Z28sTunner

0-60 in 4.1 seconds...

I guess there's no need to spend $4,000 + in mods to reach those kind of numbers on my 02'Z. Here I thought my silly car was running 0-60 in 5.1 seconds

SilverZ24

First let me make 2 very important points. 1st, when Motor Trend or Car and Driver test new cars, they don't go to a drag strip to make the test. They test on normal road comditions. If they did run at the strip, traction would be better and 0-60 times would be better too. 2nd point, you have to remember something when your using the 0-60 calculators that use 1/8 mile data. When you make a run, you usually eek forward till your just touchin the second beam, we do this to get better et's. Well in effect, your accually getting a running start before the timer starts, so your not accually testing the run as soon as you start moving, only after you leave the beam. Most 0-60 runs are started as soon as the vehicle starts to move, not after it moves 7 inches to break a beam.

Another point, in the 12/95 issue of Car and Driver, they managed to run 0-60 in 4.9 seconds and run the 1/4 in 13.6 with a '96 SS. If they can trickle into the 4's on a 13.6 run, I have no probs believing a LT1 runnin a 13.1 can break into the 4's. Am I saying his 4.4 is dead on? No. I personally think it is a little off, do to the whole staging point mentioned, is 4's possible, at a drag strip, easily.

Just my well thought out $.02.

psychocabbage

Well the car is parked daily in front of my restaurant.
http://www.pizzaplacetx.com
If you are in the houston area, feel free to come out anytime and look at it.

I usually have my hood popped during the weekends when car guys show up and as everyone will attest to, the car is absolutely stock..
The only differences as I have stated are the Yokohama AVS ES100's (tires) and the gas and oil.

I am trying to get to a dyno day tomorrow morning. They have two different dynos (mustang and dynojet) and are doing 2 runs on each for $50.. that sounds like fun..

If I get to run, Ill post up..

Other than that, hopefully sometime soon ( after mothers day and whatnot ) I can get another track day in to throw out the 12's..

as for traction.. I have it.. I dont spin.. THe new mustang Mach1's that were at the track were spinning all over the place.. I didnt.. I hooked and went each time until finally overheating the clutch.

I have tested the clutch out on my way to and from work and have found that it should hold as I have done more 6K shifts from 1-2 and it held..

ls1turbo

FYI

you all are missing one really big point and that is the drag strip does NOT start the timer at 0 mph. Due to rollout you are actually traveling 3-5 mph when the timer starts which would be around .3-.5 secs for all the above cars, so all the 0-60 numbers based on 1/4 mile times must add .3-.5 secs to the "simulated/estimated/calculated" 0-60 times. Do this and a lot of the above numbers become more reasonable.

falchulk

I think ls1turbo has solved it.

psychocabbage

In the interest of the pursuit of knowledge.. where did you get YOUR data?

Because what we are seeing here is that you need to add .3-.5 to everyones times now.. so about 90% of all the 12 sec cars are now 13 sec cars.. the 13 sec cars like most LT1 and LS1 cars are now 14 sec cars.. hmm

falchulk

Wrong, he is talking about deep staging. The ET counter does not start until your front tire triggers it, already in motion. Considering this, and a littel bit of error in the calculator it brings you up to normal.

SilverZ24

There are 2 setups a strip can use. One involves 2 beams, the other involves 3. In the case of 2 beam, they are your prestage and stage, (lights up on the tree when you trip them obviously) The timer starts when your tire leaves the 2nd beam, that's why we launch on the yellow not green light. On the 3 beam, you have the normal 2 stagind beams, and them a 3rd beam like 6-7" after the 2nd stage beam, on this setup, the timer starts when you trip the 3rd beam.

In addition, there are 2 ways to shage, shallow and deep. Shallow is how most racers choose to stage, where they eek forward to just break the 2nd beam, this gives better ET's do to you getting a "running start" on the timer. Deep is when you eek forward until the 1st light goes out (you have left the 1st beam). Your ET's are little slower but some like it cause it's easier for them to get better RT's.

The way you stage if personal preference for whether you want a little better RT or ET. I posted all this 2 posts before LSITurbo posted his shortened version of my post. 0-60 calculators are only ballpark figures anyways, even with staging out of the equation, they still have to take an average of how long it too you to get to 85 (ballpark 1/8 average) and get an average.

ls1turbo

I'm not suggesting that you add .3-5. secs to your 1/4 times, just to your 0-xxmph times, IF you base them off of a 1/4 mile timeslip

From the example above:

60' 2.12 33.86mph
100ft 2.82 44.34mph
330ft 5.61 66.47mph
500ft 7.20 78.76
660ft 8.51 88.16
1000ft 10.96 99.05mph
1320ft 13.08 107.45mph

This works out to....
0-30mph 1.86s
0-40mph 2.53s
0-50mph 3.25s
0-60mph 4.78s
0-70mph 6.06s
0-80mph 7.37s
0-90mph 8.80s
0-100mph 11.26s

This is incorrect, its actually:
4-30mph 1.86s
4-40mph 2.53s
4-50mph 3.25s
4-60mph 4.78s
4-70mph 6.06s
4-80mph 7.37s
4-90mph 8.80s
4-100mph 11.26s

And what I'm saying is that it takes approx .3-.5 secs to get from 0-4mph.

so the corrected numbers are:
0-30mph 2.2s
0-40mph 2.9s
0-50mph 3.6s
0-60mph 5.2s
0-70mph 6.4s
0-80mph 7.8s
0-90mph 9.2s
0-0mph 11.6s

robb4964

Yes , you should be faster then that . With Nitto's you should at least be running a 4.7 0-60 time .

robb4964

Agreed ...A bone stock LS1 6 speed should be able to hit 12's with DR's......on street tires though , man , hard to get the kind of 60's you need to create the offline enertia ..But , it can be done .

jchrisos

Any idea why that may be??? All I have is in my sig.


Thanks,


Jim

trackbird

This article makes mention of a test GMHTP did where they ran a 12.xx on stock tires, paper air filter and all. It happens from time to time.

http://www.gmhightechperformance.com...rld/index.html

A quote from the article:

"Critics have claimed our amazing test results have more to do with the driver behind the wheel than the cars themselves. There is no denying that Evan Smith, our resident hot shoe, has an uncanny ability for running the quarter mile, as evidenced by his 12.89 run in a stock 1999 Z28 (GMHTP 7/99). Often overlooked is the fact that several of our other staff members have netted similar results. Most recently, Rick Jensen ran an automatic-equipped, Collector's Edition Trans Am to a 13.13 at 104 mph for the September 2002 issue of High Performance Pontiac. "

Just thought I'd mention that article, it seems to support some of the arguements on here.

Have fun!

falchulk

actually is does not. The real question is the 0 to 60 not the 1/4.

trackbird

Good point. I meant this statement (not so much a question):