| Author | Message | ||
     Baggermike |
He Guy's got my bike on the dyno yesterday and bob at Johnson engine technology, INC is were I had it done, the bike is sensitive to the engine temperature and varied 5HP depending on the engine temp, best power was 75TQ and 130HP but picked up low end power which I could feel by the seat of my pants test, also said that a longer supertrapp maybe better but would have to have headers made again and the ten inch stailless steel S/C serries has a mounting tap that lines up with a hole on the motor so got lucky there and did not have to weld brackets. the bike is running and sounds awesome, I have not had the re flash yet and I get just a little surging belowe 4000RPMS and does not bother me, I did not say anything about the fuell boiling but he picked up on it by the feel of the frame, gas boils at a lower temperature than water, told me to be carefull when opening the cap to refill. Almost got everything to drag race the bike, just need to hook up a tether kill switch, they are made for the handle bars but do not have any handlebar room. I also am waiting on a new top clamp that is being custom made for me and this will solve some of the problems I have, when I get the new top clamp on I will post pictures, it is the last thing I am waiting for, and then the bike will be finished. Mike | ||
| Mustangturbo |
Supertrap exhaust? Got any pictures? | ||
| Rfischer |
"Seat of the pants test". What does the dyno printout sheet show? I know Bob gave you one. Is there a measurable difference in the curve[s]? Or the "area under the curve"? Or did you not do a baseline dyno pull before changing the can? Just curious. Personally, I believe that other than [subjective] sound, it will prove nigh impossible to improve on the performance of the stock exhaust. | ||
| Baggermike |
Rfischer I just found the deals gap and dyno run posted belowe and my bike is making more power both in TQ and HP over stock, I did not know just was looking and thought the supertrap did not do anything but I guess it does. | ||
| Fresnobuell |
Bagger, welcome back.....it is really hard to compare power number from different dynos....the only true comparison would be if you ran your bike on the same dyno before and after. | ||
| Blazin_buell |
Your're killing me Mike , some pics of that exhaust. And a sound clip please. | ||
| Big_dog |
I'm glad to hear about a SuperTrapp!! I personally think they're the best exhaust because it's tuneable by adding or removing the discs. Can't wait to see the results ie: pictures with sound and the dyno results...  | ||
| Rfischer |
"....really hard to compare power number[s] from different dynos..." Impossible, actually. Also to compare numbers from different days, operators, etc. etc. | ||
| Baggermike |
Yes I agree it is hard to know really what is going on it was a dyno jet dyno and he put in the temperature and humidity factors, also the motor is heat sensative on how much power it will put out, all I can say is that I like the sound and it feels stronger down in the low rpms and is more responive, I will try again to post a picture but the last time it said it was to big, also have no way of recording the sound, would not even know were to start.  | ||
| Ccryder |
Mike: Send me the dyno pict and I'll resize for you. Neil | ||
| Baggermike |
Hi Neil have no pictures of the dyno sheet and will have to wait to I take more pictures which will be a while, I am almost done and waiting on one part to be machined, as soon as I get this part I will be done for the summer and fall season. | ||
| Fresnobuell |
How LOUD is that thing? | ||
| Krassh |
And is it blowing on the rear tire? | ||
| Bob_thompson |
Glad to have Baggermike back posting and nice to see his innovations but in this case I think he missed one important issue. i.e., most people do not like the original LOOKS of the stocker for its size but I think they (Buell) got it right with smoothness, aerodynamics, and how it fits tightly under the engine. I still want to see a flat turbo type of muffler that fits tightly under the engine with the proper "sound", two into one header and twin turnouts at the exit. Someone, probably a larger company with forming equipment should be able to also make it aerodynamic also. I'll patiently wait. Good job though Mike, I know what you were shooting for, with the power output. You should kick some butt on the strip. Be careful my friend,stay safe and have a "blast" down the 1340. On a similar note I'll almost bet someone could cut the stocker just aft of the flat part, re weld an end on with twin outlets AND get the sound fairly inexpensively but maybe with a loss of H.P. though. Still thinking............ (Message edited by bob_thompson on June 12, 2008) | ||
| Fresnobuell |
Other than the weight of the stocker, I think it is a great unit... (Message edited by fresnobuell on June 12, 2008) | ||
| Baggermike |
Fresno it is loud like the D&D I had on my xb but sounds different. Krassh yes it is blowing that way with a 360 degree heat shield, Bob do not cut the stocker it is made weird and like two sheets of thin metal instead of one thick piece I learned the hard way and ruined the exhaust, although the front chamber is not welded to the rear chanber and if you got rid of the front chamber you would have a louder stock exhaust, my feet were hot riding down the highway at 90 degrees out and can not imagine how the stock exhaust would cook them. | ||
| Baggermike |
IF I had access to a dyno I would try to make my own muffler or modifie one like one of the manufactuer latus, I was looking for some thing similar but could not find what I was looking for. Bob what is the proper sound? I think that varies per person on what they would think what the proper sound is, I like the sound of this pipe allot but was hoping for better numbers, was told it might be the length of the pipe but the next size is the race exhaust at 2" more and I have it but wanted stainess steel, and the next size is 17" long and would be melting the rear tire if not hitting it, also the pipe is not going to get damaged in a slide or tip over. I am still waiting for something better but for now I am happy, I gained some power and lost some weight and have a kick ass sound, sometimes reminds me of what a dragster sounds like but not as loud. | ||
| Mingo |
Mike, maybe you could try lengthening between the header and muffler with a short straight piece welded to a slightly angling piece of tubing. burnsstainless.com has all kinds of exhaust tubing and bends. | ||
| Baggermike |
Mingo the setup is perfect, I got the headers bolted to the front of the engine were the stock one did and the supertrapp has a mounting tab with a rubber vibration asorber and mounts right up the the engine so as far as mounting goes it can not get any better. Fresno the pipe weighs way less than the stock exhaust. | ||
| Mingo |
Good Job Mike!!! |
