To Thundermax or Not
Thread Starter
|
Stage II
Joined: Sep 2010
Posts: 2
Likes: 0
To Thundermax or Not
I'm wondering if it would be worththe money to purchase the thundermax or not. I have an '01 stoftail standard and i'm finally going to be able to start wrenching on it. I want to put the BUB exhaust on with the screaming eagle air breather kit. So, the question is will it be worth it or should i go with a power commander or something else. Any help would be great and apprectiated.
Tourer
Joined: Nov 2007
Posts: 491
Likes: 5
From:
I had a Thundermax on mine and it was giving me too many issues. From the beginning I had the "known issue" where the speedo loses contact with the ECM and the only "workaround" for that from Zipper's is to cycle the ignition switch. I had a couple of other issues like an off idle issue that I couldn't resolve and also had my ignition switch go out on me from an over current issue (not sure if this was a TM issue), but required replacing the ignition switch, plus the bike broke down on my in the middle of rush hour traffic. For me I lost trust in the TM unit, and no one could look at it cuz it you're no longer using the Harley ECM. Zipper's didn't seem to be much help either.
A lot of people have had good luck with the TM, but I didn't so I just couldn't keep a unit on my bike that is "flaky". I recently took out the TM and replaced my stock ECM, and added the MasterTune to it. Even by just replacing with the stock ECM, my idle issue immediately went away. Maybe my bad luck with aftermarket, but I don't know.
Good luck in your choice.
A lot of people have had good luck with the TM, but I didn't so I just couldn't keep a unit on my bike that is "flaky". I recently took out the TM and replaced my stock ECM, and added the MasterTune to it. Even by just replacing with the stock ECM, my idle issue immediately went away. Maybe my bad luck with aftermarket, but I don't know.
Good luck in your choice.
Road Captain
Joined: Jul 2007
Posts: 620
Likes: 2
From: NJ
I put a TM on my bike about three months ago and and I'm very happy with the performance. I did have an issue last week where the it lost the speedometer calibration for no apparent reason. My indy who sold it to me and installed it reset the thing on Friday and all seems good so far. He said that he'd replace the unit if it happens again. I'm a firm believer that nothing happens without a cause, and things don't fix themselves, so I'm just waiting for the problem to reappear.
Trending Topics
Tourer
Joined: Jun 2010
Posts: 442
Likes: 0
I think there pretty pricey, if it's a bike your gonna keep for awhile I would, but if not I would do the Fuel Moto preloaded PCIII. More than half the price.
HD Forum Stories
The Best of Harley-Davidson for Lifelong Riders
7 Surprising Harley-Davidson Products that Are Not Motorcycles
Verdad Gallardo
8 Best Harley-Davidson Motorcycles Ever
Pouria Savadkouei
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
Ultimate HDF Member
Joined: Oct 2007
Posts: 5,257
Likes: 6
From: Leander Texas
I put a TM on my bike about three months ago and and I'm very happy with the performance. I did have an issue last week where the it lost the speedometer calibration for no apparent reason. My indy who sold it to me and installed it reset the thing on Friday and all seems good so far. He said that he'd replace the unit if it happens again. I'm a firm believer that nothing happens without a cause, and things don't fix themselves, so I'm just waiting for the problem to reappear.
