Stock STi turbo
01-12-2005 | 07:16 AM
#6
Registered User
iTrader: (14)
Joined: Nov 2001
Posts: 14,221
From: Peoples Republik of Kalifornia
Car Info: 05 H2 SUT, 45 GPW, 10 Murano, 13 Boss 302
Originally Posted by _sti_05
how many pounds of boost can the stock turbo on an sti can handle
whats the max.. psi
just wondering...
whats the max.. psi
just wondering...
01-12-2005 | 09:12 AM
#7
About 18 psi seems to be the max psi most guys are running on 91....but keep in mind, thats peak boost, which tapers down to 14-15#'s by the time redline comes around.
The turbo seems to run out of breath in the 360-370hp crankshaft range on 91...closer to 390-400hp on race gas...thats with a good tune and supporting mods.
12.4-12.5 1/4mile seems to be the limit on the vf39 on a STI.
The turbo seems to run out of breath in the 360-370hp crankshaft range on 91...closer to 390-400hp on race gas...thats with a good tune and supporting mods.
12.4-12.5 1/4mile seems to be the limit on the vf39 on a STI.
01-12-2005 | 09:14 AM
#8
Originally Posted by Egan
I'm runnign about 17.5 psi. I'm not sure at what point the efficiency starts to drop off, but I would imagine it's not much more than 18psi.
Ever race??
01-12-2005 | 10:08 AM
#9
BanHammer™
iTrader: (8)
Joined: May 2000
Posts: 47,588
From: Wagonmafia Propaganda Lieutenant
Car Info: 2001 Forester RS2 SPEC-F
Originally Posted by MARKSTI
From what i recall...u seem to have one of the stronger STIs with just Exhuast/Tune, it would be nice to see some 1/4 times...
Ever race??
Ever race??
:P
01-12-2005 | 11:18 AM
#10
Registered User
Joined: Oct 2004
Posts: 279
From: Brownsville, Texas
Car Info: 2005 STi
Originally Posted by Egan
I'm runnign about 17.5 psi. I'm not sure at what point the efficiency starts to drop off, but I would imagine it's not much more than 18psi.
what mods do u have that has u running 17.5 psi, if u dont mind asking
01-12-2005 | 11:44 AM
#11
Originally Posted by Scott@S-S
mike is too fancy for a drag strip.. he only races on the track
:P
:P
i guess i'm sorta retarded so that helps with my dragstrip adventures.....
Last edited by MARKSTI; 01-12-2005 at 11:58 AM.
01-12-2005 | 07:36 PM
#13
Registered User
iTrader: (14)
Joined: Nov 2001
Posts: 14,221
From: Peoples Republik of Kalifornia
Car Info: 05 H2 SUT, 45 GPW, 10 Murano, 13 Boss 302
Yep, Vishnu Stage 1 which is 3" TBE w/ hiflow cat and ECUTek reflash.
I will probably take the STi out to Sacramento raceway for the Wednesday night drags (when they open back up) now that I work right down the street.
I will probably take the STi out to Sacramento raceway for the Wednesday night drags (when they open back up) now that I work right down the street.
01-12-2005 | 07:37 PM
#14
Registered User
iTrader: (14)
Joined: Nov 2001
Posts: 14,221
From: Peoples Republik of Kalifornia
Car Info: 05 H2 SUT, 45 GPW, 10 Murano, 13 Boss 302
Originally Posted by Scott@S-S
mike is too fancy for a drag strip.. he only races on the track
:P
:P
01-13-2005 | 10:19 AM
#15
Originally Posted by Egan
I will probably take the STi out to Sacramento raceway for the Wednesday night drags (when they open back up) now that I work right down the street.
Maybe that will be around the time u race...as Sacramento raceway opens up in a few weeks.
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