67z vs 93z

[Kim_Howie]

OK OK you guys win

[Chevy454]

[ 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.

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...

[ORIGLS6]

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

[Chevy454]

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!