ET: Weight vs Spin?
#1
ET: Weight vs Spin?
Like many of you, my car has some traction issues. I know that I need to do some suspension work to get better grip, but I just don't have the time right now. I understand how to launch the car, not dumping the clutch, etc., but sometimes I just jump on it!
So my question is, which is faster, a car with weight in the trunk to maintain traction, or a car that spins a little going into second and third?
Conventional wisdom tells us that 100 lbs. equals .10 seconds, but what about the spin?
So my question is, which is faster, a car with weight in the trunk to maintain traction, or a car that spins a little going into second and third?
Conventional wisdom tells us that 100 lbs. equals .10 seconds, but what about the spin?
#3
Haven't been to the track so I don't know what my 60' time is. I'm just a "spirited" driver. Running a VMP tune and a 3" pulley at 4200 feet, so power should be somewhere around 450-500 rwhp.
#5
Heres my advice. Leave the starting line like your pulling away from a red light. Feed the thottle in slowly. Dont worry about the little bit of spin between first to second. Spinning aint winning but adding weight is not the answer.
Last edited by bluebeastsrt; 03-29-2014 at 04:47 PM.
#6
#7
I've been back and forth on this for years. I think if you're spinning to the point that you're pulling 2.2 or worse 60s with the trunk weight out, then just put it back in. If the 60 improves by more than a tenth, then just leave it in. One tenth gain in the 60' is worth more than 100lbs of weight reduction imo. But, if the 60' still stays the same with the trunk weight out, then just leave it out. Recently I removed a 30lb fuel cage and 80lbs of spare/jack/tools from the trunk of my GTO and went to the track. The car spins anyway, but I had to use the traction control just to get a 2.1 out of it. Every car is totally different though, and I haven't gone back to run with the rear weight back in to see the difference. Also, imo you should focus more on front end weight rather than rear weight, and for every pound you shed off the rear, you should try to match it with front end reduction to keep the car somewhat balanced.
#8
So, say moving the battery to the trunk would be very beneficial.
The reason I'm asking, for years, people throw sand bags in the trunk for traction. So it's really more of a general theory question.
The reason I'm asking, for years, people throw sand bags in the trunk for traction. So it's really more of a general theory question.
#10