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Author Topic: empty silencer  (Read 534 times)

gillonnet

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empty silencer
« on: September 14, 2011, 01:18:44 PM »
hi, do empty silencer(just pipe) effect  UCE EFI Engine performance?

thanks ???

prof_stack

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Re: empty silencer
« Reply #1 on: September 14, 2011, 01:36:02 PM »
Yes it will.  Less low end power, more high-end (as it were) power, and a louder report that will get everyone's attention (usually not in a good way). 

Removing the cat will also put more crap into the air.

On its own, the EFI computer cannot handle the change properly.
A Royal Enfield owner's cup is always half full.

GlennF

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Re: empty silencer
« Reply #2 on: September 15, 2011, 11:39:32 AM »
... and lets not forget fuel consumption of a ferguson tractor.

Fitting 1 3/4 " Harley drag pipe torque cones in the headers will offset some of the negative effects by blocking pulses bouncing back up the open pipes - but you still have the problem of no back pressure.  Open pipes are mainly for looks and generally are used for show bikes and bobbers only.
« Last Edit: September 16, 2011, 02:43:58 AM by GlennF »

Sub

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Re: empty silencer
« Reply #3 on: September 17, 2011, 04:16:22 AM »
This is my experience too.. way too loud. This bike needs some dampening and back pressure to run well. The EFI pipe is a good choice.

BRADEY

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Re: empty silencer
« Reply #4 on: September 17, 2011, 01:33:42 PM »
They are bad for your bike...... :(