Before putting my car on meth which is in my car and working right!, I need to fix my boost to hold at 24-25psi, but shooting for 28psi with meth. As far turbo mods,

AMS MBC (could be something wrong?)
20G turbo 6blade ( no shaft play ) - I dont think its broken...
Forge WGA ( I did clean it inside - there was a lot of mud dirty as ****)
Forge BOV, recirculated with BLUE spring inside.
o2 housing, exhaust mani.
ecuflash

I did boost leak test, ( I will do some more tonight )

The boost will go up to 24, and slowly falls down to like 19 by 7000rpm's. If it falls by 1 psi by redline iam ok with it. but not that much.

any ideas?... I just cant find any more answers.

 

Your turbo is shot :-p we'll figure it out tonight.

 

Check out my thread... it could be a combination of things.

https://www.evolutionm.net/forums/sh...d.php?t=264098

The Forge WGA is trash. Check out the pic in my first post.

You need the FP upgraded WGA. If you're running meth I recommend around 4 turns of preload. I've also have problems with the Forge MBC and stiff spring sticking like crazy. About the only working forge product I've owned so far is the BOV/DV.

My setup is like this:

FP upgraded WGA 4 turns repload
Forge MBC w/ soft spring around 20-25 clicks
Forge RS DV with blue spring

I'm hitting right around 28 and holding 25ish around 7300rpm. Your problem is the WGA.. I can almost guarantee it.

 

PS: I believe I was holding 22/23 when I had the 6 blade.. right before it seized and blew up

 

Dan the man.

The easiest things to check is the wastegate (hook a vacuum source to it with a guage and see when it opens) and the MBC.

Or you can buy a 2.3 stroker with a GT55AARRGGG. That's the champions choice.

 

I belive that Forge WGA is trash also, I dont think IT opens! all the way!. where can i get FP upgraded WGA ? and how much does it cost?

I will test that ***** again tonight...

 

http://store.forcedperformance.net/m...Category_Code= Dan we tested the forge wga and preloaded it already, it opens exactly at 20psi now remember? $139.95 + shipping/tax.

 

Yeah, I remember but i would like to take it out again and hookup mbc to it and boost gauge and see how it opens,

btw, MY forge WGA was even more dirty inside that picture shown.

 

If the MBC ball sticking? I'm not familiar with their mbc's.

You want it higher than 20psi if you're running meth. I preploaded mine to almost 25psi and things are perfect now. I seriously think the forge has issues. It shouldn't be full of rust/gunk. You won't have this with the FP upgraded which is somewhere around 130-150 bucks.

Any boost logs or anything? Mine didn't taper at all it would spike then fall immediately. After preloading the Forge WGA I was able to use the soft spring in the Forge MBC which helped too because the stiff spring would stick.

 

This is what mine looked like since we're on the topic.

 

Yes , FORGE WGA! was dirty even more! that shown on your picture, that was ton load of mud inside. what a crapy ****.

Yeah lets say i SET for 24psi on pump, it falls sloooowly down to 20-19psi by redline, I will still test my boost line for the gauge today and see maybe its cut somewhere, we even used my friends Forge MBC and acted the same.

 

So how much boost stock WGA can hold? I could probably find it localy.

 

Wow, glad I took a look at this site. To date we have only had two people contact us with this problem but apparently there are more out there.

Contact us directly and we will take care of you.

407.447.5363
pat@forgemotorsport.com

 

great customer service Forge !!!!!!!!!!!!!!!

 

I will for sure. thx tho