Idle Throttle Blip TTS Datamaster VE % F vs. R

[strokerjlk]

FU Jim!! Lol You know it's the laserp tune!
It runs really well, I'm just a picky engineer. The added fuel helped. I did a rbabos garage brake vtune and found a couple lean cells in the 1250  30. 40 range. Pretty much problem is solved. Thanks for that.

Sucking on a beer and cigar at bike week right now. On iPhone armchair now. Once I get a chance, I can send more data for review. Map, screen shots etc.

Thanks so far!
Laser.

though you were talking about the 117

[laserp]

FU Jim!! Lol You know it's the laserp tune!
It runs really well, I'm just a picky engineer. The added fuel helped. I did a rbabos garage brake vtune and found a couple lean cells in the 1250  30. 40 range. Pretty much problem is solved. Thanks for that.

Sucking on a beer and cigar at bike week right now. On iPhone armchair now. Once I get a chance, I can send more data for review. Map, screen shots etc.

Thanks so far!
Laser.

though you were talking about the 117

No, I have a SERT on that, sorry, should have been a little more clear.
I'm hoping Bob's right about an intake leak, but can't check anything until the weekend.
I was wondering about the big difference between the F and R VE's way back, but just assumed it was not too abnormal. I'll recheck my CCP's too, but they were right where they should have been as best I can remember..190/190.
Dick

[laserp]

Checked for an intake leak by spaying silicon spray all over the intake manifold flange connections, where the rubber gasket is. No change in RPM at all. I guess I don't have a eak.

CCP's are at 190 each, so no tooth off.

What else could it be and is there definitely something I need find?

Thanks for the help.
Dick

[joe_lyons]

What's ur exhaust?

[laserp]

What's ur exhaust?

Jackpot 2-1-2 header, Jackpot Dynotuned Mufflers w/ std baffle.

I better check to be sure I have the right one one the right sides...

[rbabos]

Front and rear O2s in the right plugs?
Ron

[laserp]

Front and rear O2s in the right plugs?
Ron

White front, black rear.

[Durwood]

How bout some of them screen shots you promised.

[laserp]

How bout some of them screen shots you promised.

Tried attaching a larger vtune file, but too big. Not sure what screen shots would be useful.

[Durwood]

How bout some of them screen shots you promised.

Tried attaching a larger vtune file, but too big. Not sure what screen shots would be useful.

I'm just rattling your cage, carry on good man

[laserp]

What's ur exhaust?

The more open muff. is on the right side, which I believe is correct. Gives it a 2 into 1 effect, with the right being the less restrictive.

[FLTRI]

laser,
Did you try reducing the accel enrichment by say 20 units?
Simply pull up your map and go to the accel enrichment table and highlight the entire table and reduce by 20 units.
Put into the bike and check blippage.
Let us know what you discover,
Bob

[joe_lyons]

laser,
Did you try reducing the accel enrichment by say 20 units?
Simply pull up your map and go to the accel enrichment table and highlight the entire table and reduce by 20 units.
Put into the bike and check blippage.
Let us know what you discover,
Bob

Quick and easy

[laserp]

laser,
Did you try reducing the accel enrichment by say 20 units?
Simply pull up your map and go to the accel enrichment table and highlight the entire table and reduce by 20 units.
Put into the bike and check blippage.
Let us know what you discover,
Bob

Quick and easy

Bob and joe,
Will give it a go tomorrow. Just back and haven't had the chance yet.
Get back to ya on it!

[laserp]

I look at your map and I see a cam off a tooth...............Might just be me but your map is strange....................
Front VE is way low compare to rear VE and everytime I have seen them that bad the front cam is 1 tooth off.

Maybe what's making things look funny, at least a part of it, is I adjusted the EGR's to pull the min and max VE's for each cylinder closer together. More so for the rear, as this one had a spread of 65 units (there may be an issue there). Using the rear EGR, I moved the near idle VE's up 15 to 20 units to close the gap to the max. Now there is only a 30 unit spread. This is why they are so different from cylinder to cylinder. The front was already only 35ish unit spread

Before I messed with EGR, they were within 10 of each other down near idle.

But don't get me wrong... I am still a hack..

I've felt all along that my pipes are too restrictive, especially at the low end. I want to try Jamie's competition baffles to see how they do (Dynotuned muffs), but would also like to try a completely different set of muffs., more open ones. Any comments here?

Bob - I did try the accel enrichment reduce, it did seem to help the blip.. still playing with it, if we could get some decent weather to work with her in NH.
Laser


Laser

[strokerjlk]

Before I messed with EGR, they were within 10 of each other down near idle.

..... Then don't do that.....

[FLTRI]

I've felt all along that my pipes are too restrictive, especially at the low end. I want to try Jamie's competition baffles to see how they do (Dynotuned muffs), but would also like to try a completely different set of muffs., more open ones. Any comments here?

Bob - I did try the accel enrichment reduce, it did seem to help the blip.. still playing with it, if we could get some decent weather to work with her in NH.
Laser

Testing has always shown more restrictive exhaust help, not hinders, low end torque which is very desirable for street applications.
Testing also has shown the same restriction that helps low end power can restrict high rpm power.

On the accel enrichment reduction, did you reduce the table by 20% just to see how it reacted?
Or did you make a slight change?

Bob

[laserp]

Stroker:
OK - go back to the pre EGR map. 

Bob:
I went the full 20 units.

[HD/Wrench]

I posted that up maybe in your other thread .. But yes BOB is spot on I have found that a rather large change on that acell function one way or the other to see what you need to do. There are times that you just have to make a change that is large enough to see what it does. Then move in that direction. Keep at it your making progress  Progress does not have to be the correct answer,..  but give you direction

[FLTRI]

Bob:
I went the full 20 units.

Try another 20 units. I recommended 20% not 20 units. If it got better keep going until you loose blipage then go back to the last change.
Bob

[laserp]

Bob:
I went the full 20 units.

Try another 20 units. I recommended 20% not 20 units. If it got better keep going until you loose blipage then go back to the last change.
Bob

Will do Bob and Steve. Your original post 36 does say units.. but no matter though, I understand the process, so I'll work it and see.
Thanks again and I'll follow up later this weekend.
Laser

[Mr. Wizard]

Take off your breather cover. Warm up the bike. Blip the throttle while watching the butterfly. Does the butterfly flutter open, half-open, open like it stair steps? Or is it a smooth transition, snap open, snap closed?

[strokerjlk]

Take off your breather cover. Warm up the bike. Blip the throttle while watching the butterfly. Does the butterfly flutter open, half-open, open like it stair steps? Or is it a smooth transition, snap open, snap closed?

[FLTRI]

Bob:
I went the full 20 units.

Try another 20 units. I recommended 20% not 20 units. If it got better keep going until you loose blipage then go back to the last change.
Bob

Will do Bob and Steve. Your original post 36 does say units.. but no matter though, I understand the process, so I'll work it and see.
Thanks again and I'll follow up later this weekend.
Laser

Oops sorry.
Bob

[Mr. Wizard]

Take off your breather cover. Warm up the bike. Blip the throttle while watching the butterfly. Does the butterfly flutter open, half-open, open like it stair steps? Or is it a smooth transition, snap open, snap closed?

You know where I'm going with this don't ya Jim...

The butterfly opening shutter effect is due to the Throttle Blade Control table. Generic 02 Data during the blip must be examined. If the butterfly shutters, it will create a stumble effect regardless of the AE table settings or timing. Adjust the TBC at the proper idle/off idle RPM/TGP to stop this shuttering effect.