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Offline Chicane46

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sc-project exhaust problem ???
« on: October 15, 2018, 06:10:53 PM »
hello everybody i have a problem with my sc-project exhaust the oval carbon . he pull less then before what i'm doing wrong , must i put a other airfilter mayby ore is their a other problem. sorry for my english i leave in belguim   grtz

Offline Roadsprocket

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Re: sc-project exhaust problem ???
« Reply #1 on: October 17, 2018, 06:55:40 AM »
Has the bike been ran on a dyno and tuned for the new exhaust?

Offline merlin

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Re: sc-project exhaust problem ???
« Reply #2 on: October 17, 2018, 09:36:54 AM »
Just changing the can on one of these shouldn't make much difference to the engine response, SC Project's own dyno graph claims a small improvement to the engine output. Unlikely to need remapping or a Power Commander unless you're changing the headers etc.
Possibly a lambda sensor problem? We need to know more about the bike, Chicane....
« Last Edit: October 17, 2018, 09:39:16 AM by merlin »

Offline Troppo

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Re: sc-project exhaust problem ???
« Reply #3 on: October 26, 2018, 05:35:05 AM »
Mine works perfectly.  Are you sure that it is on tightly?

Offline JTL

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Re: sc-project exhaust problem ???
« Reply #4 on: October 29, 2018, 09:08:46 PM »
 I read that the XR has learning ECU, so it might take a few miles to "learn" the new exhaust??

Offline smithy

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Re: sc-project exhaust problem ???
« Reply #5 on: October 30, 2018, 07:25:40 AM »
*Originally Posted by JTL [+]
I read that the XR has learning ECU, so it might take a few miles to "learn" the new exhaust??

15 &16 (Euro-3) are partly learning ECU, 17 & 18 (Euro-4) less so. If headers are fitted to a Euro-4 it is recommended to have a separate fuel module like the Rapid Bike EVO or PC-5 fitted or an ECU remap.
They will still run but not to their best without a fuel module or remap.

Smithy. 
When I die, I want to go peacefully in my sleep like my Grandfather....not screaming like the passengers in his car..!

Offline bazzer

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Re: sc-project exhaust problem ???
« Reply #6 on: October 30, 2018, 07:47:31 AM »
and none of them "Learn" at wide open throttle.

Its only a little bit of fuel trim and if the ECU was programmed to be lean as certain rpm/throttle openings for emissions/noise, its still going to be the same. Getting it mapped is the way to improve the drivability etc.

Offline Troppo

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Re: sc-project exhaust problem ???
« Reply #7 on: October 30, 2018, 07:50:34 AM »
You only need to remap if you remove the cat and/or change the headers.

To the OP - there must be something wrong with either the installation or the can, as they work perfectly out of the box.


Offline bazzer

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Re: sc-project exhaust problem ???
« Reply #8 on: October 30, 2018, 07:54:23 AM »
That is true Troppo, the end can should not change the breathing of the engine much at all. So in fact it should run OK without any "learning"

I thought I was on the Delkevic thread when I posted :-)


Offline merlin

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Re: sc-project exhaust problem ???
« Reply #9 on: October 30, 2018, 09:36:00 AM »
As suggested, the OP needs to tell us more about the bike, eg anything else that's different.

 


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