ZR-1 Net Registry Forums - C7 ZR breaks cover

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Re: C7 ZR breaks cover

Quote:

Originally Posted by Paul Workman (Post 270513)

"Paul's 90% group"? Oh, hell no! No "WAXER" here!! I'm with Dom's "10" - along with you and many others here, I recon. (Thar ain't no steeeking pushrod Corvettes in MY garage...yet![-X:p (However, I would allow a C6Z06!:dancing)

But, if I win the lottery, and there ain't no new screaming DOHC, mid-engine Corvette by then, I may have to consider the F-F-F...Ford GT (or the like) in order to get my high rev "FIX".:dancing

Sorry Paul didn’t mean to imply you were part of that group. Simply that it was the group you were referring to.

Bob,
The Evo ricer crowd and others like it that the GenXer’s and Millenials identify with are exactly the ones GM is aiming for! They are tomorrow’s Corvette Owners.
H
:cheers:

C7 ZR breaks cover

Quote:

Originally Posted by Paul Workman (Post 270513)

Thar ain't no steeeking pushrod Corvettes in MY garage...yet!

You make Ami keep her 69 outside?

Sent from my iPhone using ZR-1 Net Registry

Re: C7 ZR breaks cover

Quote:

Originally Posted by Ccmano (Post 270518)

U don’t see any pushrod motors being top dog at 1/2 mile events. They’re GTRs,
Gallardo, EVOs, 488s.

Re: C7 ZR breaks cover

Quote:

Originally Posted by Ccmano (Post 270479)

While I agree that ideally the LT5 moniker should be reserved for a more “special” engine. Every time I get in my 08 LS3 I am reminded of the easy power and torque these engines put out. I simply have a Vararam cold air intake and a canned tune, I make 400 rwhp. There is gobs of torque through the entire power band. That’s not even the current generation of engines.

I guess I’m saying that they really don’t need to do anything exotic to get large amounts of reliable power. Sure I would luv to see high reving twin cam, vvt, direct injected, twin charged etc. engine.

My biggest fear is that with the mid-engined, twincam 2019 or whatever Corvette, they price the car out of reach. Historically the appeal of Corvette is that of a relatively affordable everymans sports car that can run with more expensive cars. Lose that and Corvette is no longer special. Any of today’s manufacturers can build an expensive, powerful exotic sports car.

Even our ZR-1’s were, back in the day, a bargain for the power and performance you got relative to the competition.
H
:cheers:

Hans
You left out that your LS3 is 376 cubic inches.
An LT5 350 CI can also make 400RWHP with intake porting and newer CATS/ exhaust.
Lets compare apples to apples.
I'm in the process of building a 391ci LT5 looking to get close to 550+RWHP then we can compare torque thru the entire power band.
We are getting the same HP numbers out of the LT5 as any LS based motor (apples to apples) with 30 year old technology and an ECM that has less technology then your old flip phone :-D now imagine if we can add VVT etc.

DOHC TT mid engine priced out of reach compared to what?
I don't see to many 800+hp cars for $100,000- $150,000

Pete

Re: C7 ZR breaks cover

Quote:

Originally Posted by WARP TEN (Post 270508)

Looks to me that the designers are shooting for the Mitsu Evo crowd....Bob

Yep. Looks like a C7 mated with a new Civic Si. I like the wide-body look of the Z06, but this new ZR1 is absolutely horrendous.

Re: C7 ZR breaks cover

Quote:

Originally Posted by KILLSHOTS (Post 270553)

Yep. Looks like a C7 mated with a new Civic Si. I like the wide-body look of the Z06, but this new ZR1 is absolutely horrendous.

Honda Civic Type R
Great little pocket rocket...
But, OMG, UGLY!!!!!
(not to mention 4 doors)
I know... they didn't dream it, or the C7 ZR1,
up with us Boomers in mind...

Re: C7 ZR breaks cover

Quote:

Originally Posted by Mystic ZR-1 (Post 270515)

They ain't dieing off like our crowd...

Aiy? What did you say? I can't hear you. Dagnabit, where are my hearing aids?...Bob

Re: C7 ZR breaks cover

Quote:

Originally Posted by WARP TEN (Post 270561)

Aiy? What did you say? I can't hear you. Dagnabit, where are my hearing aids?...Bob

Bob,

I heard you call him a young whippersnapper!

Re: C7 ZR breaks cover

Quote:

Originally Posted by Pete (Post 270544)

(snip)
Lets compare apples to apples.
I'm in the process of building a 391ci LT5 looking to get close to 550+RWHP then we can compare torque thru the entire power band.
We are getting the same HP numbers out of the LT5 as any LS based motor (apples to apples) with 30 year old technology and an ECM that has less technology then your old flip phone :-D now imagine if we can add VVT etc.

DOHC TT mid engine priced out of reach compared to what?
I don't see to many 800+hp cars for $100,000- $150,000

Pete

If a car with Pete's 391 in it makes 550 at the wheels, using the accepted 82% factor for parasitic loss in a C4 manual powertrain, that's about 670 at the flywheel, which is, indeed, impressive.

The new (and apparently much-hated) LT5 makes 755 SAE net horsepower from 376 cubic inches. Even with the supercharger on it, it weighs less than fully-dressed LT5.

So, the new LT5 has less displacement, is smaller on the outside, is lighter and makes almost 80 more horsepower than a 391 built with the most modern resources one can bring to the original LT5. It also meets GM durability schedules and passes Federal emissions standards.

A year or so ago info "leaked" out of GM implying that the "new" LT5 was going to be a 6.2 L DOHC NA engine but clearly that was "fake news". Nevertheless, one can only wonder if GM Global Propulsion Systems is working on a DOHC 6.2 (LT6 or L88?) for the coming "mid-engine car."

I'm looking forward to seeing credible power and torque dyno numbers from Pete's 670-hp 391.

Are you going to post that info when it becomes available, Pete?

Re: C7 ZR breaks cover

Here’s Mercury Marine showing how u make 750hp NA using LS architecture w a an engine footprint no latger than an LS7. Its as compact and as low as an LS 7 motor using in block cam. It is an LS7 w DOHC Cylinder heads. No FI needed for what is new gen LT5 power. Don’t think anyone could argue w MMR reliability and durability.

http://www.thedrive.com/video/11943/...xid=emailshare