Upping boost without a boost controller?

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AE_Racer
Posts: 28
Joined: Wed Sep 04, 2002 12:02 pm

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I was reading on another website there is a way to up the boost to 11psi by just changing the routing of the vacuum hoses, by going from WG to actuator, then to tb...can someone elaborate on this exactly? btw i have supporting mods, 255lph, FMIC, 3" exhaust...

edit: S13 redtop SR


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Sileighty_85
Posts: 149
Joined: Mon Jan 19, 2009 2:42 pm
Car: 1991 180SX

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going straight from TB to W/G act will lower your boost pressure to about 4-5 psi

only two ways. B/C or HKS Act. W/ Stock solenoid

travizx0r
Posts: 9
Joined: Thu Jan 05, 2006 1:47 pm
Car: 99 civic si, 97 240sx se

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you can also use a tee in your vacuum line to the actuator to bleed off air. Some say this is not safe but I have a series of T adaptors and can control the boost with that. I have a setting for 10, 12 and 15 lbs with no spikes but at 15lbs the turbo cant keep up and boost dies down to 13 lbs at high rpm.

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Justin35ll
Posts: 1421
Joined: Fri Oct 17, 2008 6:57 pm
Car: s13 coupe sr20det

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Just buy a manual boost controller. Ebay has a few for 14$ shipped I think. Might order one myself. Just type in manual boost I think

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240_SeX
Posts: 506
Joined: Sat Feb 09, 2008 4:02 pm
Car: 1992 240SX SE

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I have hurd of putting a restriction in the wastegate line, but i would not recommend it...

You can always weld your wastegate flapper to the exhaust housing, that will up the boost

HPR
Posts: 96
Joined: Wed Aug 30, 2006 7:51 pm
Car: 1990 Nissan 240SX

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Or you can do it the ghetto way and shorten your wastegate arm by bending it :P Honestly though, you should invest in a boost controller, taking shortcuts will usually cause more headaches in the long run.


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