MAP EF2 boost creep troubleshooting
Wondering if anyone else noticed that the OP lists his drive as being an Evo X? Shouldn't this thread be over in the X forums? Not trying to be picky but....anyway I hadn't picked up on that detail til now. Now I know why he's mentiong Turbosmart WG's. I'd never heard of those. But, I figured that I was just out of the loop due to my old age. LOL

This wasn't here originally, it was part of the EF turbo results thread then got sectioned off by the mods.
Its in shop i droped it off wed morn and still waiting im going give them a call today, but since i havent heard from them im assuming they haven't got to it yet. I will post what they found the second i find out , so just chill everyone.
Just spoke with them did boost leak test and checked some other stuff and found nothing. So now waiting to get on Dyno and see what happens.
Just spoke with them did boost leak test and checked some other stuff and found nothing. So now waiting to get on Dyno and see what happens.
Last edited by seanr8368; Jun 1, 2012 at 08:01 AM. Reason: Added
Just got call from Sean Ivey and said it was just actuator was to loose. They adjusted that and small meth leak and retune and all is good. So im a happy man..... Doing 375 whp backed down from 398 to keep me safe , cause its the dd with baby seat in the back
anyway alot of headache for no big deal.
anyway alot of headache for no big deal.
Now where did I see someone saying it was just an improperly set wastegate?
Oh yea, it was me, in this thread.
hahaha
Glad everything is going well for you and your car, now go out and enjoy it!
Oh yea, it was me, in this thread.
hahahaGlad everything is going well for you and your car, now go out and enjoy it!
Haha Thanks again and like i said you ever down Belmar area give me a buzz im buying..
I am very happy to hear the problem has been addressed. We only wanted the customer to be able to enjoy his car...and do it safely. 
I am just a bit confused. Assuming the arm was loose, how did that cause a creep issue? If the arm was loose, chances are the flapper would have been symptomatic. It would have had made some noise at idle and I would think it would have a hard time holding boost, not cause it to run more boost? If the arm was loose it would allow exhaust gasses to bypass the flapper and bleed off boost pressure.
As I said, I am just glad he has a potential solution(once he gets the car back we will have a better picture) to his issues. We wish him the best and I hope he enjoys the new found power from his mods. I sent Sean(OP) an email, so I am eager to see some data logs from the revised set up.
Good luck!
John

I am just a bit confused. Assuming the arm was loose, how did that cause a creep issue? If the arm was loose, chances are the flapper would have been symptomatic. It would have had made some noise at idle and I would think it would have a hard time holding boost, not cause it to run more boost? If the arm was loose it would allow exhaust gasses to bypass the flapper and bleed off boost pressure.
As I said, I am just glad he has a potential solution(once he gets the car back we will have a better picture) to his issues. We wish him the best and I hope he enjoys the new found power from his mods. I sent Sean(OP) an email, so I am eager to see some data logs from the revised set up.
Good luck!
John
Car came in, customer explained symptoms which were reported to him by shop X.
My tech takes the car in the back, checks over what he can, finds the WG not adjusted properly, preload not set etc, apparently the flapper was being held partially open no preload.
Logically this wouldn't make sense since the non adjusted WG should keep the boost down.
I finally get it on the dyno run it on the Shop X program, runs fine, a bit lean in the spool area, makes same thing it made on their dyno, no evidence of boost creep now.
I then retune it at high boost it makes 398 wheel, good running car, then we dial it back to 24-25psi and it makes 37x and leave it there, safe.
I didn't read the whole thread, but we charged to adjust the wg and tune, if more was done believe me we would have charged for it.
Sean
My tech takes the car in the back, checks over what he can, finds the WG not adjusted properly, preload not set etc, apparently the flapper was being held partially open no preload.
Logically this wouldn't make sense since the non adjusted WG should keep the boost down.
I finally get it on the dyno run it on the Shop X program, runs fine, a bit lean in the spool area, makes same thing it made on their dyno, no evidence of boost creep now.
I then retune it at high boost it makes 398 wheel, good running car, then we dial it back to 24-25psi and it makes 37x and leave it there, safe.
I didn't read the whole thread, but we charged to adjust the wg and tune, if more was done believe me we would have charged for it.
Sean
Originally Posted by AkumaMotorsport.......I am just a bit confused. Assuming the arm was loose, how did that cause a creep issue? If the arm was loose, chances are the flapper would have been symptomatic. It would have had made some noise at idle and I would think it would have a hard time holding boost, not cause it to run more boost? If the arm was loose it would allow exhaust gasses to bypass the flapper and bleed off boost pressure.....John[/QUOTE
[QUOTIE]
This is a very good question, John. Good in the way that it makes you think about boost control and the seeming incongruity of how a flapper valve that is set at base spring pressure can overboost and when the actuator rod is adjusted tighter the overboost(boost creep) disappears and peak boost level is now under control. How is this possible? What factors of the OP's original setup could cause this seeming contradiction? I have turned it over in my mind and I wonder if anyone else has any possible explanation for this apparent boost control anomaly.
Last edited by sparky; Jun 5, 2012 at 08:05 AM.
Well it aint over yet.... I did quick little 3rd gear pull just watching my boost not even totally floored and it stayed around 25 then right as car shifted shot up to 27.5 and like i said not totally floored.
Is it possible to keep this car under 25 at all times?
Is it possible to keep this car under 25 at all times?
NOT YET... Is there anyway in this world that i can get you and me and either John or Sean on phone or in same conversation? Instead of this turning into some **** show, with everyone blaming everyone and me just spending more and more money? NOW THAT WOULD BE CUSTOMER SERVICE. you can email me, text me, call me, Pm me. John also said he has no problem talking to you and solving this.
I am not blaming anyone or saying anyone did anything wrong. I just dont understand why i cant stay under 24, 25 psi.....
I am not blaming anyone or saying anyone did anything wrong. I just dont understand why i cant stay under 24, 25 psi.....


