Fitted a PC5 and Autotune.

[bullet]

Well I have been looking for something to fit to my 1400 to sort the fuelling, now for many years there was only the PClll available and the bike needed to be dyno tuned to correct the fuelling but this was not enough for me, I searched for a aftermarket stand alone ECU but its very expensive, they come empty as no data/maps on them and I am a bit suspect of other people riding the s@&t out of my bike........only I am allowed to do it..........
So with the help and instigation of a guy in halfway across the world he has figured out the late model Bandit uses the same fuel injectors as the GSX.......and as they say the rest is history.
Now I have a Powercomander PC5 and Autotune fitted. A very quick rundown what this means to the less technical members.
The PC5 is a piggy back computer that takes the fuelling signal that has just left the ECU and on their way to the injectors and changes it and then sends it to the injectors, the nice thing about the PC5 over the PClll is it can compensate for altitude and the Autotune is just what the name says, it's a accessory that plugs into the PC5 and it comprises of a O2 sensor so while I ride the bike is tuning itself to be as optimum as it should be and I can change the target air/fuel ratio in different areas for example, I can as I have done for me set the air/fuel target of 13,7-14,2/1 through out the whole rpm range and once I have ridden enough that I have covered the complete rpm range then I will change the 2500-3500rpm range a bit leaner as this is cruising rpm on the open road to be more fuel efficient.
Here are a few photos showing the installation proses from my point of view.
As some of you would have picked up I cheated with the location of the new accessories due to I have a Li-Iron battery fitted to my bike.

 

[Rocky]

Well done

 

[CarlS]

Great work and really good photo documentation.

 

[DaveM]

This sounds like a great mod to get the best out of the bike. Keep us updated on how it is working out

 

[bullet]

Some more modifications...........well upgrade for me.
Now the guy whom designed this pice of kit is a electronics genius and he was very helpful in making the kit a DIY kit for me as he is based in the UK and I am in OZ.
The upgrade consists of the following........
1. Changing the clock faces from black to white.
2. Changing the back lighting from the boring orange to blue......Blue/White GSX1400
3. Fitting a gear position indicator and incorporating it into the RPM counter using the 1,2,3,4,5,6000 rpm markers as the 1,2,3,4,5,6 gear positions.
This is the before and after photos, now unfortunately because of the blue back lighting and digital cameras it will seem that some of the digits appear to be difficult to see/read, in real life its fantastic even in day light it look awesome.

I still have to fit the gear position indicator wire in the main loom and do a small setup phase, that will happen tomorrow and I will put up a small video clip.

Before......

. After.....

If you look carefully you will see that the gear position indicator is "floating" on 3000rpm and that is what it looks like when you are in a specific gear. I think the designer was amazing inventing this.......now there is no ugly hang on bulky out of place gear position indicator on the side of the instrument cluster.
Doing this DIY is not for the faint hearted.

 

[CarlS]

Excellent work. That really looks good. I am astounded at the gear position indicator. That guy must be an electronic genius.

 

[bullet]

The thing is the 14 has a gear position switch fitted standard for the ECU to know what is going on, so he took his genius brain and incorporated his invention and wholaaa a beautiful pice of kit.

 

[CarlS]

He did very, very well. I am impressed.

 

[bullet]

Just a test.


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[bullet]

I am having all sorts of issues to post, but seems it's ok now.
So just a update, it has taken me this long to find the happy all round "area" for the bike to perform well. Took me so long due to being old school and carby's are my forte, but times are changing so I have adapt.........FIFO
I have five basic maps that I designed and made small adjustments to and map no five seems to have done the trick.
Before,
average fuel commuting was 14km/litre
average fuel open road was 17,5km/litre

After,
average fuel commuting is 17,5km/litre
average fuel open road is 19,5km/litre
Overall I am happy......now to find that perfect balance between good power and good performance.
Cheers.


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[CarlS]

Congrats on finding the optimum.

 

[NORTY]

Imagine if you could create a "custom map" for each individual cylinder. All it would take is 4 O2 sensors located on the primary pipes. Probably adapt the "box" to acquire, modify & send 4 separate signals. Each cylinder could then be optimized for maximum performance.

 

[bullet]

I would love that, there is actually one 1400 that does have the capability to do this. It's a Russian owner and his mate opened the original ECU, decoded it and build a new ECU that can accept 4 O2 sensors and do the timing of the individual cylinders, now that is amazing and was done in three months. Unfortunately he won't build another. The results were very good after a custom map.

I am now exploring another avenue, it's a US company Woolish Racing, I still need to buy a "log box and autotune so I can still run my O2 sensor, but the nice thing is I have access into my original ECU and don't run a "piggy back" system anymore AND I have access to trimming.


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[MYT100]

That looks sick. I loved my GSX, its one of those don't know what you had till its gone. Great work!

 

[dazco]

Pretty much all the thunderbird guys who have a PC5 and auto tune are really happy with it. I considered one for a long time but i have a custom tune that a guy with my same setup gave me that runs so strong i just decided to leave it as is. You can take a PC tune from someone who has a PC5 and convert it to hex format to use with tuneecu. So if anyone with your bike/setup wants your tune and knows how to convert it you can gibe it to him. With autotune it tunes constantly tho so his map would be static.

On a side note, I actually found that if i i start my bike and hold the throttle at 1500 RPM's for a minute or so instead of starting up and letting it warm w/o ever touching the throttle, my bike runs stronger and never has one of those off days anymore. It seems to always run identical every ride. I started doing that after hearing from some other owners with oil pressure gauges that this bike's oil pressure at idle is scary low. I figured it would be best to get the pressure up when cold. It not only made the aforementioned improvements, which i believe may be due to the bike no longer acclimating during warm up, (which i think optimises emissions, not performance) but i had this knock that would happen about every 3-5 rides, and in the 4-6 months i've been doing this it's ever happened since !

- - - Updated - - -

Pretty much all the thunderbird guys who have a PC5 and auto tune are really happy with it. I considered one for a long time but i have a custom tune that a guy with my same setup gave me that runs so strong i just decided to leave it as is. You can take a PC tune from someone who has a PC5 and convert it to hex format to use with tuneecu. So if anyone with your bike/setup wants your tune and knows how to convert it you can gibe it to him. With autotune it tunes constantly tho so his map would be static.

On a side note, I actually found that if i i start my bike and hold the throttle at 1500 RPM's for a minute or so instead of starting up and letting it warm w/o ever touching the throttle, my bike runs stronger and never has one of those off days anymore. It seems to always run identical every ride. I started doing that after hearing from some other owners with oil pressure gauges that this bike's oil pressure at idle is scary low. I figured it would be best to get the pressure up when cold. It not only made the aforementioned improvements, which i believe may be due to the bike no longer acclimating during warm up, (which i think optimises emissions, not performance) but i had this knock that would happen about every 3-5 rides, and in the 4-6 months i've been doing this it's ever happened since !

 

[bullet]

Well I have a update, and even if I have to say so myself, I am impressed with the results coming in now.
Thursday I have fuelled up as this was my first real test to see what is happening and gave the last AFR map and Autotune enough time to do the adjustments and me to accept them so the PC5 can do its job, and here it is...........
If you forgot this is a GSX1400 Suzuki so not the intended super economical way to get around like on a 125 scooter but to me it's what I want......
Thursday. 365,9km 21,20litres of fuel
This is pure town riding, hot, cold, wet, dry, good flow of traffic, bad flow of traffic, road works and short distances, 11,6km to work one way. In between it's the shops, post and so forth.
Calculating those figures I was happy......
So today I fill her up again, now bear in mind it's from the above refuel.
378,9km. 21,86litres of fuel
Now doing the calculations on this figures that impressed me because this was my weekend out and about...........
So it's Friday to work and I had to do the long way back as I had some business exactly on the opposite of town, then Saturday out to the race track to drool a bit(check my tread out and about)
The ride is on beautiful back roads, no fuzzys and the ride was very spirited, I mean very, and one of the sections is about 8-10km long and can see the whole pice of road, so I was naughty and wanted to see how capable the 1400 was and see what she can get up to in top gear.
So yes that figure surprised me.
I am truly happy.

 

[CarlS]

 

[NORTY]

Your PC5 should be adaptable for different fuel blends....on the fly.

 

[bullet]

I only run 98 Premium BP Ultimate. Dont need another gaget on the handle bar.
Been on a nice long ride recently and constantly hitting the 400km per tank not in reserve yet.