Garf172 said:
looks nice from the rear shot. is it only 182 exhausts your doing??
We'll just be doing 182 for now, as the development costs are quite high, a 172 BTB mat be along later, it all depends on the feeedback we get on this system.
MarkM said:
copied from the other thread
fmp. A few Qs on the exhaust.
Mat (FMP) isn't about and has done most of the dealings with btb. I'll do my best to answer your questions as much as possible. Some details I can't give right now, we won't know all of them until we pick the car up as btb have done all the design and development, none of it has been done by Shed Motorsport.
Why two back boxes not one like an Orbisoud?
Without asking Joe at BTB directly I would say that he has chosen this set up using information gathered from the very expensive simulation program he uses, Ricardo Wave. This program models things like exhaust pulses once all the details of the engine, inlet and exhuast system have been entered. The two boxes may also be as a result of our request to make the system sub 98db so its suitable for track days. With the orbisoud being a race exhaust it wouldn't need to be so restircted in terms of noise and can get away with just a single rear box.
What bore is the pipe?
I "think" the bore is 50mm, although 54mm seems to ring a bell. More news on this later.
Are the silencers chambered?
Simple answer, i don't know, but i would think that they are to meet noise restrictions. Again, more on this later
What options will you offer ie louder and a sports cat?
As quoted before the limit we have set is 98db, I doubt anyone would actually want anything louder than this.
BTB have there own 100 cell FIA procat. The decat section will be removable, so I think think that a sports cat would be possible. Don't quote me on this but I think the guys at BTB have designed it to function properly if a cat is installed.
Are you doing before and after RR?
A before figure was obtained at regals rolling road in Southampton, the car will be going back on the same rollers once we have it back.
Does it have a removeable decat section?
See above
Price seems high for that money I would want a sports cat aswell.
The price may seem "high", but you get what you pay for, hopefully this will be reflected in the gains we get. Mat has all the pricing details so i don't know what he has based that price on, but the prices drop considerably once we start ordering in quantities, i'll ask Mat about it asap, so watch this space.
Many thanks for your interest.
Joe
Shed Motorsport
, as you rightly stated, people are too accustomed with mass produced rubbish. On another thread, someone seemd concerned about the quality of the welds, for those in doubt, here are some pics of the Fiesta ST system that BTB produced.
