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Old Apr 16, 2013 | 10:40 PM
  #11  
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I believe they're claiming to build a 7.0l V8 that revs to ~9250. Ummm no, not happening.
 
Old Apr 17, 2013 | 02:40 PM
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Originally Posted by Will_CA
I believe they're claiming to build a 7.0l V8 that revs to ~9250. Ummm no, not happening.
I wouldn't dismiss that altogether. The displacement alone wouldn't prohibit that type of RPM. Supposedly its a DOHC design, which would certainly help generate those types of speeds.

NASCAR engines run at or near 9000 RPM all day, and those are pushrod engines. Admittedly they are built to run for only 500 miles, but it can be done. I shift the stroked Pontiac engine in the car you see in my avatar ( 7.6 liters ) at 6000 RPM. It will spin to 6500, but with the iron heads it's already all over. But still you're looking at 60's tech. With the proper aftermarket heads a traditional Pontiac engine can turn 7000 or more.

What seems more improbable is that SSC is claiming the DOHC engine of their own design. The Ultimate Aero blocks were largely GM LS engines, which we can assume the Tuatara engine is still based on. But still, a proprietary DOHC head would be a stretch. Most likely there is a strategic partner doing most of the development work.

SSC approaches their PR in a very odd way. The company will virtually disappear for long stretches of time. I know the last few years have been tough on everybody, but just a reminder here and there that they're still in business might have been appropriate.

Jerod had a login here before, you'd think he would pop in on one of the numerous threads there have been asking about this car over the years, and at least say, "Hey, we're still at it, stay tuned."
 

Last edited by mattjs33; Apr 17, 2013 at 02:44 PM.
Old Apr 17, 2013 | 03:20 PM
  #13  
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Jerod had a login here before, you'd think he would pop in on one of the numerous threads there have been asking about this car over the years, and at least say, "Hey, we're still at it, stay tuned."
I'd have thought, hoped as well.
 
Old Apr 25, 2013 | 03:20 AM
  #14  
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Tuatara engine press release goes out tomorrow....Stay tuned! - https://twitter.com/SSC_Supercars

EDIT:

http://www.sscnorthamerica.com/news-042413.php

Tuatara Engine Package Surpasses All Design Specifications During Testing

WEST RICHLAND, WA (04/24/2013)

With major assembly development entering the final phases for the Tuatara, the engine package completed its final testing and validation during a last full day of dyno testing last week where the newly developed SSC power plant was put through its paces in a grueling effort to find any weaknesses. At completion of all the durability and performance testing, the Tuatara power plant passed all project specifications with flying colors. This newly developed 423 cu.in. twin turbo V-8 engine will come standard in the Tuatara producing 1350 horsepower and a staggering 1280 lb-ft of torque running on standard United States "premium" 91 octane fuel and has also shown that it is easily capable of over 1700 HP for those owners that don't want or need to be buffered by regulations. After three years of engineering, the final results are an amazingly docile package with incredible daily drivable characteristics that truly mask the savage beast within.

"This is a proud moment for all that were part of the engineering team on this project. This amazingly versatile package has already shown that it can easily be driven on a daily basis in any climate or environment in the world and at the same time can roll out of the pit area onto a track like Nurburgring and easily handle any rigors that record will require. Versatile, efficient, docile, savage... Engineering success!" says SSC founder and lead designer Jerod Shelby.

In anticipation of the Tuatara being put through paces by the media and customers, that most supercars won't endure, SSC engineering even required this Tuatara engine to complete a durability test where the engine is run at a set RPM of 5500 and then a massive load is placed on the motor and held there for a full 5 minutes while all facets of the engine internally and externally were data logged. At the 5 minute point, the engine was dropped back to an idle for 30 seconds to let the exhaust valves cool, and then immediately ramped back up to 5500 RPM's for another full 5 minutes of extreme load.

"Even if it were possible to climb a steep and constant hill at 275 mph, with the aerodynamic drag that would be associated with that speed, you would never see the kind of load we are testing our engines at. It was quite an experience to watch an engine be put through these kinds of extreme tests, explains Shelby. I've never personally seen exhaust headers glow orange/red for that long period of time. I was waiting for metal to start dripping on the floor. But not only did metal not turn to liquid during the grueling testing, the engine was torn down for internal inspection when all testing was completed, and every component still looked brand new. The Tuatara is going to be an exciting car that redefines the super car industry," Shelby states with a smile.
 

Last edited by Ecnelis; Apr 25, 2013 at 03:26 AM.
Old Apr 25, 2013 | 05:00 PM
  #15  
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So it appears to me that the whole DOHC thing they were talking about before didn't come to fruition.
 
Old Apr 26, 2013 | 04:42 AM
  #16  
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Great to hear something from them again, we were all wondering if it was going to happen at all.

Can't wait to see the final car!
 
Old Apr 27, 2013 | 12:01 PM
  #17  
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So I read this part with interest:

"This newly developed 423 cu.in. twin turbo V-8 engine will come standard in the Tuatara producing 1350 horsepower and a staggering 1280 lb-ft of torque running on standard United States "premium" 91 octane fuel and has also shown that it is easily capable of over 1700 HP for those owners that don't want or need to be buffered by regulations."(my emphasis added)

The Ultimate Aero never achieved EPA compliance, so is SSC implying that the Tuatara will? Or will potential U.S. owners have to fall into the latter category of "not needing to be buffered by regulations"? Is it any coincidence that the only Ultimate Aero that was ever privately registered in the U.S., was plated in a state that doesn't require emissions testing?

I'm suppose in the Middle East or China there is not much attention paid to such matters, but the U.S. and the EU have similar quite strict and difficult-to-meet regulations regarding emissions, among other things. I find it funny that SSC would imply that there is a version available that does not meet such regulations, when in the past it appears they've made no effort to do so.

It'd be nice to see SSC up their game and bring the Tuatara to market as an EPA-approved car, but I'll believe it when I see it.
 
Old Apr 29, 2013 | 04:56 AM
  #18  
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Looks very much like a NRE engine to me.....
 
Old Apr 29, 2013 | 09:31 AM
  #19  
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It is an NRE engine. Clever spotters on their Facebook page have noted it, SSC basically confirmed it also: https://www.facebook.com/#!/SSCNorthAmerica?fref=ts

Here's NRE's YouTube video:

So the DOHC design is out, and the 9000rpm limit is out. In NRE's video the charts show it hit 1154hp at 6200rpm, but the lead-in claims 1200hp on pump gas. And SSC's press release said it has 1350hp.

Curious.
 
Old Apr 29, 2013 | 11:37 AM
  #20  
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Originally Posted by mattjs33
It is an NRE engine. Clever spotters on their Facebook page have noted it, SSC basically confirmed it also: https://www.facebook.com/#!/SSCNorthAmerica?fref=ts

Here's NRE's YouTube video:

So the DOHC design is out, and the 9000rpm limit is out. In NRE's video the charts show it hit 1154hp at 6200rpm, but the lead-in claims 1200hp on pump gas. And SSC's press release said it has 1350hp.

Curious.
I knew it! Loosers! Liars! And NRE rocks! Just hope its the new one, Revolution Series.
 



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