rcallen484

See this thread:

http://forums.corvetteforum.com/c7-g...plication.html

WeaponsGradeTorque

Just saw this. Very interesting.

rcallen484

Could be a real game changer if that thing solves the heat soak issue.

WeaponsGradeTorque

I was thinking the exact same thing. A centri+V8 is a perfect combination.


I think this is game changing. I agree with you on that too. This new motor is going to be an absolute technological marvel making insane power with high efficiency. It will turn the NA people into believers.

sam90lx

Centri would be much better than PD so I am excited again!

Unreal

Centri like that may not be any better than a PD. The issues isn't the rotors for heat soak, but the small intercoolers and water system used. You won't be able to run a large air/air with that, it would have a similar intercooler to a PD.

WeaponsGradeTorque

Ok, then why do you suppose GM went with type of S/C instead of what they did on the ZR1? Guess we will find out soon. I am very interested to see the results.

NytmereZ

That looks very very cool, that being said there is a big difference in power delivery with centi vs PD, some people like one, some the other, I can't wait to see the results , on paper it looks like a extremely high tech version(obviously) of what Paxton uses on carb cars.... Very exciting

Corvettinator

Better powerband.

ChevyChad

So, if its driven off the crank directly, I guess that would eliminate belt slip... And, would also eliminate the ease of changing a pulley to increase boost.. Which is bad for hotrodders, but great for OEM warranties I suppose.

ChucksZ06

What makes anyone think this patent has a thing to do with the lt4?

NytmereZ

No centri's suffer from belt slip as well, pulley change is just as easy.

NytmereZ

All forced induction suffer from heat soak its just a fact, all you can do is help minimize it via better intercooling, meth does a great job when combined with a good intercooling system.

WeaponsGradeTorque

Good question. How hard is it going to be to turn up the boost for aftermarket upgrades?

I Bin Therbefor

It is very likely that the set up shown in this patent will NOT have an intercooler. A DI engine does not require an intercooler to keep a combustionable mixture from combusting. There is no combustional mixture until combustion is desired. At that point the fuel is injected directly into the cylinder and ignition initiated by the sparkplug. For an example, look at the McLaren twin turbo V8. No intercooler. Lots of hp from 3.8 ltrs, about 231 ci.

NytmereZ

There is no way it won't have an intercooler, also you cannot look at Mclaren which is a million dollar car and do a comparo.
Having the blower sitting on top of the motor will create a ton of heat, if you look at the intercoolers of the Zr1 you can see from the inside that the fins break away from all the heat.
It will have an intercooler or Chevy will have big problems, detination being the biggest problem.

SBC_and_a_stick

Exactly. Furthermore, remember the leaked boost gauge?


Looks like TVS not centri.

It also seems to redline at 7.5 psi or so. This is more in line with 605 to 620hp estimates not 660hp. 660hp would require ~10.5 psi, ZR1 like, and forged internals.

Maybe the reason the blower looks so thin is because this is the smaller TVS 1900 that goes on the Z06. Combine that with the taller heads for DI and it seems very small in height.

Compare to ZR1:

ChevyChad

I know all about conventional centrifugal superchargers. I have tons of experience with them. The way this patent describes this new style though is completely different. Did you even look at the patent this thread is describing? It's a centrifugal compressor driven off a direct drive shaft from the crank that is vertical and resides in the valley of the engine. No belts, no pulleys.


How do you know where redline is? Are you just guessing as a percentage of how far the gauge goes (up to 12psi)? Don't forget that these gauge clusters are digital, and that "12" could be changed to any other number very easily. It's not like it's printed on.

Also, you have no way to know what boost would be required to reach 660 HP without knowing all the other specs of the engine such as displacement and efficiency of the entire setup.

MX621

The McLaren does indeed have a water to air intercooler.. its a mechanical pump driven off the water pump for the engine.

I Bin Therbefor

Not only that but it doesn't have DI

I really got that one mixed up