bovi

iTrader: (3)

I went to the drag strip today and i cant go under 14.4 @ 104.5mph with my 04 6spd 350z.

I was spinning only 1 tires everytime. first,second en third speed with a tire spining.

I got 285/40/18 and it still not have traction.
Another guy with a oem 350z 03 oem wheels did 14.2 .

Can someone explain this to me and is the best thing to do is to buy a real lsd?

davidv

iTrader: (2)

104.5mph is exceptional. Scan and post time slip. Thanks.

rx7/350z

iTrader: (6)

Mph is always a little higher when your spinning off the line!

Motormouth

iTrader: (44)

at least you spelled spinning right, unlike the last thirty guys who posted this thread.

CSF

iTrader: (1)

almost spelled it right all the time

a better LSD wouldn't hurt

Peak350

iTrader: (6)

Don't shift so hard...its simple, if you get spin you just don't drop the clutch so hard off the shift until you don't get spin. You are accelerating much more slowly if you're spinning - so avoid it.

bovi

iTrader: (3)

Im not stupid, I did every kind of start and its all the same. I start in second speed and i did 14.4 also. Anyway, probably the cold track and the cement dont help and the crappy vlsd too lolll... Anyway, got a supercharger on the way now so maybe it will help a bit.

Peak350

iTrader: (6)

Thats obviously not true - you might not be stupid, but you CAN get better results. If the track can't hold 100% of the power the car can make you need to not give 100% throttle. You will see faster times from it. I've had to avoid going full throttle coming off of shifts and out of the hole before because the track was slick. I can still run good times....

Motormouth

iTrader: (44)

oh lord, FAIL.

I only read the title. lol. good catch.

bovi

iTrader: (3)

Peak350, all my runs are between 14.4 and 14.6, depending of the start ,rpm everything. Its about 5 degrees outta here and the first 100 ft of the track is in Cement so it might be a problem with my BF goodrich G-force, not enough hot maybe. Well, i got a 6 spd Z and i wasnt having any traction at all. 1-2-3 gear

Peak350

iTrader: (6)

I've run my old car in 35 degrees (F) on a track with over the first 300 feet in concrete and know what you mean, but less throttle and burning more clutch will eventually net you grip.

I'm also curious how if you have a VLSD its letting you spin one tire, I've never had that issue.

bovi

iTrader: (3)

Maybe my tires are too wide for the stock power, i got 285 wide 18 inches.

Peak350

iTrader: (6)

How would your tires being too wide make you spin?

WalkerT

iTrader: (13)

I had 285 rears on my 05 and the vlsd would not last but one run. To much traction on one wheel will over load the fluid. All so it depends on the age of your Viscous. The fluid can only be broken down so many times before it gets real weak. I think sport compact car did a write up on the VLSD and had problems with theirs after just a short time. They said that it got scary because it would just decide to work when it wanted to even in the middle of a turn. It should be on their website under project cars.

07JimmyZ

iTrader: (18)

I remember reading that issue as well. I believe they also said that at around 60k or depending on the wear, it will eventually act as an open diff.

bovi

iTrader: (3)

Sucks, gotta buy a new one . Got a supercharger on the way.

Peak350

iTrader: (6)

Hmm, might be time to look for a base diff and transplant a real LSD.

Motero

iTrader: (1)

Congrats, now you'll get in the high 13's.

bovi

iTrader: (3)

lolll....Yah right!! And yes, i'll get a new lsd.

davidv

iTrader: (2)

Doesn't look like I am going to see this time slip.