Understanding SERT & dynos

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Dec 17, 2006 | 12:24 PM

#11

cjuetten

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Joined: Oct 2006

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RE: Understanding SERT & dynos

The best way to understand SERT is to read the manual. It's a 131 pages of real good info on EFI tuning. Its about 2.7 meg. If you can't find a copy. PM me and I'll E-mail it to you.

I guess I'm just old fashion, but just 10 years ago we did our own tuning by checking plugs, exhaust pipes and good old feel of the pants. Now with EFI it 10 times easier to make changes and it seems we have to run to the dyno. It just seems to take the fun out of tuning your bike.

Kinda like taking your prom date to a more expierenced guy cause you want it to be perfect and don't want to screw it up [sm=WTFsgign.gif].

Dec 17, 2006 | 01:27 PM

#12

geargrinder

Road Master

Joined: Dec 2006

Posts: 1,058

Likes: 6

From: Omaha Nebraska

RE: Understanding SERT & dynos

Quote:

ORIGINAL: cjuetten

The best way to understand SERT is to read the manual. It's a 131 pages of real good info on EFI tuning. Its about 2.7 meg. If you can't find a copy. PM me and I'll E-mail it to you.

I guess I'm just old fashion, but just 10 years ago we did our own tuning by checking plugs, exhaust pipes and good old feel of the pants. Now with EFI it 10 times easier to make changes and it seems we have to run to the dyno. It just seems to take the fun out of tuning your bike.

Kinda like taking your prom date to a more expierenced guy cause you want it to be perfect and don't want to screw it up [sm=WTFsgign.gif].

Well, for me personally, I am now older and wiser, my butt dyno lies too much (numb from Harleys) my wife doesn't share in my enjoyment of pulling over every 20 miles and hooking up a laptop, can do in a good dyno shop in a few hours what took me months or years if ever and hard to find guy more experianced then me as it applies to that prom date.

Dec 17, 2006 | 04:57 PM

#13

Indianspringsaz

Road Master

Joined: Sep 2006

Posts: 1,062

Likes: 4

From: Arizona

RE: Understanding SERT & dynos

Quote:

ORIGINAL: bountyhunter

Dyno tuning with a SERT/PCIII, by an experienced PRO, will get you a PRECISE tune. PCIII is by far, the most popular/proven tuning unit. www.fuelmotousa.com for more info. If your dealer can't give ya a straight answer about SERT, what does that tell ya? Find an authorized PCIII tuning center and get some answers. Get a SERT & at most dealers and it will see very limited dyno action if any at all, most just install a set program, they think will be close.

I can tell you one thing, This guy Bountyhunter has lost all credibility. Do not listen to this bench racer. To stay on topic here, get rid of the fuel pac, and get the SERT. It will do everything the PC3 does and more. Much better tool for tuning your bike. The second best is the PC3. So whatever you chose you will be moving up.

Dec 17, 2006 | 05:48 PM

#14

bountyhunter

Banned

Joined: Nov 2005

Posts: 3,499

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From: CANADA

RE: Understanding SERT & dynos

Yer kinda confusing me here MIKE! Roll the dice, pull the trigger on a SERT, hoping your local HD dealer gets it close (for a fair price)...even if they don't have an experienced tuner...or a dyno, for that matter. Call me an "objective" bench racer...maybe thats why I'm still rollin' slow, on this old stock 88"...or am I? There are some very credible, BB bench racers around the forum...that's for sure!

Gimme that 131 page manual to read so I can become a master tuner...like you.

Dec 17, 2006 | 06:14 PM

#15

Indianspringsaz

Road Master

Joined: Sep 2006

Posts: 1,062

Likes: 4

From: Arizona

RE: Understanding SERT & dynos

Well BLAINE, I dont know why you keep saying that you need to have a SERT tuned at a HD dealer. I would never have a dealer do any tuning on my bike. Most of those guys are right out of school.
Did you know that there is different SERT canned programs that you can use if you dont have access to a dyno? Or if you do have a dyno you can really dial it in. With a PC3 thats all you got, canned programs.
Sorry for calling you names BLAINE, I will stop that. But after all this "Crying Wolf" and manic depressive behavior with the Draggin Nuts system, it is hard to read anything you have to say objectivly.
As for the orig. poster, do a little more reaserch, both systems are good, one is just better thats all. Nothing wrong with the PC3, but BLAINE would like you to believe that everything he has is the best. Sorry BLAINE, that is the way it is.

Dec 17, 2006 | 06:22 PM

#16

bountyhunter

Banned

Joined: Nov 2005

Posts: 3,499

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From: CANADA

RE: Understanding SERT & dynos

No need to apologize MIKE...I'm switchin' over to a canned program...right now![sm=bomb.gif]

Dec 17, 2006 | 06:56 PM

#17

Indianspringsaz

Road Master

Joined: Sep 2006

Posts: 1,062

Likes: 4

From: Arizona

RE: Understanding SERT & dynos

Now I am getting Private Messages from BLAINE the Bountyhunter???[:'(]

Dec 17, 2006 | 07:16 PM

#18

bay13

Outstanding HDF Member

Joined: Jan 2006

Posts: 3,116

Likes: 1

From: Northern VA, Madison GA

RE: Understanding SERT & dynos

Quote:

With a PC3 thats all you got, canned programs.

Hope you know this, but the above statement is not true.

I'll tell you my tale, what I've actually done so it's not bench racing. My choice as I saw it was the SERT or the PC III. In order to use either tuner a Dyno was going to have to be done, period. To use a canned program without a dyno tune is good for a while until you can actually get a dyno done, but to avoid the dyno is foolish. I choose the PC III for the following reasons; It was cheaper through Fuelmoto and the warranty was doubled. By using the Pc III I have made it possible for my bike to be tuned by many more facilitys than if I had just the SERT. The SERT has many more adjustments requiring more dyno time to actually make use of the additional ability that it has, and with only intake and exhaust changes made on my bike, having the "superior SERT" was a total waste of money for me. If down the street was a SERT tuner that knew how to work every detail of the SERT on a dyno tune, I might have went with that tuner, however, trying to find that SERT tuner wasn't as easy as finding the PC III certified tuner.

With the PC III, Rinehart slip ons, and the Screamin eagle intake my dnyo numbers tuned out very nice with a 13.7 A/F, 73.15 HP and 78.82 of torque. My gas mileage is 40MPG. To get the same with the SERT would have cost me at least $300 more dollars in Dyno time and another $100 for the SERT. So it's not a matter of what others might consider best, but what your budget will allow and what you are going to do with the product.

69HP and 76TQ were my dyno numbers with the canned program fuelmoto loaded for me, to get me through until I could dyno the bike. My airfuel was rich down low and lean above 4K, but even the canned map was better than the lean tune the bike came with.