S14 SR20DET Boost creeping
S14 SR20DET Boost creeping
Ok I've searched but not really finding anything, I had a DNA MBC on but at about 4000 rpm with the Boost controller on the lowest setting it would creep from 7psi to 10psi then at 5000+ it would just climb. So I ran it directly from the hotpipe nipple to the wastegate and same thing. Any Ideas? Stock S14 Turbo, stock wastegate...
-
elwesso
- Posts: 30810
- Joined: Sun Feb 23, 2003 4:52 pm
- Car: 94 Infiniti Q45t 5 spd
2007 BMW M Coupe
2007 Infiniti G35 S 6MT - Location: Indiana
- Contact:
Re: S14 SR20DET Boost creeping (nj240sx)
Hi and welcome to NICO!
Ive moved this to the RWD SR forum...
Ive moved this to the RWD SR forum...
-
Blown240sx
- Posts: 1963
- Joined: Thu Apr 21, 2005 3:20 pm
- Car: 1996 240sx
Re: S14 SR20DET Boost creeping (nj240sx)
faulty MBC
-
boost_creep
- Posts: 838
- Joined: Sat Jul 31, 2004 10:45 am
- Car: 92 sr powered coupe,06 Spec V
Re: S14 SR20DET Boost creeping (Blown240sx)
but he said he took it out and it still did the same thing.Blown240sx wrote:faulty MBC
double check all your vac lines.especially the one on the wastegate.
-
Blown240sx
- Posts: 1963
- Joined: Thu Apr 21, 2005 3:20 pm
- Car: 1996 240sx
Re: S14 SR20DET Boost creeping (89 240hatch)
Wastegate could be bad also. Since the wastegate is just a rubber diaphram.
Re: S14 SR20DET Boost creeping (Blown240sx)
Ok well I tried disconnecting the wastegate just to see how the car would act and it shoots straight to 10psi at like 2000rpm so the wastegate is doing something just not enough at 5000rpm. I swapped the hose and no change. I pumped air to the wastegate from my shop airline and it actuates thru the full sweep, but then again that is alot more then 7psi. I ordered the HKS wastegate actuator so I'll keep you guys posted.thanks for the help