Greddy kit (internal wastegate) + b18c5 = overboost :(

Thread Tools
 
Search this Thread
 
Old Jul 23, 2004 | 03:23 PM
  #1  
Chris F's Avatar
Thread Starter
Senior Member
 
Joined: Jun 2004
Posts: 10,399
Likes: 3
From: Chicagoland, IL
Default Greddy kit (internal wastegate) + b18c5 = overboost :(

Hey all,

Well my tuner finally got everything together and put my car on the dyno... stock b18c5, greddy turbo kit, greddy intercooler, e-manage, profec B spec II. Stock greddy downpipe, test pipe, and Tanabe Racing Medallion exhaust. I still have the stupid intake restrictor plate on the intake (comes on the b18c kits from Greddy).

Anyhow- it hits 9 psi at 5800 RPM and won't go any lower, even disconnecting the profec B and loosening the spring on the internal wastegate. Didn't take it past that.

So, looks like I need an external wastegate. I was looking forward to the quieter internal wastegate.

Anyone surprised? Any suggestions?

-Chris
Reply
Old Jul 23, 2004 | 03:25 PM
  #2  
FBP Si 2000's Avatar
Member
 
Joined: Apr 2001
Posts: 1,390
Likes: 0
From: CA, USA
Default Re: Greddy kit (internal wastegate) + b18c5 = overboost :( (ccfries)

I'm surprised that it is stuck at 9psi...maybe someone has been in the same situation.
Reply
Old Jul 23, 2004 | 03:27 PM
  #3  
MachAF's Avatar
Honda-Tech Member
 
Joined: May 2001
Posts: 2,477
Likes: 0
From: MSP
Default Re: Greddy kit (internal wastegate) + b18c5 = overboost :( (ccfries)

you might try changing vacuum sources to the wastegate. See if that makes it open sooner.

Try the braker booster line.
Reply
Old Jul 23, 2004 | 03:37 PM
  #4  
Black Si's Avatar
 
Joined: Jun 2003
Posts: 202
Likes: 0
Default Re: Greddy kit (MachAF)

just tune it to 9psi
Reply
Old Jul 23, 2004 | 03:50 PM
  #5  
Chris F's Avatar
Thread Starter
Senior Member
 
Joined: Jun 2004
Posts: 10,399
Likes: 3
From: Chicagoland, IL
Default Re: Greddy kit (Black Si)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Black Si &raquo;</TD></TR><TR><TD CLASS="quote">just tune it to 9psi</TD></TR></TABLE>

It looks like it'll go past 9 PSI if I took it any higher (which I didn't want to, not with a stock ITR motor).

I'll try changing the vacuum source and lengthening the actuator arm a bit. Otherwise I'm off to get an external wastegate.

Hopefully I'll get it running stable before a HPDE in a week (Blackhawk farms in Rockton IL)

I'm open for more ideas Thanks for the quick posts guys.

Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
xander1100
Forced Induction
27
Jun 27, 2009 10:56 AM
jdkornlp
Forced Induction
1
Nov 17, 2003 07:08 PM




All times are GMT -8. The time now is 06:04 PM.