Topic: Throttle by Wire acceleration lag; does the V&H ThrottlePak work?? (Read 8893 times)

RoadKingHog · « **on:** September 14, 2011, 11:06:14 PM »

I have an 08 FLSTSE. From day one I noticed a definite throttle lag particularly from a standstill (intersection, etc.) or when cruising around town at 40 -50 MPH and open the throttle to pass, etc. (2008 was the first year with the throttle by wire, so no prior history.) The acceleration lag was minimized somewhat with the Mastertune TTS EFI software but it's still definitely there. It feels like the bike "chokes".

I was recently talking with a local custom builder who mentioned the Vance & Hines ThrottlePak specifically designed to eliminate throttle lag. The ThrottlePak is designed to interface between the OEM throttle harness and throttle body. It sounds simple enough, but I'm a little skeptical whether it works, or whether I may be introducing other glitches into the mix.

I wonder if anyone has had any experience with the device - pro/con?? Any feedback will be appreciated.

thanks,
Dan

thanks,
Dan

PASN YU · « **Reply #1 on:** September 15, 2011, 08:31:34 AM »

I'm going to buy the ThrottlePak this weekend to try it out. I'll let you know how well it works.

grc · « **Reply #2 on:** September 15, 2011, 08:33:42 AM »

Quote from: RoadKingHog on September 14, 2011, 11:06:14 PM

I have an 08 FLSTSE. From day one I noticed a definite throttle lag particularly from a standstill (intersection, etc.) or when cruising around town at 40 -50 MPH and open the throttle to pass, etc. (2008 was the first year with the throttle by wire, so no prior history.) The acceleration lag was minimized somewhat with the Mastertune TTS EFI software but it's still definitely there. It feels like the bike "chokes".

I was recently talking with a local custom builder who mentioned the Vance & Hines ThrottlePak specifically designed to eliminate throttle lag. The ThrottlePak is designed to interface between the OEM throttle harness and throttle body. It sounds simple enough, but I'm a little skeptical whether it works, or whether I may be introducing other glitches into the mix.

I wonder if anyone has had any experience with the device - pro/con?? Any feedback will be appreciated.

thanks,
Dan

thanks,
Dan

Dan, check out some of the previous threads on the Throttle Pak. You might also want to contact the TTS folks and see if there isn't a simple adjustment in the TTS software that will take care of your problem without having to buy another solution.

http://www.cvoharley.com/smf/index.php?topic=61383.0

http://www.cvoharley.com/smf/index.php?topic=63517.0

http://www.cvoharley.com/smf/index.php?topic=60867.0

http://www.cvoharley.com/smf/index.php?topic=61569.0

http://www.cvoharley.com/smf/index.php?topic=60121.0

Jerry

FNGw/08SERK · « **Reply #3 on:** September 15, 2011, 10:06:31 AM »

Throttle sensitivity can be adjusted in the TTS Throttle Blade Control Table fwiw

RoadKingHog · « **Reply #4 on:** September 15, 2011, 10:21:34 AM »

Thanks Jerry. I'll ask around regarding the Mastertune re-tune. I had the bike originally tuned at Gator Harley in Leesburg. The person on the dyno was trained by 'Doc' with Doc's Dyno Tune (Clermont) - so I believe I had someone pretty knowledgeable and experienced dialing in the various RPM ranges. I was particularly focused on eliminating the throttle lag (and making sure the bike did not run lean.) I was told they were knew my concerns and did the best the could but conceded there remained some lag.

Very frustrating. The best bike out there is my wife's 2010 Convertible Softail CVO with old fashion throttle cables. What a difference!! (Later year Softail Convertible CVO's have the TBW feature.)

Dan

Steve Cole · « **Reply #5 on:** September 15, 2011, 11:35:37 AM »

If I were in your position I would contact Doc @ Doc's performance tuning as he can adjust it out with the TTS for you. As had been said before it is all adjustable within Mastertune.

RoadKingHog · « **Reply #6 on:** September 15, 2011, 01:22:16 PM »

Thanks Steve. When I discussed with him before, he led me to believe it would take full dyno run to attempt to "re-map". (I didn't get the feeling it would be a sure thing if we did a "re-do".)

Steve Cole · « **Reply #7 on:** September 15, 2011, 04:41:47 PM »

If you like send me a copy of your calibration and I can see about making an adjustment or two to see if we can make it better.

RoadKingHog · « **Reply #8 on:** September 16, 2011, 11:34:17 AM »

Thanks. Sounds good. I'll have to swing by the dealership and hope they still have me on file and get a copy of the software settings copied onto a flash drive.

Do you have an alternate e-mail address available??

Dan

Midnight Rider · « **Reply #9 on:** September 16, 2011, 12:00:38 PM »

You should have gotten the TTS "black box" and associated cables when you got the tune...you paid for them. Or at least the box, if not the cables...it's married to your ECM. If so, it's pretty simple to hook up the laptop and upload what's in the ECM.

dave29 · « **Reply #10 on:** September 16, 2011, 12:47:18 PM »

I installed the V&H Throttle Pac on my 09 CVO Ultra. It works!

LovemyCVOgirl · « **Reply #11 on:** September 16, 2011, 09:46:17 PM »

Yes, the V&H throttle pac works GREAT! I installed one on my 2012 FLHXSESG and the noticeable lag that I had on my 2009 SG was a Hugh improvement. Pricey but well worth the money.

dartman · « **Reply #12 on:** September 17, 2011, 03:58:55 PM »

Quote from: LovemyCVOgirl on September 16, 2011, 09:46:17 PM

Yes, the V&H throttle pac works GREAT! I installed one on my 2012 FLHXSESG and the noticeable lag that I had on my 2009 SG was a Hugh improvement. Pricey but well worth the money.

Works great does just what they say it will, Simple Install, Mine was $177.00 ive seen people buy baby clothes and Tail Lights for twice that amount, lol

lonewolf55 · « **Reply #13 on:** September 17, 2011, 10:45:20 PM »

Quote from: TCnBham on September 16, 2011, 12:00:38 PM

You should have gotten the TTS "black box" and associated cables when you got the tune...you paid for them. Or at least the box, if not the cables...it's married to your ECM. If so, it's pretty simple to hook up the laptop and upload what's in the ECM.

That won't work as you will only be able to save it as a MTE file. You need the finished map and the original MTE file from whoever tuned the bike.

1 Orange Eagle · « **Reply #14 on:** September 24, 2011, 07:26:47 PM »

Just put one on 09 CVO. What a difference! IMO money well spent.

RoadKingHog · « **Reply #15 on:** September 25, 2011, 08:16:17 AM »

What type ECM Fuel Management software did you have programmed (if any) prior to adding the Throttle Pak?

thanks,
Dan

dartman · « **Reply #16 on:** September 25, 2011, 09:22:30 PM »

Quote from: RoadKingHog on September 25, 2011, 08:16:17 AM

What type ECM Fuel Management software did you have programmed (if any) prior to adding the Throttle Pak?

thanks,
Dan

Dan, If you already have a tuner the throttle pak would be redundant, IMHO they were designed for a near stock bike to help improve drivability, Im running FL-XIEDS, Throttle Pack and KN replacement Air Filter, the improvement is significant my Butt Dyno rates the increase in drivability at low speeds and cruising as 5 star not really concerned about graph numbers, I seldom run over 4,000 rpms.

RoadKingHog · « **Reply #17 on:** September 26, 2011, 08:29:17 AM »

Thanks Dartman, that's pretty much what I'm discovering. The ThrottlePak works, but if I have the MasterTune TTS installed, a tuner 're-map' should be able to eliminate the throttle lag. But - it didn't when I had it done a couple of years ago.

Unfortunately I misplaced my software disc and cables so I'm not able to download a current ECM map off my module to send Steve Cole for adjustment.

Dan

CVOgliderider · « **Reply #18 on:** September 26, 2011, 10:43:39 PM »

Just did it on my 11 CVO Ultra... Yes it works

SIX38 · « **Reply #19 on:** October 01, 2011, 03:30:03 AM »

To our many experts,
I have TTS installed on my 09 SEUC. 12000 miles of smooth power at all throttle positions. But recently have experienced an occasional lag or hesitation when rolling the throttle off idle. Could this be a problem with the TBW's Twist Grip Sensor itself?
Thanks,
Tom P.

HOGMIKE · « **Reply #20 on:** October 02, 2011, 01:55:19 PM »

Quote from: SIX38 on October 01, 2011, 03:30:03 AM

To our many experts,
I have TTS installed on my 09 SEUC. 12000 miles of smooth power at all throttle positions. But recently have experienced an occasional lag or hesitation when rolling the throttle off idle. Could this be a problem with the TBW's Twist Grip Sensor itself?
Thanks,
Tom P.

Interesting!
Has ANYTHING else changed on the bike? New parts? Gas? Spark plugs? ANYTHING?
Could be a problem with TBW, but, surely just guessing at this point.
Check all the obvious things first, before replacing parts.

SIX38 · « **Reply #21 on:** October 03, 2011, 11:23:15 AM »

No changes HOGMIKE. Problem did start after a 870 mile ride to the Maggie Valley NC GTG and I hit quite a bit rain on the way. Other than coming off idle, motor is running as smooth as ever.
Tom P.
( We can ride these bikes in the rain, right???)

Author Topic: Throttle by Wire acceleration lag; does the V&H ThrottlePak work?? (Read 8893 times)