Boost Control Advice

[craigdmcd]

Looking for a little advice on raising and controlling the boost on my 89 Legacy RS. I've got a VOS chip, but it is one for a car with a VF turbo. I have upgraded recently to a TD05 (which Adrian Vos also does a chip for), but have been advised that if I control the boost, then the chip doesn't need to be changed.

What methods of boost control are available - I'm not particularly bothered about instant adjustment, or flashy dash displays, just something that controls the boost accurately. Price is important, but I'm more interested in something that won't let me down.

Your thoughts please ladies and gentlemen.

Craig

[b4z]

Looking for a little advice on raising and controlling the boost on my 89 Legacy RS. I've got a VOS chip, but it is one for a car with a VF turbo. I have upgraded recently to a TD05 (which Adrian Vos also does a chip for), but have been advised that if I control the boost, then the chip doesn't need to be changed.

What methods of boost control are available - I'm not particularly bothered about instant adjustment, or flashy dash displays, just something that controls the boost accurately. Price is important, but I'm more interested in something that won't let me down.

Your thoughts please ladies and gentlemen.

Craig

can u not use a boost presure valve or a bleed valve. only thing with the bleed valve though the boost will change with the temp

[arch]

AVCR

[craigdmcd]

AVCR

A bit too bling for me Arch. I don't see the point in paying for something with such an advanced display that I don't actually want, but if I do go for the whole "Fast and Furious" look, then this will be at the top of my list with a Nitrous Kit.

Has anyone used a GFB Atomic or Reactor unit - look roughly what I want?

[arch]

Craig you could just go for a dawes device then these can be had for around £30 - £40. The AVCR is an accurate and reliable way of controlling boost tho but I agree its not the cheapest I may even have a a dawes lying around I cant remember if I sold it or not will have a look over the next couple of days.

Edited April 12, 2009 by Arch

[Big 'D']

For controlling higher than std boost pressure the Apexi Avcr is second to none, ok it looks flash but all you have to do is set it up and it does the rest for you, on the other hand like mentioned already a decent manual boost controller like the Turbosmart Boost Tee, or Dawes device when set up correctly on a cold day would suit your needs. Using the std boost control is also an option but I would only recommend using a 3 port solenoid for this as the 2 port is rubbish at higher than std boost levels, obviously a remap would be required for any increase in boost.

Cheers Iain

[fai17]

AVCR

Thats what i would reccomend too...no point in half controlling the thing

[wilky]

The first stand alone boost control unit I used was a greddy Profec B 2. It came with a solenoid that replaced the standard one, the wiring harness and the controller which had high boost set by you, low boost like wise and other low tech nif naf and trivia I never bothered with.

My boost gauge was fairly accurate and whilst mapping on a possum link ecu the boost reflected by the greddy and the gauge were both accurate.

It was cheap and cheerful and did exactly what it said on the tin, and could be hid away in a pocket or a glovebox.

I think these Greddys are fairly cheap now. It could be turned up or down. Or switched off.

Callum W

[craigdmcd]

Craig you could just go for a dawes device then these can be had for around £30 - £40. The AVCR is an accurate and reliable way of controlling boost tho but I agree its not the cheapest I may even have a a dawes lying around I cant remember if I sold it or not will have a look over the next couple of days.

It would be appreciated if you could have a look Arch, but no worries if you don't, as similar products from Turbosmart and GFB seem good value and I know the quality from them are good. I'm also looking at the 3 port boost solenoids from both Perrin and Turbosmart - are they both of similar quality?

Iain, the VOS chip already does a quality remap, so am just looking to get the boost set properly. I need the VOS chip, because as far as I'm aware, no other moderately priced system controls the chargecooler. No matter what I end up fitting, the car will be going to Hypertech and geting checked for safe running on the rolling road. I also have a KS-3 knock analyser to watch for any nasty surprises.

I know what you are all saying about the AVCR, but I don't really need anything that extensive at the moment (until the big round of upgrades comes - but that's a while away yet)

Thanks for all the replies so far, keep them coming.

Cheers

Craig

[craigdmcd]

The first stand alone boost control unit I used was a greddy Profec B 2. It came with a solenoid that replaced the standard one, the wiring harness and the controller which had high boost set by you, low boost like wise and other low tech nif naf and trivia I never bothered with.

My boost gauge was fairly accurate and whilst mapping on a possum link ecu the boost reflected by the greddy and the gauge were both accurate.

It was cheap and cheerful and did exactly what it said on the tin, and could be hid away in a pocket or a glovebox.

I think these Greddys are fairly cheap now. It could be turned up or down. Or switched off.

Callum W

Thanks for that Callum, I hadn't actually thought of that one - I'll have a look.