This is the roll center, suspension pickup, and steering angle modification thread. - Page 85 - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

PoorMans180SX · 03-10-2011, 01:26 PM

I was not directing the comment at you personally, just as an answer to your question.

mmdb is asking nieko if he has the driftworks knuckles (which he does not) because I believe he never got to test them on his own car when it was still together and wants to see how they fair on the roadcourse.

motoxris · 03-13-2011, 01:35 AM

Hey guys. I thought I would go ahead and throw something new out there for all the super low guys blow axles, and guys with extended RLCA.

I'm making axle spacers. 19mm, 3/4" thick

It's kind of late so here is some pictures we can talk about.

Enjoy.

First you get an idea.

Then you make it real.

*Jonnie Fraz* · 03-13-2011, 12:00 PM

Nice work!

motoxris · 03-13-2011, 12:59 PM

Thanks. Quite a bit went into making the fitment and clearances good as can be.

*kognition* · 03-13-2011, 05:32 PM

That is quite ingenius man. Hats off to you.

motoxris · 03-13-2011, 05:48 PM

Thanks a bunch. I just bolted them to the car. They fit nice. I had to disconnect the coilover and links to install. Once installed, I jack the car up with the jack under the control arm. With the control arm level there still was a quarter inch of play in axle. Honnestly It's only a few minutes of work. Resin I say that is people were worried about ease of install.

motoxris · 03-14-2011, 12:27 AM

This is all the stuff my brother is offering work for.

Enjoy.

Drift spec knuckles. Track tested and proven with crazy angle. Also has bump steer correction. More than the competitors.

Here is same great angle with these parts.

This the crossmember with 25mm forward rack relocation.

Z33dori · 03-15-2011, 11:10 AM

legit

GTI Technical Innovations...

nieko · 03-15-2011, 11:13 AM

How much are they charging for those? Shit looks BEEEEFY LOL

PerilousActs · 03-15-2011, 12:06 PM

Wonder how much they weight.

uperformance · 03-15-2011, 12:36 PM

that is some crazy angle my friend, what does he charge to do the crossmember mod?

Quote:

Originally Posted by motoxris

This is all the stuff my brother is offering work for.

Enjoy.

Drift spec knuckles. Track tested and proven with crazy angle. Also has 25mm bump steer correction.

Here is same great angle with these parts.

This the crossmember with 25mm forward rack relocation.

motoxris · 03-15-2011, 01:14 PM

I'm actually not a 100% sure but he is charging only 100 for the knuckle mods to give you a ballpark estimate. I think $100 for the crossmember. I'll ask him when he gets back.

motoxris · 03-15-2011, 01:17 PM

Yeah it's $100 for the cross member with the core.

articdragon192 · 03-15-2011, 11:13 PM

Quote:

Originally Posted by Z33dori

legit

GTI Technical Innovations...

How do you adjust length without disconnecting the LCA?

Z33dori · 03-15-2011, 11:29 PM

Set it once?

singlecamslam · 03-15-2011, 11:31 PM

It will only take like 2 more minutes to undo that nut. I think that whole middle adjuster piece that you wrench on is unnecessary on the control arms.
Hope i can afford the Dmax roll adjuster procedure, or i'm just gonna have to make my own again...

atutt · 03-15-2011, 11:54 PM

Quote:

Originally Posted by Z33dori

legit

GTI Technical Innovations...

That's an awfully thick block to be welding to the thin stamped sheet like metal in the LCA....

I personally don't know if I'd trust that idea....

singlecamslam · 03-16-2011, 12:29 AM

I have a question, is there any other brand besides SPL that sells offset bushings to get the s14 subframe into s13?

az_240 · 03-16-2011, 12:34 AM

^Stance makes em
Stance Subframe Conversion Bushing Set - 240sx S13/S14

Also try PMing PBM. I think they said they were going to start making them....can't remember.

i need tires · 03-16-2011, 12:34 AM

Quote:

Originally Posted by motoxris

Yeah it's $100 for the cross member with the core.

$100 also for knuckles?

Patrick Bowering · 03-16-2011, 02:26 AM

Quote:

Originally Posted by Z33dori

legit

GTI Technical Innovations...

and matt powers has switched to driftworks front and rear knuckles now too.

Pstl_pete · 03-16-2011, 01:23 PM

Does anyone have feedback on the Nagisa Auto roll center ball joints front and rear? Before and after with them? Etc?

Im considering a set but the investment of $500+ dollars into a set seems to be quite expensive for a street car.

gobackwards · 03-20-2011, 11:44 AM

Quote:

Originally Posted by uperformance

that is some crazy angle my friend, what does he charge to do the crossmember mod?

seen this in action, it's pretty rad. I'm gonna have them make me some stuff asap.

Csomme · 03-20-2011, 01:17 PM

Alright guys, let's get this kicked off again. I want to pick some brains here. We have a somewhat good setup on this car, but we're looking for more. This is my friend Bens car that he built himself and will be competing in Formula D proam on the east coast with this year.

Heres the car setup:

S13 with 403HP LS2
PSM knuckles with RCC and decreased akerman(spelling?)
Godspeed lower control arms.
Godspeed front and rear sway bars
All adjustable arms
Running 235/40/17 Nitto NT05's up front at 33psi
Running 255/40/17 federals in the rear run around 25psi hot
PSM coilovers REARS: full soft FRONT: 3 clicks from soft

Alignment is:
FRONT:
Camber: 4 degrees
Caster: 7 degrees (stock is 6.7)
Toe: .05 out

REAR
Camber: .5 degrees
Toe: .05 in

Car is not too low, he really likes the front setup, and his front grip, however, we aren't seeing the speed we'd like to in drift. We need more forward bite.

One thing we do realize is that this could be gained(at least a little) from decent throttle modulation, especially being a v8 and high torque motor, instead of almost tacking it out every run.

But we need tons of more forward bite, we need to get faster in the turns to improve our competitiveness.

We need to do this without changing tire size, and with suspension

So I'm just looking to pick brains of the smarter people in here about what to do about more forward bite. Any advice at all would be helpfull.

Also, we were wondering about a good contact patch for the front. Are we running too much camber up front? Too much caster? Or is this okay? We figured we're fine because Ben loves the way the front feels, but it's something we were all wondering about.

This is him at full lock entering hard. look at the contact patch of the leading wheel versus the trailing. Problem?

Just trying to get input from smarter people than I

BTW, Dan at PSM, thank you so much for your wonderful products, we obviously love them and Ben puts them to good use

Z33dori · 03-20-2011, 01:56 PM

do this

I'm still curious to know if having reverse rake works for forward bite. Since the weight of the car has to continue back over the wheels.

Csomme · 03-20-2011, 02:08 PM

Haha, I'm sure we would have already done that if it wasn't for the Formula D rulebook stating that we couldn't.

Z33dori · 03-20-2011, 02:23 PM

you can move them within and Inch, or did they change that?

Csomme · 03-20-2011, 02:35 PM

It was my understanding that NO factory pick ups on the chassis or subframe(s) could be modified..... If I'm wrong, that's awesome. I'd love to see this thing with less anti-squat. And it would take like 10 minutes to do. lol

Def · 03-20-2011, 02:43 PM

Can you rotate the subframe some to reduce antisquat? I hated how my car felt with a shorter traction rod in the rear. Bumped it up 1/4" over stock and the rear end feels much more solid (track car, not a drift car, but I imagine traction is traction to some extent).

Maybe try adjusting traction rod length and see how it changes the rear traction of the car.

I'd also take out all of that toe in, or at least most of it. You could be running them at too high of a slip angle with all that toe in where you get less traction.

Csomme · 03-20-2011, 02:48 PM

Correction, Toe is .05 in, not .5, lol That's the definitely the wrong place for a typo.

We have the PSM subframe risers in the rear, so adjusting the angle of the subframe really isn't a possibility right now, but if we grabbed a new subframe and put SPL's stuff in it would be.

Also, we'll mess with the traction rod at the next practice event we go to for sure, I'm still not sure what that thing does! I mean, I know what it does, but how the suspension and overall feel is affecting by either shortening it or lengthening it, I have no clue.

03-10-2011, 01:26 PM	#2521
PoorMans180SX Zilvia.net Advertiser Join Date: Nov 2005 Location: Michigan Age: 36 Posts: 5,574 Trader Rating: (16) Rides Gallery: PoorMans180SX Feedback Score: 16 reviews	I was not directing the comment at you personally, just as an answer to your question. mmdb is asking nieko if he has the driftworks knuckles (which he does not) because I believe he never got to test them on his own car when it was still together and wants to see how they fair on the roadcourse. __________________ Build: http://zilvia.net/f/showthread.php?t=643065 Friends don't let friends buy knock-offs.

03-13-2011, 12:00 PM	#2523
Jonnie Fraz Premium Member Join Date: Jan 2005 Location: Cali Age: 56 Posts: 1,371 Trader Rating: (29) Rides Gallery: Jonnie Fraz Feedback Score: 29 reviews	Nice work! __________________ Stealth-Custom-Fab.com

03-14-2011, 12:27 AM	#2527
motoxris Leaky Injector Join Date: Apr 2010 Location: Grover Beach Age: 40 Posts: 104 Trader Rating: (0) Feedback Score: 0 reviews	This is all the stuff my brother is offering work for. Enjoy. Drift spec knuckles. Track tested and proven with crazy angle. Also has bump steer correction. More than the competitors. Here is same great angle with these parts. This the crossmember with 25mm forward rack relocation. Last edited by motoxris; 03-15-2011 at 01:19 PM..

03-15-2011, 11:10 AM	#2528
Z33dori Post Whore! Join Date: Dec 2006 Location: Riverview, FL Age: 35 Posts: 5,557 Trader Rating: (12) Feedback Score: 12 reviews	legit GTI Technical Innovations... __________________

03-15-2011, 12:06 PM	#2530
PerilousActs Zilvia Junkie Join Date: Feb 2009 Location: Walton, Kentucky Age: 33 Posts: 545 Trader Rating: (6) Feedback Score: 6 reviews	Wonder how much they weight. __________________ My Website \| Unfriendly Garage \| Endurance Motorsports \| FitMyWheels - Fitment Calculator

03-13-2011, 01:35 AM	#2522
motoxris Leaky Injector Join Date: Apr 2010 Location: Grover Beach Age: 40 Posts: 104 Trader Rating: (0) Feedback Score: 0 reviews	Hey guys. I thought I would go ahead and throw something new out there for all the super low guys blow axles, and guys with extended RLCA. I'm making axle spacers. 19mm, 3/4" thick It's kind of late so here is some pictures we can talk about. Enjoy. First you get an idea. Then you make it real.

03-13-2011, 12:59 PM	#2524
motoxris Leaky Injector Join Date: Apr 2010 Location: Grover Beach Age: 40 Posts: 104 Trader Rating: (0) Feedback Score: 0 reviews	Thanks. Quite a bit went into making the fitment and clearances good as can be.

03-13-2011, 05:32 PM	#2525
kognition Premium Member Join Date: May 2004 Location: Santee California Posts: 2,107 Trader Rating: (6) Feedback Score: 6 reviews	That is quite ingenius man. Hats off to you.

03-13-2011, 05:48 PM	#2526
motoxris Leaky Injector Join Date: Apr 2010 Location: Grover Beach Age: 40 Posts: 104 Trader Rating: (0) Feedback Score: 0 reviews	Thanks a bunch. I just bolted them to the car. They fit nice. I had to disconnect the coilover and links to install. Once installed, I jack the car up with the jack under the control arm. With the control arm level there still was a quarter inch of play in axle. Honnestly It's only a few minutes of work. Resin I say that is people were worried about ease of install.

03-15-2011, 11:13 AM	#2529
nieko Post Whore! Join Date: Sep 2007 Location: Westminster Age: 33 Posts: 2,695 Trader Rating: (14) Feedback Score: 14 reviews	How much are they charging for those? Shit looks BEEEEFY LOL

03-15-2011, 01:14 PM	#2532
motoxris Leaky Injector Join Date: Apr 2010 Location: Grover Beach Age: 40 Posts: 104 Trader Rating: (0) Feedback Score: 0 reviews	I'm actually not a 100% sure but he is charging only 100 for the knuckle mods to give you a ballpark estimate. I think $100 for the crossmember. I'll ask him when he gets back.

03-15-2011, 01:17 PM	#2533
motoxris Leaky Injector Join Date: Apr 2010 Location: Grover Beach Age: 40 Posts: 104 Trader Rating: (0) Feedback Score: 0 reviews	Yeah it's $100 for the cross member with the core.

03-15-2011, 11:29 PM	#2535
Z33dori Post Whore! Join Date: Dec 2006 Location: Riverview, FL Age: 35 Posts: 5,557 Trader Rating: (12) Feedback Score: 12 reviews	Set it once? __________________

03-15-2011, 11:31 PM	#2536
singlecamslam Post Whore! Join Date: Apr 2008 Location: Norcal Posts: 2,534 Trader Rating: (10) Feedback Score: 10 reviews	It will only take like 2 more minutes to undo that nut. I think that whole middle adjuster piece that you wrench on is unnecessary on the control arms. Hope i can afford the Dmax roll adjuster procedure, or i'm just gonna have to make my own again...

03-16-2011, 12:29 AM	#2538
singlecamslam Post Whore! Join Date: Apr 2008 Location: Norcal Posts: 2,534 Trader Rating: (10) Feedback Score: 10 reviews	I have a question, is there any other brand besides SPL that sells offset bushings to get the s14 subframe into s13?

03-16-2011, 12:34 AM	#2539
az_240 Post Whore! Join Date: Jan 2006 Location: Phx Posts: 3,097 Trader Rating: (41) Feedback Score: 41 reviews	^Stance makes em Stance Subframe Conversion Bushing Set - 240sx S13/S14 Also try PMing PBM. I think they said they were going to start making them....can't remember.

03-16-2011, 01:23 PM	#2542
Pstl_pete Zilvia Junkie Join Date: Nov 2004 Location: LA,CA & Windsor, ON Posts: 443 Trader Rating: (4) Feedback Score: 4 reviews	Does anyone have feedback on the Nagisa Auto roll center ball joints front and rear? Before and after with them? Etc? Im considering a set but the investment of $500+ dollars into a set seems to be quite expensive for a street car. __________________ S14 - New SR Project http://www.speed.academy

03-20-2011, 01:17 PM	#2544
Csomme Zilvia FREAK! Join Date: Feb 2009 Location: north carolinazzz Age: 33 Posts: 1,009 Trader Rating: (4) Feedback Score: 4 reviews	Alright guys, let's get this kicked off again. I want to pick some brains here. We have a somewhat good setup on this car, but we're looking for more. This is my friend Bens car that he built himself and will be competing in Formula D proam on the east coast with this year. Heres the car setup: S13 with 403HP LS2 PSM knuckles with RCC and decreased akerman(spelling?) Godspeed lower control arms. Godspeed front and rear sway bars All adjustable arms Running 235/40/17 Nitto NT05's up front at 33psi Running 255/40/17 federals in the rear run around 25psi hot PSM coilovers REARS: full soft FRONT: 3 clicks from soft Alignment is: FRONT: Camber: 4 degrees Caster: 7 degrees (stock is 6.7) Toe: .05 out REAR Camber: .5 degrees Toe: .05 in Car is not too low, he really likes the front setup, and his front grip, however, we aren't seeing the speed we'd like to in drift. We need more forward bite. One thing we do realize is that this could be gained(at least a little) from decent throttle modulation, especially being a v8 and high torque motor, instead of almost tacking it out every run. But we need tons of more forward bite, we need to get faster in the turns to improve our competitiveness. We need to do this without changing tire size, and with suspension So I'm just looking to pick brains of the smarter people in here about what to do about more forward bite. Any advice at all would be helpfull. Also, we were wondering about a good contact patch for the front. Are we running too much camber up front? Too much caster? Or is this okay? We figured we're fine because Ben loves the way the front feels, but it's something we were all wondering about. This is him at full lock entering hard. look at the contact patch of the leading wheel versus the trailing. Problem? Just trying to get input from smarter people than I BTW, Dan at PSM, thank you so much for your wonderful products, we obviously love them and Ben puts them to good use Last edited by Csomme; 03-20-2011 at 02:45 PM..

03-20-2011, 01:56 PM	#2545
Z33dori Post Whore! Join Date: Dec 2006 Location: Riverview, FL Age: 35 Posts: 5,557 Trader Rating: (12) Feedback Score: 12 reviews	do this I'm still curious to know if having reverse rake works for forward bite. Since the weight of the car has to continue back over the wheels. __________________

03-20-2011, 02:08 PM	#2546
Csomme Zilvia FREAK! Join Date: Feb 2009 Location: north carolinazzz Age: 33 Posts: 1,009 Trader Rating: (4) Feedback Score: 4 reviews	Haha, I'm sure we would have already done that if it wasn't for the Formula D rulebook stating that we couldn't.

03-20-2011, 02:23 PM	#2547
Z33dori Post Whore! Join Date: Dec 2006 Location: Riverview, FL Age: 35 Posts: 5,557 Trader Rating: (12) Feedback Score: 12 reviews	you can move them within and Inch, or did they change that? __________________

03-20-2011, 02:35 PM	#2548
Csomme Zilvia FREAK! Join Date: Feb 2009 Location: north carolinazzz Age: 33 Posts: 1,009 Trader Rating: (4) Feedback Score: 4 reviews	It was my understanding that NO factory pick ups on the chassis or subframe(s) could be modified..... If I'm wrong, that's awesome. I'd love to see this thing with less anti-squat. And it would take like 10 minutes to do. lol

03-20-2011, 02:43 PM	#2549
Def Post Whore! Join Date: Apr 2004 Location: Houston, TX Posts: 2,701 Trader Rating: (16) Feedback Score: 16 reviews	Can you rotate the subframe some to reduce antisquat? I hated how my car felt with a shorter traction rod in the rear. Bumped it up 1/4" over stock and the rear end feels much more solid (track car, not a drift car, but I imagine traction is traction to some extent). Maybe try adjusting traction rod length and see how it changes the rear traction of the car. I'd also take out all of that toe in, or at least most of it. You could be running them at too high of a slip angle with all that toe in where you get less traction. __________________ S13 Hatch - Goes around tracks quickly DEFSPORT

03-20-2011, 02:48 PM	#2550
Csomme Zilvia FREAK! Join Date: Feb 2009 Location: north carolinazzz Age: 33 Posts: 1,009 Trader Rating: (4) Feedback Score: 4 reviews	Correction, Toe is .05 in, not .5, lol That's the definitely the wrong place for a typo. We have the PSM subframe risers in the rear, so adjusting the angle of the subframe really isn't a possibility right now, but if we grabbed a new subframe and put SPL's stuff in it would be. Also, we'll mess with the traction rod at the next practice event we go to for sure, I'm still not sure what that thing does! I mean, I know what it does, but how the suspension and overall feel is affecting by either shortening it or lengthening it, I have no clue.