Dyno tune and the SEPST
Grand HDF Member
Joined: May 2008
Posts: 4,585
Likes: 673
From: Rolla
HOWEVER, since it is street legal it has much more limited tuning options vs the SEPST (Screamin Eagle Pro Super Tuner)
As stated in the Screamin Eagle parts catalog:
Note: Street Tuner permits limited tunability within the emissions range
The SEPST (Screamin Eagle Pro Super Tuner) is not EPA/CARB compliant.
But it has a pretty much unlimited range of tuning options.
Extreme HDF Member
Joined: Nov 2007
Posts: 14,670
Likes: 139
From: East of the Sun, West of the Moon
Just a note or so. Dyno tuning requires the use of some expensive equipment and suitable space. So many HD dealers do not do dyno tuning. But if you have the SEPST some will load factory calibrations (maps) and refine the tune by doing test rides using the SEPST "Smart Tune" feature. Either way, the results will depend on the skill of the person doing the tuning. And just because it's the dealership doing the tuning doesn't mean that they will do a lousy job. That's hype. They are no different than anybody else. So do the research first.
Dyno sheets mean squat if the bike isn't tuned right. I highly suggest you post the question of reputability on your specific dealer you're interested in over in the Tuning/ECM section. There are lots of folks who know a lot about tuning there and there are a few that know the reputation of most of the dealers and dyno tuners around the country.
Ultimate HDF Member
Joined: Jul 2011
Posts: 5,477
Likes: 5
From: New Braunfels, Texas
Dyno sheets mean squat if the bike isn't tuned right. I highly suggest you post the question of reputability on your specific dealer you're interested in over in the Tuning/ECM section. There are lots of folks who know a lot about tuning there and there are a few that know the reputation of most of the dealers and dyno tuners around the country.
Road Warrior
Joined: Apr 2010
Posts: 1,648
Likes: 37
From: Monroe, Louisiana
SERT is Screaming Eagle Race tuner not sold any more.
SEST is Screaming Eagle street tuner
SEPST is Screaming eagle Pro super tuner
If you get the SEPST you can use the canned maps that come on the CD. They are very good if you are using Screaming Eagle parts. If you are going to load programs yourself you need the cable kit also. You may also have to purchase the CD as last year it didn't come with the tuner. I don't see it listed separately in the SE catalog this year. The CD has the Super Tuner software and maps on it. You can also get the training DVD and it will teach you how to do your own tuning. Not Dyno tuned but plenty good enough for Stage 1 through 4. I personally prefer the Power Vision as you don't have to use a lap top to install new programs and make some tuning changes. It holds 6 maps. You can also do autotune without the laptop if you have the PV hooked to the bike. If you can use a PV you can use a SEPST as main tables are the same in each tuner. The PV also comes with cd and all cables. It all depends on what you want. If you plan to change gearing you will need something besides the SE tuners as they won't adjust speedo.
SEST is Screaming Eagle street tuner
SEPST is Screaming eagle Pro super tuner
If you get the SEPST you can use the canned maps that come on the CD. They are very good if you are using Screaming Eagle parts. If you are going to load programs yourself you need the cable kit also. You may also have to purchase the CD as last year it didn't come with the tuner. I don't see it listed separately in the SE catalog this year. The CD has the Super Tuner software and maps on it. You can also get the training DVD and it will teach you how to do your own tuning. Not Dyno tuned but plenty good enough for Stage 1 through 4. I personally prefer the Power Vision as you don't have to use a lap top to install new programs and make some tuning changes. It holds 6 maps. You can also do autotune without the laptop if you have the PV hooked to the bike. If you can use a PV you can use a SEPST as main tables are the same in each tuner. The PV also comes with cd and all cables. It all depends on what you want. If you plan to change gearing you will need something besides the SE tuners as they won't adjust speedo.
Last edited by ke5rbd; Sep 15, 2013 at 07:51 PM.
Thread
Thread Starter
Forum
Replies
Last Post
anothernewb
General Harley Davidson Chat
20
Apr 11, 2016 09:50 AM
