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DYNOJET: ECM that has been flashed

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Old Aug 7, 2016 | 07:51 AM
  #31  
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Originally Posted by Just Nick
does need a tune if you don't want to be dealing with another engine issue
If time permits could you elaborate on this .

I' m spending a lot of time reading today and yesterday in an effort to learn.

I'm leaning toward getting it somewhere to be tuned. If I can

Thanks WP
 
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Old Aug 7, 2016 | 08:45 AM
  #32  
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Originally Posted by WP50
I'll keep this and thanks.

Do you think this will still apply since I learned what I have my last 2 posts?

Thanks Again WP
negative. with a build like what you're talking about and a PCV, you REALLY need to get this to a dyno tuner.


and yes John did those heads for me and I never used them. Here are the specs on those heads.
 
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Old Aug 7, 2016 | 08:48 AM
  #33  
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Originally Posted by WP50
Gentlemen I sure do appreciate the help.

The motor has had head work. Now exactly what that means I'm not sure of'
The head work from here http://jwperf.com/
Cams GMR 577 will try and double ck specs
http://gmrperformance.com/products/cams/

The cam specs
Intake Exhaust
lift 577 557
dur 243 238
open 20 43
close 43 15


Theses specs are from the the fella I bought the motor from.
Other than the heads and cams the engine is Stock as per Chad

In getting ready to take the bike to a dealer to try and find out just what is in the ECM I took the PC5 off the bike to avoid a bunch of questions like I had at another dealer yesterday. They were pushing to leave the bike with them and they would fix me right up. Maybe they can but this is my chicken and I'm screwing it.

Now in taking the PC5 off and riding the bike around the block I noticed it seemed to be running well. So I went up the road a ways just play with it some. I don't think it is running perfect (some hesitation) but the miss certainly was gone at least for the 3-4 min ride. Where as before it would be missing as soon as I took off.

Headed to another dealer to see if I can get the info I feel is needed.
Wish me Luck

Thanks again WP
with the cam specs you already have and the head specs I just posted above, that's all you need to take to the tuner with you besides your PCV. It's great that at least you know the tune in the bike is from a SEPST. Don't supposed the guy you bought the bike from gave you the tuning device? If he did, WP50 I would use that before I use that PCV.
 
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Old Aug 7, 2016 | 08:55 AM
  #34  
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Originally Posted by Wide Open Cycles
Ultranutz can probably tell you a little about the heads. They were originally done for him by JW Performance. He never installed them and ended up selling them to a guy North Carolina when there were installed on the engine you bought. The cams that were sold with the heads were removed and a set of GMR 577 cams were installed. Shortly after that build the bike was brought to me to swap out the 103 for a 124". I can say that you have a very good engine that would really benefit from a proper dyno tune. UltraNutz also lives Texas and might be able to point you in the right direction to get a good tune.

Todd, Dave lives in MidLand. Any recommendations?
good to see this setup still floating around. I almost bought the engine off of you myself. :-)

anyways, I don't know anyone in the west texas area. With Nick here though and being near San Antonio, maybe he can recommend someone around the Abilene area that he might know.
 
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Old Aug 7, 2016 | 09:03 AM
  #35  
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Should look like this. (actual device may be black or orange, same function)
 

Last edited by rigidthumper; Jul 20, 2024 at 09:33 AM.
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Old Aug 7, 2016 | 09:03 AM
  #36  
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Originally Posted by WP50
If time permits could you elaborate on this .

I' m spending a lot of time reading today and yesterday in an effort to learn.

I'm leaning toward getting it somewhere to be tuned. If I can

Thanks WP
what Nick is saying is you don't want to be running around on an engine that has exhaust, intake, head, and cam modifications without it being properly tuned otherwise you'll wind up tanking the motor at some point.

My suggestion is this if you can't find anyone competent and local to you for tuning and in no certain order because they are all VERY good at what they do

Steve @ GMR in Dallas
Ed @ The Dyno Difference in Dallas
Nick @ Shamrock cycle in Plugerville
 
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Old Aug 7, 2016 | 11:23 AM
  #37  
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Originally Posted by UltraNutZ
Don't supposed the guy you bought the bike from gave you the tuning device? If he did, WP50 I would use that before I use that PCV.
Wasn't that lucky. Now I have some conversation on going with the PO and the Indy. I don't think the SEPST was in the bike. It being as important as it is I feel it should have been part of the deal.

It's been hinted at they may be willing to help replace it.
So we will see

WP
 
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Old Aug 7, 2016 | 11:24 AM
  #38  
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Originally Posted by rigidthumper
Should look like this. (actual device may be black or orange, same function)

Thanks The guys at the HD dealer yesterday showed me an orange one so I knew for sure what to look for.

WP
 
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Old Aug 7, 2016 | 12:05 PM
  #39  
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Yes what I meant was exactly what Todd said with the amount of engine work you have you really do not want to be running it with out a dyno tune on it. I am not a fan of the pc5 and personally do not believe it is going to do the job with the amount of work don't to your engine. Others may say other wise that is just imo. At the end of it all I think you need to find a good tuner that you will take the bike to and talk with them about what tuning module they like to use because every one is different. For instance I will tune with all 4 of the flash tuners available TTS , Direct link ,Power Vision and SESPT but every tuner has there "go to" module and some only tune with one or the other. I have my favorite also but it's up to the customer as long as it's one of the four mentioned.
 
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Old Aug 7, 2016 | 12:08 PM
  #40  
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Yup, my belief is that once you use the dongle on a bike, it becomes part of the bike and should stay with it. All your doing is screwing over the next guy if you don't give it up. People get hung up on the cost of the tuning and tuning devices. It should be considered part of the cost of doing the build. If someone cant or is not willing to spend the money on the final part, why even start. JMHO tho.
 
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