That's the information they need to calculate the maximum driveshaft RPM - regardless of what gear yields the (any) car's maximum top speed. A car with a crazy amount of HP might hit its top speed in 6th gear.
Can you comment on clearances such as the minimum at any point at full suspension compression? Is that shaft 3.5" or 4" in diameter?
No engineer is infallible, but most folks from the outside looking don't ever get the full picture of what's going on. Cost and function are obviously 2 key design requirements, but far from the only ones.
That's a pretty silly statement. Final product definitions are very rarely dictated solely by the engineering design team. The higher the sale price, the more stake holders and the longer the design review process is. Very rarely will an engineer willingly sign off on an inferior design for the sole reason to save money, typically those types of consolations don't come until later on when the over-all project is too costly and the risk is taken to eliminate features in order to maximize gross margin (at least in my experience)
First, I have to thank Frank at Dss(driveshaft shop) for being super friendly, and helpful.
For the past couple days I've been working with DSS, and taking all the necessary measurements needed to build the first one of these for the Gt350.
They are going to begin building it tomorrow. I should have it in about a week. Once I receive it and verify that it fits, and is within spec, these should be immediately available to the public.
I will report back with pics and weight savings as soon as I get it.
Update:
Received, and installed the driveshaft today!
Once again I really want to thank Frank at DSS for being super helpful, and getting this thing built, and shipped out to me lightning fast.
First, here is a picture comparing the new DSS GT350 shaft (top), with the DSS '15-'16 GT shaft (middle), and the stock GT350 shaft (bottom).
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Before installing the new shaft I weighed all three shafts.
The OEM GT350 shaft weighed in at 27lbs
DSS CF shaft for '15 Gt 18lbs
DSS GT350 CF shaft 19lbs
That equals an 8lb reduction in rotating mass. So.. Is that going to equate to an increase in power put down to the ground? Probably not much if any, but I think of the weight loss as icing on top of the many advantages of a carbon fiber driveshaft.
Here are a couple pics during the install.
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After installing it, and making sure everything was in spec, I took it out for a test ride. Right away I noticed a newfound smoothness that's honestly hard to put my finger on. It almost seemed quieter if that makes sense. Also it doesn't seem to shock the tires quite as bad on firm 1-2 shifts, and overall clutch engagement just seems smoother.
In total I put about 60 miles of street driving on it today and so far, so good. No additional vibrations or noise whatsoever. I have a track weekend booked for April 9th, and 10th where we will find out for sure if it will put up with some real Voodoo punishment. But as of know I couldn't be happier with the product or the customer service from The Driveshaft Shop...
Like i had said some of the info was generic, but making it clearer for the S550 GT350 it would be as follows (i think i read its a 3:73 rear)
