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Just talked to Betim. They have prototypes, and have completed bump and geometry analysis of the stock parts, along with the stress and materials analysis. However these are not 100% copies of the factory parts, the geometry is vastly improved over the factory's part. They designed them to work from 964 RS height and down to our BBI club racer height (aka) slammed. The camber and toe curves are as good as the front of a factory 997.2 cup car. The billet component is 2 times more rigid as well. Will reduce pad knock back due to casting flex.
Final sellable parts are about 8 weeks out. BBI will be accepting pre-orders.
Retail will be AROUND $2900.00 US for the pair (final pricing is TBD) and will include the RS style solid inner tie rod and a solid monoball outer tie rod with bump steer adjustment.
I have the rs evo gt2 whatever they are called factory parts on my car and these are being put on it along with some additional work Im doing to my 964.
And unavailable. Unfortunate difference in machined billet vs cast and low production runs and the engineering time. Oe rs inners unavailable. Best option is the ERP replicas of the solid inner with their adjustable outer tie rod
Thx for the update, OE RS uprights with inner / outer tie rods priced out ~$1500 total last I checked, these will be twice the price?
Not exactly an apples to apples comparison.
I think it's represents some great value given the improvements over the RS offerings.
Solid inner tie rod vs RS hard rubber
Adjustable outer tie rod monoball vs fixed OEM style
RS Camber/Toe curves vs GT3 Camber/Toe Curves
The value of the last one is unknown unless BBI can provide some more details. I heard rumors of guys trying to fit GT3 uprights to 993's for the better camber/toe curves so this is an interesting development.
My personal experience with RS uprights was a bit of an eye opener. I did not experience a bump steer problem unless I was out in west Marin where the right side of the road had a fair amount of bumps. I considered the RS uprights to solve the problem but thought my car was to high for that. I am in between ROW and RS height. I had a trusted shop (chassis setup guys for my race car) look at my car and he said the control arm angles sucked (his words) and would greatly benefit from the RS drop spindles. After install I was amazed how much better the front end grip was! Gone was the understeering pig as I knew for years. I suspect the stock system engineers in a fair amount of understeer to keep people safe. After the 930 I bet Porsche wanted to really dumb it down.
And unavailable. Unfortunate difference in machined billet vs cast and low production runs and the engineering time. Oe rs inners unavailable. Best option is the ERP replicas of the solid inner with their adjustable outer tie rod
Agreed, also just checked the status with Suncoast and seems its still the infinite waiting game. Looks like the prices of uprights just went up! Cant wait for these to be completed
I just dropped my 964 off to be "finished" well... other than the motor build!
I'll see if they can measure the toe change and curves on the car before and after. I have the factory 993 rs part on front of mine now.
I do get some pad knock on track even with brand new brembo brake kit new bearings and new everything on the car. It's pretty minor tho. So any increase in rigidity here will be hugely welcome.
Originally Posted by MarinS4
Not exactly an apples to apples comparison.
The value of the last one is unknown unless BBI can provide some more details. I heard rumors of guys trying to fit GT3 uprights to 993's for the better camber/toe curves so this is an interesting development.
THe answer is t depends. :-)
If his are copies of factory parts at rs height there still is bump street but rs waaaay less than factory stock parts.
The main advantage of the parts bbi is making is improved geometry and rigidity. The rigidity is a big deal. Pad knockback sucks and I get some on mine on track. Never on street.
05-08-2017, 04:20 AM
Alternative to 993 Evo Uprights being made
