MCA Suspension "Traction Mod" - Page 21 - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

autoracer86 · 05-17-2024, 03:25 PM

First time ordering parts from Japan and Australia. I was very happy with the experience from japanparts.com Could easily see myself ordering more JDM goodness.

The MCA order took awhile which was shocking to me as so many people said they got their order within the same week haha. Anyway I got everything and hope to install it soon

RToyo86 · 05-18-2024, 09:11 AM

How do these effect autocross rules?
Local club is going more SCCA official and looks like my car slots into STX for my mods. MCA is only thing I'm unsure of.

Not overly concerned since I'm not competing full season, more just to scratch an itch.

autoracer86 · 05-18-2024, 09:40 AM

Mca is Illegal for stx. Not 100% sure if changing the bushing type is legal but the trailing arm might also be Illegal lol

whataboutbob · 05-18-2024, 10:07 AM

Trailing arm is an SM part.
Traction Mod is probably an XSA/XSB part.

Racecomp Engineering · 05-18-2024, 11:39 AM

We really should reach out to MCA and see if we can carry these stateside considering how often I tell people to buy this thing lol.

- Andrew

RToyo86 · 05-18-2024, 05:11 PM

Quote:

Originally Posted by whataboutbob

Trailing arm is an SM part.
Traction Mod is probably an XSA/XSB part.

Went ahead and registered XA after reviewing rules for that class.
Thanks for the tip.

DocWalt · 05-22-2024, 09:06 AM

Quote:

Originally Posted by whataboutbob

Trailing arm is an SM part.
Traction Mod is probably an XSA/XSB part.

Super frustrating to me that the traction mod isn't legal for SM even though effectively the same geometry change is legal by spending a LOT of time and money modifying the knuckle or building a new one

autoracer86 · 05-22-2024, 09:56 AM

Speaking of knuckle.... Would it be worthwhile to upgrade where the trailing arm connects to the knuckle ? I see a few pillow ball options for it. Not sure if it can be installed while on the car though...

autoracer86 · 05-26-2024, 03:45 AM

MCA traction mod and STi trailing arms installed. Made a noticeable difference in the way the car goes over bumps. Had a quick drive on one of my favorite back roads and was shocked at how much more planted the car was. It felt as if the rear suspension was working correctly instead of just sorta skipping and bouncing around.

I measured right height before and after no change

JohnH · 05-26-2024, 09:43 PM

Quote:

Originally Posted by Racecomp Engineering

We really should reach out to MCA and see if we can carry these stateside considering how often I tell people to buy this thing lol.

- Andrew

please do, and keep us posted. If your shipping to Canada is reasonable, I'll buy a set. Aussie shipping, despite our dollar being stronger than theirs, is just stupid.

While you are at it, ask if they'd make a set without the MCA logo. Simpler and less flashy is nicer for me.

Newbie BRZ · 05-27-2024, 04:57 AM

Quote:

Originally Posted by JohnH

please do, and keep us posted. If your shipping to Canada is reasonable, I'll buy a set. Aussie shipping, despite our dollar being stronger than theirs, is just stupid.

While you are at it, ask if they'd make a set without the MCA logo. Simpler and less flashy is nicer for me.

I agree, you get the product cheap. Then I think they use American owned shipping companies for international freight so you get screwed because your dollar is poor. Wait until someone else gets their hand in the pot.

EdBoy · 05-27-2024, 12:02 PM

Quote:

Originally Posted by autoracer86

MCA traction mod and STi trailing arms installed. Made a noticeable difference in the way the car goes over bumps. Had a quick drive on one of my favorite back roads and was shocked at how much more planted the car was. It felt as if the rear suspension was working correctly instead of just sorta skipping and bouncing around.

I measured right height before and after no change

nice to know the height didn't change
sti trailing arms worth it? I just got the traction mod delivered the other day

autoracer86 · 05-27-2024, 12:25 PM

Quote:

Originally Posted by EdBoy

nice to know the height didn't change
sti trailing arms worth it? I just got the traction mod delivered the other day

Hard to say without doing back to back testing. My gut tells me no but I am happy I got rid of the old crusty ones and it can't be worse than stock lol.

EdBoy · 05-28-2024, 02:43 AM

another question, has anyone installed these with the whiteline subframe bushings? gonna tackle them sometime this week when i have time

05-17-2024, 03:25 PM	#281
autoracer86 Senior Member Join Date: Jul 2022 Drives: Toyota GT86 Location: Ireland Posts: 592 Thanks: 526 Thanked 414 Times in 263 Posts Mentioned: 5 Post(s) Tagged: 0 Thread(s)	First time ordering parts from Japan and Australia. I was very happy with the experience from japanparts.com Could easily see myself ordering more JDM goodness. The MCA order took awhile which was shocking to me as so many people said they got their order within the same week haha. Anyway I got everything and hope to install it soon Attached Images __________________ SpareRoomRacing Youtube: https://www.youtube.com/@spareroomracing3168/featured Build Thread: https://www.ft86club.com/forums/showthread.php?t=153004

05-18-2024, 09:40 AM	#283
autoracer86 Senior Member Join Date: Jul 2022 Drives: Toyota GT86 Location: Ireland Posts: 592 Thanks: 526 Thanked 414 Times in 263 Posts Mentioned: 5 Post(s) Tagged: 0 Thread(s)	Mca is Illegal for stx. Not 100% sure if changing the bushing type is legal but the trailing arm might also be Illegal lol __________________ SpareRoomRacing Youtube: https://www.youtube.com/@spareroomracing3168/featured Build Thread: https://www.ft86club.com/forums/showthread.php?t=153004

05-22-2024, 09:56 AM	#288
autoracer86 Senior Member Join Date: Jul 2022 Drives: Toyota GT86 Location: Ireland Posts: 592 Thanks: 526 Thanked 414 Times in 263 Posts Mentioned: 5 Post(s) Tagged: 0 Thread(s)	Speaking of knuckle.... Would it be worthwhile to upgrade where the trailing arm connects to the knuckle ? I see a few pillow ball options for it. Not sure if it can be installed while on the car though... __________________ SpareRoomRacing Youtube: https://www.youtube.com/@spareroomracing3168/featured Build Thread: https://www.ft86club.com/forums/showthread.php?t=153004

05-26-2024, 03:45 AM	#289
autoracer86 Senior Member Join Date: Jul 2022 Drives: Toyota GT86 Location: Ireland Posts: 592 Thanks: 526 Thanked 414 Times in 263 Posts Mentioned: 5 Post(s) Tagged: 0 Thread(s)	MCA traction mod and STi trailing arms installed. Made a noticeable difference in the way the car goes over bumps. Had a quick drive on one of my favorite back roads and was shocked at how much more planted the car was. It felt as if the rear suspension was working correctly instead of just sorta skipping and bouncing around. I measured right height before and after no change Attached Images __________________ SpareRoomRacing Youtube: https://www.youtube.com/@spareroomracing3168/featured Build Thread: https://www.ft86club.com/forums/showthread.php?t=153004 Last edited by autoracer86; 05-26-2024 at 05:52 AM.

05-28-2024, 02:43 AM	#294
EdBoy Driver Join Date: Sep 2013 Drives: 16 Subaru BRZ Location: San Diego, CA Posts: 188 Thanks: 35 Thanked 46 Times in 42 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	another question, has anyone installed these with the whiteline subframe bushings? gonna tackle them sometime this week when i have time __________________ BRZ Build Thread See you space cowboy...

05-18-2024, 09:11 AM	#282
RToyo86 Senior Member Join Date: Mar 2018 Drives: 17 Asphalt 86 Location: Ottawa Posts: 2,288 Thanks: 1,830 Thanked 2,440 Times in 1,218 Posts Mentioned: 15 Post(s) Tagged: 0 Thread(s)	How do these effect autocross rules? Local club is going more SCCA official and looks like my car slots into STX for my mods. MCA is only thing I'm unsure of. Not overly concerned since I'm not competing full season, more just to scratch an itch.

05-18-2024, 11:39 AM	#285
Racecomp Engineering Join Date: Nov 2011 Drives: 2016 BRZ, 2012 Paris Di2 & 2018 STI Location: Severn, MD Posts: 5,479 Thanks: 3,512 Thanked 7,370 Times in 3,013 Posts Mentioned: 308 Post(s) Tagged: 9 Thread(s)	We really should reach out to MCA and see if we can carry these stateside considering how often I tell people to buy this thing lol. - Andrew

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