of 3.5, so even at 4300 metres (the top of the Pikes Peak mountain) where the atmospheric pressure will be around 0.6 Bar, they will be able to convert that to around 0.6 * 3.5 = 2 Bar of boost. An NA at that height would be on it's arse.

 

Derate's a killer. The engines I develop have to produce their 3500 bhp peak power all the way up to 4500 metres. Its our big selling point over our competitors, we don't derate.

[Nev]

 

Dead right Mattyboi, those turbos can sensibly output a PR of 3.5, so even at 4300 metres (the top of the Pikes Peak mountain) where the atmospheric pressure will be around 0.6 Bar, they will be able to convert that to around 0.6 * 3.5 = 2 Bar of boost. An NA at that height would be on it's arse.

 

Derate's a killer. The engines I develop have to produce their 3500 bhp peak power all the way up to 4500 metres. Its our big selling point over our competitors, we don't derate.

 

 

Who do you work for and what exactly do you do Mattyboi?  

[Mattyboi]

I'm a Senior Mechanical Development Engineer for Cummins High Horsepower Engineering. At the moment i'm working on engines for Komatsu 930 and 960 haul trucks but I work on all sorts of large diesel and gas engines.

Edited by Mattyboi, 26 May 2016 - 02:35 PM.

[Nev]

I'm a Senior Mechanical Development Engineer for Cummins High Horsepower Engineering. At the moment i'm working on engines for Komatsu 930 and 960 haul trucks but I work on all sorts of large diesel and gas engines.

 

Interesting job, sounds quite involved.  

[Mattyboi]

Its really interesting, industrial engines are way ahead of passenger car engines in terms of technology and robustness. Most large mine equipment is electric drive so runs at rated power for nearly all its working life, which is in years, running 24/7. A good passenger car engine would last maybe 500 hours at rated if it was lucky, so less than a month.

[Nev]

I am still following this amazing creation, the designer/manufacturer is being pretty cagey with info, but here is a recent video showing how amazingly agile it is.

 

https://www.facebook...93331694154767/

 

They've had some part failures during testing, but it is hardly surprising on 1800 HP car which is built to be as light as possible.

 

I can't wait until it actually enters a race and we can see it in full action.

Edited by Nev, 10 November 2016 - 05:27 PM.

[fiveoclock]

Needs more stickers

[Nev]

Needs more stickers

 

Ha ha, I think his stickers are mandatory based on the substantial donations/discounted work from various companies TBH, so fair enough on a circa $500,000+ car.

 

Unfortunately I still don't think he's found a buyer, I guess everyone is waiting to see how it does on Pikes Peak before they commit.  

Edited by Nev, 11 November 2016 - 07:15 AM.

[Nev]

Open headers in the diffuser: https://www.facebook...41410496013553/

 

Edited by Nev, 05 January 2017 - 09:24 PM.

[Nev]

The latest video:

 

https://youtu.be/ViXohHJvi6o