Brake Steer?... Twitch under Threshold Braking - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

jy116 · 11-25-2005, 01:41 PM

Goin z32 front calipers and I know its gona be a lot stronger braking power, so las nite I did some threshold braking to make sure cars ready...

I accel to maybe 20-30mph, then step on the brakes harder and harder then stand on em [I want to stop hard, not skid]. Then rite b4 the car stops, I heard a clunk from the driver front wheel, and the steering wheel twitches.

Feels like the driver front wheel is getting toe out. I have NISMO TC rod bushings, s14 5lug hub [so cant be older than 1995 bushings], and my tie rod is 1991 oem. Suspension is full coilover with pillow mounts.

SO... any ideas wut that clunk is? My best gues is that since I have 17x7 +35 in front, the wheel center is a lil further out, putting torque at the hub, and making one of the bushings compress? Anyone else have this prob? Solve-able with poly bushings?

Drunk Bastard · 11-25-2005, 02:52 PM

did you check the coilover like i mentioned in another thread?

thejester03 · 11-25-2005, 05:59 PM

Also, make sure you TC rod MOUNTS are tighly bolted down(well up). Mine were very loose when I got the car, that was UBER scary,My fire wall moved and my head lights angled way down it was so bad, 10 minutes with a 14mm socket and bamo, so more wheel movement, well other than my TC bushings are trashed, but any way, good thing to check, just get under there and make sure everything is tight.

jy116 · 11-26-2005, 01:55 AM

how the hell does the firewall move!?! Thnx for the feedback tho. Its all torqued to spec... its too loud to be the coilovers... those have been torqued to factory spec too...

sum other ppl said maybe one side is locking up first?... or steering rack bushing?

Ill get under it tmro :/ Its not too too major, car drives fine. Just a concern I had when imagining lots more braking power, and upcoming track day/s.

Drunk Bastard · 11-26-2005, 04:01 AM

i dont mean the two bolts on the actual coilover, i mean the rings on the threads

NismoSilvia270R · 11-26-2005, 06:28 AM

[QUOTE=jy116]how the hell does the firewall move!?! QUOTE]

http://www.zilvia.net/f/showthread.p...aster+cylinder

thejester03 · 11-26-2005, 04:59 PM

Sorry, I meant radiator support....

kazuo · 11-26-2005, 06:10 PM

Check your tie rod ends.

Most people who get the clunk, its because the bushings on the ends are blown.

jy116 · 11-27-2005, 12:36 AM

o yeh... mine are blown... but i never noticed any lack of steering so its not high on my to do list... haha... ill go find some and change it someday soon.

The coilover collars are tight, i didnt know wut u meant, but yeh... it was making noise b4, and I could move my whole wheel it was so lose, so I made sure all thats tite... "hella tite" ;]

Thanks for the good suggestion folks

11-25-2005, 01:41 PM	#1
jy116 Zilvia Addict Join Date: Aug 2003 Location: Berkeley, CALifornia Posts: 785 Trader Rating: (0) Feedback Score: 0 reviews	Brake Steer?... Twitch under Threshold Braking Goin z32 front calipers and I know its gona be a lot stronger braking power, so las nite I did some threshold braking to make sure cars ready... I accel to maybe 20-30mph, then step on the brakes harder and harder then stand on em [I want to stop hard, not skid]. Then rite b4 the car stops, I heard a clunk from the driver front wheel, and the steering wheel twitches. Feels like the driver front wheel is getting toe out. I have NISMO TC rod bushings, s14 5lug hub [so cant be older than 1995 bushings], and my tie rod is 1991 oem. Suspension is full coilover with pillow mounts. SO... any ideas wut that clunk is? My best gues is that since I have 17x7 +35 in front, the wheel center is a lil further out, putting torque at the hub, and making one of the bushings compress? Anyone else have this prob? Solve-able with poly bushings? __________________ KYB AGX w/ dust boots $500obo... sadly serious

11-25-2005, 05:59 PM	#3
thejester03 Zilvia Member Join Date: Apr 2005 Location: El Sereno, CA Age: 40 Posts: 159 Trader Rating: (0) Feedback Score: 0 reviews	Also, make sure you TC rod MOUNTS are tighly bolted down(well up). Mine were very loose when I got the car, that was UBER scary,My fire wall moved and my head lights angled way down it was so bad, 10 minutes with a 14mm socket and bamo, so more wheel movement, well other than my TC bushings are trashed, but any way, good thing to check, just get under there and make sure everything is tight. __________________ Signature Exceeds Forum Limits

11-26-2005, 01:55 AM	#4
jy116 Zilvia Addict Join Date: Aug 2003 Location: Berkeley, CALifornia Posts: 785 Trader Rating: (0) Feedback Score: 0 reviews	how the hell does the firewall move!?! Thnx for the feedback tho. Its all torqued to spec... its too loud to be the coilovers... those have been torqued to factory spec too... sum other ppl said maybe one side is locking up first?... or steering rack bushing? Ill get under it tmro :/ Its not too too major, car drives fine. Just a concern I had when imagining lots more braking power, and upcoming track day/s. __________________ KYB AGX w/ dust boots $500obo... sadly serious

11-26-2005, 04:59 PM	#7
thejester03 Zilvia Member Join Date: Apr 2005 Location: El Sereno, CA Age: 40 Posts: 159 Trader Rating: (0) Feedback Score: 0 reviews	Sorry, I meant radiator support.... __________________ Signature Exceeds Forum Limits

11-27-2005, 12:36 AM	#9
jy116 Zilvia Addict Join Date: Aug 2003 Location: Berkeley, CALifornia Posts: 785 Trader Rating: (0) Feedback Score: 0 reviews	o yeh... mine are blown... but i never noticed any lack of steering so its not high on my to do list... haha... ill go find some and change it someday soon. The coilover collars are tight, i didnt know wut u meant, but yeh... it was making noise b4, and I could move my whole wheel it was so lose, so I made sure all thats tite... "hella tite" ;] Thanks for the good suggestion folks __________________ KYB AGX w/ dust boots $500obo... sadly serious

11-25-2005, 02:52 PM	#2
Drunk Bastard Zilvia FREAK! Join Date: Nov 2003 Posts: 1,405 Trader Rating: (2) Feedback Score: 2 reviews	did you check the coilover like i mentioned in another thread?

11-26-2005, 04:01 AM	#5
Drunk Bastard Zilvia FREAK! Join Date: Nov 2003 Posts: 1,405 Trader Rating: (2) Feedback Score: 2 reviews	i dont mean the two bolts on the actual coilover, i mean the rings on the threads

11-26-2005, 06:28 AM	#6
NismoSilvia270R Zilvia Junkie Join Date: Jan 2004 Location: Clarksville Age: 39 Posts: 510 Trader Rating: (1) Feedback Score: 1 reviews	[QUOTE=jy116]how the hell does the firewall move!?! QUOTE] http://www.zilvia.net/f/showthread.p...aster+cylinder

11-26-2005, 06:10 PM	#8
kazuo Post Whore! Join Date: Aug 2002 Location: Posts: 2,762 Trader Rating: (3) Feedback Score: 3 reviews	Check your tie rod ends. Most people who get the clunk, its because the bushings on the ends are blown.