I have a sony handycam with nightshot that is capabale of being transferred to my computer if anyone wants to get some good night footage… :banana
I know in theory slicks should make your trap go lower, but I know a guy in Pa with a 1995 M3, less boltons than me and the S50 (3.0) who trapped, in the same day mind you, 101, put his slicks on and ran a 13.4@105.
I don’t see how it wouldn’t make sense to gain mph from a better launch amirite?
wrinkle wall slicks when aired down produce more rolling resistance thus taking more force to turn them over… which USUALLY lowers trap speeds. its a trade off… better launch for better ET or spinning off the line for a better trap and higher ET…
I also have a canon dv camcorder joey… Just let me know and you can borrow it
I understand the theory behind it I’m just saying I’ve seen several cases of it.
I mean Joey and I ran last night off spray, I couldn’t possibly be trapping more than 103, and he trapped 106 on slicks off spray, it didn’t look like that much of a difference when we ran, he pulled me but not THAT hard.
Just accept facts: In most cases, spinning off the line (to an extent) will often lead to a higher trap… this is regardless of wrinkle wall tires or not. The track becomes longer in sense… and in some cars leading to more track time in the area in the curve (rpm wise) where the power is.
ive never understood this concept more traction = lower trap
I know… if I didnt experience it, i would argue it to the bitter end on logic alone.
Heres one possible explanation: Keep in mind this is a brain that has been down the track maybe 10 times.
A while back there was a video of slow motion drag cars starting at the line. The hole way the tire would slip little by little. I know the clutch slips off the line also. This lets the engine rev and make power without the bogg.
If the tires did not slip any then the engine would lose power because of the loss of motion in the tires.
With the tires spinning the engine operates at the most power. Tires not spinning the engine has more load on it and will lower power until the rpms catch back up.
Now, to complicate it further, I think some dragster owners shoot for that minimal slip http://www.youtube.com/watch?v=D0yPi8_dPy4
I would think the spin also makes more torque like a lower gear would.
No spin gets you out of the hole very quick but may bogg the motor some.
for the most part, they all are :cool
^ That makes sense. But let’s argue a litte logic with logic.
I’ll use math. A normal DR tire is about 26" in diameter. That means that for every spin on the tire that the car is not moving you can add on 26" to your 1/4 mile. A 1/4 mile is 1320’ long. A tire 26" in diameter will turn 628 times in that 1320’. (26"=2.1 feet)
A mile is 5,280’. This means a tire with no spin of 26" in diameter will turn 2,514 times in 1 mile. So if the tire spins for even 2 solid seconds at 20 MPH(105,600’ = 20 miles) on a launch, you have added almost 800 feet! That’s more than an half the distance down the track. So if your car can run 10 seconds without spinning the tire once and it were to spin its tires for even 2 seconds at 20 mph that means you lost 4-5 SECONDS on a run.
Now if you use a realistic scale in which a car were to spin its tires for 1 sec tops (slicks) and at 10 MPH your loss is closer to .5 to .6 in the 1/4 and 2-5 MPH. No spin is the best way to go using this example. An engine makes the same amount of power no matter what you do. It’s just where the power goes that changes. If the tires arent spinning more power is being transferred to the next easiest thing to move, in some cases the clutch. If not the clutch then it moves into other areas of the car. So that fact alone sort of negates the whole, some spin is good idea.
Yup… see that 100% . Unfortunately Physics and logic are on one page…and timeslips sometimes find themselves on the other page.
One area I’d like to know more about is how the tracks read mph… is it by feet covered in a certain time… which I think it is…then perhaps the mph on the slips isn’t accurate??? Does that make any possible sense? Have to think that one for a few…thinking aloud here now… If the final trap was radar, I have to wonder if the equations tracks use/computers generate is for mph completely accurate…
I know until the late 80’s NHRA used a system/algorithm that had to be modified for this reason.
Conversely, Can’t help but wonder if spinning a little gets the motor to a sweeter spot…then when you hook, and if it hooks “harder” theres more power to the ground assuming it hooked at the “right time” and theres more “g” of acceleration and it nets out a better higher MPH, but lower ET cause you didn’t move much in the first spinning moments.
These are all reasonable conclusions.
I think it’s time for mythbusters…
FUCK YEAH
There are die-hards on each end of the argument, and the truth is in the middle. Perhaps we could use some of JClarks inspirational endless wisdom of the world. :ohnoes
Soooo this weekend… Drew, are you bringing the Camaro out?
and Dave, are you going to be out?
Friday is looking good so i’m expecting to see some good ones this weekend. :banana :giggedy
woohoo!
Yippeeeeeee!!!
i dont go to the lot anymore because its full of a bunch of retards…I think im heading up to lake george again.
well see, i might bring the jetta on friday, sounds like there has been alot of cop action
oh come on…a lot of cop action not affecting the people who aren’t doing anything…we had multiple races down I-90 last Saturday after everyone got kicked out.