Daytona Twin-Tech TCFI tuning

[bbrowncods]

Originally Posted by PhilM

I have the Geralomy Dual Runner TB too.

Does it just take a while to smooth out? I was looking @ the sample file last night and it seems to be much smoother than mine is "so far".

Thanks for the feedback!

Sorry, I didn't read your build. It will smooth out some but will never be a smooth flat line.

[bbrowncods]

Originally Posted by dragforce

Where is the baromter anyway?

It is the MAP sensor on the TB.

[bbrowncods]

Originally Posted by dragforce

I accept that if the map sensor takes a reading prior to starting the bike that may be the barometric pressure, but how does continuous barometric updates work?

Is there a way to check it with tcfi software etc...?

Not sure. It is probably done mathematically while running though.
OrigBaro - IdleMap = Constant

Then if the Original Baro changes so will the IdleMap, by a corresponding amount.
So the "Constant" will remain the same. Therefore,

Constant + NewIdleMap = NewBaro

Obviously, I'm just guessing.


You can check it in the Data Logging program, but it probably won't change during the short time your log file is running.

[The_Snowman]

Originally Posted by timberz

Mine was similar to yours. I have reduced the -16 to 32 cells considerably. Idle tuning seems to be right on now after a few stabs at it. The difference could have something to with the type of throttle body being used. Others who post here are more knowledgable than I about that stuff.

I contacted DTT tech dept. about modifying the advance tables and they told me not to modify using percentages; to use whole numbers. To think of the numbers as degrees. They didn't give a reason. I was asking them how to add some pep to the performance curve. They replied with "Try adding more advance and leaning the WOT AFR out to 13.5." I've done this but haven't had a good chance at seeing if there was an improvement. Cold, wet weather of late. If you got a Palm and use the View software it's a lot easier modifying the advance curves. It allows you to see the MAP & RPM if you start pinging.

How many of you with the TCFI, also use the Daytona software for Palm?

Which Palm are you using?

Is it as useful as it says on the Daytona website?

Rating on a scale of 5? 0 being useless and 5 being can't live without it.

Thanks, John

[The_Snowman]

Originally Posted by itsafatboy

well chris has some cool stuff comming for the tcfi this year, here is some of the enhancments.

1. Full 3D temperature/time cold start enrichment maps for front and rear cylinder
2. Double data logging capacity
3. Support for the H-D exhaust and intake actuators used on European models (and maybe US models in 2008)
4. User input for stage RPM limiting and other functions (Gen I had a user input that became the 2nd wide-band sensor input)
5. Basic setup and idle tuning by means of Palm Pilot (enhancements to TCFI II View)
6. Improved closed loop AFR response for transient conditions and lean excursions
7. Automatic ignition advance tuning based on ion-sensing ignition used to determine peak combustion pressure crank angle (this will also serve as a knock detection function)
8. Direct connection of narrow band sensors for OE applications that run 14.6 AFR at idle and part throttle

sounds good to me.

Any more information when these upgrades may be released? Thanks, John

[moorefun]

Originally Posted by The_Snowman

How many of you with the TCFI, also use the Daytona software for Palm?

Which Palm are you using?

Is it as useful as it says on the Daytona website?

Rating on a scale of 5? 0 being useless and 5 being can't live without it.

Thanks, John

I am using the Palm Vx with mine.

It is useful and does do what they say. The main things that I have used it for is; adjusting the timing, and tweaking the ARF at crusing speeds. It is nice to be able to see the TPS and the MAP when you hear pinging, so you know where to lower the timing.

I guess I would give it a 4

[The_Snowman]

Originally Posted by moorefun

I am using the Palm Vx with mine.

It is useful and does do what they say. The main things that I have used it for is; adjusting the timing, and tweaking the AFR at crusing speeds. It is nice to be able to see the TPS and the MAP when you hear pinging, so you know where to lower the timing.

I guess I would give it a 4

Mr Moore,
Thanks for the reply, I knew that at least one member must be using a Palm. I just picked up a new Palm i705 on eBay for $22.50. I know these things are 5 years old and used to sell for $449, dammmm

Next questions, did you get the Hotsync cord from the place recommended on the Daytona website? Any issues with the software or setup?

[moorefun]

I bought my cord off Ebay. It was 99 cents plus $4 shipping. It works fine. I actually bought 5 of them for $9.

No issues. It is straight forward, just install the software, hook it up to the DTT cable, launch the program. The only thing I wish it did was keep the last 3 guages I was looking at. When you close the program it goes back to the 3 default guages.

Mark

[moorefun]

I was just up there on Sunday.

We may go back thru there this Saturday.

Why do you ask?

[nw_guy4_fun]

Now for the DTT guys out there, are there any precautions I need to know. This is my first DTT install and a new motor so I want the fuel reasonably close. I have the TPS set at .58v
Set all the basic parameters and now got it fired up. Fired right off and runs good cold. Idle is fine. After starting the log software it appears right off idle is real rich BLM <75. I set the cranking delay to 1 and I am getting a little hard restart on a hot restart. It backfires sometimes. Maybe back to 0 may be better. Any other hints would be appreciated
The build is a 07 107" 55mm tb HQ600 cams 10.8/1 cr.
Also the advace was showing between 25 and 40 just running on the floor at various RPMS is that typical.
Sorry so many questions. I am ready to take a test ride not that the heat cycles are done. When I get back I will examine the BLM numbers and commit the correction. Sound Good?

[bbrowncods]

The TPS is set too high. You need to be at .38. That is, after you have the IAC around 30-35.
What MAP are you using?

[LAF]

As bbrowncods said you need .38-.40 on the TPS. But you need 30-35 on IAC. I use 35. I turn the bike on not running adjust the TPS. Then I start it and Live View for IAC and temp. You shoot for falling IAC to 35 at 110C or so. If you run out of IAC adjustment chances are you screwed the pooch on the TPS setting and it is out of range. Shut the bike off check TPS and adjust if needed, restart when it is cool enough to have time to adjust IAC before you hit 110C again. You may have to go back and forth a bit to you get it.

This is the way I was taught by GROCK and it works for me.

I had to lap my throttle body on the duel to have both blades closed and hold liquid. These things are very sensitive and TPS at .40, IAC at 35 are what the whole system is based on and you need to get there.

Never used the crank thing on th 10.5:1 6HG or the current 10.8:1 585/615 I am running.

The best time I have found to set it up for good is after a good long ride, let it cool down with box fans, then I go through the adjustment TPS to IAC to TPS at 110C. Just seems you want everything heat soaked to get the setup precise.

Originally Posted by nw_guy4_fun

Now for the DTT guys out there, are there any precautions I need to know. This is my first DTT install and a new motor so I want the fuel reasonably close. I have the TPS set at .58v
Set all the basic parameters and now got it fired up. Fired right off and runs good cold. Idle is fine. After starting the log software it appears right off idle is real rich BLM <75. I set the cranking delay to 1 and I am getting a little hard restart on a hot restart. It backfires sometimes. Maybe back to 0 may be better. Any other hints would be appreciated
The build is a 07 107" 55mm tb HQ600 cams 10.8/1 cr.
Also the advace was showing between 25 and 40 just running on the floor at various RPMS is that typical.
Sorry so many questions. I am ready to take a test ride not that the heat cycles are done. When I get back I will examine the BLM numbers and commit the correction. Sound Good?

[nw_guy4_fun]

I am at .4V now. The TPS % shows 2%. How do I zero it? I am confident once I get this right I will be able to tune from there.

[LAF]

Originally Posted by nw_guy4_fun

I am at .4V now. The TPS % shows 2%. How do I zero it? I am confident once I get this right I will be able to tune from there.

Are you at 2% with the bike off and just viewing TPS? And you are on .40? Not sure how that could be unless you are off on cable or IAC. Those are the only two things I know that would give you 2% off. I will look at a log file and see if it is so on mine.

You are right once you have this set you will no doubt be able to tune it with your knowledge, it should be a piece of cake. Kinda of a PITA to get there but it sure is hands off once it is dialed in.

Also I have taken to a very SMALL dot of JB Weld on the set screw for IAC to keep it in place I lost my first set screw and have seen the screw vibrate loose after some riding. As I said a toothpick sized dab on one side thread to throttle body plate.

[nw_guy4_fun]

I think I may have the TPS % issue figured out. I had not cycled the run switch when I took that reading. BTW just for the record I had a very smooth good idle even at .58v when I started and this gave me a IAC number that was in the range they specified too. I don't doubt the need to get it at .4 though and glad I did that. I was not aware the IAC had any adjustment. WOW I am learning all sorts of new information. Thanks!
I used the base map that came with the unit and I feel that may have been error number 1. Does anyone have a closer map that I could start with or recomend one of the DTT few they offer. Sorry for the newbie questions, I have read their literature front to back and I have to tell you they sure could use the help of a tech writer. Anyway I am grateful for this forum and all the guys that contribute, it's a bit like the Linux support network.