Terminal Velocity vs. Thundermax Closed loop
Road Master
Joined: Feb 2007
Posts: 1,205
Likes: 0
From: Arizona
RE: Terminal Velocity vs. Thundermax Closed loop
I currently run the Terminal Velocity II. I bought it because I wanted a unit that once installed I could forget about it. Is it perfect, I don't think so. But then again I am very **** about these things. So I seriously considered a Thundermax. Well after reading for days threads about installation, tweaking, decel problems, promised firmware fixes forth coming. I would describe the Thundermax as anything but easy. I don't understand the purpose of having an autotune feature, if the owner has to constantly tweak his settings to get the thing to work. I see multiple posts about people whose fuel mileage has gotten worse as they put more miles on the unit. Plus a list of other problems that go unanswered up here. You know $800 is a lot of money to spend on a PCIII with O2 sensors. Thats no typo I did say a PCIII, because I fail to see the difference between the two of them. They both require maps, they both require a laptop and software, and require a lot of tweaking just to get it running.
I just want a unit that plugs in and makes the bike run good without driving me crazy.
I just want a unit that plugs in and makes the bike run good without driving me crazy.
Tourer
Joined: Jun 2007
Posts: 356
Likes: 1
From: Leicestershire, UK
RE: Terminal Velocity vs. Thundermax Closed loop
This thread is a great example of how useful the discussions on this forum can be. At the beginning of the thread we have two forum members each trying to decide which of two possible options would be the right one for them; TMax or TV II? By the end of it, following good information from various contributors, they have each made the decision they feel will be for them. Interestingly, they've eachdecided ona different option: Ultra61 the TMax; Lano the TV II. Two different outcomes but, hopefully, two equally happy people at the end of it.
Now, if I could just find anyone out there who has a Terminal Velocity II on an '07 883 Sportster and could tell me if it works ...
Now, if I could just find anyone out there who has a Terminal Velocity II on an '07 883 Sportster and could tell me if it works ...
Road Captain
Joined: Nov 2007
Posts: 697
Likes: 1
From: Just west of Tahoe
RE: Terminal Velocity vs. Thundermax Closed loop
OK. I'll jump in. I dropped a set of 37H cams, K&N, Rinehart 2:1 and a Thundermax in 3 weeks ago. I loaded the cosest mao I could find and have been riding ever since. I leave for work at 0400 when it's anywhere from 25 to 35 drgrees. I come home in the afternoons or early evening whenit's anywhere from 45 to 60 degrees. No problems at all. I like the software because it gives me the opportunity to go in and adjust timing and AFR if I want to. Haven't done it yet and my Road Glides is running smooth and sweet!
Thread Starter
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Stellar HDF Member
Joined: Oct 2007
Posts: 2,314
Likes: 31
From: Eastern PA
RE: Terminal Velocity vs. Thundermax Closed loop
ORIGINAL: Simon UK
This thread is a great example of how useful the discussions on this forum can be. At the beginning of the thread we have two forum members each trying to decide which of two possible options would be the right one for them; TMax or TV II? By the end of it, following good information from various contributors, they have each made the decision they feel will be for them. Interestingly, they've eachdecided ona different option: Ultra61 the TMax; Lano the TV II. Two different outcomes but, hopefully, two equally happy people at the end of it.
Now, if I could just find anyone out there who has a Terminal Velocity II on an '07 883 Sportster and could tell me if it works ...
This thread is a great example of how useful the discussions on this forum can be. At the beginning of the thread we have two forum members each trying to decide which of two possible options would be the right one for them; TMax or TV II? By the end of it, following good information from various contributors, they have each made the decision they feel will be for them. Interestingly, they've eachdecided ona different option: Ultra61 the TMax; Lano the TV II. Two different outcomes but, hopefully, two equally happy people at the end of it.
Now, if I could just find anyone out there who has a Terminal Velocity II on an '07 883 Sportster and could tell me if it works ...
Advanced
Joined: Jan 2008
Posts: 64
Likes: 0
From:
RE: Terminal Velocity vs. Thundermax Closed loop
helllo from sunny california the land of emission restrictions;
i personally think a fuel management system is a mather of choice.I prefer the TMAT due to the many options as far as mods.We all know having a harley is all about changes as time goes on and money comes in.My 07 SG has never run better.B-4 with stock ecm the bike was very hot,it surge and also it was a great nut roaster.Now with the TMAT the bike runs a hell of a lot better,cool and no surge.Of course with the performance comes a little sacrifice with gas mpg's.B4 my mileage was aprox40.2 per gallon.Now it drop to aprox 30-32 in town and close to 38 or 39 hwy.Again i ride for pleasure and fun i do not pay attention to mileage other wise i will stay with the stock ecm.Also the inherited problem with the TMAT is a serious and contagious urge to twist the throttle(that's also the reason for the drop in fuel efficiency).Anyhow is nice to be able to be part of this forum.Thank's[8D]
i personally think a fuel management system is a mather of choice.I prefer the TMAT due to the many options as far as mods.We all know having a harley is all about changes as time goes on and money comes in.My 07 SG has never run better.B-4 with stock ecm the bike was very hot,it surge and also it was a great nut roaster.Now with the TMAT the bike runs a hell of a lot better,cool and no surge.Of course with the performance comes a little sacrifice with gas mpg's.B4 my mileage was aprox40.2 per gallon.Now it drop to aprox 30-32 in town and close to 38 or 39 hwy.Again i ride for pleasure and fun i do not pay attention to mileage other wise i will stay with the stock ecm.Also the inherited problem with the TMAT is a serious and contagious urge to twist the throttle(that's also the reason for the drop in fuel efficiency).Anyhow is nice to be able to be part of this forum.Thank's[8D]
Thread Starter
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Stellar HDF Member
Joined: Oct 2007
Posts: 2,314
Likes: 31
From: Eastern PA
RE: Terminal Velocity vs. Thundermax Closed loop
It is nice to have ya on the forum...welcome from PA...I do like my tmax, I am thinking of a HQ 103 kit now, will it ever end...
ORIGINAL: theiceman
helllo from sunny california the land of emission restrictions;
i personally think a fuel management system is a mather of choice.I prefer the TMAT due to the many options as far as mods.We all know having a harley is all about changes as time goes on and money comes in.My 07 SG has never run better.B-4 with stock ecm the bike was very hot,it surge and also it was a great nut roaster.Now with the TMAT the bike runs a hell of a lot better,cool and no surge.Of course with the performance comes a little sacrifice with gas mpg's.B4 my mileage was aprox40.2 per gallon.Now it drop to aprox 30-32 in town and close to 38 or 39 hwy.Again i ride for pleasure and fun i do not pay attention to mileage other wise i will stay with the stock ecm.Also the inherited problem with the TMAT is a serious and contagious urge to twist the throttle(that's also the reason for the drop in fuel efficiency).Anyhow is nice to be able to be part of this forum.Thank's[8D]
helllo from sunny california the land of emission restrictions;
i personally think a fuel management system is a mather of choice.I prefer the TMAT due to the many options as far as mods.We all know having a harley is all about changes as time goes on and money comes in.My 07 SG has never run better.B-4 with stock ecm the bike was very hot,it surge and also it was a great nut roaster.Now with the TMAT the bike runs a hell of a lot better,cool and no surge.Of course with the performance comes a little sacrifice with gas mpg's.B4 my mileage was aprox40.2 per gallon.Now it drop to aprox 30-32 in town and close to 38 or 39 hwy.Again i ride for pleasure and fun i do not pay attention to mileage other wise i will stay with the stock ecm.Also the inherited problem with the TMAT is a serious and contagious urge to twist the throttle(that's also the reason for the drop in fuel efficiency).Anyhow is nice to be able to be part of this forum.Thank's[8D]
Road Master
Joined: Oct 2005
Posts: 850
Likes: 0
RE: Terminal Velocity vs. Thundermax Closed loop
Unfortunately neither of these is available for my bike yet. Looks like it should be soon for the Terminal Velocity II in terms of throttle by wire - but I wonder if it will also work with ABS and a 110 motor. Thunder Max has less info. about availability for 08 bikes. Sounds like the install for the TVII is only one O2 sensor and the box is inline with the stock ECM. Is the TMax a different ECM as well? My main purpose at looking at this stuff is that the bike runs lean here in NCalif. and I would like it to run richer and cooler. Anybody have advice for me. My dealer is pushing the PCIII
Tourer
Joined: Oct 2007
Posts: 360
Likes: 0
From: Huntington Beach, CA
RE: Terminal Velocity vs. Thundermax Closed loop
I installedthe T-Max and 204 camsabout 400 miles ago(goodbye warranty) and I'm amazed at how good this thing runs.
Now I'm thinking of doing a BB103 and going to even bigger cams, and I won't have to do any dyno runs. lol
Now I'm thinking of doing a BB103 and going to even bigger cams, and I won't have to do any dyno runs. lol
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Road Master
Joined: Feb 2007
Posts: 1,205
Likes: 0
From: Arizona
RE: Terminal Velocity vs. Thundermax Closed loop
I'm no longer running the TVII FM220Q model on my 07 SG. I've replaced it with Nightriders XIED. You couldn't ask for a simpler device, and it truely works.
Now my Bike runs nice and cool, and has great acceleration. For $100 how can you go wrong? Best Bang For The Buck.
Now my Bike runs nice and cool, and has great acceleration. For $100 how can you go wrong? Best Bang For The Buck.
Tourer
Joined: Apr 2006
Posts: 440
Likes: 0
From:
RE: Terminal Velocity vs. Thundermax Closed loop
Then there are those who can't get their mileage out of the 30's bracket. Decel popping that requires another firmware update. A number of people who aren't computer literate that are having problems cause they can't figure out how to set it up properly. Turning the engine on and off and on and off, running it till it heats up to 289 degrees and other steps that must be properly administered for the unit to function properly. Not exactly what I call automatic.
I'm not knocking it