DIY Turbo Discussion greddy on a 1.8? homebrew kit?
Sponsored by:
Sponsored by:

Boost creep out the ass

 
Old 10-01-2009, 09:08 AM
  #1  
Senior Member
Thread Starter
 
Join Date: Aug 2009
Location: MONROE CT
Posts: 1,102
Total Cats: 3
Default Boost creep out the ***

So i finished my six speed swap last night and motor install went for a ride and it held 10psi right on the money until 5k then it creeps to 15-17psi. This is on a evo 3 big 16g with a 44LB/min wheel. So i don't know what to do to fix this problem so any help on this would be great.


Thanks
mike
miatamike203 is offline  
Old 10-01-2009, 02:45 PM
  #2  
Junior Member
 
Join Date: Jan 2008
Location: Sparta, NJ
Posts: 92
Total Cats: 0
Default

Are you running a boost controller or just running off the spring pressure in the wastegate?
avante43 is offline  
Old 10-01-2009, 02:49 PM
  #3  
Elite Member
iTrader: (15)
 
Join Date: Dec 2007
Location: San Antonio, Texas
Posts: 4,847
Total Cats: 28
Default

You need to include more information about your setup. How are you controlling the wastegate? What does your exhaust look like? IWG? EWG?
ZX-Tex is offline  
Old 10-01-2009, 03:05 PM
  #4  
Elite Member
iTrader: (8)
 
Join Date: Sep 2006
Location: Severn, MD
Posts: 1,913
Total Cats: 5
Default

You've got a built motor. Run it to at least 17 psi and tune for that. Low boost on a large compressor mitsu turbo never works. Maybe on a 14b or 15c (or whatever the stock Greddy kit has). Not on a E316G, 18G, 20G.


Frank
fmowry is offline  
Old 10-01-2009, 03:17 PM
  #5  
Senior Member
Thread Starter
 
Join Date: Aug 2009
Location: MONROE CT
Posts: 1,102
Total Cats: 3
Default

Im running a MBC on the car, the wastegate is internal with an external dump. Im only tuning for 10psi for a DD tune then i am going to DYNO tune next week for my race tune 23psi.
miatamike203 is offline  
Old 10-01-2009, 04:05 PM
  #6  
Elite Member
iTrader: (2)
 
Join Date: Jan 2007
Location: Los Angeles, CA
Posts: 8,676
Total Cats: 120
Default

Could you write a little bit more infor about your high volume oil pump? I saw FMs page about this but haven't heard of anyone running one.
Faeflora is offline  
Old 10-01-2009, 04:12 PM
  #7  
Senior Member
 
Join Date: Jan 2005
Posts: 737
Total Cats: 0
Default

port the wastegate.
F20turbo is offline  
Old 10-01-2009, 04:37 PM
  #8  
Senior Member
Thread Starter
 
Join Date: Aug 2009
Location: MONROE CT
Posts: 1,102
Total Cats: 3
Default

Originally Posted by faeflora View Post
Could you write a little bit more infor about your high volume oil pump? I saw FMs page about this but haven't heard of anyone running one.
I got the oil pump from TOGA and i also have an upgraded oil pump gear in it for higher HP.
miatamike203 is offline  
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Full_Tilt_Boogie
Build Threads
67
03-16-2019 08:07 PM
StratoBlue1109
Miata parts for sale/trade
21
09-30-2018 01:09 PM
LucaCarMods
Build Threads
11
02-14-2016 06:13 AM
Trent
WTB
2
10-01-2015 12:15 PM
shooterschmidty
Engine Performance
8
09-30-2015 10:28 PM


Thread Tools
Search this Thread
Quick Reply: Boost creep out the ass


Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.