Fiat Coupe Forum
- Founded by Kayjey & James Northam
- Funded by the Club for the benefit of all owners
Fiat Coupe Club UK
join the club
Fiat Coupe Forum
 
» Announced
    Posting images


» Related sites
    Main club site
    fiatcoupe.net


» External data
    owners listed
 
Who's Online Now
0 registered members (), 68 guests, and 1 spider.
Key: Admin, Global Mod, Mod
Forum Statistics
Forums64
Topics112,735
Posts1,331,415
Members2,026
Most Online731
Jan 14th, 2020
Top Posters(All Time)
barnacle 33,164
stan 32,112
Theresa 23,219
bockers 21,065
PeteP 20,819
JimO 17,917
Nigel 17,350
Jim_Clennell 16,601
RSS Feeds
Club Events
Club Information
Track Events
Rolling Road/RWYB
Social Events
Non-UK Events
Coupé Related Chat
Coupé Spotting
Coupé News/Press
Buying/Selling Advice
Insuring a Coupé
Basic FAQ's
How to Guides
Forum Issues
Technical Problems
General Maintenance
Styling
Tuning
Handling
ICE and Alarm
Coupés for Sale
Coupés Wanted
Parts for Sale
Parts Wanted
Group Buys
Business Forum
Other Vehicles for Sale/Wanted
Other Items for Sale/Wanted
Haggling/Offers
Ebay links
Other Cars
Other Websites
General Chat
Previous Thread
Next Thread
Print Thread
Dump valves #1661031
07/10/2022 09:28
07/10/2022 09:28

M
mooney OP
Unregistered
mooney OP
Unregistered
M



Hey guys, so sound is a big big part of the experience for me and most of you i imagine, what bovs do peeople run? Ive tried the baileys "style" dv26 from prosport/rspec/rudiemods on ebay, good sound but find they tend to leak simply because of the vacuum nipple being a seperate screw in piece, running a collins twin piston now which sounds ballsy as f***, either sounding like a whip cracking or pane of glass breaking, switching to the forge twin piston fmdv004 over the weekend among other jobs to do, anybody run this one? If so, how good does it sound if you've heard the other two valves before or even if you havn't heard the other two?

Last edited by mooney; 07/10/2022 14:01.
Re: Bovs [Re: ] #1661039
07/10/2022 13:37
07/10/2022 13:37
Joined: Mar 2007
Posts: 14,858
Auld Reekie
Edinburgh Offline
Club President, member225
Edinburgh  Offline
Club President, member225
I AM a Coop

Joined: Mar 2007
Posts: 14,858
Auld Reekie
Afternoon mooney, funnily enough we were just discussing this over our project car this morning, and the potential detraction in engine performance was mentioned.

On another note, since we have several overseas readers on this forum whose first language is not English it is helpful for them if we don't abbreviate too much. Perhaps you could edit your thread title from "bovs" to......

Thanks


BumbleBee back:)
Re: Bovs [Re: ] #1661043
07/10/2022 13:47
07/10/2022 13:47
Joined: Mar 2008
Posts: 5,011
highlands
jimboy Offline
Club Member 857
jimboy  Offline
Club Member 857
Forum is my life

Joined: Mar 2008
Posts: 5,011
highlands
I thought for one minute I tuned into a seventeen year old youths car forum…. laugh

Last edited by jimboy; 07/10/2022 13:48.

I'm an old git & happy with it,most of the time
Re: dump valves [Re: ] #1661044
07/10/2022 13:51
07/10/2022 13:51

M
mooney OP
Unregistered
mooney OP
Unregistered
M



It worked. Title changed.

Last edited by mooney; 07/10/2022 14:02.
Re: dump valves [Re: jimboy] #1661045
07/10/2022 13:53
07/10/2022 13:53

M
mooney OP
Unregistered
mooney OP
Unregistered
M



Lol yea im not far off twice that pal. I like the sound of a nice crisp sharp agressive valve thats generally associated with the rb and jz engines running the tial bovs which are exactly as i decribed.
When running alot of boost it makes it sound so much more kick arse.

Re: Dump valves [Re: ] #1661049
07/10/2022 14:24
07/10/2022 14:24
Joined: Feb 2006
Posts: 5,374
Essex
Trappy Offline
Club Member 1834
Trappy  Offline
Club Member 1834
Forum is my life

Joined: Feb 2006
Posts: 5,374
Essex
I have a Synapse Synchronic Diverter Valve. Fabulous piece of kit that really needs to be tuned to get the most out of it. I'll be sharing videos of the car when it's back and so will make sure I capture some of the noises when it's been properly tuned thumb


F****** b****** thing...
Re: Dump valves [Re: Trappy] #1661050
07/10/2022 14:31
07/10/2022 14:31

M
mooney OP
Unregistered
mooney OP
Unregistered
M



Okay sounds good. Thats an interesting choice of BOV for sure, iirc it works in similar if not same fashion to the hks ssqvs...? If so, can never leak under boost. Tho the sound is something to be desired for these synchronic and hks valves imo.
Paid 210 for my last genuine ssqv 4 valve. Big ol waste of time. Having to get a seperate 25mm mounting adaptor flange that doesnt even seal properly once the snap ring is installed to the point that your not supposed to be able to spin it once its seated properly. Still leaks.
Forge was 112 quid. Be here tomorrow smile

Last edited by mooney; 07/10/2022 14:35.
Re: Dump valves [Re: ] #1661053
07/10/2022 14:52
07/10/2022 14:52
Joined: Feb 2006
Posts: 5,374
Essex
Trappy Offline
Club Member 1834
Trappy  Offline
Club Member 1834
Forum is my life

Joined: Feb 2006
Posts: 5,374
Essex
I did a lot of research when choosing it and none of my key requirements were the sound it made tongue I wanted it to not leak boost, be reliable, have facility to recirculate, and be FAST. It did (and, I believe, still does) all of these better than anything out there on the market.

I seem to recall a video with one of the Synapse units set up on a rig in series with an HKS SSQ, and it dumped so fast that the HKS didn't even move. Possibly marketing nonsense as I can't find it now to confirm otherwise but it was certainly impressive stuff.

I had the Bailey DV26 originally and, later, the Forge DV006 and both were awful things in comparison. Constant maintence, rubber components that needed replacing etc.


F****** b****** thing...
Re: Dump valves [Re: ] #1661054
07/10/2022 15:03
07/10/2022 15:03

M
mooney OP
Unregistered
mooney OP
Unregistered
M



For me it has to be about sound. No point driving a quiet boring car. The forge is supposed to be the best twin piston when it comes to holding boost so its a no brainer for me aslong as it sounds the bollaxe. The dv26 defo did leak i noticed it from the vacuum reading i was getting at idle. Changed to the collins and the vacuum was reading higher.
Aa good as the synchronic is at holding boost i couldnt get on with its size and sound.
I may of seen that comparison video also during the time i just purchased the hks.
This fmdv004 valve is super simple and reliable no diaphrams no rubber crap to break, just two pistons and springs.

Last edited by mooney; 07/10/2022 15:05.
Re: Dump valves [Re: ] #1661056
07/10/2022 15:16
07/10/2022 15:16
Joined: Feb 2006
Posts: 5,374
Essex
Trappy Offline
Club Member 1834
Trappy  Offline
Club Member 1834
Forum is my life

Joined: Feb 2006
Posts: 5,374
Essex
It's the smaller DV I have, not the SB click to enlarge

I have a few other mods that help to stop mine being a quiet, boring car laugh


F****** b****** thing...
Re: Dump valves [Re: ] #1661060
07/10/2022 16:46
07/10/2022 16:46

M
mooney OP
Unregistered
mooney OP
Unregistered
M



Ohhh cool man. My exhaust is a 3.5 inch custom turbo back to what looks like a scorpion or toyosports backbox. But its not overbearing. Sounds great. Eith the conventional twin pistons i find the best of both in terms of sound is there. Part throttle dumps is mostly flutter and full boost is tiny flutter then the valve dumps ceazy loud.
The forge valve just arrived now yey. Ive got some work to do over the weekend on it should the weather clear up.

Re: Dump valves [Re: Trappy] #1661077
08/10/2022 19:20
08/10/2022 19:20
Joined: Dec 2005
Posts: 1,454
Kent
Submariner Offline
My job on the forum
Submariner  Offline
My job on the forum

Joined: Dec 2005
Posts: 1,454
Kent
Can't stand chavved up dump to atmos especially so on a Coupe.....innit tho.

Re: Dump valves [Re: ] #1661078
08/10/2022 20:26
08/10/2022 20:26

M
mooney OP
Unregistered
mooney OP
Unregistered
M



There's a difference between tuner and chavvy ricer and im not some chavvy teenager, I associate BOVs with high bhp jz and rb engines.

Re: Dump valves [Re: ] #1661079
08/10/2022 20:27
08/10/2022 20:27

M
mooney OP
Unregistered
mooney OP
Unregistered
M



Nothing chavvy about a forge motorsport valve

Re: Dump valves [Re: ] #1661080
08/10/2022 20:28
08/10/2022 20:28

M
mooney OP
Unregistered
mooney OP
Unregistered
M



Hks however very chavvy

Re: Dump valves [Re: Submariner] #1661081
08/10/2022 20:44
08/10/2022 20:44
Joined: Feb 2019
Posts: 231
Free State of Jones
clanger Offline
Making a profit
clanger  Offline
Making a profit

Joined: Feb 2019
Posts: 231
Free State of Jones
Originally Posted by Submariner
Can't stand chavved up dump to atmos especially so on a Coupe.....innit tho.


How about pops and bangs, comm'on bro.


E85
Re: Dump valves [Re: ] #1661082
08/10/2022 21:27
08/10/2022 21:27

M
mooney OP
Unregistered
mooney OP
Unregistered
M



Yes mapped pops n bangs are chavvy
When it happens naturally its great.

Last edited by Edinburgh; 09/10/2022 06:55. Reason: text edited due to offensive language.
Re: Dump valves [Re: Anonymous] #1661088
09/10/2022 07:57
09/10/2022 07:57
Joined: Mar 2007
Posts: 14,858
Auld Reekie
Edinburgh Offline
Club President, member225
Edinburgh  Offline
Club President, member225
I AM a Coop

Joined: Mar 2007
Posts: 14,858
Auld Reekie
Mooney has requested his account be deleted (for the second time)


BumbleBee back:)

Powered by UBB.threads™ PHP Forum Software 7.7.1
(Release build 20190129)
PHP: 7.3.33 Page Time: 0.014s Queries: 14 (0.006s) Memory: 0.8128 MB (Peak: 0.9457 MB) Data Comp: Off Server Time: 2022-11-30 22:55:32 UTC