Rear wheel hop

AlexRaymond19 · 08-25-2014, 05:22 PM

Hey all.

I recently installed a quaife diff, and whileline diff bushings.

This morning when I was leaving for work, I decided to lay a strip when I was pulling out of the driveway. I got some pretty intense wheel hop. It was about 60 degrees out and obviously the tires were not warm yet. Did that have something to do with it? Only other mods I have in that department are swift springs and 11 inch re11's in the rear.

Hopefully I didn't install something wrong...

Thoughts?

And I wasn't laying a strip to be a jerk, just wanted to test the new diff ;-)

kenchan · 08-25-2014, 05:44 PM

odd... people swap that rear diff bushing to prevent wheel hop, no?

and punching a cold engine and tranny and diff?

AlexRaymond19 · 08-25-2014, 06:00 PM

Engine was idle for a bit. Tranny is bullet proof. Knock on wood....

That's what I thought, but it was pretty bad...I'll do another test with warm tires...

I'm wondering if I tightened the bushings enough, I did it until I could see the bushings squish, breaker bar tight, but not maxed out with the metal spacer/guide

critical · 08-25-2014, 06:26 PM

you should torque the bolts to specs. the two long bolts are 74 ft lbs and the one nut in the back is 81 ft lbs. i have quaife diff and energy suspension diff bushings. launches like a mo fo! no wheel hop.

AlexRaymond19 · 08-25-2014, 07:20 PM

I'll get back under there and torque them better. I'm assuming it's somewhat close, I had the handle off my jack using that as a breaker bar

xxAGAVExx · 08-25-2014, 08:05 PM

If the above doesn't work upgrade your rear suspension bushings (camber and traction arms) or even better upgrade them completely. When u launch, your suspension geometry changes, upgrading some of this will help

Sent from my iPhone using Tapatalk

critical · 08-26-2014, 01:15 AM

Quote:

Originally Posted by AlexRaymond19

I'll get back under there and torque them better. I'm assuming it's somewhat close, I had the handle off my jack using that as a breaker bar

if you're working on a car, you need a proper torque wrench. this is the one i use:

http://www.amazon.com/CDI-1002MFRMH-...+torque+wrench

it's a snap on brand.

AlexRaymond19 · 08-26-2014, 06:19 AM

I have a torque wrench :-) I just wasn't sure what the torque specs were. Couldn't find it for the life of me.

I also have spc camber kit I forgot to mention

critical · 08-26-2014, 06:29 AM

Quote:

Originally Posted by AlexRaymond19

I have a torque wrench :-) I just wasn't sure what the torque specs were. Couldn't find it for the life of me.

I also have spc camber kit I forgot to mention

JARblue · 08-26-2014, 07:23 AM

Cold tires were definitely not helping...

And I hope the engine wasn't cold if you were revving high RPMs...

There is some good info on wheel hop (have to sort through some garbage though) in a variety of threads on the forum, so you might want to do some reading as well. All I can say is I get wheel hop when I give the car too much throttle too early on launch. I control it by managing my throttle input better. I would hope with your recent mods that warm tires will virtually eliminate this, but if not, try backing off the throttle a hair when the wheel hop occurs.

Masterbeatty · 08-26-2014, 07:28 AM

Interesting as i just put in my SPL bushings in this past weekend and i also have a quaife diff too. On my test drive i laid down two 100' strips with no wheel hop at all.

1slow370 · 08-26-2014, 11:17 AM

the little metal spacers are the stops that set the bolt height, properly torqued everything should be nice and tight, make sure you are using the correct combination of washers at the front points for the white lines and that they are installed in the correct direction. Improperly tightened bushing will for sure give you worse wheel hop than factory bushings. but check over the other bushings back there make sure nothing else looks exploded or torn/worn out.

kenchan · 08-26-2014, 11:20 AM

Quote:

Originally Posted by Masterbeatty

Interesting as i just put in my SPL bushings in this past weekend and i also have a quaife diff too. On my test drive i laid down two 100' strips with no wheel hop at all.

wat tires are you running? im sure tires are a big factor too...

kenchan · 08-26-2014, 11:25 AM

not that i suffer wheel hop, with all this talk about that one rear diff mount bushing issues, i actually went under my Z and G last night to check on the rear bushing. wheew...no leaks. lol

AlexRaymond19 · 08-26-2014, 12:58 PM

Quote:

Originally Posted by kenchan

not that i suffer wheel hop, with all this talk about that one rear diff mount bushing issues, i actually went under my Z and G last night to check on the rear bushing. wheew...no leaks. lol

Let me tell you, that ish is nasty... when I was drilling a hole through it it exploded and it looked like I killed an alien

08-25-2014, 05:22 PM	#1 (permalink)
AlexRaymond19 Track Member Join Date: Jun 2011 Location: Maine Posts: 771 Drives: 2010 Nissan 370z Rep Power: 14	Rear wheel hop Hey all. I recently installed a quaife diff, and whileline diff bushings. This morning when I was leaving for work, I decided to lay a strip when I was pulling out of the driveway. I got some pretty intense wheel hop. It was about 60 degrees out and obviously the tires were not warm yet. Did that have something to do with it? Only other mods I have in that department are swift springs and 11 inch re11's in the rear. Hopefully I didn't install something wrong... Thoughts? And I wasn't laying a strip to be a jerk, just wanted to test the new diff ;-) __________________ 2010 370Z Touring MT \| Stillen \| Motordyne \| Momentum\| Z1 \| Fast Intentions \| Advant Garde \| RE11 \| Swift \| SPC \| Quaife \| Whiteline \| Evo R \| 322RWHP 259ft-lb Mustang

08-25-2014, 06:00 PM	#3 (permalink)
AlexRaymond19 Track Member Join Date: Jun 2011 Location: Maine Posts: 771 Drives: 2010 Nissan 370z Rep Power: 14	Engine was idle for a bit. Tranny is bullet proof. Knock on wood.... That's what I thought, but it was pretty bad...I'll do another test with warm tires... I'm wondering if I tightened the bushings enough, I did it until I could see the bushings squish, breaker bar tight, but not maxed out with the metal spacer/guide __________________ 2010 370Z Touring MT \| Stillen \| Motordyne \| Momentum\| Z1 \| Fast Intentions \| Advant Garde \| RE11 \| Swift \| SPC \| Quaife \| Whiteline \| Evo R \| 322RWHP 259ft-lb Mustang

08-25-2014, 06:26 PM	#4 (permalink)
critical A True Z Fanatic Join Date: Oct 2012 Location: Washington Posts: 1,252 Drives: 09' 370z 7AT Rep Power: 15	you should torque the bolts to specs. the two long bolts are 74 ft lbs and the one nut in the back is 81 ft lbs. i have quaife diff and energy suspension diff bushings. launches like a mo fo! no wheel hop. kenchan and AlexRaymond19 like this. __________________ Quaife w/ gears \|Stillen Gen 3\|SOLD FI Resonated Test Pipes \|SOLD FI 18'' \| 25row Stillen Race \| Progress 35mm/25mm sways \| Swifts/Koni\|Volk G25's\| Stoptech SS lines\|\|SPL Front/Rear Arms\|

08-25-2014, 07:20 PM	#5 (permalink)
AlexRaymond19 Track Member Join Date: Jun 2011 Location: Maine Posts: 771 Drives: 2010 Nissan 370z Rep Power: 14	I'll get back under there and torque them better. I'm assuming it's somewhat close, I had the handle off my jack using that as a breaker bar __________________ 2010 370Z Touring MT \| Stillen \| Motordyne \| Momentum\| Z1 \| Fast Intentions \| Advant Garde \| RE11 \| Swift \| SPC \| Quaife \| Whiteline \| Evo R \| 322RWHP 259ft-lb Mustang

08-25-2014, 08:05 PM	#6 (permalink)
xxAGAVExx A True Z Fanatic Join Date: Nov 2012 Location: Tampa Posts: 1,014 Drives: 09 370Z BLK M6 Rep Power: 20368	If the above doesn't work upgrade your rear suspension bushings (camber and traction arms) or even better upgrade them completely. When u launch, your suspension geometry changes, upgrading some of this will help Sent from my iPhone using Tapatalk __________________ l 09/6MT l BP Twin Turbo Kit l E-85 w/Fuel Return l FI 18" Res CF CBE l Powertrix Ultra-Lite Coilovers l Wavetrac LSD \| Lots of SPL and Carbon Fiber \|

08-25-2014, 05:44 PM	#2 (permalink)
kenchan A True Z Fanatic Join Date: Aug 2009 Location: N/A Posts: 76,801 Drives: N/A Rep Power: 141520	odd... people swap that rear diff bushing to prevent wheel hop, no? and punching a cold engine and tranny and diff?

08-26-2014, 06:19 AM	#8 (permalink)
AlexRaymond19 Track Member Join Date: Jun 2011 Location: Maine Posts: 771 Drives: 2010 Nissan 370z Rep Power: 14	I have a torque wrench :-) I just wasn't sure what the torque specs were. Couldn't find it for the life of me. I also have spc camber kit I forgot to mention __________________ 2010 370Z Touring MT \| Stillen \| Motordyne \| Momentum\| Z1 \| Fast Intentions \| Advant Garde \| RE11 \| Swift \| SPC \| Quaife \| Whiteline \| Evo R \| 322RWHP 259ft-lb Mustang

08-26-2014, 07:23 AM	#10 (permalink)
JARblue A True Z Fanatic Join Date: Mar 2011 Location: Austin, TX Age: 43 Posts: 36,449 Drives: 11 Z34, 98 E36 M3 Rep Power: 2684440	Cold tires were definitely not helping... And I hope the engine wasn't cold if you were revving high RPMs... There is some good info on wheel hop (have to sort through some garbage though) in a variety of threads on the forum, so you might want to do some reading as well. All I can say is I get wheel hop when I give the car too much throttle too early on launch. I control it by managing my throttle input better. I would hope with your recent mods that warm tires will virtually eliminate this, but if not, try backing off the throttle a hair when the wheel hop occurs. __________________ 2011 370Z 6MT Sport Gun Metallic \| ARC \| CJM \| Ecutek \| FI \| Fujimura \| R2C \| SPL \| Stillen \| TWM \| Z1 \| ZSpeed \|

08-26-2014, 07:28 AM	#11 (permalink)
Masterbeatty A True Z Fanatic Join Date: May 2012 Location: Whales Vagina Posts: 4,586 Drives: the speed limit... Rep Power: 122866	Interesting as i just put in my SPL bushings in this past weekend and i also have a quaife diff too. On my test drive i laid down two 100' strips with no wheel hop at all. critical likes this. __________________ 2011 MB 6MT Masterbeatty journal

08-26-2014, 11:17 AM	#12 (permalink)
1slow370 A True Z Fanatic Join Date: Aug 2009 Location: In the D Posts: 3,732 Drives: v8 74 260z ;) Rep Power: 7250	the little metal spacers are the stops that set the bolt height, properly torqued everything should be nice and tight, make sure you are using the correct combination of washers at the front points for the white lines and that they are installed in the correct direction. Improperly tightened bushing will for sure give you worse wheel hop than factory bushings. but check over the other bushings back there make sure nothing else looks exploded or torn/worn out. waterfowler65 and critical like this. __________________ ANSWER PRICE LIST Answers - - - - - - - - - - - - - - - - $0.75 Answers (requiring thought) - - - - $1.25 Answers (correct) - - - - - - - - - - $12.50

08-26-2014, 11:25 AM	#14 (permalink)
kenchan A True Z Fanatic Join Date: Aug 2009 Location: N/A Posts: 76,801 Drives: N/A Rep Power: 141520	not that i suffer wheel hop, with all this talk about that one rear diff mount bushing issues, i actually went under my Z and G last night to check on the rear bushing. wheew...no leaks. lol AlexRaymond19 likes this.

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