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Old 02-11-2004, 04:18 PM   #1
rallyrex
Scooby Newbie
 
Member#: 39259
Join Date: Jul 2003
Location: danbury,ct
Vehicle:
2004 wrx sti
silver

Default vishnu chip help

do i need to get a manual booster control if i do the stage 0?
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Old 02-11-2004, 04:58 PM   #2
tk_1971
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Member#: 20904
Join Date: Jul 2002
Location: Los Angeles, CA
Vehicle:
2012 CT200h
I miss my bugeye

Default

Unichip?

If so, Stage 0 was designed with some sort of boost control (15.5psi). You can run without it, but not increasing boost = no power gains. Plus, you'll probably run really rich.

I ran a GABEDUDE MBC for about 1 year (ball/spring + bleeder) before going to an SBC-ID III when I went to Stage 2 from 0.

IMO, at stage 0 you really don't even need the Unichip. Most of the gains are from the MBC. As long as you don't overboost, you should be relatively safe.
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Old 02-11-2004, 05:53 PM   #3
rallyrex
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im asking because i have the pulley inter cooler hoses, up pipe and a scooby sport mid pipe and exhaust. i saw a unichip and i was wondering if i get it do i need to put in a different mbc? also with all of this do i need to get injectors? ill prob being gettin around 300 hp with all of this.
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Old 02-11-2004, 06:59 PM   #4
tk_1971
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Location: Los Angeles, CA
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2012 CT200h
I miss my bugeye

Default

Huh? I'm like a little over the 300hp/STI level (dyno proven) and I'm at Stage 2 (VF30, Injectors, fuel pump, etc).

Do a search on what VS0, VS1 and VS2 are (Vishnu Stage #).

Stage 0 is pulley, up-pipe, spark plugs, and MBC. Stage 1 adds an exhaust to it and Stage 2 adds VF30, STI injectors, Fuel Pump, EMI, etc. With your mods, you will probably want the Unichip at Stage 1 and YES, you will need some kind of boost controller (not your stock boost controller) for any of the stages.

With any turbo (stock or whatever), the more boost, the more power but tuning and supporting mods prevent your engine from going boom. Also, with the Unichip engine management system, you will need a boost controller (MBC or EBC).
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Old 02-12-2004, 10:10 AM   #5
Rickyh
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Chapter/Region: South East
Location: Metairie, Louisiana
Default

actually on my 02 with a txs stage 2 unichip, i had lower egt's without the chip.
\
I mean with just a mbc set to 16 my egt's were lower than with the unichimp. go figure.
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