motorcross exhaust on sv

[riktherider]

anyone fitted one or knows what its like??? i like the shape of them, and just wondering whether its advisable or not. is there too much restriciton in the size of the ports or should it be fine??

[Dangerous Dave]

If the inlet and outlet diameter is the same size as the SV link pipe then you should be ok.

I take it that M4 exhaust cost a bit then?

[riktherider]

havent found out the price, but seen a couple of cheap off road cans which would look good shortened. they are a smaller diameter too which i prefer than the bulkier sportsbike ones

[hovis]

the link pipe on a crosser would be smaller

[yorkie_chris]

Usually a stinkers can is quite small, you need what's called a stinger on the end of the expansion chamber to cause the resonance, that's effectively the link pipe and the diameter is tiny. Not suited to a 4 strokes gas flow at all.

Bear in mind that a 2" I/d can, can restrict flow on a tuned engine, some big twins run twin 60mm I/d pipes. Looking at the road, untuned cagiva in the garage the "linkpipe" is about 20mm wide. It may be a little strangled!

[Dangerous Dave]

2" is good for the SV650.

[yorkie_chris]

Yup the 60mm ones tend to be on thous. Anyway you'll struggle to get anything to run sweet with a silencer from a crosser.

[Dangerous Dave]

Yup the 60mm ones tend to be on thous.
Aha, work good on single silencer bike twins.

havent found out the price
Well ask then.....

[yorkie_chris]

I think tygaboy has done an off-road ish SV, it looked very sweet, the "tank" was just an airbox cover and the fuel went under the seat.

[Dangerous Dave]

the "tank" was just an airbox cover and the fuel went under the seat.
http://www.motocorse.com/pd/albums/Special/Suzuki%20SV650%20Enduro%20by%20Gaspare%20Momesso/suzuki_sv650_enduro_1.jpg