It seems as if 98% of everyone with the k24/18g is running the Greddy EBC, but a few are not. And the standard Vivid kit doesn't even come with the EBC - but it is an option of course.

So, my question is... if I plan to run pump gas only do I really need this? Vivid says that their tune will "adjust" to the octane level if you decide to put in 100+ octane. But, the way I understand it, is that you still cannot adjust the peak boost level unless you have the EBC. So, the EBC provides safety and adjustability. Correct?

I read on and on about people saying dont go over 1.1 or 1.2 bars with pump gas, but you can go up to 1.3 or 1.4 with 100 or C16, etc. Well without this EBC, what is controlling how much boost you will see? Just the upgraded wastegates? (still learning here....)

Do all of the other tunes (Proto, EPL, etc) "adjust" to the octane level as well?? And if I go WOT with one of these tunes and no EBC, what max boost will I see on pump gas?

thanks

Happy New Year everyone!

 

Good question. And to whomever answers Flashes question, can you also explain why tuners recommend the EBC for 24/18s but don't for K24s.

 

Happy New Year!!!

I'm sure some tuners will chime in, as soon as they sober up...but I believe that with an EBC you take away your ECU's boost control, read: safety. I also think the guys that have them are street guys, the guys that don't want them are road race guys. I would think if you have a pump gas tune, why do you need one? 1 tune, 1 boost level? Not sure about these magic tunes that learn boost levels...

 

Without! If you'll never run anything more than pump gas... there is no need to run an EBC. When you remove the factory solenoid you take away the factory safety feature that will back boost down/retard timing. Heres the real trade off... hard pulling w/lots boost... or a new engine!!! Be there... done that!!! GL/w your mods!!!

 

with my current Softronic tune, my boost level holds steady at 1.3 on pump 93 or MS109. I don't really buy in to the idea that the tune adjusts to the octane level because the boost level doesn't change when on race gas. The only benefit of running the race gas is to help prevent detonation. At least this is what makes sense to me.

 

I am assuming you are not running an EBC? I am also assuming the guys that have them put race gas in their cars more than just once in awhile. ?
I guess, in theory, I like the fact that you can limit the boost manually with the EBC depending on your octane level. I would probably put 100 octane in once in awhile, but definitely not often...

What will the factory ECU limit boost to (regarding you comment about trading off hard pulling w/ lots of boost) ?? thanks!

Why do you run MS109? Isn't the point of running that to allow you to turn up the boost level safely? Do you not feel safe at 1.3 bar on pump?

 

have a file for pump gas and for race gas it's makes one hell of a difference not the same car in the pump gas mode

 

so are you running an EBC with that? whose tune?

 

this is why I'm thinking of getting an EBC.

 

Flash,

At this point running race gas won't improve performance I think. I only ran race gas on the first map, not on the remap yet. I am told by Softronic that running 1.3 is safe for my car on 93 octane.

 

Yeah I'd like to know what the other tuners say because Softronic is the only one I've seen that claims their tune can adjust to octane.

 

I guess I am one of the lucky few that have 2 ECU's. I have an ECU with a 1.2bar pump gas tune. I also have a spare ECU that I plan to put a MS109 tune in for 1.4bar or so. This way I always have the protection from Porsche. If I have a problem, my ECU will back my boost down to stock level(.7 bar) regardless of which ECU and tune I am running. I have been playing with the idea of an EBC, but just can't seem to justify it and there's the safety thing.

 

you can run a 1 bar spring wihtout a EBC. the reason you need a EBC at all is to turn up the boost since the ECU will not do it after a certain point....
If you really want to know if your car is running right, hook up a ARF gauge... if you running in high 13s you know its too much boost...
Get proactive about you car.... dont wait till it blows up.... I seen guys runing 1.5 bars on pump gas on 18gs... and when they call me asking me what is wrong when they hear "Popping" noises.... I say- It may be too late my friend....
I dont care what ecu you running.... but on 18gs 1.1 is safe on pump gas... 1.3 bars is OK on 104 octane.,.... thats it... anything more is taking a risk....
I know first hand from someone that had 16g, 18g, and 20gs on his car long before any tuners even knew about such upgrades... If anyone knows how these should be run it is he....
best,
markski

 

So what should boost peak at when running the 18g with the stock ECU? I assume this is the safest way...

 

you should NOT be running 18gs with a stock ECU.... you mean stock is in not" flashed" right?