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BMW S1000XR
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sc-project exhaust problem ???
23 Apr 21, 10:21 AM
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Topic: sc-project exhaust problem ??? (Read 2815 times)
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Chicane46
XR Junior
Topic Author
Posts: 10
Bike: s1000xr 2021
Town: brussel
Country:
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
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#1
Roadsprocket
XR Junior
Posts: 12
Bike: Triumph
Town: Essex
Country:
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?
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#2
merlin
XR Pro
Posts: 386
Bike: S1000XR Sport SE
Town: Ilminster
Country:
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
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#3
Troppo
XR Pro
Posts: 323
Bike: XR
Country:
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?
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#4
JTL
XR Pro
Posts: 298
Bike: S1000XR Sport SE
Town: England
Country:
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??
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#5
smithy
XR God
Posts: 1699
Bike: 2017 S1000XR
Town: Brisvegas.
Country:
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.
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When I die, I want to go peacefully in my sleep like my Grandfather....not screaming like the passengers in his car..!
#6
bazzer
XR Master
Posts: 978
Town: Waterlooville
Country:
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.
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#7
Troppo
XR Pro
Posts: 323
Bike: XR
Country:
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.
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#8
bazzer
XR Master
Posts: 978
Town: Waterlooville
Country:
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 :-)
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#9
merlin
XR Pro
Posts: 386
Bike: S1000XR Sport SE
Town: Ilminster
Country:
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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