Dyno tuning

[Plow Horse]

I've read on here somewhere that tune ECU is better than PCV. Problem is, I couldn't find anyone in SoCal that uses it.

A month ago you were quite happy with the results you got taking your bike to MCM. Don’t let a post by someone make you start second guessing your decision.

 

[NotSoHiddenFox]

Especially when taking the bike past half throttle is already go to jail speeds.

 

[Kevin frazier]

Like @Joesmoe always says, as long as you are happy with your ride. Thats what matters

 

[Tal]

So...Walking Tall is talking RWHP...not crank...
I did very much the same as he did on my '16 Roadster...I had Tors but changed them for Jardine header and cans....triple k&n's...PCV...deleted the o2 sensor.
Put her on a dyno jet dyno....aimed at getting the air/fuel ratio nice and even...added a bit of fuel low down which decreased the decel pop and ended up with 135 RWHP ...the bike was significantly better in performance and ran real smooth.So much so that you could feel the power thru the throttle at a lesser twist.
If you add 15% to this figure you will get pretty close to the crank HP....155.75....not too bad for just getting the fueling right.
I was keen to get the bike tuned so it wasnt running lean.....as we know, theyre tuned lean to meet emission laws and by adding stuff as i did, this would make it leaner again. Mine was very very lean down low in the tune so i am glad i had it done....just my two bobs worth...cheers.

 

[Walking Tall]

A month ago you were quite happy with the results you got taking your bike to MCM. Don’t let a post by someone make you start second guessing your decision.

Appreciate that P.H.

 

[Walking Tall]

So...Walking Tall is talking RWHP...not crank...
I did very much the same as he did on my '16 Roadster...I had Tors but changed them for Jardine header and cans....triple k&n's...PCV...deleted the o2 sensor.
Put her on a dyno jet dyno....aimed at getting the air/fuel ratio nice and even...added a bit of fuel low down which decreased the decel pop and ended up with 135 RWHP ...the bike was significantly better in performance and ran real smooth.So much so that you could feel the power thru the throttle at a lesser twist.
If you add 15% to this figure you will get pretty close to the crank HP....155.75....not too bad for just getting the fueling right.
I was keen to get the bike tuned so it wasnt running lean.....as we know, theyre tuned lean to meet emission laws and by adding stuff as i did, this would make it leaner again. Mine was very very lean down low in the tune so i am glad i had it done....just my two bobs worth...cheers.

Tal, awesome!

 

[sonny]

Mickey Cohen's got me to 160 with RamAir, tors, and a PCV.
Roughly 35mpg combined.

He sprinkled fairy dust on the results. I have aftermarket street cams, 3 into one complete exhaust system(Viking) and ramair. Last dyno pulled 168 at back wheel.

 

[sonny]

After a tune you should get better milage, lean isn't better milage effecient is better milage. My Victory is cammed with all the other goodies and my milage went up.

I have a 2010 Harley that is completely tricked out. With every upgrade my mileage dropped. Engine pumps more air and more fuel something has to give somewhere.

 

[sonny]

Walking tall your fine. Results are in the ball park for the mods you did. A good tune is not always just about horse power gains.

 

[vindex1963]

I have a 2010 Harley that is completely tricked out. With every upgrade my mileage dropped. Engine pumps more air and more fuel something has to give somewhere.

Mine sure didn't my milage went up and the power increase was significant.