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Old 04-27-2004, 11:06 AM   #1
Leonardo
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Default Boosting problem with new stage 4/UTEC

I got a basic map for stage 4 plus FMIC and it boost about 10psi till 5K rpm's and from there it opens up to whatever I set it.

Feels like a two stage nitrous system
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Old 04-27-2004, 05:38 PM   #2
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bump for my por car!
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Old 04-28-2004, 08:04 AM   #3
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sux!
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Old 04-28-2004, 08:15 AM   #4
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Are your parameters set correctly? Double check them.
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Old 04-28-2004, 10:03 AM   #5
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Got a log to share?
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Old 04-28-2004, 12:07 PM   #6
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Leo: If you can, take screen shots of the hyperterminal windows on all the seperate parameter submenus for me, as well as page one and two of your boost map in question.

Thanks bud!

Jorge (RiftsWRX)
www.ProjectWRX.com
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Old 04-28-2004, 01:32 PM   #7
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Thanks!

I will but I need to find a laptop to hook up!

It was a Stage 4 map that was kinda modded to work with FMIC.

Since we have no AWD dyno here, everything is road tunned.
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Old 04-30-2004, 11:41 AM   #8
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One thing I forgot to mention is that boost is controlled by a Profec-B Spec 2 (the old one)
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Old 04-30-2004, 11:47 AM   #9
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hahahaha... well that has nothing to do with the UTEC then

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Old 04-30-2004, 09:44 PM   #10
Leonardo
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weird

with the profec on or off it does it. could it have something to do WITH the Utec not being mapped at all with the VF34? Like it spools up but when the 5k rpm's come in, it spins the turbo as it should?

I might just replace the Profec with the TXS MBC to see what happens.

The tunner will tune it on tuesday but it's just driving me wild till then cuz I love how it feels above 5K
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Old 04-30-2004, 09:55 PM   #11
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Sounds like your running of wastegate spring pressure. This basically means that the boost control device isn't venting enough air from the wastegate actuator vacuum tubes. This makes it so the wastegate opens automatically. You might wanna look into hooking the boost control and boost control hoses up correctly. If you're running the utec for boost control like you should be since it can be dialed in better for use with the utec(imo), you might wanna do a search on "brass restrictor". If everything's hooked up correctly, try to get your boost controller to vent a lot more air from the vacuum tubing then it's venting right now.

peace

Last edited by hippy; 04-30-2004 at 10:01 PM.
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Old 05-01-2004, 07:30 AM   #12
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Is the brass restrictor the one that is close to the turbo outlet port? Lithe the one inside the hose? I took that off when switching hoses. Shoould I put it back on?

I'll check the hose connections.

Leo
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Old 05-01-2004, 10:00 AM   #13
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Quote:
Originally posted by Leonardo
Is the brass restrictor the one that is close to the turbo outlet port? Lithe the one inside the hose? I took that off when switching hoses. Shoould I put it back on?
Leo
si senior....it's the one in the hose between the t and the turbo.

peace
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Old 05-01-2004, 10:02 AM   #14
Leonardo
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So, should be in place or not? Can that be the whole problem?

Just checked all the hosing and nothing seems to be wrong.
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Old 05-02-2004, 07:36 AM   #15
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Thanks hippy!

PROBLEM SOLVED!

Damn little hose with the restrictor in it was the problem. now boosts like mad
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Old 05-02-2004, 08:49 AM   #16
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anytime.....now ya don't need to wonder why that little thing was in there.

peace
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