2009 ZR-1

crzyone · Post by **crzyone** » Thu Dec 20, 2007 11:54 pm

Looks like the new ZR-1 is going to be a brutal car. Love how they have carbon fiber everywhere.

Can't wait to see the vids of this car smoking super cars worth 3x the price

http://www.edmunds.com/insideline/do/Fe ... el..1.*#14

Aaron · Post by **Aaron** » Fri Dec 21, 2007 1:23 am

I wish it had a LSX based 6.0-7.0, all aluminum, 8000rpm DOHC 32v motor. Not only would that be possible, it'd still be a brutal motor, and would still pay tribute if you will to its heritage.

I understand the downfalls, and the advantage of the blown LS9, but I'd rather see it with a DOHC 32v.

crzyone · Post by **crzyone** » Fri Dec 21, 2007 7:22 am

Yeah, would have been fitting for the name. Also would have been cool for them to get the hp of the new viper from a smaller fisplacement V-8.

I like this motor, wonder what a simple pully change will fo for it.

S8n · Post by **S8n** » Fri Dec 21, 2007 9:11 pm

Aaron wrote:I wish it had a LSX based 6.0-7.0, all aluminum, 8000rpm DOHC 32v motor. Not only would that be possible, it'd still be a brutal motor, and would still pay tribute if you will to its heritage.

I understand the downfalls, and the advantage of the blown LS9, but I'd rather see it with a DOHC 32v.

I don't think DOHC heads would have fit without some serious modifications. Didn't they have to widen the C4 ZR1 to fit the engine?

p8ntman442 · Post by **p8ntman442** » Fri Dec 21, 2007 9:46 pm

all that fucking carbon fiber and it weighs in at 3300 lbs. Is that lead ballast over the rears to gain traction?

The Dark Side of Will · Sat Dec 22, 2007 8:45 am

Superchargers are heavy.

I wonder how much it would have weighed with an all aluminum Vortec 8100...

Return of the Big Block Vette!! :thumbleft:

The bit about changing the shock damping for a hard launch is pretty sweet. That's actually making use of advanced technology... now why won't they put those shocks on the ZO6?
That's also active suspension and is thus too high tech even for Formula 1.

p8ntman442 · Post by **p8ntman442** » Sat Dec 22, 2007 9:41 am

In college, I wanted to do an active suspension setup for a senior project, but we had no place to store/test the car, nor the money for the parts. Its deffinatly necessary nowadays. I would like to work for BOSE one day on their suspension program.

Unsafe At Any Speed · Sun Jun 22, 2008 11:06 pm

I just saw one of these a few hours ago. Badass! :thumbleft:

Standard · Post by **Standard** » Fri Jul 11, 2008 1:35 am

ZR1 runs a 7:26.4 lap at Nurburgring

http://reviews.cnet.com/8301-13746_7-9988138-48.html

in car video of the full lap in the link. :thumbleft:

Unsafe At Any Speed · Post by **Unsafe At Any Speed** » Fri Jul 11, 2008 2:15 am

Nice! That's almost three seconds faster than the GT-R's time right?

Oh yeah, the ZR-1 I saw had somewhat bald rear tires and pretty decent rock chips in the front. Somebody had been enjoying it. :thumbleft:

Standard · Post by **Standard** » Fri Jul 11, 2008 4:13 am

It's faster than the GT-R, but I'm not sure how much. I guess the GT-R V-spec is rumored to have run a 7:25 now.

The nice thing about that ZR1 is that it's bone stock aside from the camera and some safety equipment. Stock tires, alignment, and pump gas. Now I just need to find a lot of money so I can afford one.

Atilla the Fun · Post by **Atilla the Fun** » Fri Jul 11, 2008 9:49 am

old ZR1 got widened in the rear for the 315-width tires. Up front, nothing but the engine got widened. Look in the '90 & '91 HotRod magazines, for the feature on the ThunderPower DOHC BBC heads. That wide thing fit an '84-'89 'vette just fine, and it was even wider than the LT5!

THE PUNISHER · Post by **THE PUNISHER** » Fri Jul 11, 2008 10:04 am

there is a really nice 427 Bow tie block Supercharged (Big Block) C4 for sale on corvetteforum.com right now.

No Big Blocks unless they are aluminum , otherwise it's better to throw in an LS1 and shave 75Lbs off an AL head pre 86.5 car

Crossfire injection cars are dirt cheap.

Guy in our club has a 454 C4 , it's not fast and bakes it's brakes constantly.. even with the big brake RPO it sucks balls..

Iron= Gay

The Dark Side of Will · Fri Jul 11, 2008 10:48 am

Atilla the Fun wrote:old ZR1 got widened in the rear for the 315-width tires. Up front, nothing but the engine got widened. Look in the '90 & '91 HotRod magazines, for the feature on the ThunderPower DOHC BBC heads. That wide thing fit an '84-'89 'vette just fine, and it was even wider than the LT5!

http://forums.4wheeloffroad.com/70/6442 ... index.html

Aaron · Post by **Aaron** » Fri Jul 11, 2008 12:50 pm

There's a company making 4 valve heads for the SBC as well, Arao Engineering. Flow numbers look amazing, however the company has quite the unfavorable reputation with taking money and never getting people the product.

Atilla the Fun · Post by **Atilla the Fun** » Fri Jul 11, 2008 12:53 pm

Thanks for the link, I wish I still had the pic of those heads, with their "valve covers" (cam covers?) on, mounted in the 'vette.

Aaron · Post by **Aaron** » Fri Jul 11, 2008 1:04 pm

Atilla the Fun wrote:Thanks for the link, I wish I still had the pic of those heads, with their "valve covers" (cam covers?) on, mounted in the 'vette.

Are these heads DOHC as well? The Arao heads for the SBC are not DOHC, they use special "rocker shafts" to activate 2 valves instead of one. Just checked their website, and Arao now makes a LSX head as well. 405cfm at .6". Holy shit that's amazing, I can't imagine what you could do with a 7.0L with that much flow. 700+whp would be easy. Plus these heads don't add nearly as much weight as a traditional DOHC multivalve setup, as they still use standard cam in block, pushrod OHV design. I really want to build an all aluminum, 7.0L 32v LSX.

SBC head:

THE PUNISHER · Post by **THE PUNISHER** » Fri Jul 11, 2008 1:55 pm

Zora Arkus Duntov (corvette designer from the 50's , just got here in his delorean and wants his technology back

www.ardun.com

Aaron · Post by **Aaron** » Fri Jul 11, 2008 5:33 pm

So I finally just watched the video.

First, that track appears to be really bad in some places, specifically in the high banked, or altitude changing corners. Very bumpy, you can see the car shake to the point that I wouldn't be surprised if the tires left the ground. However, at the time the track was made, they probably never expected to have such fantastic machines on it.

The Vette sounds brilliant, nothing less. I wish I could hear more blower whine though.

Now, it says it beat the GT-R by 3 seconds. Now I'm not sure how much of a difference 3 seconds is on a 7 and a half minute track, but it doesn't sound like much--at all. And looking at the specifications, it's clear to me that the GT-R is completely outclassed. The Vette has the GT-R beat by 158hp and 174ft-lbs. That's a lot. A fuck of a lot. The Corvette also has a more efficient driveline, bigger better brakes, bigger tires, and weighs almost 500lbs less. The only thing the GT-R has going for it is the AWD, but that hurts it in places where it's already hurting (Acceleration). So what gives?

My guess is just that the ZR1 is much more difficult to drive on the edge, mostly because of still small tires having to cope with all of that power, going only to the rear.

Fastback86 · Post by **Fastback86** » Fri Jul 11, 2008 7:57 pm

That, and several automotive magazines believe Nissan is underrating the GT-R's power by 50hp or more. Motor Trend dyno tested on and was getting Nissan-rated crank horsepower at the wheels.