Collectors: fabricated versus pressed

  • Thread starter Thread starter Terry Dymond
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Terry Dymond

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G' day,
I see there is a lot of discussion concerning what collector suites which bike. It just happens I have both; the fabricated, large bore one fitted on the bike and the narrower, pressed one sitting on the shelf.
Which one would suite my bike; an RGS with free flowing 'Staintune' mufflers, drilled airbox and a 'Unifilter' air filter fitted, without the thick oil, washed in premix. Carburation is standard.

Terry
 
Try both on a dyno and report back.
Data at the time suggested the pressed one suited the 120 better than the fabricated one.
5 BHP difference was mentioned.
 
Laverdalothar said:
I binned both for a 3-2-1 Exhaust made by SR-Racing. 10 HP gain against the Factory one and no drop in torque/power anymore...  ;)
Click to expand...
ay Lothar,  and just where have ya got the photos hiding of the SR-Racing system ??

Mark
 
I think I described the system several times, but happy to do again... :-)

3 downpipes with 35 mm inner diameter (37 outer I think). 2 (right and center I think) are joined together under the engine with a Y-piece, then the 3rd one (left?) is joined together with the first Y-piece by another Y-piece. this goes into a tapered tube which goes into one exhaust can. Price at that time was 950? I think including T?V (MOT), handmade and with several dyno runs to find the ideal setup. If you count together what Keihan or others ask for a standard system that will cause you a drop of roughly 10 HP and equivalent torque and which will deliver less top-end power, this is more than a fair deal... see:

113025 Sammler Laverda 120_ Motor _ Collector box 120_ engine 229.00         229.00
114003 Edelstahlschelle 35mm _ stainless steel clamp 35mm         12.50                 62.50
111115 2 Endschalld?mpfer Laverda Jota _ 2 Silencers Laverda Jota M 449.00 449.00
112020 Kr?mmersatz Laverda 120_ Motor _ Exhaust pipes 120_ engine 349.00 349.00
Total EUR 1089.50


Feel free to contact SR-Racing for getting an offer from them...  ;)
 
No no - just ask! I am just so impressed by what Sepp does in his little workshop, it is just great! No wonder, BMW choose him for the F800 exhaust design...  ;)
 
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