Chassis reinforcement for race slick use. - Page 2 - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

RJasonKlein · 09-05-2016, 02:45 PM

Quote:

Originally Posted by EN2_Squirrel

I had axle issues with my hoosiers. So did the FRSPORT car. although both cars are being built for Street Mod. So that may explain of of it.

What failed specifically - the inner or outer joint, the splines, or the shaft itself?

nzer · 09-05-2016, 03:58 PM

Quote:

Originally Posted by MaximeT

I think the NZ cars are fully caged, no ?

This one :

http://www.speedhunters.com/2014/01/...ce-mode-engage

Yes, they are fully caged.

EN2_Squirrel · 09-06-2016, 12:58 PM

Quote:

Originally Posted by RJasonKlein

What failed specifically - the inner or outer joint, the splines, or the shaft itself?

Inside on one. And spectacularly on the other. I am supercharged but i had a massive boost leak when the failures occured.

Racecomp Engineering · 09-06-2016, 03:05 PM

When you're running slicks and serious suspension...it's time to think about a roll cage or at least a roll bar with proper seats and safety equipment.

Just my opinion...and Myles, Dan, Larry all here in the office nodding in agreement.

- Andrew

MaximeT · 09-06-2016, 03:23 PM

Quote:

Originally Posted by Racecomp Engineering

When you're running slicks and serious suspension...it's time to think about a roll cage or at least a roll bar with proper seats and safety equipment.

Just my opinion...and Myles, Dan, Larry all here in the office nodding in agreement.

- Andrew

Yes, I'm looking at the options at the moment.

I need to go safely from home to the track on the road.

My number one option is to use the future Gspeed bolt in half cage. Schroth ASM 4 point harness with added points 5 and 6.
Plus HANS at the track.

According to Schroth user manual it supposed to work with both track safety and oem airbag system.
As it's HANS compliant and still provide torso movement on the road.

If you have other idea, I'm super interested

For the record, I live in a non civilised country regarding building track cars.

Other options are still using the oem belt.
With a Tillett bucket seat that's made for oem belts or with a Bride reclining seat.

I'll take any serious advices and experience.

Racecomp Engineering · 09-06-2016, 03:57 PM

Quote:

Originally Posted by MaximeT

Yes, I'm looking at the options at the moment.

I need to go safely from home to the track on the road.

My number one option is to use the future Gspeed bolt in half cage. Schroth ASM 4 point harness with added points 5 and 6.
Plus HANS at the track.

According to Schroth user manual it supposed to work with both track safety and oem airbag system.
As it's HANS compliant and still provide torso movement on the road.

If you have other idea, I'm super interested

For the record, I live in a non civilised country regarding building track cars.

Other options are still using the oem belt.
With a Tillett bucket seat that's made for oem belts or with a Bride reclining seat.

I'll take any serious advices and experience.

You live in France! Your delicious wine, food, and women make up for a lot of things.

For a serious car (and in my opinion a car with slicks and badass JRZs is a serious car) I would recommend a HANS, HANS compliant FIA approved fixed back seat, HANS compliant 6 point harnesses, and at least a half cage.

This does make street driving a little more complicated. Theoretically you can keep your OEM steering wheel and airbag and keep the OEM 3 point belts in the car for street driving.

- Andrew

MaximeT · 09-06-2016, 04:03 PM

Do you know a FIA approved seat that can be used with OEM seatbelt receiver ?

I mean with a large enough lap belt opening.

Thanks for your time. It's really appreciated.

Racecomp Engineering · 09-06-2016, 04:30 PM

Quote:

Originally Posted by MaximeT

Do you know a FIA approved seat that can be used with OEM seatbelt receiver ?

I mean with a large enough lap belt opening.

Thanks for your time. It's really appreciated.

Hmm...that I'm not sure about.

No problem!

- Andrew

nikitopo · 09-12-2016, 06:08 AM

Quote:

Originally Posted by MaximeT

Do you know a FIA approved seat that can be used with OEM seatbelt receiver ?

Recaro has a street legal (ABE) bucket seat that can be used with OEM seatbelt. Check here: https://www.recaro-automotive.com/de...arbon-abe.html

Unfortunately, you will not find the appropriate rails and seat bracket for our car. You'll have to import them from Recaro Japan (did this sometime ago) or order something inferior from the US that might need some kind of modification ...

MaximeT · 09-12-2016, 06:17 AM

Quote:

Originally Posted by nikitopo

Recaro has a street legal (ABE) bucket seat that can be used with OEM seatbelt. Check here: https://www.recaro-automotive.com/de...arbon-abe.html

Unfortunately, you will not find the appropriate rails and seat bracket for our car. You'll have to import them from Recaro Japan (did this sometime ago) or order something inferior from the US that might need some kind of modification ...

Only the leather one got the big opening for seatbelt receiver ?
It can't be used with 6 points and is not FIA :/

nikitopo · 09-12-2016, 06:47 AM

Quote:

Originally Posted by MaximeT

Only the leather one got the big opening for seatbelt receiver ?
It can't be used with 6 points and is not FIA :/

All the seats have the big opening for seatbelt receiver. Probably in the leather there is less material around the opening. Yes, they are not FIA approved. Just for occasional track usage.

MaximeT · 09-12-2016, 06:57 AM

OK, thanks

AndMsc · 10-07-2021, 12:39 PM

Would a front fender brace help the car? I don't know how much flex is there. https://ramotorsports.ca/collections...z-fender-brace

norcalpb · 10-07-2021, 06:39 PM

I’ve heard the differential input shaft bearing can get damaged from super sticky tires, but just something I heard.

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09-06-2016, 03:05 PM	#18
Racecomp Engineering Join Date: Nov 2011 Drives: 2016 BRZ, 2012 Paris Di2 & 2018 STI Location: Severn, MD Posts: 5,520 Thanks: 3,542 Thanked 7,415 Times in 3,033 Posts Mentioned: 311 Post(s) Tagged: 9 Thread(s)	When you're running slicks and serious suspension...it's time to think about a roll cage or at least a roll bar with proper seats and safety equipment. Just my opinion...and Myles, Dan, Larry all here in the office nodding in agreement. - Andrew

10-07-2021, 12:39 PM	#27
AndMsc Member Join Date: Jun 2019 Drives: MY2018 GT86 EU Location: Cluj Posts: 74 Thanks: 44 Thanked 5 Times in 5 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Would a front fender brace help the car? I don't know how much flex is there. https://ramotorsports.ca/collections...z-fender-brace

10-07-2021, 06:39 PM	#28
norcalpb Senior Member Join Date: Oct 2013 Drives: 2013 BRZ, 2023 Model 3 Location: SF Bay Area Posts: 2,345 Thanks: 1,256 Thanked 902 Times in 590 Posts Mentioned: 15 Post(s) Tagged: 0 Thread(s)	I’ve heard the differential input shaft bearing can get damaged from super sticky tires, but just something I heard.

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