hoskib

iTrader: (1)

seems a bit of a difference of opinion as to the damage these do to your engine as opposed to a recirc. but i REALLY want one.

i can fully understand the stance people like greasemonkey take with this type of d/valve and don't get me wrong, armed with the info given it doesn't seem best to use one long term. but summers coming up and the old girl wants a treat.

it's a bit of a 'how long is a piece of string' question, but can i run a VTA d/valve for a short length of time and see no ill effects, or does it harm the engine from the very start of using?

i only do about 7k a year and i will probably get pissed off with it quite quickly anyway so it probably wouldn't be on the car long.

if it is a green light, can anyone recommend a good VTA d/valve? (especially one with no maintanance from me eg/spring changes etc.)

cheers

Bob Rawle

Its not a question of harm, fit it and you will soon see wether the car "likes" it or not especially on part throttle with boost, if you experience jerkiness on gear change, bad idle, dipping idle etc then its the bov, a well set up aftermarket recirc is the way to go, they do need setting up to suit car and mods though, Forge are as good as any. As a matter of record (and I am well known for saying this) a vent to air bov is not good news on a car using maf based management, if using a speed/density ecu then its a different thing. benefits from a recirc are improved pickup on gear shift and inproved part throttle response, makes no difference to wot though.

bob

hoskib

iTrader: (1)

cheers bob, seems the VTA is not the way to go then. i don't want to risk ******** the car for the sake of a noise, as this seems the only advantage with it.

leading on from that, i can't say i have any probs with the o.e. recirc d/valve (on a ukMY99) but do experience a bit of jerkiness with the car(although i thought this was more to do with a full decat?)

could you explain a bit further into the 'setting up' of an aftermarket recirc d/valve please, i thought it was just a case of bolt it on and off you go?

and maybe give a recomendation for my car? (full decat,green panel filter,TEK2) please?

many thanks.

Brun

Just do it! 100's of Scoobynet users run them without issue including myself
MY99, full decat, k&N 57i, forge vta and Bob Rawle Tek3

EddScott

Not suggesting for one minute you should get a BOV. I have one and am in two minds about it. I quite like it but it can be intrusive.

I've just adjusted my driving style to change gear without setting it off when I don't want to - just come off boost then change gear = no chuff noise.

Brun - what figures is your car making? I have MY00 full de-cat (Magnex & Miltek), K&N Panel, HKS BOV and PE TEK3. Just wondered if it was worth making any changes and seeing if Bob Rawle will map it - just to see if it gives it a bit more oomph so to speak.

Andy.F

You can always fit a sequential dump valve such as the HKS, this allows recirc on light throttle but a loud woosh dump to atmosphere when lifting off sharply at high boost. When set up correctly, these drive like a normal DV (bit expensive though !)

Andy

Brun

Eddscott - I don't think a remap by Bob would be a financially sound idea. You may get a couple more ponies, but as you are already Tek'd, i feel you'd be dissapointed after a £700 outlay.
My car made 257 Bhp with a lovely torque figure of 252 at Well Lane. Within 2 days of that happening i began to feel the clutch slipping, so i'm not sure if the car is worth more on the new clutch or not