2023 Z06 Corvette

[fgpsi]

coming to aus too !

https://www.carsguide.com.au/car-new...breathing-gmsv

[slowsnake]

As much as I love em and have owned a Vette, this new one just does not look like a Vette?..it seems now that cars all sort of look very similar, but I would own it, it would kill me at my age before I killed it at your age!.....

[oldel]

I don't really care for the car, but the engine is very interesting. Chev are going DOHC, high compression (12:1), flat plane crank, intake tricks, tuned headers, over square so high revving etc.
Basically they're going euro style with extra tricks on their own in the valve train. 670HP out of 5.5L (naturally aspirated).
That's more power than the old supercharged 6.2L LT1 in the last model.

Has heaps less torque though - but you'd expect that when no supercharger, smaller engine, less stroke. But yeah, that's the euro way for cars, and they have finally stopped putting a truck motor in a vette LOL.

E: Found this to flesh out the engine as I mentioned because no one else in the links given is talking about how.

[chevypower]

Originally Posted by oldel

they stopped putting a truck motor in a vette LOL.

The Stingray won’t change, and there’s nothing wrong with that motor either. Both have their place.

[slowsnake]

It may look good in the USA on a road built for it, but it looks like a track car to me, the Vette always represented a car that an average man could own, but they are built like a Ferrari or McClaren now, but in saying that it's still a Chevy, hopefully built at Bowling Green,
But I love the 1966 Vette, it's shape and styling fitted the 60's.
Big block Tri - power though, the later shape defines Corvette, 68 to 72 I thing the chrome bumpers, oh and L88.

[DJM83]

I reckon this model is a decent step backwards over the last one.

[nstg8a]

Originally Posted by DJM83

I reckon this model is a decent step backwards over the last one.

In what way?


Sent from my iPhone using Tapatalk

[ivorya]

https://www.youtube.com/watch?v=ZigOVLFkTEM

[DJM83]

Originally Posted by nstg8a

In what way?


Sent from my iPhone using Tapatalk

Sorry.
Definitely meant looks wise.
I don't follow Corvettes enough to know the difference mechanically between the 2.

[Polyal]

Originally Posted by DJM83

Sorry.
Definitely meant looks wise.
I don't follow Corvettes enough to know the difference mechanically between the 2.

I agree, to me Corvette is FR but hey the results dont lie. But just looks like another generic sportscar now.

[PooDog]

I'll bet it screams ......see Ford thats how you do it ....oversquare bore change your fuc#ing tooling, we could have had so much more versatility with our vee eights

[Franco Cozzo]

Surely losing the supercharger and all that low down torque is a step backwards? What's the price of one of these in comparison to something like an Audi R8/Lamborghini Huracan? (In the US market)

I feel like the path they've gone with that powertrain puts them competing directly with European exotics rather than running their own race as a viable alternative with their forced induction V8 offering. It takes away the appeal of an American 'supercar' when you take away their typical thunderous, big engine, ****loads of torque style of making cars that they're known for.

[PooDog]

But just look at it looks just like a euro supercar , lightweight mega revs is obviously what theyre after with the flat plane crank , will be interesting what it does around the Nurburgring

Bet it sounds cool

[slowsnake]

The Corvette is the same as the Mustang, Imagined in someone's mind in the 60's, then converted into a real living breathing monster, built for road or track, this Vette is a Vette by name only, at least the current stanger looks a bit like the original.

[stevefreestyle]

Originally Posted by PooDog

I'll bet it screams ......see Ford thats how you do it ....oversquare bore change your fuc#ing tooling, we could have had so much more versatility with our vee eights

So presumably you do not know that Ford beat GM to this configuration (only with 5.2L) in 2015 with the GT350, with a DOHC, 4Valve, FPC & 8250 Rpm Redline - based on the old Gen 1 Coyote?

Also sounds like you have no idea of the current Mustang GT Quad Cam 4 Valve with a redline of 7500?

BTW, the longer the stroke, the more the versatility with greater Torque - not less.
https://www.motorauthority.com/news/...29-lb-ft-video

[383hq]

Originally Posted by Franco Cozzo

Surely losing the supercharger and all that low down torque is a step backwards? What's the price of one of these in comparison to something like an Audi R8/Lamborghini Huracan? (In the US market)

I feel like the path they've gone with that powertrain puts them competing directly with European exotics rather than running their own race as a viable alternative with their forced induction V8 offering. It takes away the appeal of an American 'supercar' when you take away their typical thunderous, big engine, ****loads of torque style of making cars that they're known for.

Never fear, if you're in the market in the near term, you'll definately get aftermarket support for boost (perhaps just the generic C8 tho), but if you're prepared to wait and play to GM's timelines, they'll likely release a boosted Vette, Perhaps it'll be called a ZR1, or a Zora or..... in a few years time.

its a very successful strategy played by a few car makers recently - Porsche, AMG etc. Punters prefer the GT3 to the Porsche Turbo for this type of offering, which may be why they've gone down "that Euro path" However emissions laws changed driving the focus on boosted ICE for many. GM do admit they had reached their limits with the Front engine Rear drive strategy on this platform.

standard C8 rrp is circa $67k usd stateside (2LT) but circa $110k usd landed in Oz

[PooDog]

Originally Posted by stevefreestyle

So presumably you do not know that Ford beat GM to this configuration (only with 5.2L) in 2015 with the GT350, with a DOHC, 4Valve, FPC & 8250 Rpm Redline - based on the old Gen 1 Coyote?

Also sounds like you have no idea of the current Mustang GT Quad Cam 4 Valve with a redline of 7500?

BTW, the longer the stroke, the more the versatility with greater Torque - not less.
https://www.motorauthority.com/news/...29-lb-ft-video

Here's some research for you to do google what's an over square motor

[PooDog]

And by Versatility I was meaning an over square motor can be stroked to different capacities where the coyote is pidgeon holed as 1 capacity......I guess you could strike it smaller like the 4.6 l but why ? It's already small capacity

[stevefreestyle]

Originally Posted by PooDog

And by Versatility I was meaning an over square motor can be stroked to different capacities where the coyote is pidgeon holed as 1 capacity......I guess you could strike it smaller like the 4.6 l but why ? It's already small capacity

Yes, the 5.0 Coyote is a Square motor, and you cant do much with it to increase capacity over the 5.2L Voodoo or the 580Hp 5.2L Aluminator, although somehow DJR have streached it to 5.4L, however this would be going Undersquare (Longer Stroke). Although the old 5.4L Modular Boss 260-315 was Undersquare by around 14mm - and still was lively in the higher revs - the GT 315 to 6500 RPM!

[WMD351]

Originally Posted by PooDog

I'll bet it screams ......see Ford thats how you do it ....oversquare bore change your fuc#ing tooling, we could have had so much more versatility with our vee eights

Not much but here's a little teaser for you
https://www.youtube.com/watch?v=8iQqi9s2Q2E

[MITCHAY]

I love this car, I really do. But it looks nothing like a Corvette so it's a big ****en adjustment

[Mulva]

I actually don't mind the looks. Certainly does not look like a Vette, but does look a lot like the exotics that sell for several $100k's (low-slung wedge-shaped cars that sell for two to three times the cost of the Vette, if not more).

Non-car people would look at it and assume it is a Ferrari...I'm serious when I say that.

[oldel]

Yeah. Bare in mind affordable euro v8s are probably going to disappear soon as the mainstream (non supercar) euros automakers go to smaller engines or electric. This corvette is going into probably tapping into that market too.

[MITCHAY]

It looks really good. But a Corvette is Murica muscle and not a Euro supercar. Well that's the way I have always thought about it.

[PooDog]

Originally Posted by stevefreestyle

So presumably you do not know that Ford beat GM to this configuration (only with 5.2L) in 2015 with the GT350, with a DOHC, 4Valve, FPC & 8250 Rpm Redline - based on the old Gen 1 Coyote?

Also sounds like you have no idea of the current Mustang GT Quad Cam 4 Valve with a redline of 7500?

BTW, the longer the stroke, the more the versatility with greater Torque - not less.
https://www.motorauthority.com/news/...29-lb-ft-video

Im no Chevy fan (check my signature) but this new LT6 mill is pretty impressive check these figures

Voodoo 5.2l
526hp@7500rpm
580nm@4750rpm
redline 8200rpm (from memory )

Chev LT6 5.5L
670HP@8400rpm
620nm@6300rpm
redline 8600rpm

interestingly theres a motortrend article about this mill that credits it being oversquare as one of its best features....you can see from the figures it doesnt lack for torque just higher up with an eight speed box behind it (thought they might have used the 10 speed) this thing will be a weapon around a track if it handles

sometimes its really hard work being a Ford fan , when i think back to when they designed the Modular series and decided to stick with the tooling and make small bore mills ,took a punt on mills getting smaller (no one thought there would be another big capacity v8 war) then rather than change their mind (realising they needed bigger mills for trucks etc ) they develop complete new engines eg 7.3L which must cost squillions more ?

look at the LS everytime engine labs or someone does a HP comparison LS/Coyote the LS cleans up because it can be stroked to 7 litre the little ford does well but lacks the versatility because of its bore size

I guess someone high up in Ford thinks its more important to save face than go back on a decision ......anyhoo guess the end of the ICE is nigh

[kypez]

I'd have been keen if they came in a manual. Yes, slower than the Auto, but I enjoy Manuals; I don't enjoy Autos.

[fgpsi]

that sounds mad. like my vacuum cleaner

call me old fashioned but I reckon the stingray sounds better now especially with aftermarket exhaust

if i had the cash i'd buy a vette for the muscle car sound, not ferarri sounds

[stevefreestyle]

Originally Posted by PooDog

Im no Chevy fan (check my signature) but this new LT6 mill is pretty impressive check these figures

Voodoo 5.2l
526hp@7500rpm
580nm@4750rpm
redline 8200rpm (from memory )

Chev LT6 5.5L
670HP@8400rpm
620nm@6300rpm
redline 8600rpm

interestingly theres a motortrend article about this mill that credits it being oversquare as one of its best features....you can see from the figures it doesnt lack for torque just higher up with an eight speed box behind it (thought they might have used the 10 speed) this thing will be a weapon around a track if it handles

sometimes its really hard work being a Ford fan , when i think back to when they designed the Modular series and decided to stick with the tooling and make small bore mills ,took a punt on mills getting smaller (no one thought there would be another big capacity v8 war) then rather than change their mind (realising they needed bigger mills for trucks etc ) they develop complete new engines eg 7.3L which must cost squillions more ?

look at the LS everytime engine labs or someone does a HP comparison LS/Coyote the LS cleans up because it can be stroked to 7 litre the little ford does well but lacks the versatility because of its bore size

I guess someone high up in Ford thinks its more important to save face than go back on a decision ......anyhoo guess the end of the ICE is nigh

I agree firstly Ford made a big error by sticking to the previous 4.6 Bore Spacing (100mm?) to utilise existing production machinery, and secondly this GM thing is a serious engine, it is probably the reason Ford have discontinued the GT350. Although the GT350 Voodoo Redlines at 8250, which at the time was stratospheric, Ford should have made with it with Dual Throttle Bodies, as this GM now has.

However with the 5.2L GT350 Voodoo, Ford pioneered the "Affordable" Production V8 offering DOHC, 4 Valves, Coil On Plug, VVT, Wire Plasma Bore Lining, CNC High Flow Heads AND Flat Plane Crank, although was based on the early Gen 1 Coyote (which also had the Bore & Stroke limitations which you mention), and would no doubt benefit if it built was off the superior Gen 3 engine.

It will be interesting to see Ford's answer to this engine.

[kypez]

Originally Posted by fgpsi

that sounds mad. like my vacuum cleaner

Sounds like you have a great sounding vacuum cleaner!

Sent from my Pixel 5 using Tapatalk

[slowsnake]

Just as a point of interest, the F1 Race cars between 2006 and 2013 were all oversguare, bore was 2.47 to 1 ratio from memory, then they changed to the poxy sound they make now, yuk, but you get used to it!
The most oversquare engine was a Ducati motor cycle, some ridiculous ratio I think was 1.84 to 1, no ****, forget model.