C63 vs. Shelby-I Lost
#51
Hard to beat a supercharged car NA without a big displacement advantage.
Someone will make a TT kit for the M156, then it will be very different.![Big Grin](https://mbworld.org/forums/images/smilies/biggrin.gif)
Untill then, enjoy the reliability of NA.
These cars were made for sustained high speed cruising, which unfortunately does not exist in the US![Frown](https://mbworld.org/forums/images/smilies/frown.gif)
Another thing to note is that a supercharged car has an additional 100+HP heat load on the engine, from the 100+ extra HP consumed truning that supercharger at those RWHP levels.
That 685 RWHP engine is doing 900HP worth of work, with SC and drivetrain loss.![drive](https://mbworld.org/forums/images/smilies/driving.gif)
Someone will make a TT kit for the M156, then it will be very different.
![Big Grin](https://mbworld.org/forums/images/smilies/biggrin.gif)
Untill then, enjoy the reliability of NA.
These cars were made for sustained high speed cruising, which unfortunately does not exist in the US
![Frown](https://mbworld.org/forums/images/smilies/frown.gif)
Another thing to note is that a supercharged car has an additional 100+HP heat load on the engine, from the 100+ extra HP consumed truning that supercharger at those RWHP levels.
That 685 RWHP engine is doing 900HP worth of work, with SC and drivetrain loss.
![drive](https://mbworld.org/forums/images/smilies/driving.gif)
Centrifugal blowers are a whole other story. Stang is beautiful.
#52
Senior Member
5% Loss sounds like marketing hype.
I might have been a bit high in my 100HP estimate.
These graphs show 75HP parasitic loss at 2bar for Twin Screw.
![](http://www.sprintex.com.au.cust.webinabox.net.au/sprintex/wp-content/uploads/2010/10/sprintex_s5_335_dyno_chart.png)
So I suppose when you figure that you pay 75HP parasitic to net 300HP at the crank it's not too bad.
Seems more like 20% loss though.
I might have been a bit high in my 100HP estimate.
These graphs show 75HP parasitic loss at 2bar for Twin Screw.
![](http://www.sprintex.com.au.cust.webinabox.net.au/sprintex/wp-content/uploads/2010/10/sprintex_s5_335_dyno_chart.png)
So I suppose when you figure that you pay 75HP parasitic to net 300HP at the crank it's not too bad.
Seems more like 20% loss though.
#53
MBWorld Fanatic!
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Hey I've been gone for a few but yesterday I played a bit moding my 2012 Shelby.. 1000 miles on it. This mod thing is worse that booze hahahahaha
Hey I've been gone for a few but yesterday I played a bit moding my 2012 Shelby.. 1000 miles on it. This mod thing is worse that booze hahahahaha