mphlly

How loud is the forge dump valve I am looking for a loud one

adz556

iTrader: (5)

Slight thread hijack but following on, I have a japspeed front mount I'm collecting on Saturday...... What pipe work/valves do I need to buy to get it plumbed in right in addition to what comes in the kit please?

rich_g3

Lol people calling the dump valve chavvy are probably sitting in their little old classics with a huge body kit and massive bean can sticking out the back

mphlly

All bailey dump valves are out across the UK due to factory refit, guess I need to start my work with the exhaust Flamer kit.

Fudgey

iTrader: (1)

Ah, after reading this, when driving my uk300 quick, when changing from second to third at high revs i get a kind of hesitation, bit like a momentary flat spot i guess and the shifts are not that smooth. i just put it down to only having the car 2 weeks and being capable of driving it properly yet lol.

its got the std recirc dv on it, car is completely std other than the ppp exhaust and ecu upgrades, its running 240bhp and 227lbft at the mo.

to have a quick look to see if its the dv causing this, or just my lack of gear change ability if i were to leave the dv in place and just disconnect the vac hose and block it off, would i then see the recirc open under load? or will this little test be sufficient to see if it eliminates the gear shift issue?


as if it does, ill remove and blank the dv all together. im quite partial to the chatter sound lol, but will have to remove the resonator box to get the most from it...
is the TD04 that i think i have (2001 uk300) ok to go without a DV? i think they are, but not really looked into it!

cheers for any info!

tubbytommy

iTrader: (20)

you have the standard dv so it wont be that, check for split pipes etc.
im wouldnt run dv less on your car as the turbo wont like it and not last too long.

Fudgey

iTrader: (1)

ok cheers mate. i thought the TD04 was a relatively strong turbo?
I dont think there is a leak as 2 days after purchase i put it through an mot and while there (circuit motors castle combe) i got paul to stick on the rr for a quick check over to make sure all is well.

it peaked at 15psi and dropped to 8psi at higher revs - i have no idea if thats normal or not tho lol

over 6 runs it consistently made between 245-251bhp and 225-231lbft, torque is down a little as i think it should be 260lbft on the prodrive map. but that could be the fuel it was on, esso super 97ron?

when i get the chance ill have a look under the bonnet and see whats what.

cheers

tubbytommy

iTrader: (20)

id run it on 99 ron fuel and get a proper remap as the ppp map isnt great.
im not sure about the ppp map on a wrx but im pretty sure the minimum fuel is 98 ron this may explain why your slightly down on power.
id run a few tanks of 99 ron through it and try it again on the rr.

urban

iTrader: (1)

Prodrive maps generally never made the claimed figures

Fudgey

iTrader: (1)

its got tesco 99 in it at the mo, as i wouldnt have got it to the nearest shell for vpower lol

it does state that you can use it on 95!! but i wouldnt ever do that.

the ppp map was very rich at the top, 9.something AFR

tubbytommy

iTrader: (20)

im not sure on the wrx but my sti has a sticker on the flap about 98 ron minimum.
id use 99 to be sure on your car.
personally id get a custom remap on 99ron fuel it will make a bit more power but more importantly make the cars power delivery much better.
nothing wrong with tesco 99, my car was mapped on this and runs fine, shell may be better but there isnt one local to me.

Fudgey

iTrader: (1)

urban, i have 4 dyno plots lol, its not far off!

to add, the car is my daily and i dont really want to mess about with it much. also in standard trim it will probably be worth more in the future should i choose to sell it.

its possible that with a decent remap it could be slightly better on fuel, but knowing me, if it went faster, id drive it faster lol.

who do you guys use for mapping? im near castle combe and dont know of many places around here. the guy at circuit motors was trying to sell me a remap, but it was something like £650?? needs a board adding to the ecu to make it mappable or something.

chocolate_o_brian

iTrader: (22)

Fudgey

iTrader: (1)

thing is, if i were to pay for a remap, it would get expensive as id want at least 300hp lol. so injectors, fuel pump and what ever else is needed lol

tubbytommy

iTrader: (20)

i asume you have a blobeye or bugeye, if so it needs no board adding and you can get an open source remap from someone like dynamix for around £350.
if someone has told you that you need a board adding id avoid at all costs as he is a bullsh1tter and god knows what he would do to your car.

tubbytommy

iTrader: (20)

you would need a new turbo etc for that.

with your current standard spec you should see about 265 ish give or take a few bhp and up to 280 with a decat exhaust
its not the top line bhp with a custom remap though its how much better the car delivers its power.

Fudgey

iTrader: (1)

yes is a 2001 bug. the guy is a dastek dealer, and my experiance of them some years back was that they add a 'uni chip' board to enable them to alter the map.

not sure exactly if that was what he would do mind.

but i know i wont be paying that lol. are dynamix just a generic map?

i doubt for £350 it will be live mapped lol

Fudgey

iTrader: (1)

that is of course very true, but if were to go that route, id do it properly lol

tubbytommy

iTrader: (20)

open source remap and yes he maps on the road.
he has mapped both mine and my gfs car (hers is a bug wrx with a decat only and that made 278 bhp)

no chip needed, id avoid your dealer as he doesnt sound like he knows a lot about imprezas.

classic Subaru Si

Are you taking the p1ss??

Torquemada

Just start a thread yourself on the topic you want to discuss, why add that to a thread about dump valves?

There must be a dump valve thread posted almost everyday, a sticky is needed!

Torquemada

lol, ahhh it all becomes clear now

lewisdj

Just keep thae standard DV, and dont run the risk of installing an aftermarket on. It will more than likely cause boost leak and poor running, and loose power.

Fudgey

iTrader: (1)

Cheers for the info tommy. if i feel the need, ill look into it lol

RA Dunk

What you want is the biggest loudest one you can fit under the bonnet, I've never seen this but have heard it's true that some people fit them so big the can hardly close the bonnet, how cool is that?

Tidgy

99 ron only would you give a thorobred race horse second rate oats?

DV are personal choice, i like them myself.

GFB do a double trumpet one, thats prob pretty loud, also will depend on how much boost there is to release

davefaedeen

if you want loud am selling my turbo XS DV on ebay at the moment and its the loudest on the market

"]https://www.scoobynet.com/subaru-par...xs-dv-vta.html

Tidgy

o, p.s. mapping is a total mine field and who you use is your own choice, some folks rate some mappers who are thought to be pants by others, also alot of partisanship on mapping systems and mappers.

personaly i would stick with ecutek, Pat Herborn is my mapper of choice.

Fudgey

iTrader: (1)

mapping is usually a matter of distance/time lol

personal choices are few and far between, but the ones id mostly consider are, in alphabetical order, not order of preference:


MA Developments (Basingstoke)
MSD (motorsport developments blackpool)
Norris designs (nearest to me in Melksham)
Reyland motorsport (Birmingham)
Will Pedley Racing (Leeds)

aside from Simon Norris, the rest are well known ford tuners. i know alan jeffrey does subaru in plymouth, but not had any personal experience of them.

Gear Head

iTrader: (2)

Is the search function not working? Seriously, another dump valve thread?

To the OP - In a nut shell:

Fitting a VTA dumpvalve is a bad idea. They have no positive effects and lots of negative effects. Plus you will look like a complete plonker.

Save your cash and give the car a good service.

Close thread?