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GuzziTech Power Commander V Information

GTM®

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GT di Razza Pura
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Hi all, I'd like to sort the fueling with the PC-V/AT/ECU Re-Flash Tool package on my bike (Breva 1100). I've read through this thread, but I can't find where this has been discussed:
If I get rid of the catalytic converter in favour of a GT-Rx crossover/y-pipe, is there any advantage to going to the double O2 sensor version? And then the AT300 instead of the 200? I feel like having a sensor for each cylinder is better? Surely no matter how well synchronized, the two cylinders won't be running *exactly* the same...
Thanks in advance!
Tobin.
Hi Tobin, very significant gains and cooler running by going to the GT Y-pipe and PC-V/AT. The 300 dual band allows a dynamic map for each cylinder, which means even better smoothness and throttle response. You'll have to choose if the cost difference is worth it to you, as you'll have to add two additional 02-sensor bungs in the headers up near the oil cooler. I can supply them if you'd like. Write me direct email for more info; Todd at GuzziTech.com
 

GTM®

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Lot's of work to go through for no gain, it's still just a twin plug motorcycle engine, and will vibrate some no matter how many computers and such it has. I would think for this to all work you would need an ECU that is set for 2 O2 sensors, like a Norge 8V ECU. Otherwise there would be no part on the map to change.
Hey Steve, thanks for the input. A PC-V & dual sensor AT-300 is plug and play regardless if the bike has them stock or not. it is an impressively good set up. Dyno gains can be seen here on the 1200-2V motor; https://www.guzzitech.com/forums/threads/gt-rx-modded-1200-sport-2v-dyno-run.5830/
 

tobinh

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Oct 15, 2016
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181
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Burnaby, BC
Hi Tobin, very significant gains and cooler running by going to the GT Y-pipe and PC-V/AT. The 300 dual band allows a dynamic map for each cylinder, which means even better smoothness and throttle response. You'll have to choose if the cost difference is worth it to you, as you'll have to add two additional 02-sensor bungs in the headers up near the oil cooler. I can supply them if you'd like. Write me direct email for more info; Todd at GuzziTech.com
ah i was hoping i could get the benefits just by getting the Y-Pipe with two bungs. thanks so much for the response! i'll crunch some numbers and be in touch :)

Tobin.
 

GTM®

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ah i was hoping i could get the benefits just by getting the Y-Pipe with two bungs. thanks so much for the response! i'll crunch some numbers and be in touch :)
That would be an option, sure.
 

stinga

Tuned and Synch'ed
Joined
Apr 18, 2011
Messages
44
Location
Karridale Western Australia
G'day All,

Just got a couple of question regarding setting up Todd's full kit, I've had it for a little while but now that the Harley is out of commission the Guzzi has become the pack horse and I'm spending a lot more time on her. And I must say she is far more practical when it comes to camping trips what with the panniers, Venture Gear sack on the back and better accommodation for the minister of finance on the back.
I,ve got a 2010 1200 8V Sport and the other day after a 30k trip I pull the seat off to check out if all's OK with my PCV and Auto tune while starting the motor.
By the way I have had problems within the 3000 to 2000 rpm range being very snatchy and behaving like a stock Guzzi and all the normal s:&*t associated with the poor fueling of injected Guzzi's.
After the start up I notice that the power lights was illuminated but the status light was not showing any colour/light on the PCV and the Auto tune went through it's normal process and the bike idled real well.

Todd has resent me the map that comes with he set up but before I try a total reinstall I just want to know a couple of basic things.
  • With the status light should it be on the PC and what colour should it be, mine is not illuminated ?
  • Is it worth doing a throttle rebalance after instalment and how.
  • What are people doing with regard to the throttle cable adjustments.
Thanks in advance.

Cheers
Steve
 
Last edited:

V700Steve

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GTM®

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I'm aware of those stats but I was thinking more the difference between the 200 and 300 for power gains.
Insignificant outside of smoothness and dynamic balancing between cylinders (which is impressively better).
 

TurcoLoco

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Jan 19, 2019
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Kalifornia
Do these fuel mapping issues apply to a new 2017 Stelvio too?
I just got the bike and would hate to have to spend $1200 more just to have it run the way it is supposed to?
 

GTM®

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Do these fuel mapping issues apply to a new 2017 Stelvio too?
I just got the bike and would hate to have to spend $1200 more just to have it run the way it is supposed to?
Emissions is emissions, regardless of year. That said, the 2017 is leaps better than the 2009. However, most find the GT reflash alone adequate. If you have a ton of miles under you, you will enjoy the benefits of the full kit.
You don’t have to do anything.... You can get used to the running, heat and low speed throttle if you choose to.
 

TurcoLoco

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Emissions is emissions, regardless of year. That said, the 2017 is leaps better than the 2009. However, most find the GT reflash alone adequate. If you have a ton of miles under you, you will enjoy the benefits of the full kit.
You don’t have to do anything.... You can get used to the running, heat and low speed throttle if you choose to.
What exactly is the heat and low speed throttle issue please?

Not sure why they make the motorcycle manufacturers put on all the CA emission crap when almost every rider I know removes the related pieces from their bike and/or get their ECU flashed.
I have not yet ridden the bike yet. I will pick it up this weekend and planning on riding it from the dealer to home which would be like a 90+ minutes of riding. Mostly freeway but it should give me an idea.

Yes, I am looking to hold on to it for a long, long time! GT reflash means I bring in my ECU and you flash it and give my ECU back, or would I get someone else's, presumably older/used ECU?
If it is the former, I would definitely be interested in it after riding the bike and evaluating it first.
Your ECU flash fee($250?) seemed very reasonable.

I could drop off the ECU and then pick it up when done, would that work?

Thank you for the reply.
 
Last edited:

TurcoLoco

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Todd,

Is there a list of the fuel related modifications for Stelvio that you offer, both service and part wise and what the differences are performance and price wise?
I am super green and oblivious to the related shortcomings of the bike but if it is as pronounced as it is to warrant have all these services and products dedicated to it, I'd definitely like to be educated about it.

I checked out your web store, really nice btw, but I failed to get the above answers.

Thank you,
Matt
 

TurcoLoco

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The whole thread? OK, I will get back to you by 2020! :)

All joking aside, ECU flash is like stage one, I gathered that much, Not sure what #2 is but after ECU flash, I thought #3 was the next step.
Anyhow, I will read through the thread to find the answer and go from there.

Thank you.
 

GTM®

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All joking aside, ECU flash is like stage one, I gathered that much, Not sure what #2 is but after ECU flash, I thought #3 was the next step.
Anyhow, I will read through the thread to find the answer and go from there.
I forgot the link to the flash tool, but I added it above and now here; https://gtmotocycles.com/products/gt-motocycles-5am-7sm-reflash-tool -- this allows you to flash the ECU in place, and functions as a diagnostic tool also (needed for TPS reset post flash). Read the link for info. Once you think you have a grasp on it, you can email me for details; Todd at GuzziTech.com
 

dennisj

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Jan 17, 2016
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Southern New Jersey, Near Philadelphia
Todd,

Question about temperature reduction after installing the full kit. I think you stated that you measured 40 degrees of engine temperature reduction after this full fueling kit. This is degrees F, correct? Can you please share the before and after kit installation actual temperatures? I've attached a photo of my 2014 Cali 1400 Touring with a "Red" and "Green" mark indicating where I took my temperature measurements.
On the Starboard cylinder I measured ~320-340 degrees F at the green spot location, and ~380-400 degrees F at the red spot location.

So, I used a digital thermometer and measured at the cylinder head fin about 1 inch from the exhaust flange (painted black on my engine), this is the "Green location". Then I measured on the chromed exhaust flange itself, this is the "Red location".

cali_1400_starboard_head_temps_mark.jpg
I'm asking this because I'm trying to make a decision about installing this kit on my bike. Lowering engine temperature is about the only desired benefit I seek because my bike has never pinged, surged, poped, backfired or had any difficulty running. My engine pulls reliably from 2000 RPM in all but top gear and never chugs, surges or stumbles while doing so. BUT, if the ambient temperature is above 90 degrees F I'm duly uncomfortable riding it. Perhaps this is a condition that will persist even if I were able to obtain a 40 degree reduction in engine temperature, but that is kind of what I'm trying to evaluate, considering the investment. I'm currently satisfied with my bike's performance and I especially enjoy the quiet stock exhaust. Fuel efficiency would also be a desirable benefit I would consider as I currently get between 30 and 35 MPG reliably.


Thanks,

Den.
 

Ken Wantje

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Jul 26, 2021
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Saugerties, NY 12477
Todd, I am considering your fuel mod for my 16" Audace. I have a question that may have been answered in this forum somewhere but don't have time to read the entire subject matter. When I went to the Dynojet web site, why don't they offer the PC-V for any Moto Guzzi motorcycles? Moto Guzzi is not even in the drop down menu for product selection....
 

GTM®

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Ken, this isn't my Inbox, and I don't catch every post here; Please use the CONTACT link HERE for all questions, as I have help these days.
On the first post of this thread you'll see the note where I worked with them directly to bring products only available here. People try to go around me all the time, and they used to send them back to me... However the newer employees do not know of my long-standing relationship, so you won't see anything online, and if you reach out directly you'll likely just hear "we don't make anything..."
 
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