bfellows

http://cgi.ebay.co.uk/Porsche-928-Al...QQcmdZViewItem

Jim bailey - 928 International

IF the 928 HAD STRUTS ...

Alan

The way its written it sounds as if this bolts to something else (but the visuals say otherwise...)

Looks OK - its probably heavier but stronger than stock.

Alan

bfellows

OK, cross brace Clean engine bay though

hacker-pschorr

Stainless steel??? Holy cow, much does it weigh?

SharkSkin

Hmmm.. seems it does tie in with the tops of the coilover mounts. Couldn't hurt, but I wonder if it really helps.

Jim bailey - 928 International

The loads on the coil over shocks is basically up and down far, far different than say a 911 with Mc Phearson struts where cornering loads ARE transmitted to the top of the "shocks". Strut suspension is a cheap space saving COMPROMISE and not a very good design for handling sure they can be made to work OK but NEVER as well as double A -Arm suspension. Maybe why F-1 cars are double A-arm ? Camber change on the strut during compressing is what gets weird.

RyanPerrella

buy Carls, its less and probably looks better as well

Ispeed

That's a rhd car. Look at the location of the coolant reservoir. Bloody rhd fools...

SharkSkin

Jim, that makes sense, but IMHO much of the force is applied to the bulkhead where the upper A-arm attaches. I would assume that the entire bulkhead flexes some under these forces, and tying things together at an additional point may alter the total amount of flex.

But, as you imply, the difference may be so small as to be very hard to measure(assuming you could come up with a good way to measure the flex) and even harder(maybe impossible) to quantify from behind the wheel.

This may be yet another of those technical solutions that has yet to find a real problem to solve, but it's interesting to speculate about.

bfellows

I know, steering wheel on the wrong side.......funnily enough the split for RHD v LHD throughout the world is roughly 50/50, something to do with the days of the good ole british empire. I digress though, interesting comments as to the effectiveness of the bracing. Didn't one of the racers have a similar set up fitted? As for the weight penalty - in a car that weighs in at well over 3000kg i'm guessing just junking the spare tyre and replacing with a can of tyre foam would more than compensate for any additional weight.

Jim bailey - 928 International

There is some flex and on a race car with sticky tires heavy springs it becomes a factor as the chassis acts like a spring but one without shock absorbers makes suspension tuning more difficult.

Fabio421

3000kg? No way. I thought our cars weighes in at around 3400lbs. At 3000KG's our cars would be fat and lazy.

SharkSkin

Jim bailey - 928 International

The old very brown 1980 is about 3100 lbs ...no sunroof , no power seats ,no spare, no A/C . 15 inch wheels tires ...