There's more than changing the lowers going on there I think. First you took a balanced car and played with it - wider tires, spacers, different alignment, different watts link (roll ceneter) settings. I also think the lowers changed the game from where you were as well. Now you're chasing a ghost - it's not there anymore.
The suspension engineers from Dick Guldstrand on have taken the stock sub and gone as far as they can. The vendors each have their version of what works best. Many won't agree w me, but I think in our segment, Corvette geo gets copied most. This gets you to a wider tire and a better camber curve aka contact patch. I'm no engineer, but I don't think that's gonna happen w the stock sub. You also have not yet experimented w a true coil over set up w your favorite shock angle/spring rate/sway bar. All this needs to be dialed in.
There's alot smarter guys on here than me, I'm just just spitballin'...
My understanding is that the Gulstrand mod allows for more camber gain in compression and also will allow for more caster. Tubular control arms give us more caster and camber but not more camber gain in compression which I'm thinking the Guldstrand mod will pick up.
I'm not clear on what moving the lower control arm would do. If I go through it in my head, raising it and moving it out will give more camber gain but what else?
You're running GW lowers right? Although a fan of their stuff, there's a guy on PT that had a huge proplem w them. He had to change uppers/lowers out to SPCs (Marcus helped him) to get his wheel centered in the well. He also changed his spinde but I don't think that was the problem. IMHO not every vendor's lowers place the spindle/BJ in the same lcoation.
To answer your question, I don't know of any lower that adds caster and most vendors don't advertise their caster/camber changes.
There's more than changing the lowers going on there I think. First you took a balanced car and played with it - wider tires, spacers, different alignment, different watts link (roll ceneter) settings. I also think the lowers changed the game from where you were as well. Now you're chasing a ghost - it's not there anymore.
The suspension engineers from Dick Guldstrand on have taken the stock sub and gone as far as they can. The vendors each have their version of what works best. Many won't agree w me, but I think in our segment, Corvette geo gets copied most. This gets you to a wider tire and a better camber curve aka contact patch. I'm no engineer, but I don't think that's gonna happen w the stock sub. You also have not yet experimented w a true coil over set up w your favorite shock angle/spring rate/sway bar. All this needs to be dialed in.
There's alot smarter guys on here than me, I'm just just spitballin'...
Ron, you are absolutely right, its all about Balance, knowing where you are when you start and where things go when you make a change. But the number one in my belief system is driver confidence and comfort with his/her vehicle.
Brian Hobaugh SCCA National Tour June 2014
First Hemi 'Cuda Convertible Ever Built
Short clips: Goodguys Pleasanton autocross and pit videos
Hybrid Mode
