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Old 07-03-2005, 04:05 PM   #1
JNUTZ
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Member#: 90132
Join Date: Jun 2005
Chapter/Region: NWIC
Location: San Diego
Vehicle:
2003 WRX
Rally Blue

Question UTEC and Manual boost controller

Okay, So I just bought an 03 wrx and it has the DUAL turboXs manual and the Utec, My ? is should I just remove the Manual boost because it really defeats the purpose of the Utec controlling my boost? I know the guy installed both so he could set if for higher boost on the fly, but he had it set way to high, and I really don't want to f with it. I think I just want the Utec to be in controll of it, that way the right boost is being ran for the right maps. Any ideas or suggestions would be great.
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Old 07-03-2005, 04:20 PM   #2
hippy
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2002 Impreza Wrx
Silver

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The utec doesn't magically set the boost correctly for a given map when it's controlling boost. You still have to adjust the boost so it's at the level you want. I really don't think what's controlling the boost makes a difference other then you might get part throttle full boost with the dual stage boost controller. If you monitor the boost, it shouldn't be a problem. Just make sure the boost doesn't go too high(above around 8psi) while below 25% throttle. If it does, either lay off the throttle so the boost goes down, or lay on the throttle so it's past 25% tps(this is assuming that the tps crossover to map in the olf parameters is set to 25% and olf mode is turned on).

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Old 09-20-2005, 06:40 PM   #3
rudy_t2004
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Cool

Just wondering the outcome, or if anyone else has done this?
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Old 09-21-2005, 12:25 AM   #4
2phless
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Several have. Search this forum and check out wrxhackers. I've run the TXS dual stage with the stock and now the GMBC. There are several plumbing options for a number of aftermarket BCs running in series or parallel with the FBC. It's mostly just a matter of the headroom your boost map has versus the physics of your turbo on your setup. That is to say. It doesn't need to defeat the MBC, it might help it... If it is hooked up such that the FBC still functions.

I wouldn't assume a modded, used car came set-up right, but the parts aren't necissarilly bad either. If you are worried, turn down the boost and read-up on these sites. It's painful at first, but it'll save you money in potentially many ways. Turboxs has their manual on their site. It might take a few read throughs and some GENTLE adjustments to see what they are talking about. But it's worth it.
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Old 09-22-2005, 12:08 AM   #5
JNUTZ
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Thanks for all the info, I ended up taking it off and selling it, and just ran the stock one.
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