Let’s mess with a 650 Interceptor

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It’s time to start to try and improve the 650 and the easiest way to start is by binning the stock air filter and fitting a DNA one plus swap the standard cover for one that lets air at least get to the filter.

Before
IMG_2634.jpeg

What’s going in
IMG_2635.jpeg
And what it looks like after less than 5 minutes work
IMG_2636.jpeg

More work to follow shortly :thumb2
 
So now you’ve improved the airflow , won’t it run too lean ?


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So now you’ve improved the airflow , won’t it run too lean ?


Sent from my Nokia 3310 using Thetwatcantalk
The ECU can adjust the fuel to suit. Apparently the only thing you shouldn’t do is try and fool the ECU by inserting a booster plug into the wiring because the horrible bastards have made the ECU tamper proof.
 
I probably should have mentioned that there’s a full exhaust system waiting to be fitted over the weekend. No more double walled headers that also conceal a cat and no more heavy silencers that choke the bike to death.
 
I'm watching this thread with great interest. I was considering doing these mods this coming winter, along with a tubeless conversion for the spoked wheels.
 
Are going to fit the big bore kit aswell
 
The ECU can adjust the fuel to suit. Apparently the only thing you shouldn’t do is try and fool the ECU by inserting a booster plug into the wiring because the horrible bastards have made the ECU tamper proof.
Many folk use these Andy when running free flow stuff eg de cat , DNA air filter etc. They autotune using a feed from the O2 sensor and injecting lean signals if appropriate. I run one on my Duke 390 since its set up for BS5 ( Indian spec) its a tad jerky on light throttle upto 4000 rpm. The fuel X lite smooths all that out.

 
The ECU can adjust the fuel to suit. Apparently the only thing you shouldn’t do is try and fool the ECU by inserting a booster plug into the wiring because the horrible bastards have made the ECU tamper proof.

As ever, yes and no. Unless Enfields are fitted with Wideband Lambda sensors which I doubt, any adjustment is only possible while the sensors are in operation, during closed loop mode, i.e. not at W.O.T. and high revs. Even then that's only possible within the parameters of the fuel map + trims.

To be safe and get the most from any mods you make a remap is necessary.
 
I have one of these sitting amongst the box of bling I purchased as a job lot and made a phone call to ask if I could fit it only to be told but to bother, it won’t work properly and may cause a fault code to appear.


The guy selling them said the Fuel X Lite won’t cause the same fault code problem but neither will it actually fool the ECU into throwing significant amounts of extra fuel into the engine at bang time. Note the word significant there because he also said that if I buy the Fuel X Pro then I can get a lot more fuel in and take full advantage of the extra air flow and big bore pipes.

Going back to me earlier post, the ECU has been described as being pretty much tamper proof but it can be fooled by a good old fashioned Power Commander. Now as it happens I have a Power Commander so enquiries have been sent out asking if it can be mapped and have the appropriate plugs fitted.
 
I’d looked at the Powertronic unit and will probably have to do some more investigation.

The bhp flash is probably a better option but the problem there is I don’t own a Windows laptop and I’ll be murdered if I start doing that kind of thing with the company one.

I’m a bit wary of some of these products because they’re only working on the closed loop circuit which is a bit limited when what I really want is my money to have an impact on the fuelling when I open it up. The Fuel X Pro does get good reviews and you can play with it on the go but I installled a plug and play unit in a VW that allowed me to change the map and the most significant change was that it spoofed the ECU into telling me my fuel consumption had improved but when checked properly it hadn’t.
 
I have one of these sitting amongst the box of bling I purchased as a job lot and made a phone call to ask if I could fit it only to be told but to bother, it won’t work properly and may cause a fault code to appear.


The guy selling them said the Fuel X Lite won’t cause the same fault code problem but neither will it actually fool the ECU into throwing significant amounts of extra fuel into the engine at bang time. Note the word significant there because he also said that if I buy the Fuel X Pro then I can get a lot more fuel in and take full advantage of the extra air flow and big bore pipes.

Going back to me earlier post, the ECU has been described as being pretty much tamper proof but it can be fooled by a good old fashioned Power Commander. Now as it happens I have a Power Commander so enquiries have been sent out asking if it can be mapped and have the appropriate plugs fitted.
Fuel X Pros have 10 settings with 3 being std 1&2 lean and 4 to 10 richer. The lads on the ktm forums either “ guess” and go with 5/6 or use dyno’s . A few pull the lamda sensor to look how sooty it is ( easier to pull than a spark plug on a 390) .

The Fuel X lite autotunes so if you continue to make changes to the suck or blow pipework it adapts Usually over 20 miles or so.
 
Andy I think BS6 caused all the Indian manufacturers to ensure the ECU did not respond to continuous “ low ambient” temperature signals as provided by the booster plug. They either ignore them or through up an engine light. The way the Powertronics works is it sits between the lamda sensor and the ecu. It is designed to read the real oxygen level in the exhaust then throw random lean signals to the ecu. Say 6 a minute . On the pro as you go up from 4 to 10 it increases the number of lean injections proportionally with the steps you programme.

Since its random you dont get a check engine light.
 
So what have I accomplished today?

Well I’ve fitted a rack so I can put a bag on the back if I feel so inclined and that’ll come in handy but the more important changes are that I’ve replaced the stock rear suspension so I can now adjust the damping as well as the preload and the piggy back reservoir might actually do something because it’s got a valve that will allow me to put a bit of pressure in there and help the return oil flow. A lot of reviews suggested they were difficult to fit but I didn’t find that to be the case.

I‘ve also fitted a tec full exhaust system which removed the cats from both the down tubes and the silencers. That allegedly removes 14kg of weight because the original down tubes not only have cats fitted but they’re double skinned :blast

Easy enough to fit and they look nice but I think I need to start wearing earplugs again and avoid Germany. The manufacturers claim they’re 86db but I’m far from convinced and as for removing the baffles, no fucking way am I doing that. They do sound nice though and I’ll find out later whether the bike has a bit more go within the constraints of running it in.

IMG_2637.jpeg
 
A quick test ride to the pub shows that it sounds nice but without actually being ear bleeding level of loudness (I didn’t bother with ear plugs) and probably won’t cause too much offence.

Has it improved the performance? Well it seems to rev quicker but that might have been me playing rather than the bike being better.

The front suspension feels even more shit than before because the rear no longer draws attention away from it.

I’m happy enough and nobody else really matters.
 
I’ve just been given a second opinion on the noise level by my brother in law and his words were “it’s a bit loud”.
 
I installled a plug and play unit in a VW that allowed me to change the map and the most significant change was that it spoofed the ECU into telling me my fuel consumption had improved but when checked properly it hadn’t.

Likewise with the Viezu Tuning Box that I fitted to a couple of madam's VW Tiguans. Although it did perk her 140 TDI one up a bit and it turned her subsequent 170 TDI into a bit of a flying machine.
 


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