TheLion
Well-Known Member
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Primarily a street car, but some Auto X for fun. I'm currently running the factory PP wheels and Pirellie tires. After having spent most of the winter, all of the spring and some of the summer with my RTR Tech 7 wheels and Pilot Sport tires, I noticed how much the PP GT seems to tramline compared to my Ecoboost with the same tires and wheels (but different springs / struts and sway-bar setup).
Both cars are lowered however the GT's front is a little more aggressively lowered with BMR SP080 springs vs. the Ford Performance Street X springs I had on the EB. I do have MM caster / camber plates installed so there's plenty I can adjust. Just wondering if anyone has been able to reduce tram-lining with wider off-set wheels.
Obviously increasing the scrub radius is going to induce some tram lining, but seems like my GT does it more than the Ecoboost did. I have no noticeably tram lining with the stock offset PP wheels and Pirellie Tire combo (although traction has dropped dramatically, sad the Zero's have less traction than Michelin All Seasons!). I have NOT yet gotten an alignment done with the GT, just wondering what Camber / Toe settings yall are using with 19" wide off-set wheels that works well for street and occasional auto X and if that helped with tram lining at all. I'm thinking the camber angle is a little too aggressive up front with the 1.2" drop as I set the camber plates dead in the middle, I'm guessing there's close to 2 degrees of camber, no idea what toe angle is either, but typically toe increases with compression of the suspension doesn't it?
It's not severe, but enough to sometimes be annoying and makes the car suddenly pull to one side with the road imperfections.
I'm running a 4-square setup of 19x9.5 RTR Tech 7 flow formed wheels. I believe the off-set is +33 on the 9.5's. This is the wheel but in black, I bought them from AM as a set originally with Pilot Sport AS3+'s which are now about bald and on the front inner should completely bald: https://www.mountunestore.com/products/rtr-tech-7-charcoal-wheel-19x9-5-15-17-all
Maybe with a 33 offset it won't get any better than it is, it's always a fight to balance feed-back vs. drive ability, but figured I'd ask.
Both cars are lowered however the GT's front is a little more aggressively lowered with BMR SP080 springs vs. the Ford Performance Street X springs I had on the EB. I do have MM caster / camber plates installed so there's plenty I can adjust. Just wondering if anyone has been able to reduce tram-lining with wider off-set wheels.
Obviously increasing the scrub radius is going to induce some tram lining, but seems like my GT does it more than the Ecoboost did. I have no noticeably tram lining with the stock offset PP wheels and Pirellie Tire combo (although traction has dropped dramatically, sad the Zero's have less traction than Michelin All Seasons!). I have NOT yet gotten an alignment done with the GT, just wondering what Camber / Toe settings yall are using with 19" wide off-set wheels that works well for street and occasional auto X and if that helped with tram lining at all. I'm thinking the camber angle is a little too aggressive up front with the 1.2" drop as I set the camber plates dead in the middle, I'm guessing there's close to 2 degrees of camber, no idea what toe angle is either, but typically toe increases with compression of the suspension doesn't it?
It's not severe, but enough to sometimes be annoying and makes the car suddenly pull to one side with the road imperfections.
I'm running a 4-square setup of 19x9.5 RTR Tech 7 flow formed wheels. I believe the off-set is +33 on the 9.5's. This is the wheel but in black, I bought them from AM as a set originally with Pilot Sport AS3+'s which are now about bald and on the front inner should completely bald: https://www.mountunestore.com/products/rtr-tech-7-charcoal-wheel-19x9-5-15-17-all
Maybe with a 33 offset it won't get any better than it is, it's always a fight to balance feed-back vs. drive ability, but figured I'd ask.
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