Diverter valve... forge 007, forge 004, forge splitter?!

[austinjmiller]

Ive been reading a million posts on all of these.... I want the "whoosh" sound of a BOV, but I don't want to freak my car out like most people are saying it does.... I need to upgrade from a stock DV!!!

1) I drive a 2002 A4 1.8T with a stage 1 APR ecu upgrade, soon to be test pipe and a few other little things.


2) What do you run/recommend and why?

I want to stick with forge just because it seems more people like them than any other brand....

[EBG 18T]

why do you want to change the OEM 710N?

The OEM valve works well.

[Turbavanttro]

In my opinion the 710N is your best value for a DV, you can find them online for $35 and could blow 5 of them before you recoup the $$ on a aftermarket valve.

Two 710Ns on S4s have been good for 700AWHP and 35 pounds of boost.

^here's some good perspective.

that aside, if you want a DV you can install and forget about, the forge 007 PA is tough to beat.

[heywier427]

if you want the woosh sound, the forge splitter is great. 10k so far no codes. but one of the allen screws that hold the bottom on came loose and fell out, so im taking mine apart this weekend and locktighting the bitch! by the way, mine is a knock off, doesnt have the forge name on it, but i compared it to a "real" forge one, and its definately made by the same manufacturer. saved me 70 bucks. works for me.

http://cgi.ebay.com/VW-AUDI-1-8T-SPL...item5888cb6369

[onlyaudis]

I picked up a couple of these a year ago, and they have performed flawlessly with both my stage 2 A4 and my wife's stage 1 TT. with all the heat in there, I like the idea of something other than a plastic part with a thin rubber diaphragm controlling my boost.

http://cgi.ebay.com/ebaymotors/Diver...#ht_500wt_1182

[DonnieDark0]

i wonder how these work on b5 s4's :D

[EErie B6]

i wonder how these work on b5 s4's :D

In my opinion the 710N is your best value for a DV, you can find them online for $35 and could blow 5 of them before you recoup the $$ on an aftermarket valve.

Two 710Ns on S4s have been good for 700AWHP and 35 pounds of boost.

^here's some good perspective.

that aside, if you want a DV you can install and forget about, the forge 007 PA is tough to beat.

answered.

[austinjmiller]

Thanks for all the insight... Pretty much all I want it that whoosh sound haha. My OEM diverter valve just isnt cutting it right now just because it feels like im losing some boost, and they recommend upgrading to the stock TT valve which is $50. So I figure why not spend a few extra $$ and get one I can rebuild if it comes to it.

[Turbavanttro]

my forge 007pa cost me $90 brand new directly from forge. for the nominal cost its a no brainer. get it and fugetabotit

of course you might have to actually go to a car show where forge is sponsering, but thats not too hard to do.

[Pr0n]

The Forge isn't exactly "set and forget" as you should check & possible re-grease/service it every 10,000 miles or so.
http://www.forgemotorsport.com/valve_service.pdf using http://www.forgemotorsport.com/conte...product=FMDVSK

[waldo1324]

The Forge isn't exactly "set and forget" as you should check & possible re-grease/service it every 10,000 miles or so.
http://www.forgemotorsport.com/valve_service.pdf using http://www.forgemotorsport.com/conte...product=FMDVSK

there ya go! i love my 007

[kneel]

i have the forge splitter and its getting really annoying. After i do my motor and the DV goes back on i'm taking the horn off and caping it. Cant stand the swoooooosh sound anymore

[nikkobdenis]

i have the forge splitter and its getting really annoying. After i do my motor and the DV goes back on i'm taking the horn off and caping it. Cant stand the swoooooosh sound anymore

Had my splitter valve for 10k+ and no issues. I also capped mine after about 2k miles. Just get the 007/

[texasboy21]

when I ran a 710N BPV it wasnt quite, I wouldnt say it sounded like a BOV but it had an audible note

[austinjmiller]

when I ran a 710N BPV it wasnt quite, I wouldnt say it sounded like a BOV but it had an audible note

Yea my stock 710N is loud, but its starting to wear out. It almost sounds like the whistle from the 007 just not as loud

[heywier427]

serviced the splitter today, and still lovin the woosh!

[austinjmiller]

serviced the splitter today, and still lovin the woosh!

Good cause mine shipped today!

[Dake]

Just to clarify, this isn't a Greddy-bird-tweet sound is it?

Are you guys getting this sound off an otherwise stock engine bay, or are there more ingredients to the sound?

[Dan[FN]6262]

I have a 004 and an APR R1 DV sitting on my floor. I'm trying to get rid of the R1 DV

[EErie B6]

I have a 004 and an APR R1 DV sitting on my floor. I'm trying to get rid of the R1 DV

you should put them on a shelf.

[A4SUM]

I have a 004 and an APR R1 DV sitting on my floor. I'm trying to get rid of the R1 DV

Interested in the R1, how much psi does the spring handle? PM me.

[Kwarner]

Interested in the R1, how much psi does the spring handle? PM me.

That post was from August, 2010...

[austinjmiller]

Had my splitter for ~3k miles and no problems! Ran fine with my K03s and runs fine with my GT2X!

[trueno429]

my splitter barely wooshes and im stage 3 running 18 psi...i had it clicked to 0 and then all the way tight and it still barely makes a noise. I've had this for 3 years and i recently serviced it

[MmmBoost]

my splitter barely wooshes and im stage 3 running 18 psi...i had it clicked to 0 and then all the way tight and it still barely makes a noise. I've had this for 3 years and i recently serviced it

The splitter is not adjustable for how much gets recirculated and how much gets dumped.

The adjustment on the splitter is to match the amount of boost you're running.

[austinjmiller]

Mines pretty loud even at stage 1 I thought it was loud...

[MmmBoost]

Mine was the perfect volume when I was stage 1. It was too loud when I went BT. I sold it and bought a 007 again.

[austinjmiller]

Oh and MmmBoost... Your build is AMAZING def. one of the best builds ive ever seen.

[MmmBoost]

What does the 007 sound like? I have a friend that has a "007" off ebay that compares to the Forge...

My 007 is pretty loud with my aluminum intake. Hard to describe the sound..... It sounds like a blasting/crashing of air. The splitter was much more of a whoosh.

Oh and MmmBoost... Your build is AMAZING def. one of the best builds ive ever seen.

Thank you :) Glad you enjoyed following along.

[tapA4]

Mine was the perfect volume when I was stage 1. It was too loud when I went BT. I sold it and bought a 007 again.

What did you have yours set at? Did you leave it at 50-50 % out of the box? And how many clicks did you tune to adjuster to? (based on this http://www.forgemotorsport.com/media...stallation.pdf)

[MmmBoost]

What did you have yours set at? Did you leave it at 50-50 % out of the box? And how many clicks did you tune to adjuster to? (based on this http://www.forgemotorsport.com/media...stallation.pdf)

Volume is not adjustable. It depends on your intake design and boost level. The adjustment is for spring tension.

[tapA4]

Volume is not adjustable. It depends on your intake design and boost level. The adjustment is for spring tension.

Oh I gotchya. Well did you adjust your spring tension at all?

[austinjmiller]

What does the 007 sound like? I have a friend that has a "007" off ebay that compares to the Forge...

[CoreyRS]

ive had the Forge Splitter for 2 years...no codes no problems. nice sound.

[Shayneduboulay]

I have the forge splitter and it blows off really loud at full boost on Revo stg.1 I love the sound though!!

[bigblue]

I blew a brand new 710n up in a week on stage 2+

[walky_talky20]

For you guys running the splitter valve, or thinking of running them, I'd recommend you bypass your N249. The problem is that it commands the DV to open when it otherwise wouldn't be open (for pre-spool etc). With a DV this fine, but with the splitter valve this can cause it to leak at part throttle creating fuel mixture issues.

My brother was running the splitter valve and noticed his part throttle fuel trim changed by almost 5% after installing the splitter. You could even hear it leaking at part throttle. After bypassing the N249 (DV direct to manifold), everything is great. He loves it. Nice and "wooshy".

Just FYI.

[Agro]

I have the Forge 007PA, its great.
I do take it apart every 10k or so, clean it as well as I can in 2 minutes, then grease the piston and spring.

[austinjmiller]

AGRO! How does your APR K04 setup run? That was my first plan until I found a GT2X for a killer deal!

[Chillmode]

For those that service their DV's... What do you use to lubricate it? Motor oil?