Front suspension upgrade for Porsche 944/968
12-21-2016, 02:29 PM
#77
Nordschleife Master
12-21-2016, 02:39 PM
#79
Nordschleife Master
12-21-2016, 05:18 PM
#81
Intermediate
I keep reading about how the steel arms flex, especially with large sway bars, but how much doe they REALLY flex under normal street driving conditions (even mildly aggressive street conditions). I'm considering swapping from aluminum to steel and reinforcing, rather than dropping $200 every 10 years. Unfortunately, that 10 years is up right now, along with the wheel bearings (which disintegrated), a brake job, new struts/shocks all around cause they were shot, and new master/slave for clutch.
I bought a well used, not well loved, 944 and there's more wrong than I realized.
I bought a well used, not well loved, 944 and there's more wrong than I realized.
12-21-2016, 05:49 PM
#83
Nordschleife Master
About 30mm longer. You could in theory cut and weld in a spacer at the ball joint end to extend the ball joint out 30mm, then box the whole arm to make it stronger. Seems like a lot of work.
12-21-2016, 06:52 PM
#84
Rainman
Rennlist Member
Rennlist Member
the early BJ just has a 3-bolt flange thing. would think you could just make a bolt-on extender piece rather than having to weld anything as a "standard" arm...then welding for "track" cars..
12-21-2016, 07:29 PM
#85
Intermediate
So, if I get this correctly:
1) Steel are the same length from CL of swing-mount to CL of ball joint as the early Aluminum (which went until when?)
2) Late Aluminum are 30mm long from swing-mount to CL of ball joint, but otherwise identical?
3) Strut Length is longer on late than on early, correct?
4) Spindle on late is same as or different from early?
5) Strut tower on late is same as or different from early?
If 1-3 above are correct, that explains how they retain camber alignment by going to a longer control arm.
1) Steel are the same length from CL of swing-mount to CL of ball joint as the early Aluminum (which went until when?)
2) Late Aluminum are 30mm long from swing-mount to CL of ball joint, but otherwise identical?
3) Strut Length is longer on late than on early, correct?
4) Spindle on late is same as or different from early?
5) Strut tower on late is same as or different from early?
If 1-3 above are correct, that explains how they retain camber alignment by going to a longer control arm.
12-21-2016, 08:31 PM
#86
Nordschleife Master
So, if I get this correctly:
1) Steel are the same length from CL of swing-mount to CL of ball joint as the early Aluminum (which went until when?) Yes, early steel went to 85.5, early aluminum was 86 only, late started in 87
2) Late Aluminum are 30mm long from swing-mount to CL of ball joint, but otherwise identical? No, late aluminum arms are 30mm longer overall than early, but otherwise identical to early aluminum
3) Strut Length is longer on late than on early, correct? No, they are the same
4) Spindle on late is same as or different from early? Different by about 4 degrees with different camber bolt spacing
5) Strut tower on late is same as or different from early? If you mean "strut mount" they are different. The actual strut towers on the body where the struts fit into are the same on all models, early or late
If 1-3 above are correct, that explains how they retain camber alignment by going to a longer control arm. No, camber is adjusted on all models, early or late, by an eccentric bolt on the spindle.
1) Steel are the same length from CL of swing-mount to CL of ball joint as the early Aluminum (which went until when?) Yes, early steel went to 85.5, early aluminum was 86 only, late started in 87
2) Late Aluminum are 30mm long from swing-mount to CL of ball joint, but otherwise identical? No, late aluminum arms are 30mm longer overall than early, but otherwise identical to early aluminum
3) Strut Length is longer on late than on early, correct? No, they are the same
4) Spindle on late is same as or different from early? Different by about 4 degrees with different camber bolt spacing
5) Strut tower on late is same as or different from early? If you mean "strut mount" they are different. The actual strut towers on the body where the struts fit into are the same on all models, early or late
If 1-3 above are correct, that explains how they retain camber alignment by going to a longer control arm. No, camber is adjusted on all models, early or late, by an eccentric bolt on the spindle.
12-21-2016, 10:01 PM
#87
Rennlist Member
I keep reading about how the steel arms flex, especially with large sway bars, but how much doe they REALLY flex under normal street driving conditions (even mildly aggressive street conditions). I'm considering swapping from aluminum to steel and reinforcing, rather than dropping $200 every 10 years. Unfortunately, that 10 years is up right now, along with the wheel bearings (which disintegrated), a brake job, new struts/shocks all around cause they were shot, and new master/slave for clutch.
I bought a well used, not well loved, 944 and there's more wrong than I realized.
I bought a well used, not well loved, 944 and there's more wrong than I realized.
12-22-2016, 02:01 AM
#90
Intermediate