Reviews on RB sway bars.
#2
Lives on the Forum
They're bent round pieces of metal, what's to know? They work just fine, but aren't adjustable. If I were to do it again I'd probably go with Eibach as the rear is adjustable.
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#9
I have had the Racing Beat front bar on my car for almost 14 years. I never bought a larger rear bar because it was not legal for stock class SOLO II.
I had Koni's and Suspension Techniques Springs on the car and it handled very neutral both on street and track with the RB Front bar.
I am now running Stance Coilovers and with the factory rear bar connected there is way too much oversteer. Had the car swap ends in 80mph corner just after turn in (Turn 1 at Hallett). I have since disconnected the rear bar and the car is almost neutral with still a hint of oversteer. To my knowledge most if not all SCCA ITS RX-7's remove the rear sway bar.
My opinion is that a Rear sway bar on a non stock suspension RX-7 is not a wise investment.
I had Koni's and Suspension Techniques Springs on the car and it handled very neutral both on street and track with the RB Front bar.
I am now running Stance Coilovers and with the factory rear bar connected there is way too much oversteer. Had the car swap ends in 80mph corner just after turn in (Turn 1 at Hallett). I have since disconnected the rear bar and the car is almost neutral with still a hint of oversteer. To my knowledge most if not all SCCA ITS RX-7's remove the rear sway bar.
My opinion is that a Rear sway bar on a non stock suspension RX-7 is not a wise investment.
#10
Lives on the Forum
I checked my numbers and according to them the RB bars move the balance towards the front.
Many remove the rear bar for ITS, but a number of people still use them.
I run 7kg/mm (390lb/in) front and 5kg/mm (280lb/in) rear springs with an RB front and stock rear bar and it still understeers a little for me. I'm at a reasonably high ride height at the moment with a decent amount of rear camber (1.3) and not that much in the front (~2, that's what the pyrometer told me to do), so that'll have an effect. I'm going to try taking a little more camber out of the rear (temps were a little hotter on the inside still), but I'm thinking I'll re-install my RB rear bar for street driving and autocross anyway, and swap back to stock for the track if I can get it to balance out.
Eventually I want to weld some new ends with multiple holes onto the RB bars and the stock rear so I can do some more fine tuning of the balance.
Many remove the rear bar for ITS, but a number of people still use them.
I run 7kg/mm (390lb/in) front and 5kg/mm (280lb/in) rear springs with an RB front and stock rear bar and it still understeers a little for me. I'm at a reasonably high ride height at the moment with a decent amount of rear camber (1.3) and not that much in the front (~2, that's what the pyrometer told me to do), so that'll have an effect. I'm going to try taking a little more camber out of the rear (temps were a little hotter on the inside still), but I'm thinking I'll re-install my RB rear bar for street driving and autocross anyway, and swap back to stock for the track if I can get it to balance out.
Eventually I want to weld some new ends with multiple holes onto the RB bars and the stock rear so I can do some more fine tuning of the balance.
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