this is odd, SWB steering arm question?

[Fubawu]

Ok as some of you know I have been restoring and racing a 1967 911S. Being that its a race car
some of the parts have been modified/changed over the years.

My question is this, SWB cars have the tie rod that attaches to the steering arm from the top (nut on the bottom)

I upgraded to legthend Turbo tie rods and realized that the taper on the arms is reversed. Meaning the larger portion is
on the bottom and it tapers up?? The rod fits better from the bottom vs the top. This is a plus as the car is lowered and
allows the Tierod to sit level eliminating a large portion of bump steer. I can't see an evidence of arm modification/ my thought
was maybe the end of the arm was cut , flipped and welded back on. Does anyone know of another arm that fits the SWB set up?

Cheers

[Chris Pomares]

Do you have a picture or two?

[Fubawu]

Do you have a picture or two?

I'll take a couple tonight, I'm playing around with wheel sizes.

[Fubawu]

here are some pictures

[Chris Pomares]

I went through all my old pictures of my 67 912 and could only find two pictures. It looks like the nut was on the bottom. My suspension and brakes are different now. Those are Alfa Brembos in that picture. A small upgrade. I now run Boxster fronts on early 70's S Koni struts. I still use SWB A arms which I much prefer over the later LWB version with the parts on the link below. Camber adjustment with those ball joints is a snap. And 70-72 custom milled 42 mm 914 front calipers on the rear. That retains the 1.6 brake bias.
It looks like your trying to stay fairly stock so other than the picture most of the other stuff won't be of much use for your car.
Somebody must have better pictures than mine. I hope the pictures help some.

https://www.rsrproducts.com/product-...89-911-912-930

[jmz]

John,

I'll send you some pics.

[Fubawu]

Thanks guys, the pictures help. The issue I have is the taper matches from the bottom. I spoke with Chuck at Elephant and he said match the taper to the tierod.

My steering arms have a larger diameter on the bottom and taper up. I don't get it, the arms have been modified at some point

PS Chris we are running the same front brakes. How'd you find the 914 rear set up. What was the benefits?

[Chris Pomares]

I did some research then a few calls to Eric at PMB. 912 and 911 normals have a 35 mm piston. Your 911S has 38 mm rear pistons with the same pad. The 70 to 72 914 front caliper has a 42 mm piston and a bigger pad as I remember. If your running a Boxster Brembo with 38 mm rear pistons your bias has moved forward some which is quite safe actually. The Boxster has 4 pistons and a larger pad. The 4 pistons spread pressure over a larger area. That means you can add more brake to the rear up to a point with no ill effects and pick up a little more stopping power. Eric did the math and confirmed we are very close to the original front rear bias. I’ve run this for a year with no handling issues. I have to mention I don’t race. I hammer in the Colorado high passes. Some of the passes go down hill for 8 to 10 miles. Extra braking power is a comfort.

My next upgrade of the last upgrade from the orginial upgrade is Rebel's SWB 935 spring plates, Bilstein coilovers, and Elephant's GT3 type front suspension. After the body gets all the suspension pickup points strenghtened. At that point I'm thinking the suspension will be in it's final version.

[Fubawu]

Thanks for the information, I actually run the Brembo not the the Boxster. Did you run an upgraded rear with the Brembo?

[Chris Pomares]

Upgrades rear? If calipers yes the custom 914 caliper. I went up from 23 mm to 24 mm rear torsion bars, 19 mm fronts and 15 mm sways front and rear. I run Rebel's front and rear suspension bushings which I love. It takes a little time to set them up properly, but they are very smooth, don't squish and change suspension settings and never need grease. I have never understood the rubber bushing thing. The torsion bar or coilover is the spring. Let springs be springs, dampers damp, and let the suspension work more precisely. The car is set up as a GT car as in grand touring. It's a sporting ride but won't beat me up. Colorado roads are in poor condition.