Hey Talon, care to elaborate on what exactly you meant when you say fiddle so that we can all benefit of keeping a consistant boost to redline? Did you happen to get the full 4 turns?

 

I only managed 3.5 turns.

 

Is that peaking 27psi and holding 27 psi? or is it boosting more?

 

I dis-agree. As even the evidence of the AMS dyno of the stock car the thing barely climbed power if any past 5k rpms and had huge spikes in it. I wouldn't call that a great climb to redline. After the tune it is fine but that increases boost as does the adjust of the waste gate.

 

The stock intercooler can not cool the intake air coming from the turbo good enough even with the stock boost...Cranking up the boost is only going to heat it up a lil more...The turbo on the X sits so close to the exhaust manifold its not funny and it heats the intake air way more then the VIII and IX anywhere from 20-50 degrees...It may not seem like much more but for every degree you lose HP...For all the haters saying ah well the stock intercooler is good for XX amount of HP well ok but with an aftermarket its going to be that much better...

Maybe its just they cant afford one and make excuses lol...

My car does pull way harder with the wastegate tightened 4 turns but I am going to crank it back down until I get a FMIC and U/LICP...

Cant wait for ECU-Flash to come to save the day doo doo doooo

 

So from the sound of it 3.5 is the way to go... I will try this tomorrow but like almost everyone else I am a little iffy. But eff it I guess right...? lol

 

No, from the sound of it 3.5 is max for most.

 

EDIT: Sorry, I misposted on this thread.

 

So anyone that has tested this for over a month want to chime in on boost taper before and after as well as drivability? Has anyone dynoed these changes before and after and shown it holds boost longer at higher RPMS's while making more safe HP? What causes internal WG boost taper, is it just the fact that there isn't enough preload on the arm and it gets forced open by exhaust pressure in an uncontrollable manner?

With an MBC I'm getting 25 PSI Spike then it settles to 23-24 PSI until 5500 then slowly fades to 20 PSI by redline. I'm not sure I can improve on that at this point although my boost gauge may read about 1 PSI higher than it should as when the car was stock it would spike to 25 PSI in 5th with high load but then settle at 23 PSI or so in the 3500-5500 RPM range. In 2nd through 4th it would fade down to 15 PSI in stock trim so I'm definitely holding more boost to redline with the MBC now.

 

has anyone tested this with a base ecutek flash?

 

I just did mine today. I did 3 turns. No check engine light so far. All stock, no mods.

 

I still have no wastegate actuator related CELs since doing this. I had one CEL when I forgot to plug in the MAF connector, which is unrelated to wastegate actuator.

 

I will give it a few turns today and see what happens! 100% stock EVO X

 

Sweet Info In This Thread

 

would this raise boost or just the boost taper? what if my ecu boost is set @24?