103" ported head 10.25, 555torqster, decatted headpipe w/s.e. tips that appear to measure 2" baffles. open a/c.

Two questions......

1. If I tune above. Do I need to retune when I change out slip ons? Crushers.

2. Will useable power be added if I just make the switch to 2 into 1 (Dragula)


Thank you........Joe

 

1 Probably not
2 Maybe a little low end tq, hp should not change


Bwana

 

It seems as thou, most tuners believe the bike to have a better torque line thrughout the curve.

So slight increase, answer yes.

Decatted h/pipe with a good set of slip ons will perform on par with a set of 2/1 on a good running cam/head 103" motor.

Not all slip ons are created equal. The wrong slip on could lose up to 20ft lbs down low.

 

You can see a better curve and better numbers with a 2:1.

Not really enough to see with your assdyno.

Personal preference, really

 

1-What tuner are you using ?

2- The 2 into 1 should work good with you setup.

 

Trying to delete my comment.

 

Agree.

 

Powervision. But going in for a dynotune.

2/1 would work great. But, very little added power, compared to a stock decatted h/pipe with good slip ons.

This thread is not to discredit 2/1 pipe. It's to understand what's a benefit and whats not.


All this b.s. about this head and that pipe combo are awesome!!!

Maybe a head gasket change, decatted h/pipe, and good slip ons would save someone a couple thousand and net like results.

 

Joe,
Why not give Fuel Moto a call and see what they have to say.

One thing you would do for us is get a good map for your combo and go out and do a few auto-tunes with the PV. Then compare the base line with the finished dyno just to see what the difference is.

Good luck
Bill

 

Joe: You have a lot of questions, and what appears to to be a fair amount of confusion on what you want to do based on desired results out of your motorcycle. Nothing wrong with that at all, but you don't have to stay in "that place", and you've been there for some time. Here's what I'd suggest....

1. Figure out what you ultimately want out of your motorcycle
2. Write down ALL of the questions that you have about how YOU think you can achieve your desired results
3. Call Fuel Moto and talk with Bob; he knows his stuff backward and forward and will give you all the time you need

If you haven't had your bike dyno'ed yet, I promise you that you're going to be impressed all said and done, IF you're going to a really good tuner, and cutting NO corners as far as expense goes in that regard. What I don't know though is whether it's going to be all you're looking for out of your motorcycle, which is why I recommend that you silence all the voices (us!) in your head, and listen to the guy/guys that build motorcycles day in and day out, and really know their shiite. We all think we know our shiite, and do at varying degrees, but it would behoove you BIG TIME to focus your attention on guys like Fuel Moto, Hillside, etc. They will give you opinions based on years of achieving the results you want in motorcycle mods year after year after year. What I'd hate for you to do is to go to the expense of having your bike dyno'ed BEFORE you've put all the right components in place in order to achieve the results that the dyno (as a necessary, and finishing touch) can then give you.

Good luck.