951S chassis vs 951 chassis (now with EXTRA vs 968 goodness!!!)
#16
Burning Brakes
Thread Starter
hmm, well yes, mine is RHD, and the battery is in the 'trunk' (we call it the 'boot' ), on the LHS.
and yeah, those plates, i always thought it was an odd place for them to reinforce, but i was wondering if the wiser heads on the rennlist might know (or theorise as to) why porsche chose to put them there - as M758 pointed out, it was a pretty deliberate change as they had to modify the design of certain parts etc.
and yeah, those plates, i always thought it was an odd place for them to reinforce, but i was wondering if the wiser heads on the rennlist might know (or theorise as to) why porsche chose to put them there - as M758 pointed out, it was a pretty deliberate change as they had to modify the design of certain parts etc.
#17
My speculation is that the reinforcement plates were installed to reinforce the frame rails as the factory's response to the high forces exerted by the bigger sway bars used on the Turbo S and 1989 Turbo. When you look at the underside of the car, you will notice that the front sway bar bolts to the frame rails directly under where these reinforcement plates are.
Jeff
Jeff
#19
Burning Brakes
Thread Starter
wow, that is the most plausible explanation i have ever heard . so has anyone ever noticed a difference between a non-S with the upgraded swaybar and an S?
#23
Burning Brakes
Thread Starter
okies will do, when my car gets back from having the door reattached to the hinge. and the wiring loom in the door replaced. and the control arms rebuilt...etc ad infinitum .
prolly after tuesday sometime
prolly after tuesday sometime
#24
Burning Brakes
Thread Starter
as a small and probably wholly uninteresting update...i was checking out a 968CS today, and it also has the reinforcement plates.
they look like a bit of an after-thought in some ways, the welding is a lot more shoddy than on the rest of the car.
is there much difference, chassis-wise, between the 968 and the 951? i mean, if you took 968 shocks, springs and swaybars (and other necessary bits) and put them on a 951, would there be any appreciable difference between the two?
they look like a bit of an after-thought in some ways, the welding is a lot more shoddy than on the rest of the car.
is there much difference, chassis-wise, between the 968 and the 951? i mean, if you took 968 shocks, springs and swaybars (and other necessary bits) and put them on a 951, would there be any appreciable difference between the two?
#25
Addict
Rennlist Member
Rennlist Member
This is a picture of my chassis' right hand brace. I think this triangulates the sway bar loads into the strut towers.
Beyond this, there are some braces between the rear longitudinals and the jump seats that strengthen the rear top shock mounts. Otherwise, I think the chassis are the same.
<img src="http://boards.rennlist.com/upload/brace.jpg" alt=" - " />
Beyond this, there are some braces between the rear longitudinals and the jump seats that strengthen the rear top shock mounts. Otherwise, I think the chassis are the same.
<img src="http://boards.rennlist.com/upload/brace.jpg" alt=" - " />
#27
Three Wheelin'
That brace looks like it would triangulate the strut tower/frame connection against the sway bar torsion and fore-aft movement of the tower. Combine that with a strut tower brace to reduce sideways movement and you should significantly stiffent the front end. Did the Cup cars come with a strut tower brace of any kind?
Great photo BTW!
Great photo BTW!