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FMIC Recirc valve info

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Old 19 April 2011, 04:20 PM
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tcmotonut122
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Default FMIC Recirc valve info

im ditching my vta valve and going recirc,

my car already had the vta valve and fmic when i got it so i dont have any of the standard recirc stuff,
just wondered if anyone else has got a recirc on a fmic setup to shed some light for me, piping and valve recomendations

ive been looking at forge recirc valves,

the cars a 1993 ra
Old 19 April 2011, 05:10 PM
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musso2010
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Contact Harvey on here. He deals with front mounts and will stock what you need.

Other than that, depending on what turbo you have you could run without a dump valve like i do.
Old 19 April 2011, 07:13 PM
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leecalcars
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Me too, I have an autobahn88 fmic with a vf48 and no valve recommended by Duncan race Dynamix
Old 22 April 2011, 05:43 PM
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harvey
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What turbo are you running?
Having run without a BOV on several cars in the past I would not advise running without a BOV and certainly won't do that on any of my own long term cars although it might be a short term solution.
With a Maffless ECU my choice is Forge VTA everytime. With a MAF sensor then the choice is the OE BOV with a flange adaptor if necessary or a Forge Recirc BOV.
Running without a BOV seems to be a bit of a fad at present but consider the purpose of the BOV and what happens when you do not run one.
The purpose of the BOV is to vent pressurised air between the turbo, through the intercooler and joining pipes and in to the inlet manifold when you lift your foot off the throttle. This is only a momentary pressure release on throttle lift off. If you do not have a BOV of some sort, when the throttle flap is shut the built up pressure will run backwards through the system to the turbo compressor. Over time this cannot be good for the turbo and on some fragile turbos, particularly those that are roller bearing it will be a bad thing.
The biggest advantage of running without a BOV has to be when the existing BOV is not properly set up or leaking. It is far better to get an efficient BOV than run without.
Old 22 April 2011, 07:51 PM
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mickywrx
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I run an FMIC, with the OEM re-circ.

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Just measure the size pipes you need, I can't remember them, sorry, and ebay is your friend.

You'll need an angled reducer for the take off from the hard pipe, I got mine from Hoseworld, reasonably priced and quick delivery. Quality is spot on too.
Old 23 April 2011, 10:42 AM
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Or go to a scrap yard and pick up for very little money the original setup.
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