Closed Loop Tuning
Cruiser
Joined: Jun 2006
Posts: 249
Likes: 0
From: Northern Illinois
RE: Closed Loop Tuning
ORIGINAL: Redhead1
I was looking at the Daytona Twin Tec website the other day and noted something interesting. Under "Links" there is a pull-down menu of distributors. Zippers is listed there with "private label" in parenthesis. I wonder what Daytona Twin Tec product they distribute under a "private label"?
I was looking at the Daytona Twin Tec website the other day and noted something interesting. Under "Links" there is a pull-down menu of distributors. Zippers is listed there with "private label" in parenthesis. I wonder what Daytona Twin Tec product they distribute under a "private label"?
Advanced
Joined: May 2006
Posts: 52
Likes: 0
From:
RE: Closed Loop Tuning
I wondered about that myself. Talked to the guy at length and he told me it was from a company called Thunderheart performance. Never heard of them myself though. The software also looks a lot different than DTT. But that's just the software. I do know the map is very solid. So far I'm impressed. But maybe I'm just easily impressed. 
Okie
Okie
Ultimate HDF Member
Joined: Feb 2006
Posts: 5,939
Likes: 3
From: TX
RE: Closed Loop Tuning
AWESOME!!!!
Please keep us posted on all aspects of this. We've been eagerly waiting for soome first hand feedback!
What pipes do you have & do they already have 02 bungs installed?
Please keep us posted on all aspects of this. We've been eagerly waiting for soome first hand feedback!
What pipes do you have & do they already have 02 bungs installed?
Novice
Joined: Sep 2006
Posts: 24
Likes: 0
From:
RE: Closed Loop Tuning
I am just installing the o2 bungs in my rinehart pipes, the orginal bung was to for back, twin tec says 2 to 8 inches away from heads so i did the pipe install to see exactly where them to be the best functional and of course the best looking place to put them also, and the ended up closer to the 8" mark. i wanted the close to equal distance and the back pipe determined the front placement. I will keep you guys posted and i will probable take me a week or so to get it installed and running.
thanks.
ps, I am a twin tec dealer and my offer a special deal to forum helpers If it works as good as it should.
thanks.
ps, I am a twin tec dealer and my offer a special deal to forum helpers If it works as good as it should.
Novice
Joined: Sep 2006
Posts: 24
Likes: 0
From:
HD Forum Stories
The Best of Harley-Davidson for Lifelong Riders
10 Worst Harley-Davidson Motorcycles Ever
Pouria Savadkouei
Killer Custom's Jail Break Is The Breakout That Refused to Blend In
Verdad Gallardo
Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?
Verdad Gallardo
Harley-Davidson Reveals Super Cool Cafe Racer Concept
Verdad Gallardo
Engraved Rebellion: Inside Bundnerbike's Glam Rock II
Verdad Gallardo
10 Motorcycles You Should Never Buy
Joe Kucinski
10 Things Harley-Davidson Needs to Fix in 2026
Verdad Gallardo
Southpaw Super Glide: A Left-Hand-Drive 1979 Harley FXE Built to Fit the Rider
Verdad Gallardo
The Best and Worst Harley-Davidson Moves of 2025
Verdad Gallardo
Advanced
Joined: Jul 2006
Posts: 58
Likes: 0
From:
RE: Closed Loop Tuning
I used the stock O2 position on the Rineharts and put the second bung under the rear pipe just by the primary and have been riding and watching for a couple of months now with no ill effects. I figure that I would start out with one less hole and move the sensor it things complained or didn't work. The WEGO seems happy and the Twin Tec hasn't raised it's hand to complain. The engine fires first time, everytime.(ok I've got a bit of adjusting left on a hot start (temp table)...still have to open the throttle a bit...I've just been lazy. Maybe this weekend)
I'm not recommending the offset positions...just reporting that it doesn't seem to mind. Performance and economy is good.
I'm not recommending the offset positions...just reporting that it doesn't seem to mind. Performance and economy is good.
Novice
Joined: Sep 2006
Posts: 24
Likes: 0
From:
RE: Closed Loop Tuning
I have the Rinehart pipes and put both O2s about 8" away from the heads (twin tec recomends 2-8 inches), and so far so good the system is working and i am dialing it in, I would prefer thay made a instructional video though.