Octane Booster
Registered User
Joined: Jul 2003
Posts: 42
From: 03 WRX Wagon Southern California
Car Info: 2003 WRB Wagon
Originally Posted by RussB
you'd be better off finding a pump with 100 octane unleaded and mixing that in.
Guest
Posts: n/a
The stock car cuts boost to 9 psi after 5k rpms so what you are seeing is totally normal for a stock car. If you want the car to make boost after 5k and make real power you have to get a boost controller. A boost controller will hold it at what ever psi you set it at within reason for the small turbo. My car makes a little below 15 psi after 5k and slowly drops as rpms build and the stock turbo runs out of steam. My car made 252hp to the wheels at 6850 rpms with this set up. At 6k where the car used to die it now pulls to redline so hard sometimes I shift late at 7200 rpms .
Thread Starter
Registered User
Joined: Aug 2004
Posts: 131
From: Midland, TX
Car Info: 2004 Black WRX -- RIP
Originally Posted by excessive03
The stock car cuts boost to 9 psi after 5k rpms so what you are seeing is totally normal for a stock car. If you want the car to make boost after 5k and make real power you have to get a boost controller. A boost controller will hold it at what ever psi you set it at within reason for the small turbo. My car makes a little below 15 psi after 5k and slowly drops as rpms build and the stock turbo runs out of steam. My car made 252hp to the wheels at 6850 rpms with this set up. At 6k where the car used to die it now pulls to redline so hard sometimes I shift late at 7200 rpms .
VIP Member
iTrader: (2)
Joined: Nov 2002
Posts: 15,425
From: Under your bed, in your closet, and in your head
Car Info: Corvette Z51
Originally Posted by excessive03
The stock car cuts boost to 9 psi after 5k rpms so what you are seeing is totally normal for a stock car. If you want the car to make boost after 5k and make real power you have to get a boost controller. A boost controller will hold it at what ever psi you set it at within reason for the small turbo. My car makes a little below 15 psi after 5k and slowly drops as rpms build and the stock turbo runs out of steam. My car made 252hp to the wheels at 6850 rpms with this set up. At 6k where the car used to die it now pulls to redline so hard sometimes I shift late at 7200 rpms .
Thread Starter
Registered User
Joined: Aug 2004
Posts: 131
From: Midland, TX
Car Info: 2004 Black WRX -- RIP
Originally Posted by Choku Dori
Be careful going this route that you don't become too ambitious. It's very easy to overboost if the EBC is not set correctly. Plus, I don't think it's just an EBC that allowed you to put out that much power; surely you have other mods?
Guest
Posts: n/a
The car has a crappy flat flange custom 3" tbe, dc uppie, and aem intake as well as the boost controller. An no you can't get your self in too much trouble with a mbc because the overboost fuel cut will stop you from grenading the engine, don't ask how I know. That and the stock turbo can't even maintain 15 psi after 5k rpms. Even still don't mess around with one unless you understand what you are doing.
VIP Member
Joined: Nov 2003
Posts: 1,684
From: Are you too one of the few still living the past? Well I can change that! With a simple wicket. Yes, my friend, a wicket. PM for details.
Car Info: No car right now....sob.
Originally Posted by RussB
... with 100 octane unleaded and mixing that in. but if you're able to get 92 octane, that's pretty good stuff as is.
Registered User
iTrader: (10)
Joined: Jun 2004
Posts: 793
From: San Jose CA
Car Info: '09 accord, '14 2 seater chevy
Originally Posted by PyroManiac
That's great for those of you with higher than 91 gas. In Colorado, 85 is regular, 87 is premium, and 91 is super. Nothing higher.
Thread
Thread Starter
Forum
Replies
Last Post
gpatmac
Engine/Power - EJ20T (pre-2006 WRX and JDM)
11
Sep 29, 2003 12:50 AM
Ash
Engine/Power - EJ20T (pre-2006 WRX and JDM)
10
Jul 3, 2003 12:42 PM
cobraKLR
Engine/Power - EJ20T (pre-2006 WRX and JDM)
2
Jan 23, 2003 12:31 PM