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Author Topic: Bren Tuning in the UK  (Read 3221 times)

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Offline Belco100

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Bren Tuning in the UK
on: February 04, 2021, 11:34:21 AM
A question for any UK guys that have done the Bren Tuning mod.

How did you get on with Customs? What were the total costs to get the handheld in?

#1

Offline PaulS1000XR

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Re: Bren Tuning in the UK
Reply #1 on: February 04, 2021, 03:23:53 PM
Bren Tuning looks good but far too expensive
PSH

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Offline Belco100

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Re: Bren Tuning in the UK
Reply #2 on: February 05, 2021, 02:49:29 PM
*Originally Posted by PaulS1000XR [+]
Bren Tuning looks good but far too expensive

Not too bad at the moment, about £490 with the handheld. But if its the same again for Customs charges then that's a different story.

Any UK users?

#3

Online Winger

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Re: Bren Tuning in the UK
Reply #3 on: February 05, 2021, 04:19:55 PM
Having fitted secondhand PC’s on both X/R and KTM both of which had been set up on a dyno previously, both when fitted and run up on another dyno needed fine tuning, so 500 quid for a guess at best seems well salty to me.,

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Offline caister

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Re: Bren Tuning in the UK
Reply #4 on: February 05, 2021, 09:27:18 PM
*Originally Posted by Belco100 [+]
Not too bad at the moment, about £490 with the handheld. But if its the same again for Customs charges then that's a different story.

Any UK users?

Import charge was £52, not actually used mine yet still running the bike in.

#5

Offline Stav

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Re: Bren Tuning in the UK
Reply #5 on: February 05, 2021, 09:56:31 PM
Got my device and tune from them during Black Friday period, import charge was around £60 if I remember correctly, paid directly to UPS online before delivery. Well worth doing on my Gen 2.

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Offline Belco100

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Re: Bren Tuning in the UK
Reply #6 on: February 07, 2021, 09:00:57 PM
*Originally Posted by Winger [+]
Having fitted secondhand PC’s on both X/R and KTM both of which had been set up on a dyno previously, both when fitted and run up on another dyno needed fine tuning, so 500 quid for a guess at best seems well salty to me.,

Yes - I have seen your Dyno result, one of the flattest AFRs I have seen. But Bren do a lot or research and Dyno testing so they hardly guess. The reason they can post out is they let the O2 sensors fine tune back to the preset map they put in. I first heard of them when looking for someone who could do my K16GT as there are isn’t a PC5 for six cylinder engines, but it’s always the import that kills it in the UK, so probably won’t. Trouble is with Euro4 you need to get into the ECU to fix the other issues such as the soft throttle map and the throttle restrictions.

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Online Winger

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Re: Bren Tuning in the UK
Reply #7 on: February 07, 2021, 09:31:29 PM
Trying to fine tune a motor with the 02 sensors still connected is a contradiction in terms, your looking for a constant, leave the 02’s chasing their own tail trying achieve the impossible, just means the fuelling system just spends its time disappearing up its own backside, hence why the first step is taking the O2’s out, although in fairness a PC5 just deletes them from the fuelling system, I just like to clean the look of the headers up by taking them out and put blanking plugs in.

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Offline Stav

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Re: Bren Tuning in the UK
Reply #8 on: February 07, 2021, 09:34:52 PM
*Originally Posted by Winger [+]
Trying to fine tune a motor with the 02 sensors still connected is a contradiction in terms, your looking for a constant, leave the 02’s chasing their own tail trying achieve the impossible, just means the fuelling system just spends its time disappearing up its own backside, hence why the first step is taking the O2’s out, although in fairness a PC5 just deletes them from the fuelling system, I just like to clean the look of the headers up by taking them out and put blanking plugs in.

These are wideband O2 sensors, working in closed loop. This video explains it pretty well:

#9

Offline Belco100

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Re: Bren Tuning in the UK
Reply #9 on: February 07, 2021, 10:01:57 PM
*Originally Posted by Stav [+]
These are wideband O2 sensors, working in closed loop. This video explains it pretty well...

Yes, my R1250GSA had widebands on it which react and feedback almost instantly. The map was set to 13:1 and it and it just tuned straight to it - was 14.9 low down before. Are the Gen 2s wideband? Unfortunately my Gen 1s is narrow band. I had my K16GT with narrow bands done this way and they only worked down to 13.8:1 and need to feed through to short term and long term trims for it to get there, but made a massive difference on the old beast.

 



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