Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community - FT86CLUB - View Single Post - Let's talk traction on these bastardized 86s!

Clash0901 · 01-21-2021, 02:37 PM

I've got my 2jz swapped BRZ running and has been for the better part of 2 years now. Having some issues with traction on high boost so i'm wondering if we can't all share some of our knowledge on the matter.

I'm not officially dyno'd but with these 2jz's there's no question on 30psi of boost i'm above 600ft lbs of torque. On a Nitto NT555R 275/40zr17 i'm breaking the tires loose in 5th gear on the freeway.

My suspension is Tein Flex Z (not the most expensive setup, i know) and stiffer diff bushings. I have the suspension set to full soft and the car is lowered as much as possible without obscene amounts of rubbing.

Has anybody been able to get better traction results on the street with a streetable tire? Something that isn't a full slick, and if caught in rain the car wont kill you at 40mph. If I lower the boost to about 20 psi, the car is manageable, but what's the point in that? Just looking for some recommendations from others with similar or even higher power in this chassis. Being so light in the rear is proving to be a challenge indeed.

EDIT: is300 m85 3.73 rear end and running about 20 psi on rear tires.

Thanks!

01-21-2021, 02:37 PM	#1
Clash0901 2 ugga dugga's Join Date: Nov 2017 Drives: Nike Location: Detroit Posts: 230 Thanks: 56 Thanked 189 Times in 106 Posts Mentioned: 0 Post(s) Tagged: 1 Thread(s)	Let's talk traction on these bastardized 86s! I've got my 2jz swapped BRZ running and has been for the better part of 2 years now. Having some issues with traction on high boost so i'm wondering if we can't all share some of our knowledge on the matter. I'm not officially dyno'd but with these 2jz's there's no question on 30psi of boost i'm above 600ft lbs of torque. On a Nitto NT555R 275/40zr17 i'm breaking the tires loose in 5th gear on the freeway. My suspension is Tein Flex Z (not the most expensive setup, i know) and stiffer diff bushings. I have the suspension set to full soft and the car is lowered as much as possible without obscene amounts of rubbing. Has anybody been able to get better traction results on the street with a streetable tire? Something that isn't a full slick, and if caught in rain the car wont kill you at 40mph. If I lower the boost to about 20 psi, the car is manageable, but what's the point in that? Just looking for some recommendations from others with similar or even higher power in this chassis. Being so light in the rear is proving to be a challenge indeed. EDIT: is300 m85 3.73 rear end and running about 20 psi on rear tires. Thanks! __________________ Want to 2JZ swap your 86? Click here first!! Last edited by Clash0901; 01-21-2021 at 05:37 PM.