GM to use small turbo V8, ditches pushrods for next Vette! - Page 2 - Miata Turbo Forum - Boost cars, acquire cats.

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Old 06-04-2011, 02:21 AM   #21
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Originally Posted by nitrodann View Post
Its all good to make 400hp out of a 7 litre. J is going to make 600 with a 1.6

Dann
The 7 liter LS7 currently makes 505hp in the C6 Z06 Corvette, the LS2 made 400 horsepower in the base C6 from '05-07', the engine was also put in the 6.0 liter GTO. Like elesjuan said, that engine will last forever and get you good mpg's too. Can you think of another engine that is capable of 30+ mpg and 400 hp from the factory? I can't.
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Old 06-04-2011, 02:34 AM   #22
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Whatever the excuse, I hope GM makes this engine. And maybe a 1/2 sized version for their 1800lb Miata killer.

GM can be like a 400lb blindfolded retard trying to hit a Pinata. Somebody please aim them in the right direction!
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Old 06-04-2011, 02:41 AM   #23
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Ill rephraze.
What if the head design that goes into an f20c was put into a 7.2L v8 or 10. With all the strength of the factory f20c bottom end (im talking 350rwhp on a stock 2 L) with a small for the capacity turbo.

Sure there wont be as many but im damn sure it would produce more and have better mpg.

Its technology, something the SBC doesnt have behind it. But im no v8 guy so maybe Ill leave this argument to the yanks haha.

Dann
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Old 06-04-2011, 03:16 AM   #24
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Originally Posted by nitrodann View Post
Its technology, something the SBC doesnt have behind it. But im no v8 guy so maybe Ill leave this argument to the yanks haha.

Dann
I disagree with you once again. There is a LOT of technology, research and development in modern day small block chevy engines. LS9 sound familiar? Take a 1975 5.7 V8. Made what, 140hp in a truck?? Take a 2010 L33 aluminum 327 which makes 330hp and 350# tq STOCK, significantly less supposed hydrocarbon emissions, much better fuel economy. That is technology.

Not a v8 fan? Just listen to the audio in this video. Forget about the 2200# car which runs sub 12 second passes now.. just the sound. Make your honda engine sound like that and I'm sold.



Personally I don't give a **** how much technology and trub0z you put on an engine, if it sounds like a buzz bombing pile of **** I'll still hate it. While that video might contain a motor that doesn't sound very good under cruise, there are few engines that sound as good under WOT. Period.

Thats just my opinion though, I could be wrong.
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Old 06-04-2011, 04:47 AM   #25
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Originally Posted by nitrodann View Post
. . . Its technology, something the SBC doesnt have behind it. . .
I also respectfully disagree with this.

Double magic hands have no way to express how cool these engines are. Even with double dog magic, LS engines are more than capable of turning a Gay boy straight on 1 hard pull.
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Old 06-04-2011, 06:22 AM   #26
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That sounds like it's broken at idle...
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Old 06-04-2011, 11:02 AM   #27
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This is a sad day. Long live the SBC!!!
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Old 06-04-2011, 11:07 AM   #28
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I can't find the pics to back it up from Mulsanne's Corner, but the SBC is still going into LMP2 cars as the budget, reliable workhorse in the 24-Hours of leMans in 2011.
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Old 06-04-2011, 11:17 AM   #29
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Originally Posted by Gotpsi? View Post
The only reason they are going to it is because of the crazy emissions laws. I believe this engine to be the end of the crazy wide use of new gm engine swaps in hot rods and other custom uses. As cool as it is there probably will be far less available aftermarket heads/cams/stroker kits for them that make the old small block and current LS engine so popular. This is already seen in the ford motors of current days, there is just not much out there.
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Right. So Ford 5.0's of the 80s are a piece of history now. Oh wait. . .
You don't think the new 5.0 is similar to the old windsor 5.0 in any way other than displacement, do you?

Gotpsi's point is that compared to the equivalent era GM pushrod engine, there is little available aftermarket and therefore popularity for Ford's modular engines. I'm sure it'll be the same for the Coyote and it will be the same if GM makes a DOHC V8. Oh wait, they have for a long time, the Northstar V8. You see those in swaps everywhere, just like the OHC ford engines!
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Old 06-04-2011, 11:34 AM   #30
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Im sure they wall still swap them, my point is the aftermarket. You wont be able to just easily buy a set of heads and a cam, bolt it on and almost double your hp and torque like you can right now.
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Old 06-04-2011, 12:01 PM   #31
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Originally Posted by elesjuan View Post
I'd like to remind everyone of something...

The most powerful piston driven fuel powered engines that exist run PUSHRODS.
They also get overhauled every few miles.

That is sort of like comparing a 757 to a Saturn-V rocket. Yeah, the Saturn-V is a much higher-performance vehicle, but the 757 is expected to get up every morning, start on the first turn, fly from coast-to-coast and back, and then get up tomorrow and do the same thing again.


Ok, so there's a huge selection of aftermarket heads, cams, etc., for the good ole SBC engine. And I agree that there probably will never be the same parts support for this new design. My earlier point is that it won't be necessary. Once you've shifted mindset to forced induction, who needs a bunch of fancy, free-flowing hardware? How many of us are running aftermarket heads?
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Old 06-04-2011, 12:42 PM   #32
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How many of us are running aftermarket heads?
How many aftermarket heads are available for our application?
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Old 06-04-2011, 01:10 PM   #33
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How many aftermarket heads are available for our application?
That's exactly my point. It hasn't stopped us from making 140-160 HP / liter in streetable trim, and that's without direct injection and on what has got to be acknowledged as one of the poorer-flowing DOHC heads in history.

You don't need things like aftermarket heads to do silly things with small-displacement, high-revving engines, especially when a basic forced induction system has already been provided for you. And for want of fancy heads and the like is great creativity spawned.

I expect that a Subabishi-like tuner community will evolve around the new engine. And that's a Good Thing™.
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Old 06-04-2011, 01:42 PM   #34
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I like it. **** yeah. Let's hope they build it right with forged goodies all around ready for 900hp on a stock longblock.
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Old 06-04-2011, 05:32 PM   #35
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80.5mm bore, awesome more pistons choices for us 1.6l guys!
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Old 06-04-2011, 06:13 PM   #36
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While I love progress, I worry that all this new tech will sour the enthusiast's experience. I like Japanese and American cars because generally, Euro cars, with 56 different computers just to decide how quickly to roll down the windows, are a ******* headache.

I always liked the vette, as it was a hell of a car and to get comparable performance out of a Euro, you were looking at some Audi job with 7 radiators (that's not a joke, check out any recent RS). The corvette was cool because it was a top-tier car, and any idiot to afford to live with it. They always say about Ferraris, "the expensive part isn't buying it, it's owning it." The nice thing about vettes is if you could buy it, you could probably afford it.

So while I love progress, and the thought of a small v8 spinning to 10k does make my nipples hard, I worry, is this next corvette going to have 7 radiators and 56 computers? THAT would kill the vette for me. I could care less about what kind of engine, or mid-engine, etc blah blah blah. Will I be petrified in fear every-time I attempt an oil change? Honestly, I'm sort of hoping GM can bring high-end exotica to the masses. THAT would make this new vette a winner. Small displacement, high rpm power that isn't a total bitch to deal with.
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Old 06-04-2011, 06:17 PM   #37
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Corvettes are OK but men drive Miatas.
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Old 06-04-2011, 08:01 PM   #38
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Quote:
Originally Posted by elesjuan View Post
Not a v8 fan? Just listen to the audio in this video. Forget about the 2200# car which runs sub 12 second passes now.. just the sound. Make your honda engine sound like that and I'm sold.

Quote:
Originally Posted by richyvrlimited View Post
That sounds like it's broken at idle...
It sounds like it's going to eat your family at idle.

Jesus ******* Christ that sounds ferocious...
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Old 06-04-2011, 08:50 PM   #39
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Originally Posted by TurboTim View Post
... there is little available aftermarket and therefore popularity for Ford's modular engines.
Seriously? Thats wrong on both counts. The Ford Modular V8 has a HUGE after market because the engine his HUGELY popular. Check out this list of Modular powered vehicles. If you want to see there after market go to your local drag strip or autox course and see whats under the hood of any 96+ V8 Mustang. You'll see a crap load of 2, 3 or 4 valve SOHC or DOHC V8's probably with some after market goodies bolted on.
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Old 06-04-2011, 10:40 PM   #40
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Originally Posted by Gearhead_318 View Post
Seriously? Thats wrong on both counts. The Ford Modular V8 has a HUGE after market because the engine his HUGELY popular. Check out this list of Modular powered vehicles. If you want to see there after market go to your local drag strip or autox course and see whats under the hood of any 96+ V8 Mustang. You'll see a crap load of 2, 3 or 4 valve SOHC or DOHC V8's probably with some after market goodies bolted on.
They still have a 10th of the aftermarket support the pushrod engines do.

A 1998 BONE STOCK LONGBLOCK (weakest of the LS's) with 80k miles made 833rwhp with a single on it back in 2001-2002 era.
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