Subaru Forester Owners Forum banner

1 - 3 of 3 Posts

·
Registered
1999 Forester S Turbo 5MT
Joined
·
1,960 Posts
Discussion Starter #1
Anyone (Simon) know what the maximum boost you could use on a UK 99 S Turbo? I know the ECU restricts it to 0.8 Bar but if you could get around the MAP sensor, say using a FCD, how far can you take it? I see people who say they are running 1.0, 1.2 and even 1.4 Bar, does this have more to do with the actuator once the ECU has been reprogrammed or internal mods? Ta.
 

·
Registered
99 UK S-turbo
Joined
·
8,566 Posts
On the standard tune I wouldn't go past 0.8bar, I am fairly confident its mapped safe to that, but beyond that who knows.....

The 99 PPP appears to be mapped to 0.97 bar (lets call it 1!)

Those running those levels of boost are either running JDM (which has a higher stock boost and boost cut) or been remapped as far as I know.

Simon
 

·
Registered
1999 Forester S Turbo 5MT
Joined
·
1,960 Posts
Discussion Starter #3
Good to know, thanks Simon. Hopefully I will be able to afford some attention from Bob Rawle this summer.
 
1 - 3 of 3 Posts
Top