Oversteer in right hand turns

kenchan · 04-02-2014, 09:29 AM

Quote:

Originally Posted by JWillis72

There are all kinds off driver problems to deal with but there is something else to this also. I'm not afraid to admit I'm learning but the back end shouldn't be this twitchy. I watched a Porsche GT3 cup car destroyed sliding down a wall this weekend and I don't want to be that guy!

yah, definitely try new tires first and see where it takes you. GL!

cavemancan · 04-02-2014, 04:56 PM

I'm running on 285/19 rear and 265/19 fronts with intake and exhaust. I also have the VLSD and let me tell you its easy to get the tale out so I can only imagine 245's and no LSD. I think you received some good advise regarding tires and LSD and that should be your focus in that order.

I've done a bit of reading on the LSD front and I've heard really good things about Quaife.

Limited Slip Diff: Z1Motorsports Quaife LSD

JWillis72 · 04-01-2014, 03:08 PM

It's new but this was the first time on the track boosted. I'm sure I'm part of the problem, the extra HP was a handful!

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JWillis72 · 04-01-2014, 03:09 PM

Under acceleration and it happened fast! I came within a foot of painting a wall yellow!

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Chuck33079 · 04-01-2014, 03:11 PM

Quote:

Originally Posted by JWillis72

Under acceleration and it happened fast! I came within a foot of painting a wall yellow!

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Unless something comes back wacky on your alignment, I'll go with "tires breaking loose around 5k rpm for $200, Alex".

I've got the same issue. Even at part throttle, when you start getting into the meaty part of the powerband, the tires will break loose. How much throttle did you give it? Mine is a lot more "point and shoot" after boost than it was before.

Chuck33079 · 04-01-2014, 03:19 PM

Quote:

Originally Posted by JWillis72

Chuck my car does hit boost hard at 4500 and that's about where I was.

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Quote:

Originally Posted by Chuck33079

"I'll go with "tires breaking loose around 5k rpm for $200, Alex".

Yeah, I'm leaning toward a learning experience that you have a whole hell of a lot more power than you think. Get a good diff and give it another shot. Hell, get a stock VLSD off someone. Even that's better than nothing.

JWillis72 · 04-01-2014, 03:11 PM

Any recommendation on a LSD?

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Zauskycop · 04-01-2014, 03:11 PM

New extra power, no LSD, stock suspension says to me heavy right foot...especially if it seems to be happening out of the "hard" corners. IF I were your instructor, I would say to you...

"pretend that there is an egg under your throttle pedal, and you want to just squeeze that pedal...try not to break that egg. Save your throttle mashing for when you are in a straight line"

Tracy Ramsey

JWillis72 · 04-01-2014, 03:14 PM

I was squeezing into the gas but I was unwinding the wheel. I was no where near hard throttle but obviously it was to much. It felt to me like it broke loose when the tires weren't making much noise.

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Chuck33079 · 04-01-2014, 03:15 PM

How many laps/miles on the tires? How hot were they?

JWillis72 · 04-01-2014, 03:17 PM

Chuck my car does hit boost hard at 4500 and that's about where I was.

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JWillis72 · 04-01-2014, 03:19 PM

3rd lap of the weekend and they had only done one weekend. The track had been wet that morning but it looked 100% dry. The track was cool and it was on the concrete section.

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JWillis72 · 04-01-2014, 03:22 PM

Any brand you recommend ?

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Chuck33079 · 04-01-2014, 03:24 PM

Quote:

Originally Posted by JWillis72

Any brand you recommend ?

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I'm still using the VLSD. Go look in the track subforum. There's some really smart guys in there.

JWillis72 · 04-01-2014, 03:23 PM

I'm not gun shy about spending money, I just want it right.

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04-02-2014, 04:56 PM	#2 (permalink)
cavemancan Enthusiast Member Join Date: Mar 2012 Location: Miami Posts: 302 Drives: 09 370Z TourSport MT Rep Power: 250	I'm running on 285/19 rear and 265/19 fronts with intake and exhaust. I also have the VLSD and let me tell you its easy to get the tale out so I can only imagine 245's and no LSD. I think you received some good advise regarding tires and LSD and that should be your focus in that order. I've done a bit of reading on the LSD front and I've heard really good things about Quaife. Limited Slip Diff: Z1Motorsports Quaife LSD __________________ Mazda Rx8 MT Titanium - SOLD! 2009 370Z T-Sport MT Black - Takeda Intake, Swift springs, Rear Camber kit, SS B Lines, FI Exhaust, Z Speed CMAK Flywheel/Clutch Kit, Stillen Brake Cooling.

04-01-2014, 03:11 PM	#8 (permalink)
Zauskycop Base Member Join Date: May 2011 Location: Hinckley IL Posts: 228 Drives: 2012 370Z, '16 Miata Rep Power: 15	New extra power, no LSD, stock suspension says to me heavy right foot...especially if it seems to be happening out of the "hard" corners. IF I were your instructor, I would say to you... "pretend that there is an egg under your throttle pedal, and you want to just squeeze that pedal...try not to break that egg. Save your throttle mashing for when you are in a straight line" Tracy Ramsey Eagle likes this.

04-01-2014, 03:14 PM	#9 (permalink)
JWillis72 A True Z Fanatic Join Date: Sep 2013 Location: Fort Myers FL Posts: 2,002 Drives: 2009 370Z yellow 7AT Rep Power: 46	Oversteer in right hand turns I was squeezing into the gas but I was unwinding the wheel. I was no where near hard throttle but obviously it was to much. It felt to me like it broke loose when the tires weren't making much noise. Sent from my iPhone using Tapatalk

04-01-2014, 03:15 PM	#10 (permalink)
Chuck33079 A True Z Fanatic Join Date: Nov 2011 Location: Houston Posts: 12,265 Drives: 2011 370ztt Rep Power: 29539	How many laps/miles on the tires? How hot were they? __________________ 2011 MB Touring-Sport-6sp-Nav/GTM TT/FI TT TDX/JTran/Kosmic/Eibach/Hotchkis/SPC/CSF/RPS/SoThatsWhereAllMyMoneyWent

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04-01-2014, 03:08 PM	#3 (permalink)
JWillis72 A True Z Fanatic Join Date: Sep 2013 Location: Fort Myers FL Posts: 2,002 Drives: 2009 370Z yellow 7AT Rep Power: 46	It's new but this was the first time on the track boosted. I'm sure I'm part of the problem, the extra HP was a handful! Sent from my iPhone using Tapatalk

04-01-2014, 03:09 PM	#4 (permalink)
JWillis72 A True Z Fanatic Join Date: Sep 2013 Location: Fort Myers FL Posts: 2,002 Drives: 2009 370Z yellow 7AT Rep Power: 46	Under acceleration and it happened fast! I came within a foot of painting a wall yellow! Sent from my iPhone using Tapatalk

04-01-2014, 03:11 PM	#7 (permalink)
JWillis72 A True Z Fanatic Join Date: Sep 2013 Location: Fort Myers FL Posts: 2,002 Drives: 2009 370Z yellow 7AT Rep Power: 46	Any recommendation on a LSD? Sent from my iPhone using Tapatalk

04-01-2014, 03:17 PM	#11 (permalink)
JWillis72 A True Z Fanatic Join Date: Sep 2013 Location: Fort Myers FL Posts: 2,002 Drives: 2009 370Z yellow 7AT Rep Power: 46	Chuck my car does hit boost hard at 4500 and that's about where I was. Sent from my iPhone using Tapatalk

04-01-2014, 03:19 PM	#12 (permalink)
JWillis72 A True Z Fanatic Join Date: Sep 2013 Location: Fort Myers FL Posts: 2,002 Drives: 2009 370Z yellow 7AT Rep Power: 46	3rd lap of the weekend and they had only done one weekend. The track had been wet that morning but it looked 100% dry. The track was cool and it was on the concrete section. Sent from my iPhone using Tapatalk

04-01-2014, 03:22 PM	#13 (permalink)
JWillis72 A True Z Fanatic Join Date: Sep 2013 Location: Fort Myers FL Posts: 2,002 Drives: 2009 370Z yellow 7AT Rep Power: 46	Any brand you recommend ? Sent from my iPhone using Tapatalk

04-01-2014, 03:23 PM	#15 (permalink)
JWillis72 A True Z Fanatic Join Date: Sep 2013 Location: Fort Myers FL Posts: 2,002 Drives: 2009 370Z yellow 7AT Rep Power: 46	I'm not gun shy about spending money, I just want it right. Sent from my iPhone using Tapatalk