Booster Plug

Pete in PA said:
You said yourself you don't know the ST's system. The AF-XIED isn't available for the ST. Doesn't matter how good it is.
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You are right. I don't know how the ST's PGM-FI system works. But knowing how Jens Lyck has misled owners of other bikes which do negate the change with long term fuel trim, I'd want to know more before I "invested" in one for the ST. He disputes the people who have data from a wide band O2 sensor in the tailpipe showing that the change from his device is negated over time. His adherents still believe him and repeat his "logic" to people who have data to the contrary. I gave the AF-XIED as an example of a system that would work and keep working. The fact that it is unavailable for the ST does not make the BoosterPlug any better. I had a BoosterPlug on one of my bikes. I took it off but wouldn't sell it because it isn't worth anything. Maybe it works on the ST. I don't know - and you don't know either. But I do know that it won't be flowing prose from the "inventor" that convinces me.

I believe that your statement that "The ECU wouldn't know the difference." is wrong. There is an O2 sensor in the tailpipe that will sense that the mixture is above the target A/F ratio and report it to the ECU. Your statement that "It wouldn't try to correct the fuel trim because there's no problem," assumes that the ECU would read a rich setting from the O2 sensor and then do nothing about it. Makes you wonder why it bothers to sense it, doesn't it? "it just thinks it's cold out." assumes more cognitive thought than the device is capable of.

Still admitting that I don't know the specifics of the ST EFI system, every closed loop EFI system that I have experience with uses the O2 sensor data as the final arbiter. There was a system from Dobeck that dummies up the O2 sensor data input to make the ECU think all is good and that the vehicle is still in warm-up mode, so it forces the ECU to stay in open loop mode and run the map. In open loop you can do anything you want.

Here is an interesting read from the world of Harley tuning...

https://www.drdyno.com/AIM_2010-09.html
 
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We had a recent new member from one of the cold mountainous regions of Europe, can't remember. A race motor engineer, he has a ST1300 getting 180 hp. He mentioned having a fellow reprogram the 1300s computer, be nice if he would step in here.
 
180hp?! Where's he fitting the turbo? Can't realistically see getting another 50hp by remapping the stock engine. 10? Maybe.

I'd like to hear how he did it as well.
 
Rhubarbray said:
180hp?! Where's he fitting the turbo? Can't realistically see getting another 50hp by remapping the stock engine. 10? Maybe.

I'd like to hear how he did it as well.
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+1. No way he got 40% more HP on an ST13 without significant mechanical work on the motor.

Edit: If it's Lucky Luc, I see he's done some camwork, in addition to ECU.
 

Another video. Delkevic cans sound awesome.
 
T_C said:
IYO!!
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Wait til he irons out the fuel map, then those cans are really gonna sing.

My ST1100 has 14" slash cuts and a highly modified fuel system. At the same time, it's real nice to ride my ST1300 with the stock exhaust system. Either way, I ride with ear plugs, helmet, ATGATT.
 
The lack of Lucky Luc's response , makes his claims to smell a little Fishy to me. Its defiantly possible to tune the engine to that performance , but sadly due to the frame flex , suspension and brakes. It would make it a kamakazi / suicide bike. :mw1:

It would probably cost in the region of £5 k to do also.:think1:

good on him , if he has thou. :headbang:
 
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Ivans Performance Products in Greeneville, SC has been the go to place for ECU reflashing and performance tuning for years, just looked at the website and it says the ST 1300 was discontinued from the list. Probably to many old farts driving them who are'nt interested in more performance to justify.
 
Walleye said:
Ivans Performance Products in Greeneville, SC
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I'm guessing they are also the ones that made the Ivans fuel cut eliminator that has since been discontinued. It had mixed reviews (at best), I think one person on here said it worked.
 
technotony007 said:
The lack of Lucy Luc's response
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That's Lucky Luc to you! :rofl1: Did you contact him?

He did say 'my red ST1300 has 174HP with modified camshafts and a remapped ECU' and that he'd be really busy for awhile so the lack of his response could be he has more important things to do ATM. If somebody speaks his native language (Dutch?) they could research is site. Otherwise I'd wait a little before casting aspersions.
 
lomita said:
Wait til he irons out the fuel map, then those cans are really gonna sing.

My ST1100 has 14" slash cuts and a highly modified fuel system. At the same time, it's real nice to ride my ST1300 with the stock exhaust system. Either way, I ride with ear plugs, helmet, ATGATT.
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I don't see how he can "iron out the fuel map". All this Booster Plug does is make the ECU think the engine is cold, thus making the air/fuel mix richer. There is no RPM/throttle position map. Nothing to tweak.
 
Whooshka said:
I don't see how he can "iron out the fuel map". All this Booster Plug does is make the ECU think the engine is cold, thus making the air/fuel mix richer. There is no RPM/throttle position map. Nothing to tweak.
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Hey, you're catching on. It's a plug and play, non adjustable....advertised to help with hi flow air filters and non stock exhaust systems. However, it's not a retune. His combination of intake/exhaust system mods is beyond the scope of this Booster Plug capability. Beemer was spot on, BTDT, tried it, moved on. Hi 5 Beemer.

Air-fuel ratio, lambda and engine performance – x-engineer.org

Tutorial on what is the air-fuel mixture, stoichiometric ratio and its influence on the performance of an internal combustion engine
x-engineer.org x-engineer.org

Word for the day, exhaustipated...frigging time change.
 
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