hard to keep the boost down(15psi)

[boost infested]

with a 35mm deltagate i am having a hard time getting boost down...?

i've backed the screw at the top, i am not sure how much more i can back the screw out. 2nd at wot i am still seeing close to 15psi......

anybody?

[C-Kwik]

The wastegate might be trashed. Deltagates are not known for their reliability.

[boost infested]

great!

[red240ne]

Better not get on it anymore, or you'll end up like me.

[Structure240sx]

check what color spring is in the wastegate. my deltagate came with 3 different springs and was boosting to 10-12psi which blew my stock motor. come to find out the wrong spring for my was in there.

[DriFt3r]

Structure240sx you blew up your motor at 12 psi? What kinda of fuel management did you have? How long did you run it at that psi before it blew up?

[Structure240sx]

8:1 fmu and base timing at 16 degrees, enough for 8psi. about a month it last but thats because it was blowing out the spark until the last couples days it lived

[mean green s14]

yeah my deltagate came with the black 12-15 psi spring in it, lucky for me i cuaght it and put in the 4-6 psi spring and adjusted the bolt on top to get 7psi

[red240ne]

adjusted the bolt on top to get 7psi

huh? please explain...

does a Tial work like this too?

[ftrs13]

structure, do you think that the spark issue attributed to your engine failure. Im wrestling with that problem right now.

[huguetpj]

huh? please explain...

does a Tial work like this too?

No

[red240ne]

ok, i was gonna say. I never heard of such a thing.

[Structure240sx]

i think my spark issue was saving my engine for a the first month i had the turbo on. since the spark was blowing out (about 4500+rpm wot) there wasnt as much stress as the full 11psi would have made. as soon as i closed the gap on the plugs to fixed the problem the engine went the next day

[ftrs13]

hmmm, maybe I shouldnt fix my problem thenout of curiosity, what do you think it was that blew the motor. did you run lean, or did it just stress out, and at what rwhp approx. was this on a T3 or hybrid T3/T4?

edit: I just read your car domain site, so you were running a T3T4 with FMU and at 11 psi it blew. that sounds a lot like you were running REALLY lean. fuel pressure must have been incredible. I suppose I shouldnt worry too much on a T3 with 8:1 FMU, and only 5-7psi. Ill get it fixed.

btw, how is the Manual Boost Controller, I have been having thoughts about going with one, but am concerned about overboosting, and the MBC seems to have a lot of potential to creep. just curious about your experiences with it.

[C-Kwik]

A spark blowing out should have no ill effects on a motor. no combustion takes place when this occurs.

[boost infested]

damn you guys for hi jacking my thread LOL.....

i suspect that this used wastegate that i have, has high psi spring. i will take it out tomorrow and check.

[Structure240sx]

sorry for hi jacking

ftrs13 - IM at structure240sx on AIM

[ftrs13]

yup. you werent online last night, and PM has been disabled, sorry for the hijack