1.8EG-T

I have the drag turbo kit, tial wastegate, with xs mbc, at first my boost would go to 4 psi then settle to 2psi, then all of a sudden it goes to 4psi and sustains, afterwards I close the mbc all the way and give it 12 full rotations to open the boost up, but still max psi is 4 psi and sustained with wide open throttle. Vac line goes from the turbo, to the mbc in port and then to the tial bottom port. Do I have this thing hooked up properly? Thanks for your help.

DragII

your losing 2psi through the intercooler.

threatcon13

i have the same problem....tial wastegate is set at 5.5 lbs? and hondata logger is registering 2 lbs, autometer boost gauge is registering 4 lbs in third gear WOT.

dustin

Which MBC are you using?

Which direction to you have the MBC installed inline on the pressure line? You should be using the intake manifold as your pressure source, not the compressor.

Dustin

maxim

He's right, makes a big difference when you have it going into a vac port AFTER the TB. I used to hit around 2psi in 4th gear..now I hit 5-6psi. The reason I only ht 5-6psi and not 7 is because I just found out that the screw on my BOV is too loose. So try that.

Arturbo

Do you have the air filter that came with the drag? Or did you replace it with a K&N?

art

B16A1-EF9

Most likely loosing boost through the blow off valve...it's blow it it all out. Tighten the BOV some more should fix it right up.

1.8EG-T

No, I am not running an air filter, the Drag gen 2 kits do not come with one. So I need to relocate my boost controller inlet vac line from the compressor to say the brake booster line. Do I just leave the compressor nipple open or do I have to go buy a cap for it, sorry for the repeated questions, Thanks.

dustin

you need a filter man.

1.8EG-T

Yeah, I have one from my old Greddy kit that I am going to put on, once I get all this problem solved. I do not think I mentioned that there is this really loud metal on metal sound coming from under the hood once and only while in boost. Not like detonation pinging, but louder. COuld this maybe be the turbo bearing?

FBP Ex-T

check for boost leakss.....and u will lose some psi through the whole system

maxim

Also check your charge pipe. It could be bumping up against that metal piece(I think its a motor mount or something). Mine was doing that until I rapped a rupper piece over the pipe where it was touching. Just a suggestion.

RAWB

I had the same thing a couple weeks ago, my TIAL wastegate wasn't tightened ALL the way down(damn TIAL hex bolts are hard to get bite on) I replaced them with regular bolts and vuala NO MORE rattling sound.

1.8EG-T

Thanks guys, I will check out all of that.