67z vs 93z
 

I was up at the bar two nights ago and the owner bought a 93 z-28 camaro new. Anyhow after a fair amount of booze he thinks he can out run my stock 67Z-28 on a Quarter mile track. Considering I have races at Eddyville Raceway for years. I explained I would kick is A$$ in the Quarter mile. How fast are the lt-1s?

Re: 67z vs 93z
 

Tires will be a BIG factor!

Re: 67z vs 93z
 

Give it a go,I have eaten the odd 90s car with the LT1 at the track with my 68 z all stock with bias ply. Lt 1 cars do not scare me but the LS 1 cars are crazy quike

Re: 67z vs 93z
 

My stock '97 LT1 convert (auto) runs low 14's.

Re: 67z vs 93z
 

I used to have a stock 69 Z that raced a couple times at Eville. I always left at 2,000 RPM he wont know that. https://www.yenko.net/ubbthreads/imag...iggthumpup.gif

Re: 67z vs 93z
 

In the October 1996 Car & Driver Jerry M ran his restored Tahoe Turquoise '67 Z/28 against a new '97 Z convert and a '97 Z28 SS LT4. 15.30/97 for the '67; 14.7/95 for the convert, 13.6/105 for the LT4.

Re: 67z vs 93z
 

One things for sure,they would be a lot closer in the quarter than on a road course.

Re: 67z vs 93z
 

He will eat you up Kim! Especially if he can drive a little. If your 67 has a 4:56 rear and some better tires than it would be closer. https://www.yenko.net/ubbthreads/imag...ins/3gears.gif https://www.yenko.net/ubbthreads/imag...ouguysrock.gif

Re: 67z vs 93z
 

I had a couple friends in from out of town, and they wondered which was quicker in the quarter, the freshly restored bone stock (excl. 235 BFGs on the rear)'69 Z, or the bone stock '95 Z vert 6-spd sitting next to it. We took 'em out to see.

Two passes. '95 Z by at least a couple car lengths both times.

JB

Re: 67z vs 93z
 

I bought a new '93 Six Speed and ran it stock at 'da Grove.

Best I could do was 14.2s, I couldn't get it to hook and had to come out real easy. It had better et's in it. The magazine guys were in the 13's? This was a loaded car and very heavy. It did have the optional performance gear ratio.

I bought an automatic the next year ('94) and it also Ran 14.20s. You just left it in gear and punched it. Loading the converter made it spin.

That was hauling for a Stock Car in '93-'94.

Very consistent cars, won lots of Trophies and Grudge Matches.

Re: 67z vs 93z
 

what kind of rear is in the LT1?

Re: 67z vs 93z
 

Don't embarrass yourself, let the legend live, and don't run the '93. Those cars aren't particularly fast, but the 'ol Z's aren't nearly as fast as everyone remembers them being.

To get a 1st gen to run like most think they remember them running back in the day, you gotta have headers / open exhaust, and at MINIMUM a 4.33 gear... You also have to be running better than pump gas so that you can actually advance the distributor so that she can rev. All of these things equal terrible street manners in the old ride, which means that the new Z will walk you with the A/C on while in "D", listenting to his/her favorite Dan Fogleberg song on the CD player.

I love looking at the old stuff, but modern horsepower is so significantly better than stock vintage horsepower that it should not even be compared. The only thing that probably actually does compare between the two is curb weight. The '67 is no lightweight, and I'd be willing to guess that they are within 100 lbs. of each other.

Re: 67z vs 93z
 

There is nothing quite like the clackety-clack of perfectly adjusted solid lifters in a well tuned '69 Z with stock exhaust, but there is also nothing like the refined, fast exhiliration of one one today's performance rides. Apples and oranges. I would not take that bet either.
Back in the day, I drove a '69 Z that was only a year old, with less that 20K miles on it, and it would bake those bias ply tires through the gears on demand. No matter what I did to try to duplicate that experience with a restoration I was unable to even get close. There is just something about these cars when they were new.
So I gave up trying. Now I experiment with NOM big blocks that are stock appearing excluding the headers, but with big horsepower for that same "baking" capability.

JB

Re: 67z vs 93z
 

If it is a bone stock 93 it should run mid 13's to low 14's.
93 is the odd ball year because it still had a "chip" in the computer, had speed density air management and 2 versions of the manual transmission. A friend has one and it came with the optional 6 speed that came with 2.73's. Commonly the manual cars came with 3.42's. Auto cars with Z rated tires and performance axle came with 3.23 and the others got 2.73.

I had a 95 Z28 that ran 13.6 with the 2.73's and just a flowmaster muffler and an SLP Cold air kit.

But of course your elevation and weather will have a large impact on the ET.

Re: 67z vs 93z
 

My friend ran his 93 Z with 140,000 miles, 2.73 geared 6 speed with headers, no cats and an SLP TOTL (two on the left) Exhaust that went 13.0 on street tires. Keep in mind this was cool spring air at Gateway International.

Re: 67z vs 93z
 

[ QUOTE ]
In the October 1996 Car and Driver Jerry M ran his restored Tahoe Turquoise '67 Z/28 against a new '97 Z convert and a '97 Z28 SS LT4. 15.30/97 for the '67; 14.7/95 for the convert, 13.6/105 for the LT4.

[/ QUOTE ]

Here's a copy of the Jerry M article (clickable thumbnails):

http://67z28.net/gallery/albums/67%2...Untitled-1.jpghttp://67z28.net/gallery/albums/67%2...Untitled-2.jpghttp://67z28.net/gallery/albums/67%2...Untitled-3.jpghttp://67z28.net/gallery/albums/67%2...Untitled-4.jpghttp://67z28.net/gallery/albums/67%2...Untitled-5.jpg

Re: 67z vs 93z
 

No offense, but if the LT1 car is a 6 speed, and has a good driver it will walk your 67 Z. My uncle has an almost stock 94 Z28, and it will eat my 67 alive. A friend of mine has the bolt-on LT1 record, an 11.70 @ 114. Granted, the car has been lightened up, it has a 12 bolt with 4.33 gears, roller rockers, cold air intake, and headers, but no other modifications have been made. A good driver in a bone stock LT1 should be able to run a 13.4-13.6 with good track conditions. My friends car making a pass. http://lsx.streetfire.net/video/cfa3...6101222244.htm

Re: 67z vs 93z
 

OK OK you guys win https://www.yenko.net/ubbthreads/imag...s/rolleyes.gif https://www.yenko.net/ubbthreads/imag...lins/beers.gif

Re: 67z vs 93z
 

[ QUOTE ]
A good driver in a bone stock LT1 should be able to run a 13.4-13.6 with good track conditions.

[/ QUOTE ]I'd have to see that to believe it, Andy...that's a decent number for the LS1 cars. https://www.yenko.net/ubbthreads/imag...ins/tongue.gif

The '67 Zs are the lightest of the bunch, and are gonna have the best shot at knocking off it's newer cousin...for reference, I *believe* Hot Rod did a test back in the day of a '68 Z...they wanted to see how quick they could get the car in stock condition, just by tuning it and playing with the car, on street tires...I've posted it before here, but I believe it was mid-13s @ around 106 or so...

Re: 67z vs 93z
 

If I remember correctly, (in the early 70s) AHRA had the 67 and 68 Z-28s in different (Stock) classes ............... due to weight.

Re: 67z vs 93z
 

Ok, *finally* found my post on the '68 Z test...

[ QUOTE ]
It was done by SS&DI, Nov '68, and was the start of their "Project Camaro" series. Here's the run down...

Test: '68 Z/28, ordered with 4.30 posi, spoilers, M22, power disc brakes, and floor mats. Total cost: $3,686.55

- Heater assembly & AIR pump removed, due to the car being in an accident just prior to starting the project. Everything else was rebuilt as it was from the factory.
- It was given a general tune-up (points/valves checked, etc), rev box (set at 7600), set of Stewart Warner guages, and a 340hp Corvette distributor. Stock Wide Track GT Goodyears and stock exhaust manifolds are still in place...car is basically as it arrived from Chevrolet.
- car weighed 3165 with 12 gallons of fuel aboard.
- Very first run was a [email protected], which proved to be the worst ET and MPH for the car that day.
- Valves run, new set of AC43s, car cooled down..it then runs a 13.99 @106.50, then a [email protected]
- Dropped air pressure in tires to 22psi, installed Champion J6J plugs, and timing reset to 40 degrees. Made 3 more passes, best of which was a [email protected].
- Rejetted to 72/70-76 and new J63 plugs, and the car goes [email protected].
- Installed Champion HO3 plugs, replaced air cleaner, let the car cool off, then went a best of [email protected].

So, in a matter of a few hours, they managed to knock off 6 tenth just by fiddling with the car. And that's mid 13s with a pretty strong MPH, on the skinnies, and through the stock exhaust manifolds. Unfortunately, most people spend the few hours they *should be* tuning instead installing a set of headers or a bigger carb or...

[/ QUOTE ]

So, a respectable 13.6 @ 106+ from a few hours of tuning, granted, the car was heater delete, which *I believe* was doable on a '68, but adding a heater ain't gonna slow the car down a whole lot...and remember, this was on the stock Wide Track GT Goodyears and through stock exhaust manifolds! https://www.yenko.net/ubbthreads/imag...emlins/eek.gif