Brun

The TD's are stronger than VF's basically.
Back in the day when i had a Scoob, i had a VTA which felt no different to the OE item when driving. It did however make sure the fueling was interesting which in turn made for some fantastic flames

Myles

iTrader: (40)

Having scratched the dv itch, I have wrestled with the I/c and pipes to refit the oe dv. I couldn't get the ridiculous clip back over the pipe underneath the dv, so the pipe is on but not clipped. Is this going to be an issue?

wrx9181

iTrader: (2)

what about us with fmic s where did the blanked off pipe go too ???

DJ_Jon

iTrader: (7)

Had a chav valve on my old RS turbo, grown out of that now, StickyMicky is right, there are some right plonkers up in the NE that love their chav valves

Myles

iTrader: (40)

Was that an answer to my question?

gmanwrx

Just fitted a HKS SSQ to my v6 type r and love the sound, dosnt drive any different than it did before. Each to their own and will prob put the standard one back on some day.

djandyg

iTrader: (2)

I thought the recirc BOVs worked ok on them as opposed to a normal dump valve?

rookymatt

iTrader: (15)

They do, but you don't get the whoosh/pissh noise on throttle lift off.
Unless you have an induction kit fitted.
The vta ones do make the car run rich as the valve is venting metered air out of the system, causing the car to over fuel to compensate.

wrx9181

iTrader: (2)

no mate im asking too but like you ive been ignored

rookymatt

iTrader: (15)

There are two types of valve
1.a recirculation valve, that puts any dumped boost on throttle lift off back into the intake tract, keeping the air system secure so the ecu can fuel accurately

2. a vent to atmosphere valve, that vents any excessive boost on throttle lift off directly into the air, putting air that has already been acounted for by the ecu out of the intake tract.
The ecu will see this as an air leak due to the air beeing essentially leaked out. Thusly the ecu will add more fuel to the mix, resulting in the engine running richer thsn it really needs to be.

It's designed with a recirc valve, it should have one. If you are running big boost and keeping the original design intake tract, just fit an uprated recirc.

53

iTrader: (41)

FMIC piping has DV outlet connection for which you can use OEM or aftermarket recircs. Mine is welded to hold the simtek sensor and thus running a DV delete. Mapped mafless and to expect the AFR. Makes for a more responsive gear change. Not a fan of VTA's for the simple reason OEM run better on standard cars.

rickya

iTrader: (18)

There is also the twin vent ones which IMO are better than the std blow off valves. I have the one below & it can be set to open at whatever pressure you set it to.

http://www.airpowersystems.com/wrx/blow.htm



"Ports Closed - Under open throttle conditions where turbocharger boost pressure is required, the bronze BOV piston is held shut in order to supply the maximum amount of charge air to the engine
Primary Port Open - Under light load conditions where the throttle opening has been reduced or shut, the piston moves partially up the bore travel and opens the primary port to vent charge air back into the inlet tract. This ensures smooth engine operation and alleviates the rich condition and subsequent backfire when utilizing a BOV construction that vents100% of charge air to atmosphere.
Both Ports Open - Under high load conditions where the throttle has been shut, the piston travels fully so that both the primary and the wide mouth secondary ports open to vent the maximum charge air possible. Air vented through the primary port is routed back into the inlet tract. In addition, additional excess charge is air vented through the wide mouth secondary port to atmosphere"

dan83590

The best modification is to refit the oe dump valve and every time you change gear shout I'm a pr1ck out of the window. Engine runs sweet and you still get the stupid noise.

The Rig

iTrader: (13)

Thats funny

i can just see it now, the torrets scoob round town

DaveBeck

iTrader: (12)

The age old debate of whats better

Ive had a recirc, blanked off and VTA one on mine and the original recirc makes for a better smother gear change imo. I now have a VTA one on, that only dumps boost when im at high boost (Turbosmart wound right in) This seems to work well.

Im interested in the fuel saving though so next fill up i will swap over as 30 miles is alot when im only getting 240 to a tank

Wagon wheel eater

MY first scoob! can't believe people dont like the noise? I love driving this car. its a theatrical experience, burble, burble, vroom, whoosh, clatter, pop, vroom! Its one of the reasons I went for a scoob, its makes me feel... the last car to give me such a buzz was classic tuned mini when I was young...
I love the reactions I get from friends and family when they first ride in it ... if the noise doesn't bring a smile the acceleration always does...

richgreenscooby1

iTrader: (2)

Well said

im glad to see the scoobies still making new owners smile

p.s i love my d.v its well loud with fmic

scooblee

Im not a chav and have a bailey dumpvalve fitted, always had them fitted to my turbo cars and ive had a few, only car i did not fit one on was my RS500 Cosworth, my scoob is my daily drive but also my track tool, i just find the standard car so boring.
Really liked the turbo flutter i got on the cossies through the induction kit but dont have one fitted to the scoob, do you get that on a scooby with an induction kit fitted?

DaveBeck

iTrader: (12)

yes mate

scooblee

anyone have the bmc carbon cold air intake system on their cars? mine is a 99 uk turbo and just wondered what they were like, with a bit of flutter through the induction the dumpvalve will be off

Glowplug

iTrader: (8)

Just me and you then eh

Thats a good enough reason to bin it


I have the stronger spring fitted in my Forge, so it doesn't vent on every let off whilst running round town, just when giving it some on the overtake

bengreen85

what happens if ur dv comes off your fmic hard pipes like mine?
wat sort of noise will i get with standard dv back on with fmic+ik?

Sabas

iTrader: (22)

did someone say you can use a oem re-circ valve on a FMIC?