V-Twin Forum banner
1 - 9 of 9 Posts

·
Registered
Joined
·
175 Posts
Discussion Starter · #1 ·
2006 Ultra

Im adding VH duals, Screaming eagle AC and PCIII. Do i need to get ECM stage 1 flash from dealer or does the PCIII eliminate the need for it?

THANKS
 

·
Registered
Joined
·
297 Posts
Wide1 said:
2006 Ultra

Im adding VH duals, Screaming eagle AC and PCIII. Do i need to get ECM stage 1 flash from dealer or does the PCIII eliminate the need for it?

THANKS
The PC can handle that all by itself........Bill
 

·
Premium Member
Joined
·
11 Posts
Wide1 said:
2006 Ultra

Im adding VH duals, Screaming eagle AC and PCIII. Do i need to get ECM stage 1 flash from dealer or does the PCIII eliminate the need for it?

THANKS
As a matter of fact, getting the Stage 1 download from the dealer could make it more difficult to use the PCIII without a dyno tune. If you use the PCIII with a stock ECU, the powercommander web site lists many available maps. There are currently none available for your '06 model with the stage 1 ECU. Hope that makes sense--check out their site and it should be clear. To sum it up, use one or the other.
 

·
Premium Member
Joined
·
61 Posts
Something to consider: With your setup, the bike won't run well with the stock ECM if your PCIII takes a dump in the middle of no man's land. On the other hand if you have the dealer flash and the PCIII fails in the middle of nowhere you can unplug it and the re-flashed ECM will get you home with no problems. Also, the re-flash raises the redline well above that of the stock ECM.......not sure if the PC III does that or not. These factors may be unimportant to you but perhaps you want to factor them into your decision making.

Regards.
 

·
Registered
Joined
·
175 Posts
Discussion Starter · #6 ·
jlelliott said:
Something to consider: With your setup, the bike won't run well with the stock ECM if your PCIII takes a dump in the middle of no man's land. On the other hand if you have the dealer flash and the PCIII fails in the middle of nowhere you can unplug it and the re-flashed ECM will get you home with no problems. Also, the re-flash raises the redline well above that of the stock ECM.......not sure if the PC III does that or not. These factors may be unimportant to you but perhaps you want to factor them into your decision making.

Regards.
That is a great point, which I have not considered. Is is common for the PCIII to fail?
 

·
Registered
Joined
·
22 Posts
We've installed over 100 Power Commanders and have only had one returned with a problem and that was the owners fault...he had cut the wiring when he had rerouted it.

The new PCIII USB can have the rev limiter raised to 6200 rpm...the dealer should be able to do it for you.

GareyD
 

·
Registered
Joined
·
175 Posts
Discussion Starter · #8 ·
GareyD said:
We've installed over 100 Power Commanders and have only had one returned with a problem and that was the owners fault...he had cut the wiring when he had rerouted it.

The new PCIII USB can have the rev limiter raised to 6200 rpm...the dealer should be able to do it for you.

GareyD
Thanks, thats reassuring.........since I just bought 2 of them.
 

·
Premium Member
Joined
·
48 Posts
ECM recalibration and Power Commander

This from Mike at Team Latus:
Response to question; Is an ECM download required even though a Power Commander is installed?
We indicated to this customer that it HAD to be done. This is not true, but we do recommend it. The following explains our reasoning.
Mike

Chris, perhaps in an effort to give you the best possible and most correct product we may have been overly enthusiastic with respect to the cartridge recalibration. It is our policy to STRONGLY recommend a calibration, in modified bikes utilizing Power Commanders, which brings the ECM as close as possible to the performance combination installed. The reasons for this are;

The values in the PC mapping will not be as large or as likely to hit limits. Very large values or transitions (between cells) can lead to drivability issues. As a “piggy back” device, it starts with the ECM values which it must then modify to be correct for the bike combination. The less appropriate the base ECM, the larger these modifiers must be.
Should the PC fail (rare these days), the bike would be in a rideable condition vs. putting it on a trailer. The risk being a very lean or other condition which could lead to motor damage or failure, when the PC is not actively modifying the base ECM. We wish our customers to be aware of this risk and the additional $150.00 expense is good insurance for this protection.
From a strictly technical standpoint, we feel this is the correct approach and results in a better overall tune. The base ECM offsets, tuning constants, spark tables, VE tables, warmup enrichment and other tables will be more effective with a base cal. that is closer to the combination to be tuned. There are a lot of tables in the base ECM which the PC does not address.
We recognize that Dynojet and others advise that the recalibration is not required and that the PC is capable of tuning from a stock calibration. This is true and we would (and do) tune PC equipped bikes with stock or stg1 cals., so long as customers are advised of the above recommendation and are therefore making an informed decision. It would be remiss of us NOT to inform customers of this risk as they often rely upon us to be “the experts” and to give them what information we have that may affect their motorcycle. We stand by our reputation in this field, will continue to have these discussions with our customers thus allowing our customers to be the most informed and knowledgeable about their bikes and related decisions. This letter will be given to our staff so that, in the future, our customer conversations will be consistent. Your letter will be cc’d to our service manager, Fred King.

Regards, Mike
 
1 - 9 of 9 Posts
Top