Spinning problem plz help.

bovi · 04-18-2008, 09:21 PM

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 · 04-18-2008, 10:22 PM

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

rx7/350z · 04-19-2008, 12:58 AM

Quote:

Originally Posted by davidv

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

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

Motormouth · 04-19-2008, 01:34 AM

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

CSF · 04-19-2008, 05:11 AM

Quote:

Originally Posted by Motormouth

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

almost spelled it right all the time

Quote:

Originally Posted by bovi

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

a better LSD wouldn't hurt

Peak350 · 04-19-2008, 10:55 AM

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 · 04-20-2008, 10:57 AM

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 · 04-20-2008, 11:02 AM

Quote:

Originally Posted by bovi

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.

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 · 04-20-2008, 11:18 AM

Quote:

Originally Posted by CSF

almost spelled it right all the time

a better LSD wouldn't hurt

oh lord, FAIL.

I only read the title. lol. good catch.

bovi · 04-20-2008, 02:29 PM

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 · 04-20-2008, 03:55 PM

Quote:

Originally Posted by bovi

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

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 · 04-20-2008, 06:26 PM

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

Peak350 · 04-20-2008, 08:00 PM

Quote:

Originally Posted by bovi

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

How would your tires being too wide make you spin?

WalkerT · 04-21-2008, 06:42 AM

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 · 04-21-2008, 01:10 PM

Quote:

Originally Posted by WalkerT

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.

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 · 04-21-2008, 08:07 PM

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

Peak350 · 04-21-2008, 08:29 PM

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

Motero · 04-21-2008, 08:45 PM

Quote:

Originally Posted by bovi

\Anyway, got a supercharger on the way now so maybe it will help a bit.

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

bovi · 04-22-2008, 11:09 AM

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

davidv · 04-22-2008, 03:19 PM

Quote:

Originally Posted by davidv

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

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

04-18-2008, 09:21 PM	#1
bovi Registered User Join Date: Mar 2008 Location: Montreal Posts: 75 iTrader: (1)	Spinning problem plz help. 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? Last edited by bovi; 04-18-2008 at 09:47 PM.

04-18-2008, 10:22 PM	#2
davidv Registered User Join Date: Jun 2004 Location: Baltimore, MD Posts: 26,739 iTrader: (0)	104.5mph is exceptional. Scan and post time slip. Thanks. __________________ 350Z 2004 Enthusiast: K&N Typhoon Air Intake - Motordyne Plenum Spacer - Alphawerks Stainless Steel Headers - Helix SS Test Pipes - Injen Super SES Cat-Back Exhaust System - 6 Pad Puck Ceramic Clutch and Forged Steel Flywheel by Competition Clutch - WedsSport SA-70

04-19-2008, 01:34 AM	#4
Motormouth so many uses Join Date: Aug 2005 Location: Center City Philadelphia Posts: 12,312 iTrader: (38)	at least you spelled spinning right, unlike the last thirty guys who posted this thread. __________________ It is my firm belief that it is a mistake to hold firm beliefs

04-19-2008, 10:55 AM	#6
Peak350 Registered User Join Date: Jan 2007 Location: DeLand, Florida Posts: 1,098 iTrader: (2)	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. __________________ stock 2007 SMB 6-speed Enthusiast - 13.239 @ 105.67 and going for more

04-21-2008, 06:42 AM	#14
WalkerT Nismofo Join Date: Jun 2005 Location: Flower Mound, TX Posts: 1,739 iTrader: (11)	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. __________________ 07 Redline base light weight = 3150 _ rwhp = 284 on the dyno http://www.youtube.com/watch?v=cotNSV7XyQg 13.4 @ 105

04-20-2008, 10:57 AM	#7
bovi Registered User Join Date: Mar 2008 Location: Montreal Posts: 75 iTrader: (1)	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.

04-20-2008, 02:29 PM	#10
bovi Registered User Join Date: Mar 2008 Location: Montreal Posts: 75 iTrader: (1)	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

04-20-2008, 06:26 PM	#12
bovi Registered User Join Date: Mar 2008 Location: Montreal Posts: 75 iTrader: (1)	Maybe my tires are too wide for the stock power, i got 285 wide 18 inches.

04-21-2008, 08:07 PM	#16
bovi Registered User Join Date: Mar 2008 Location: Montreal Posts: 75 iTrader: (1)	Sucks, gotta buy a new one . Got a supercharger on the way.

04-21-2008, 08:29 PM	#17
Peak350 Registered User Join Date: Jan 2007 Location: DeLand, Florida Posts: 1,098 iTrader: (2)	Hmm, might be time to look for a base diff and transplant a real LSD. __________________ stock 2007 SMB 6-speed Enthusiast - 13.239 @ 105.67 and going for more

04-22-2008, 11:09 AM	#19
bovi Registered User Join Date: Mar 2008 Location: Montreal Posts: 75 iTrader: (1)	lolll....Yah right!! And yes, i'll get a new lsd.