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ThunderMax question - Low performance

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Old Jan 14, 2008 | 01:15 AM
  #1  
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Default ThunderMax question - Low performance

So I got thundermax installed, and now it seems I get some Low performance out of it.

When I first installed and mapped it it felt like i had more throttle response/torque.

Now (well over the 300 miles of autotuning) it runs fine, BUT
power seems low, i hit the throttle and don't feel the torque.

* I have the right Map (thundermax told me to set it)
* Autotune is ON (yes the new o2 sensors installed)
* Programming: I mapped it, checked autotune was on, set the 290 degree temp turn off.

So now I would like to get it to run OPtimal (most power)
So I'm wondering if there are some things COMMON to LOOK FOR that
Others have experienced here.

Either I fix it or I take it to a shop with Tmax experience, but i need
more out of it by summer.... :-(
 
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Old Jan 14, 2008 | 06:35 AM
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Default RE: ThunderMax question - Low performance

First, check and make sure you are running in "Closed Loop" mode. Second did you do the intiailization? 3 on 3 off cycle as well as start the motor cold and let it sit and warm to 289? After that make sure you have no trouble codes "link up" and read the trouble codes all should be clear.

That's a good starting point. Should feel the power immediately if it's installed properly, fuel mileage will be around 30 MPG +/- at default settings.
 
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Old Jan 14, 2008 | 09:37 AM
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Default RE: ThunderMax question - Low performance

xbox


What year and model is your bike, what mods have you done, and which map number are you running?
 
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Old Jan 14, 2008 | 11:45 AM
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Default RE: ThunderMax question - Low performance

you did something wrong. Start from scratch
 
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Old Jan 14, 2008 | 11:47 AM
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Default RE: ThunderMax question - Low performance

ORIGINAL: joeschmoe

First, check and make sure you are running in "Closed Loop" mode. Second did you do the intiailization? 3 on 3 off cycle as well as start the motor cold and let it sit and warm to 289? After that make sure you have no trouble codes "link up" and read the trouble codes all should be clear.

That's a good starting point. Should feel the power immediately if it's installed properly, fuel mileage will be around 30 MPG +/- at default settings.
I did what u listed above previously, except check for trouble codes.
I'll check that.

I did feel more power right after it was programmed, Now I seem to have lost power graduly as it autotuned.
 
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Old Jan 14, 2008 | 11:48 AM
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Default RE: ThunderMax question - Low performance

ORIGINAL: fxrp

xbox


What year and model is your bike, what mods have you done, and which map number are you running?
Sorry I got a 2007 Dyna Streetbob.

Only Mods are Thundermax and Big Sucker air intake (open filter).

I'm running map 392, zippers told me to use that map.
I got Rush slipon's.
 
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Old Jan 14, 2008 | 01:18 PM
  #7  
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Default RE: ThunderMax question - Low performance

ORIGINAL: xbox

Sorry I got a 2007 Dyna Streetbob.

Only Mods are Thundermax and Big Sucker air intake (open filter).

I'm running map 392, zippers told me to use that map.
I got Rush slipon's.
Well I wouldn't be running 392 that's a stock bagger with slip-ons. I would use 403 which is a stock Dyna with slip-ons. Attached is map 403witheditedAFR tables.

Download and delete the txt extension. I haven't done anything with basic settings so you'll have to make sure that closed loop is on (should be),speedo settings, etc.
 
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Old Jan 14, 2008 | 02:34 PM
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Default RE: ThunderMax question - Low performance

Did you call fortech support? That would be the firstthing I would do....
 
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Old Jan 14, 2008 | 05:05 PM
  #9  
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Default RE: ThunderMax question - Low performance

Has you feul economy gone down as well? If so, have you checked for an intake leak?

VicW.
 
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Old Jan 22, 2008 | 11:55 PM
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Default RE: ThunderMax question - Low performance

sorry for the late reply.

Yes contacted support, they confirmed that I should use map 403....

thanks guys...

I'm gonna load the new map this weekend.
and I assume i gotta do the engine temp set also.... but they gave me instructions on what to do.

I'm getting like 30 mpg right now... but always got low gas milage with since i bought it.
let's see what it does after the proper map.
 
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