Boost question
May 28, 2006, 09:45 PM
#16
Evolving Member
Thread Starter
iTrader: (3)
Join Date: May 2004
Location: Seattle, WA
Posts: 445
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by MalibuJack
You can use an MBC and set it manually to 19psi (or any reasonable setting for that matter) or you can alter the settings in the ECU to remove the tapering feature.
People are preaching that the stock turbo just "isnt efficient" enough to hold boost to redline, but that's a lie. The turbo is plenty efficient, and will hold a max of about 26psi to redline before running into efficiency issues.
The only proven method I have seen that allows you to hold boost solidly through all gears and rpms is upgrading the wastegate actuator.
May 28, 2006, 11:51 PM
#17
Originally Posted by JeffR116
Actually Jack, a MBC will not let you hold boost solid to redline, even at 19 psi. I know, because I have one.
People are preaching that the stock turbo just "isnt efficient" enough to hold boost to redline, but that's a lie. The turbo is plenty efficient, and will hold a max of about 26psi to redline before running into efficiency issues.
The only proven method I have seen that allows you to hold boost solidly through all gears and rpms is upgrading the wastegate actuator.
People are preaching that the stock turbo just "isnt efficient" enough to hold boost to redline, but that's a lie. The turbo is plenty efficient, and will hold a max of about 26psi to redline before running into efficiency issues.
The only proven method I have seen that allows you to hold boost solidly through all gears and rpms is upgrading the wastegate actuator.
what kind of waste gate actuator are you talking about anway ? is it forge??
May 29, 2006, 06:15 AM
#18
Originally Posted by JeffR116
Actually Jack, a MBC will not let you hold boost solid to redline, even at 19 psi. I know, because I have one.
People are preaching that the stock turbo just "isnt efficient" enough to hold boost to redline, but that's a lie. The turbo is plenty efficient, and will hold a max of about 26psi to redline before running into efficiency issues.
The only proven method I have seen that allows you to hold boost solidly through all gears and rpms is upgrading the wastegate actuator.
People are preaching that the stock turbo just "isnt efficient" enough to hold boost to redline, but that's a lie. The turbo is plenty efficient, and will hold a max of about 26psi to redline before running into efficiency issues.
The only proven method I have seen that allows you to hold boost solidly through all gears and rpms is upgrading the wastegate actuator.
And the stock actuator can easily hold 21 psi (and more in some configurations).. Most actuators have not been correctly preloaded which is likely the reason why they aren't holding correctly. Also, 80% of the cars have other issues, boost leaks, inadequate signal to the DV causing it to open early, insufficient spring pressure in the DV, etc..
Last edited by MalibuJack; May 29, 2006 at 06:37 AM.
Thread
Thread Starter
Forum
Replies
Last Post
maperformance
Vendor Announcements
95
Dec 16, 2014 04:57 PM
Andrew@AMS
Automotosports - Illinois
7
Sep 18, 2012 07:01 AM
