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CVO Technical => Twin Cam => Topic started by: Weasels on December 20, 2009, 02:46:29 PM
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I just had my bike tuned on a Dyno and the result are good. The only mod are 2" Fullsac baffles and a SERT.
Before tune 81.68 HP after 97.23, increase of 15.55 HP
Before tune 103.2 ft-lbs after tune 114.78, increase of 11.58 ft-lbs
Anyways I think the Dyno tune is well worth the money.
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Sorry here is a better Dyno sheet with numbers on the edges.
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I can't decide between the SERT or a TTS......great numbers
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Thats a nice increase! nothing like a good tune. Enjoy :2vrolijk_21:
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Great increase for a tune, time to head for the dyno
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yes, those numbers do look good, But I warn here that just because someone has a Dyno, doesn't mean you get a good tune, In fact, the dyno doesn't tune, it gives the outcome of the tune, SERT and TTS seem to be the best marraige for the dyno, although the is a guy here who uses the PC with his dyno, different Dyno have different features, like putting a load on in different gears/throttle positions.
when someone says " I had it Dyno'd" i'm really interest in what comes next.
if someone is profficient with TTS he can get his bike to within a few % points of a dyno, without the extra cost and additional wear and tear on a bike.
anyone ever hear of someones bike getting trashed on a dyno? i know I have
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I thought the AFR was supposed to be a straight line? :nixweiss:
I'm just going with a TTS from Steve at Fullsac and his map for 1.75" baffles, decatted head pipe, and SE air filter. No dyno for my bike.
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I thought the AFR was supposed to be a straight line? :nixweiss:
I'm just going with a TTS from Steve at Fullsac and his map for 1.75" baffles, decatted head pipe, and SE air filter. No dyno for my bike.
Wise choice, may I suggest you do a Vtune with it, premade maps are ok but to get the most out of mastertune do a Vtune, or 2 or 3. I've done several on mine a blended them all to get what I feel is the best.
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I thought the AFR was supposed to be a straight line?
It is fairly straight, the bottom line is where it was before the tune. The new ARF is the blue line that follows the red dotted line, thats why it is blue instead of red.
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yes, those numbers do look good, But I warn here that just because someone has a Dyno, doesn't mean you get a good tune, In fact, the dyno doesn't tune, it gives the outcome of the tune, SERT and TTS seem to be the best marraige for the dyno, although the is a guy here who uses the PC with his dyno, different Dyno have different features, like putting a load on in different gears/throttle positions.
when someone says " I had it Dyno'd" i'm really interest in what comes next.
if someone is profficient with TTS he can get his bike to within a few % points of a dyno, without the extra cost and additional wear and tear on a bike.
anyone ever hear of someones bike getting trashed on a dyno? i know I have
I agree with most of what you say. You have to find a good tuner, there are way more dyno's than good tuners. It's still up to the person to decide which way to go, just showing the results of they way I went. There has been some discussion here as to whether you need a tune with just an exhaust change, I think this shows that you do. Chose what ever method works best for you.
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Bill,
Real nice increases, we will have to go to JARZ once the weather improves.
geezerglide
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I agree with most of what you say. You have to find a good tuner, there are way more dyno's than good tuners. It's still up to the person to decide which way to go, just showing the results of they way I went. There has been some discussion here as to whether you need a tune with just an exhaust change, I think this shows that you do. Chose what ever method works best for you.
I think what is shows is that a Stage 1 (exhaust. air cleaner) increases performance. There is no specific evidence of any other improvement other than a printout after the exhaust.
While Dyno printouts are nice they give no insight to what actual changes were made.
IMHO Using the vtune on TTS or the record feature of the Super Sert will yield the same results.
The XIEDS also will improve the A/R ratios to a lesser precision but still practical usable result.
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I think what is shows is that a Stage (exhaust. air cleaner) increases performance. There is no specific evidence of any other improvement other than a printout after the exhaust.
While Dy no printouts are nice they give no insight to what actual changes were made.
IMHO Using the tune on TTS or the record feature of the Super Sett will yield the same results.
The XIEDS also will improve the A/R ratios to a lesser precision but still practical usable result.
I did not indicate an air cleaner change, just baffles. The fist run is before a tune, the second after the tune. That is what the print out shows, there was no run done with stock exhaust. As for type of tune do what works best for you.
I made the mods when the bike was new, never rode bike with stock exhaust and as far as I was conceded the bike ran great, just a little hot still. Had the bike tuned and sharing the results. Up here in the north we have to much flippin snow for me to test ride yet, but thats another post. If you don,t like my method or opinion thats okay. I am just sharing my results for those who are interested.
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Not trying to rain ( perhaps snow is a better word) on your parade. The improvement indicated is great. Especially if it is just the changes in EFI and ignition timing.
Just addressing the need portion question?
To clarify if you used a TTS, and then VTune it like Larry suggested I believe you would achieve similar results.
There are many ways to get the same place. No doubt the factory fuel ratios need to be corrected and that it will yield more performance and less heat.
The bike will run properly though with an exhaust mod without it. The key IMO is there being no decel popping or backfiring as the fuel ratio is still compensated by the ECM and O2 sensors. The post 2007 bikes are different animals with the introduction of Closed Loop operation
I believe it is a good thing just more of a want than a need?
We all know opinions are like #$%^oles everybody has one, Not trying to be one.
Thanks for the information
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yes, those numbers do look good, But I warn here that just because someone has a Dyno, doesn't mean you get a good tune, In fact, the dyno doesn't tune, it gives the outcome of the tune, SERT and TTS seem to be the best marraige for the dyno, although the is a guy here who uses the PC with his dyno, different Dyno have different features, like putting a load on in different gears/throttle positions.
when someone says " I had it Dyno'd" i'm really interest in what comes next.
if someone is profficient with TTS he can get his bike to within a few % points of a dyno, without the extra cost and additional wear and tear on a bike.
anyone ever hear of someones bike getting trashed on a dyno? i know I have
I have often wondered about this. They seem to rod the heck out of it!
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Not trying to rain ( perhaps snow is a better word) on your parade. The improvement indicated is great. Especially if it is just the changes in EFI and ignition timing.
Just addressing the need portion question?
To clarify if you used a TTS, and then VTune it like Larry suggested I believe you would achieve similar results.
There are many ways to get the same place. No doubt the factory fuel ratios need to be corrected and that it will yield more performance and less heat.
The bike will run properly though with an exhaust mod without it. The key IMO is there being no decel popping or backfiring as the fuel ratio is still compensated by the ECM and O2 sensors. The post 2007 bikes are different animals with the introduction of Closed Loop operation
I believe it is a good thing just more of a want than a need?
We all know opinions are like #$%^oles everybody has one, Not trying to be one.
Thanks for the information
Not much chance of rain here for awhile. Everyone is entitled to an opinion and pointing out that there are different ways to get similar results is important, especially the dangers of having a bike on a dyno with a poor tuner. Anyways I hope to see rain by February or March. I didn't think you were an #$%^ole, no offence taken.
Thanks Bill
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if you were to have a glance at the SE 3D AFR maps coming with the super sert you should see that the afr decrease with the RPM . Typically after 4000 rpm.
I would not run full power at 5000- 6000 rpm for a long time with a AFR at 13,5....
best