EK1Pro Tune - Sixth Element

[Yves998]

Yves998 cleared it up, but just to be hyper clear:

Full Tune = ECU Flash which controls ignition, boost, lambda, etc
Backend = ECU flash which controls ignition, lambda, etc but leaves boost control to a piggyback for more "on the fly" adjustment

I’m wondering if you would like to release a BEF that has flat boost at 12-14 psi. Fighting with factory boost tapering is still annoying with JB4.

 

[mariangt82]

So…ive read a long time now and have seen some real nice input.

@Yves seems to know what hes talking about!

For the EU guy in here:

Ive attached a BMS BEF map4 log with german RON102 + Race Gas Original (1can at 30l [8gal]) so far away from maxed out…

I an going for my map6 + Race Gas Ultra as soon as ECU has adapted…

 

[Pandamonium]

@StingerbyAdoom Do you happen to know how to write the TCU with the EK1? I cant find any videos for it. I just purchased it but Idk how to install it. Thank you

 

[G70LEbyAdoom]

@StingerbyAdoom Do you happen to know how to write the TCU with the EK1? I cant find any videos for it. I just purchased it but Idk how to install it. Thank you

Yes. Just select the write function, then Choose the TCU file, then let her rip. I just flashed mine earlier today. Its that simple.

 

[Pandamonium]

Awesome. Thank you!

 

[chxei]

Hey guys, what tcu tune does exactly? Is it BEF like ecu? Line pressure increase? Auto upshifting at lower rpm? Is there an option to leave stock launch control logic unchanged(for the car's longevity)? I don't own a device so I can't really see files on site for my vehicle, that's why I'm asking.

 

[Yves998]

Hey guys, what tcu tune does exactly? Is it BEF like ecu? Line pressure increase? Auto upshifting at lower rpm? Is there an option to leave stock launch control logic unchanged(for the car's longevity)? I don't own a device so I can't really see files on site for my vehicle, that's why I'm asking.

There are options for factory LC or boost LC. I would suggest you to go for factory LC + brake boost harness if you seeking for 0-60 time. TCU LC is never as consistent as brake snip LC anyway. Auto shift at just a touch below 6000 which is good for all tunes. Line pressure is adjusted for sure and you can feel it shifts quicker pretty obvious. The biggest advantage of SXTH TCU comparing with LOZIC one for me is it feels stock for daily driving, in a good way. My LOZIC tcu just feels jerky, it kicks my back for downshift/upshift.

 

[cLaw]

There are options for factory LC or boost LC. I would suggest you to go for factory LC + brake boost harness if you seeking for 0-60 time. TCU LC is never as consistent as brake snip LC anyway. Auto shift at just a touch below 6000 which is good for all tune. Line pressure is adjusted for sure and you can feel it shifts quicker pretty obvious. The biggest advantage of SXTH TCU comparing with LOZIC one for me is it feels stock for daily driving, in a good way. My LOZIC tcu just feels jerky, it kicks my back for downshift/upshift.

What would you recommend for 1/4m times? What is the difference between boost LC and brake boost harness?

 

[Yves998]

What would you recommend for 1/4m times? What is the difference between boost LC and brake boost harness?

TCU LC has a small delay on how the boost was building and it makes it pretty difficult to nail the perfect timing especially for quarter mile track. For brake boost you just simply fool the car to think you’re moving under brake, hence the boost is building at a linear pace as sooner as you floored both pedals.

There would be minimal to none real life 60ft and 0-60 gain when comparing the best launch of the two. But the easiness of brake snip to nail down the perfect 60ft is what you looking for. I’m able able to have 50% chance to do a 1.75s 60ft and 20% for 1.67s 60ft before the brake snip. Now after the brake snip 1.67s 60ft is like 80% of chance.

 

[cLaw]

TCU LC has a small delay on how the boost was building and it makes it pretty difficult to nail the perfect timing especially for quarter mile track. For brake boost you just simply fool the car to think you’re moving under brake, hence the boost is building at a linear pace as sooner as you floored both pedals.

There would be minimal to none real life 60ft and 0-60 gain when comparing the best launch of the two. But the easiness of brake snip to nail down the perfect 60ft is what you looking for. I’m able able to have 50% chance to do a 1.75s 60ft and 20% for 1.67s 60ft before the brake snip. Now after the brake snip 1.67s 60ft is like 80% of chance.

Sorry for the endless questions but how would this hold up in drag racing? How long can you hold boost before it becomes an issue? Usually around 3 or so seconds people start to "burn down" but have you had any experience/know anything about that?

Thanks again man you're a huge help!

 

[Seeing_Red]

Sorry for the endless questions but how would this hold up in drag racing? How long can you hold boost before it becomes an issue? Usually around 3 or so seconds people start to "burn down" but have you had any experience/know anything about that?

Thanks again man you're a huge help!

With the TCU launch its much less than 3 seconds before beginning to burn out.. if you read back through the thread there's some people with experience at the drag strip using it though.

From what I remember, guys will floor it the moment the first yellow drops and the timing works out fairly well launching on green.

 

[Yves998]

Sorry for the endless questions but how would this hold up in drag racing? How long can you hold boost before it becomes an issue? Usually around 3 or so seconds people start to "burn down" but have you had any experience/know anything about that?

Thanks again man you're a huge help!

It wouldn’t be an issue if you keep your eyes on rpm and never let it pass 2500rpm too much for either tcu or brake snip. You shouldn’t need that much boost at launch when you are trying to set the record anyway. If you are able to launch harder and harder then the problem would be your ecu tune is slow and not powerful enough to brake traction.

For the 1/4 Christmas trees, I think most of us are talking about pro trees which is 3 yellow together then green. When doing this with a brake snip launch, floor the gas pedal as soon as you see yellow and let go at green pretty much guarantees a 1.7x 60ft, hence you can enjoy racing the other lane for real.

It would be another frustrating story when you are using TCU LC tho. The TCU builds boost so slow that if you launch it as what I said above, you’ll probably be looking at 1.9x 60ft at best due to the delay of boost building. You’ll have to ignore the RT and build your own boost to chase for record while watching the other cars fly away. Only able to race yourself is boring and frustrating for sure.

 

[cLaw]

It wouldn’t be an issue if you keep your eyes on rpm and never let it pass 2500rpm too much for either tcu or brake snip. You shouldn’t need that much boost at launch when you are trying to set the record anyway. If you are able to launch harder and harder then the problem would be your ecu tune is slow and not powerful enough to brake traction.

For the 1/4 Christmas trees, I think most of us are talking about pro trees which is 3 yellow together then green. When doing this with a brake snip launch, floor the gas pedal as soon as you see yellow and let go at green pretty much guarantees a 1.7x 60ft, hence you can enjoy racing the other lane for real.

It would be another frustrating story when you are using TCU LC tho. The TCU builds boost so slow that if you launch it as what I said above, you’ll probably be looking at 1.9x 60ft at best due to the delay of boost building. You’ll have to ignore the RT and build your own boost to chase for record while watching the other cars fly away. Only able to race yourself is boring and frustrating for sure.

Thanks to both you and @Seeing_Red

Seems like the brake snip launch is by far the better option. Much appreciated.

 

[Seeing_Red]

Thanks to both you and @Seeing_Red

Seems like the brake snip launch is by far the better option. Much appreciated.

Yves may be able to speak on it with more experience but the only negative on the brake snip mod in my opinion is the intrusiveness of it because you have to modify the wiring harness to block the brake signal.

Also, maybe it's figured out better now but it seemed like there was some issues with consistency with the brake snip mod when it first was discovered as sometimes the launches would be more aggressive than others. (The legend of the "beast mode" launch lol)

I personally went with a TCU launch control just because I'm not planning on going to the strip with my car. I just enjoy hurting peoples feelings on the street and the majority of the time that happens as a roll race. That and also I had some mild concern with physically "snipping" the brake pedal signal wire in my vehicle.

For me, the TCU launch is just good fun when I want to leave a stop light with some pizzazz...

P.s I'm not sure if you have a RWD or AWD model, but if you're RWD then Nathan from SXTH actually has the ability to set up an ECU launch control for you. With ECU launch, the car will use launch control same as factory but actually build boost/higher RPM. That to me is the ideal option but it's not something that he's been able to figure out on the AWD cars as of yet.

 

[cLaw]

Yves may be able to speak on it with more experience but the only negative on the brake snip mod in my opinion is the intrusiveness of it because you have to modify the wiring harness to block the brake signal.

Also, maybe it's figured out better now but it seemed like there was some issues with consistency with the brake snip mod when it first was discovered as sometimes the launches would be more aggressive than others. (The legend of the "beast mode" launch lol)

I personally went with a TCU launch control just because I'm not planning on going to the strip with my car. I just enjoy hurting peoples feelings on the street and the majority of the time that happens as a roll race. That and also I had some mild concern with physically "snipping" the brake pedal signal wire in my vehicle.

For me, the TCU launch is just good fun when I want to leave a stop light with some pizzazz...

P.s I'm not sure if you have a RWD or AWD model, but if you're RWD then Nathan from SXTH actually has the ability to set up an ECU launch control for you. With ECU launch, the car will use launch control same as factory but actually build boost/higher RPM. That to me is the ideal option but it's not something that he's been able to figure out on the AWD cars as of yet.

Good to note, I will probably look around and talk with more people who have went for records/to the strip and see what is preferred and what not. I do have the AWD version so maybe by the time I decide on what tune to upgrade to (currently jb4/e30) there will be enough development for me to make a better decision. I would most likely lean towards the more consistent + better performance option (regarding launch method) but who knows for now. Thanks again for the info, I learned a lot!

 

[Seeing_Red]

Good to note, I will probably look around and talk with more people who have went for records/to the strip and see what is preferred and what not. I do have the AWD version so maybe by the time I decide on what tune to upgrade to (currently jb4/e30) there will be enough development for me to make a better decision. I would most likely lean towards the more consistent + better performance option (regarding launch method) but who knows for now. Thanks again for the info, I learned a lot!

I was JB4/E30 but recently got the EK1 Lite. The car is noticeably faster. So far just did TCU from SXTH and a BEF from Teri and my tune isn't even 100% dialed yet.

 

[Slip_Angle]

There is a Facebook group called brake boost harness or something like that.. The Creator of the group makes these harnesses that just plug into a fuse spot inside the car. It's got a switch that you toggle to do launches. Seems to work well from what others have posted. I think they are $20-$30 bucks.

 

[njdaewoo]

SCK0T33NH0 is my ID for the TCU, not sure if thats the same on you have.

How did you find the trans TCU ID?

 

[njdaewoo]

How did you find the trans TCU ID?

Also, does the trans TCU ID have to match the new one you are buying from SXTH?

 

[njdaewoo]

Yes. Just select the write function, then Choose the TCU file, then let her rip. I just flashed mine earlier today. Its that simple.

Does the TCU ID on my car have to match the new trans tune file you are purchasing from SXTH or can you just purchase any stinger 8 speed trans tune and load it?

Thanks for any help giving.