Gap closed loop tuning!!

[sideshowBob]

Did you shorten the spacers on the throttle body clamps this summer?

I started with good intentions to do the clamp mod but never got around to doing it.

 

[1nc 2000]

Ok, sounds good. Not enough snow here yet to ride.

 

[DMCTurbo]

I started with good intentions to do the clamp mod but never got around to doing it.

Curious to know what gearing you are running?

 

[fatchance]

Bob. You recently installed the bigger fuel pump... Correct?

 

[sideshowBob]

Bob. You recently installed the bigger fuel pump... Correct?

LOL...I forgot about that!
Yes I installed Hurricanes High output Fuel pump and fuel regulator...I also rerouted the fuel return line to over the the fuel pump slipper.
All in the off season...maybe has something to do with over rev?

 

[fatchance]

I'm thinking between the new fuel delivery and closed loop, your probly making more power or just plain more efficient.

 

[fatchance]

I just wired up the bigger pump via bigger relay today. Not one bit of snow on the ground in western Maine to test.

 

[1nc 2000]

LOL...I forgot about that!
Yes I installed Hurricanes High output Fuel pump and fuel regulator...I also rerouted the fuel return line to over the the fuel pump slipper.
All in the off season...maybe has something to do with over rev?

How much higher are the rpm's?

 

[sideshowBob]

I'm thinking between the new fuel delivery and closed loop, your probly making more power or just plain more efficient.

Dave at Hurricane explained to me that the closed loop allows the selected tune to perform at the performance level the tuner designed.
For example a 240 tune will actually make 240hp with an optimum muffler and intake.

 

[sideshowBob]

How much higher are the rpm's?

The rpm increase varies, and I never data logged any rides, but the 240hp tune was over 100 rpm higher and the 270 tune was revving well over 200 rpm higher then last year, around where the 300hp tune used to run. I never ran the 300hp tune because the rpms were already high.

 

[SledFreak]

Dave at Hurricane explained to me that the closed loop allows the selected tune to perform at the performance level the tuner designed.
For example a 240 tune will actually make 240hp with an optimum muffler and intake.

So for me that does not mean much... ie... So if a tune is 270 SM and requires 3bar map sensor, CAI and blow off valve and you don't install the closed loop, but all other requirements are installed, then are you making the required 270?

 

[sideshowBob]

So for me that does not mean much... ie... So if a tune is 270 SM and requires 3bar map sensor, CAI and blow off valve and you don't install the closed loop, but all other requirements are installed, then are you making the required 270?

That's a question I am not qualified to answer but we all know any engine develops varying levels of power dependent on barometric pressure, temperature, altitude humidity, ect. The more components and electronics controlling and compensating for all the variables will allow for optimum performance and hp output.

 

[DooZ]

That's a question I am not qualified to answer but we all know any engine develops varying levels of power dependent on barometric pressure, temperature, altitude humidity, ect. The more components and electronics controlling and compensating for all the variables will allow for optimum performance and hp output.

Thus increased RPM from the added HP. Sounds like you'll be adding some weight to the clutch to bring the rpm down if you want to run the bigboy tune. This is a good problem to have! lol

 

[hman4]

I started with good intentions to do the clamp mod but never got around to doing it.

Pull the throttle bodies if you do the mod, way easier to see whats going on. Still not an easy job but at least you know you have the clamp’s on right. I couldn’t see anything with out removing them.

 

[Turboflash]

Pull the throttle bodies if you do the mod, way easier to see whats going on. Still not an easy job but at least you know you have the clamp’s on right. I couldn’t see anything with out removing them.

Off topic to OP but I just did clamp spacer mod to 2 TCats this last weekend. There was 2 of us working together. With one holding up and out on throttle bodies, it was easy for the other to pull the spigots out making it unnecessary to remove them. Did each sled in about an hour.