ukrbmw

Guys,

Curious if you've seen or know somebody who runs one and timed it. Recent Ring run made me curious how that translates in to our local track times. Unfortunately a search didn't seem to turn up any results. Car is very expensive so I'm wondering if nobody is really pushing it all the way, especially on slicks. Than again, I keep seeing more expensive cars out there being pushed pretty hard.

Thanks

CHJ In Virginia

Saw one at a NASA event at VIR full course earlier this year. Driver had stickies on for tires, but no other apparent mods. He was running 2:12'S or so - not really that fast since there C-5 Z06's that run in the less than 2:10 range. Saw another one at Summit Main, but never got a chance to put a clock on him. He put the car in the wall 1st session and tore it up pretty badly.

RaleighSS

Good question ... I have seen them at CMP / VIR but drivers were taking it easy and not pushing the cars so no real valid lap times...

wtknght1

If we (T1 guys) can run a 2:01 at VIR with 420HP and Hoosier A tires, then a ZR1 with 600+ HP, the extra wide track, downforce, etc., should be in the low to mid 1:50s I would think.

AU N EGL

It SHOULD Chris but never have seen one under 2:10

the C5Z with stock LS6 ( 385 rwhp) in NASA ST2 with full aero and fresh "A"s are low 2s and a few guys are UNDER 2:00 min now


Part of that is few ZR1s are in race trim, and fewer are pushed very hard.
There is one that shows up at the Glen on occasion and another that shows up at Sebring. Both ZR1a in NASA SU class, Both are beat by C6Z06s in ST1 AND the C5Zs in ST2

wtknght1

Ok, let's put it this way, give ME a ZR1 with Hoosiers, and I'll run a low to mid 1:50s. he he

And speaking of that, I have an offer for someone if they are interested. If anyone has a ZR1 and plans to do a DE event, I'll buy you a set of Hoosiers for your car and instruct you for free...if you'll let me drive the car a few sessions (in the instructor group). You are of course free to ride along as well. You can keep the tires at the end of the weekend.

Anyone interested? Anyone? Beuler? Anyone?

AU N EGL

No doubt Chris No Doubt

AU N EGL

One can check the NASA Regions and Lap Records here

http://www.nasa-tt.com/Home

look at each region and then each track.

Those times speak for themselves

John Shiels

the HP might not buy you the 10 seconds. The lower you go the harder it is to cut more time as you know I am sure. What are rolex cars running 1:45 last time I watched? ZR-1 would be so far off the pace of one of them it would be funny but it is only 5 seconds from 1:50.

I heard they were running towards lower 1:3X.XX at Pocono Long Course. Not that impressed with that but probably not really on the edge.

wtknght1

What I mean by "low to mid 1:50s" is between 1:50 and 1:55. The extra HP, massive brakes, extra downforce, and the lighter weight should easily be worth 6 or 7 seconds over my 420HP, 3450lb LS3 T1 car.

John Shiels

What did GT-1 cars run at VIR? I saw them but don't want to say because I forgot.

ukrbmw

Well, maybe in theory - I'm trying to find out what anybody saw in real life.

Plus, can't you run remote shocks in T1? And I know it took some time to really setup T1 cars, as I'm sure it would take time to dial in ZR1.

I also think it should be maybe a 1:57-59 car - VIR seems to favor good downforce which ZR1 doesn't really develop with out a real wing on the rear. Extra power will definitely make a good bit of difference with basically 3 long straights.

wtknght1

Yeah, we can run remote shocks...but the quality of the new GM shocks are superb. And yes, it would take a bit of time to dial in a new ZR1, but I'm talking about one that was reasonably well cornerweighted, tuned, etc. That wouldn't take much.

And the ZR1 has a splitter, a small rear "lip", a much wider track, 200+ lbs lighter, etc. which is a lot more than my 08 bodied T1 car has. The Grand Sport bodied T1 cars have already shown a significant time improvement, so I know there's a second or two just in the bodywork and track improvement alone.

AU N EGL

The straights do, 170s is not out of the possibility on the back straight and 150s on the front. Been there when I drove the ZR1 on VIR.

ukrbmw

Ok. We need a ZR1 owner to volunteer!!!

rbl

Murf ran 1:52 (about his average) and lost to another guy who ran ~ 1:51 because he blew a cooler line.

rbl

Murff (Scott Murphy) ran ~1:52 (about his average) and lost to another guy who ran ~ 1:51 because he lost a cooling line.

John Shiels

that is what I thought I remembered when I saw a guy testing a GT-1 there 5 years ago. ZR-1 would not be close to a GT-1 car by a long shot.

wtknght1

Back in 09, GT1s were doing 1:50s in the race, so qual times could/should have been in the high 49s. None of those GT1s were top flight efforts either. A 1:55 (or better)for a ZR1 shouldn't be that hard with just decent conditions.

John Shiels

I still don't think a ZR-1 is that close to a GT-1. Weight and body alone. Yes, no? May be Hertz has some I'll split it with ya!