12.95 in stock '02 Z28 automatic

Kenny H

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I picked up the car two weeks ago from an older gentleman in Media PA, just south of Philly. Its a red 100% unmolested '02 Z28 automatic w/ 3.23s. Its on chrome 16 x 8 snowflakes, GSC 245-50-16s that are brand new. The car now has ~ 37,700 miles. When I say stock, I mean 100% stock. It still has the factory airbox, factory exhaust, nothing has been touched.

I decided to head out to Rockingham Dragway with a couple friends yesterday. The weather was good, I'm guessing no warmer than about 50 with a bit of a head wind. Depending on which website you look on, Rockingham's elevation is around ~ 340 feet above sea level. But with the cool January air and low humidity I'm sure the DA was close to zero and maybe even below it. In short, aside from a bit of a head wind, this was the best type of weather I'll see in North Carolina.

First pass off the street was terrible. I went in the left lane and spun badly and went high 16s. Ugh.
I was with my friend Joey who knows the track announcer and he mentioned for me to try the right lane as it was being prepper better. Good idea.

Car went a 13.06 @ 105.8 MPH w/ 2.006 short time. I was pretty shocked. I was hoping my beat my old '98 Formula's best stock time of 13.4 @ 104 and the GTO's best stock time of 13.4 @ 103 MPH. I didn't expect 13.0 at almost 106 MPH. I made a few more runs and backed up that 13.0 with several more 13.0s and 13.1s. The rear tires were at 30 psi, the front were at 38 psi. The car is 100% full weight, jack and spare still in the car. I had been going from brake to gas progressively harded/faster each time, hoping the track would hold. Finally this happened:

60' 1.921
333' 5.442
1/8th 8.327
MPH 85.28
1000' 10.832
1/4 12.957
MPH 105.88

Of course I was really thrilled with this. I was able to go from brake to gas quickly and everything worked out. The GSCs somehow dead hooked and off I was with my 12 second slip in a stock automatic car. That was my best pass of the day. I was able to back that up with a 12.97 @ 105.8X MPH on a 1.94 60 ft time. Again, the car was full weight, jack & spare still in it. Its the heaviest Z28 you can buy as it has leather, TTops, and a CD changer so I'm guessing race weight is about 3540 or so. I started with a little less than a 1/4 tank and at the end of the day it was about an 1/8th. I'm not comfortable running the car with any less fuel than that. Anyways, that was my day at the track in the new slush box LS1....
 

RedRocketMike

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Really nice times man, looks like you have a lot of experience at the track. I would think the trap speed would be higher for a stock 02 Z28 getting into the 12's though.
 
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Kenny H

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Really nice times man, looks like you have a lot of experience at the track. I would think the trap speed would be higher for a stock 02 Z28 getting into the 12's though.

The A4 LS1s always lack MPH. With the stock convertor the car falls on its face a bit on the 1-2 shift because of the tremendous gap in tranny ratios. Their was also a bit of a head wind, even so I don't see the car trapping any more then 106.XX even without that headwind. It doesn't make tons of power, it just seems to be efficient getting what power it does make to the ground. An M6 LS1 would eat me up from a roll, as would a stock terminator.
 

musclefan21

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believable man. that is a great time. in front of me a 2000 auto WS6 ran 13.0@106 mph bone stock and i was man, these things are moving.
 

S8ER01Z

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Very nice!!! Damn I wish I could have pulled a 1.9 60ft on stock tires!!! 2.1 is still my best :(
 

ViciousJay

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i call BS.... fastest Fbody stock went 12.8 on stock tires too... that was back in 1999... and it was a manual..... sorry but we have a B.S'er here

also the camaros was at sea level if not under
 

S8ER01Z

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The fastest F-body Manual (Z28 driven by Evan Smith) went 12.8 @ 108mph on a 2.1 60ft ;) ... and it's not the only one to have pulled that off (Evan also piloted an SS to 12.9 @ 107mph) and a few guys on the internet have tagged 12.x stock. A number of auto guys have been seen at 13.0 and 13.1 in the past so this is FAR from what I would call a BS time considering a low elevation track and great weather.
 

1slohawk

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congrats nice times. the best I have got out of mine is 13.3@108 with a 2.0 60 stock with a 6spd. I know it has a 12 in it but I don't want to take a chance and break the rear.
 

ViciousJay

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The fastest F-body Manual (Z28 driven by Evan Smith) went 12.8 @ 108mph on a 2.1 60ft ;) ... and it's not the only one to have pulled that off (Evan also piloted an SS to 12.9 @ 107mph) and a few guys on the internet have tagged 12.x stock. A number of auto guys have been seen at 13.0 and 13.1 in the past so this is FAR from what I would call a BS time considering a low elevation track and great weather.

sorry but im still gonna say a totally stock auto LS1 WILL NOT GO 12's! period, ive owned 2 of them and never has it been done... Ls1tech is the place and im sure theres no one thats done it
 

02 SLP SS

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sorry but im still gonna say a totally stock auto LS1 WILL NOT GO 12's! period, ive owned 2 of them and never has it been done... Ls1tech is the place and im sure theres no one thats done it

If you only knew how stupid you sound to the informed people on this board or any for that matter you would know to STFU :nonono: dummy!
 

ViciousJay

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If you only knew how stupid you sound to the informed people on this board or any for that matter you would know to STFU :nonono: dummy!

on your knees n00b time to suck off your words.... sorry but your wrong a ls1 auto aint doing those times stock, 6 speed i say could but not an auto... learn alittle about your car before you start raging war!


better yet post a slip and video of this run....
 

S8ER01Z

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I can't say I've seen one do it in the past..but I've seen enough go 13.0x to make it extremely possible.
 

Double"O"

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I can't say I've seen one do it in the past..but I've seen enough go 13.0x to make it extremely possible.


I saw an bone stock A4 LS1 Z28 go 12.96 then back it up with a 12.98 both at 105.xx


The DA was LOOOOW
 

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