More Boost

That spinning thing that makes all of the cool noises. OE and Aftermarket.

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Subtle
Third Gear
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Joined: Wed Apr 13, 2005 3:52 am
Location: Vancouver, B.C.

More Boost

Post by Subtle »

Since I installed the vf 34 the Profec B waste gate has been unable to work on the previous high an low settings.

Been mainly topping at 12 on the gauge. The SDS computer has the one-bar chip and to go higher I can get the 1.5 chip.

I'm told that on running at 16 boost it would be appropriate to use the AVC-R contoller and it should be set to decline to something lower as peak revs are approached.

Any comments :?:

Have a Happy New Year :smt030
Subtle (normally aspirated engines suck):
05 Legacy GT Wagon with Cobb chip.
62 Alfa Romeo Spider- had a 1.6 L with 80 hp, now 2 L with 160 torque. Curb weight 2050 lbs.
93 Leg Twgn fmic, vf34, etc. ((sold))
BXSS
Fourth Gear
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Post by BXSS »

If you have a profec b spec II you can make it taper boost down if you like by inputting a high (late) open wastegate (set-boost) value ( I believe its the set boost heading, but I havent played with one of these in 1 year).

If you have the older model I'd just have it hold the value you want it to taper down to.

I'm not really sure if that helps or what info you are trying to find out.
94 Legacy SS
96 Impreza OBS
99 Impreza OBS-T
04 Sienna XLE Limited AWD
Subtle
Third Gear
Posts: 981
Joined: Wed Apr 13, 2005 3:52 am
Location: Vancouver, B.C.

Post by Subtle »

The point is that the Profec is not working and the gate is opening on the spring only.

Has anyone had any experience with the AVC-R controller???
Subtle (normally aspirated engines suck):
05 Legacy GT Wagon with Cobb chip.
62 Alfa Romeo Spider- had a 1.6 L with 80 hp, now 2 L with 160 torque. Curb weight 2050 lbs.
93 Leg Twgn fmic, vf34, etc. ((sold))
tmarcel
First Gear
Posts: 138
Joined: Sun Nov 05, 2006 2:55 pm

Post by tmarcel »

Subtle wrote:The point is that the Profec is not working and the gate is opening on the spring only.

Has anyone had any experience with the AVC-R controller???
The AVCR is nice and offers a bit more than the Profec. However, if it is suddenly not responding after a turbo change, I would look into the boost hoses being improperly routed, wiring to the solenoid not intact, etc. It shouldn't be an issue all of a sudden.
1.) '02 WRX-2482cc-TD06H-20G-FMIC (just sold)
2.) '90 Legacy-2.5 turbo, VF39, Haltech E8 in-hand - waiting for the 5mt swap
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