0-60 mph on 17" plus wheels??

[nitrorocket]

What are you guys getting for 0-60 times on 17" or larger wheels/tires?? I am embarressed to even say my time. I need a time to shoot for a goal??




I need a twin disc clutch. That's all I have to say.

[PeteRR]

What are you guys getting for 0-60 times on 17" or larger wheels/tires?? I am embarressed to even say my time. I need a time to shoot for a goal??


I need a twin disc clutch. That's all I have to say.

What's your overall tire height? Rim size alone is not enough info.

[nitrorocket]

I was jsut curious what is the high and low range of what other cars have been able to do on similar wheels.

I run a 17" rim with 315/35/17 tires. I have gotten a 4.5 second 0-60 on my second of only two try's. I am confident with a few more trys I should dip in the 3 second range. Any body else in that range??

I got the 4.5 by dumping the clutch at 4k and just smoking the tires for about 10 feet and pulling 2nd gear and continuing to spin the tires to 60 mph. Not the best way, I am going to have to work on technique for sure!

[WS6]

You will probrably want to try some tires with more sidewall. Not sure if you can do that with your current rims or if you'll have to drop down a size or two. What tires are you using? I know Nitto Drag radials come in a low profile size. Maybe a very sticky tire like that will work well for you.

[nitrorocket]

I am using a Goodyear GSCS with ultra stiff sidewalls. I am only interested in 0-60 times with a performance type handling tire. I ran drag radials but they were bad in the corners, they would roll onto the sidewall pretty bad. I have to look and see what the new vettes are doing... Be right back.

[nitrorocket]

On Corvette forum, people are getting around 4.00 flat range, so 3's should not be hard at all with quality tires and a little practice!!!

Time to go out and practice sometime next week!

[Van B]

You'll be all set for the inaugural 0-60 challenge.

[MonzaRacer]

Well if you dump those garbage goodyears you might have better traction. After selling a lot of GY products for about a year I found that GY couldnt build a sticky tire if they wanted.
I switched to working for Bridgestone/Firestone and all but on of my old customers went with Potenzas and love them. The GY tires rode like rocks and heck even when we mounted them on high dollar rims the tires were never round they all hopped even the high end F1s were super square according to the owners.
I do believe Nitto makes a super sticky road tire that sticks in Quarter too.
Also a good look at the rear end geometry on A bodies helps a lot. also trying to take off on virgin asphalt is very hard with mucho power like you got.

[nitrorocket]

You'll be all set for the inaugural 0-60 challenge.

Is that KMH or MPH??


The goal is to have it do everything decent, sub 4 second 0-60, run 9's(The easiest goal, just need a 1.70 60' or better), stop fast(I have not set a goal here nor have I tested with any data yet), turn in the .90+ G range(Need to find a good place to try), and of course my infamous hitting 200 mph thing( Just need the right stretch of asphalt).
The hard part is just learning the car, trying to control braking pressure in super fast stops, launching methods to not just blow the tires off or bog the car, and also trying to do it consistantly.

[Goatman]

What does your rear suspension consist of? I've pulled a 1.37 60' time with my stock suspensioned GTO with slicks at the track.. No idea what 0-60 is/was, but I'd bet its was considerably quicker than 3 seconds.

Point being, the rear suspension and tires have to be pretty stout to get those cars to hook well. Especially with all the torque your ride puts out.

[nitrorocket]

1.37 SEC 60', I would bet that is about 2 seconds flat or so.

I know with slicks I could go 0-60 in under 3 seconds or so even with my incorrect suspension setup, but I want to know what the car will do the way I drive it 100% of the time, not just with slicks.

My rear suspension has 3 position rear lower control arm relocation brackets, upper and lower tubular adjustable control arms with heims, and 200 lb springs.

With the stock dprings it used to 60' in the 1.60 range, but that has been getting worse the more I set it up for the road track.

[Goatman]

My car had BMR uppers and lowers, unknown springs that were there when I bought the car, a stock 1970 GTO sway bar and HAL adjustable shocks. No reloaction brackets or anything like that. The air bag trick didn't work either.

Only thing I can tell you is to get the car scaled and try loosening up the front end a bit.

[WELTERRACER]

Im not sure about 0-60, but i had gotton my 60 foot times down to 1.80 at the track on 275/40/17 yokahama street tires with an automatic and 2500 stall with the stock suspension at only 425hp..

[jonnyc]

a 315/35/17 is roughly 26" tall.the 275/60/15 that use to be popular and the older cars is roughly 28" tall.

the down fall to 17" wheels is that they can be very heavy.the weight of the rim/tire combo will affect your 0-60 times quite a bit.

[streetk14]

I did a few G-tech runs in my '67 a few weeks ago before I took the engine apart to do the heads/cam/headers and blower. I just wanted to see what it would do with that combination in pure street mode.

I ended up doing about 4.5 flat on my best run. I had a few runs where I left 2 long, black marks through 1st and 2nd all the way to 60 which resulted in about 5 seconds flat (better than I thought). Then I had a few where I was too conservative on the launch and lost time by bogging down on the launch (4.7-4.8's). I then got my best run, which was a good balance of tire spin & traction. I'm sure it had more in it if I spent some time on launch technique and power-shifted during the runs. I was trying to be nice to my 10 bolt, so power-shifting was out of the picture. I think that alone could knock a few tenths off my time.


The car has 315/35/17 BFG G-force T/A KD's on 11" wheels in the back. When I made these runs, the motor was an '02 Z06 LS6 motor with a 6 speed and 4.11 gears making about 430 hp @ the flywheel.

Unfortunately, I think you are going to need a stickier tire on that Chevelle. You have a good deal more power than my car, which is a problem. You may be able to find an R-compound tire like Nitto's 555R II. It is drag radial compount with a stiff sidewall, but last time I checked, it was not made in our size.

To put it in perspective, I think you need to take the 0-60 times you see published lightly. The times quoted by the manufacturers on new performance cars are produced by professional drivers who thrash cars for a living. These are not these guy's cars, and they are beating the hell out of these cars to get these numbers. I just checked out a new C6 road test at Car and Driver, and they posted 0-60 in 4.3. I also read that the 4 second flat 0-60 quoted by GM for the '02 Z06 was most likely accomplished by clutch-less upshifts. How many people do you think are going to be able to duplicate that?

But with that off my chest, I too would like to know what other members are running in their P-T cars on STREET tires. I'll be sure to report back after my blower is on and running.

Andy

[nitrorocket]

I think a good goal seems to be around the 4.0 range for a powerful car with 315's. A drag radial would help, but they suck in the turns. My rear wheels/tires weigh over 50 lbs each!! That can't help, but I never thought of them as a problem at this power level. My best so far is just spinning the tires pretty hard all the way through 1st, and 2nd gear while hitting the reve limiter in 1st.
This leads me to believe I have alot left in my 0-60 time. I just need time to go and practice some more.

I wish Sumitomo made a 315 tire. I go through about so many tires without trying, and at least those would be cheap...

[chevella]

Sumitomo does make them in 315. They are $96.00 a tire at the Tirerack. I just bought a couple to thrash myself. I can tell you from experience they are going to make your 60 ft worse.

[David Pozzi]

Have you tried launching in second gear?

[nitrorocket]

That would be a negative.

I have a 3.08 rear gear with a 2.66 1st ratio. At 6000 rpm I am going 60, 2nd I am going about 90. It is jsut to much gear to pul wothout having to spin the tires.

I would LOVE to slap on some Hoosier or Mickey 315 drag radials, My 0-60 would be in the mid 3 second range!!

I wish they would handle corners better.

[rocketman]

When I had 16's on my 68 camaro it would .9 -1.10 60 ft.

My 94 Z on 18's 60's mid 3's it sucks.

O the 68 is a pro mod.