Greddy Type S BOV Problems - Page 2 - Miata Turbo Forum - Boost cars, acquire cats.

Welcome to Miataturbo.net   Members
 


Prefabbed Turbo Kits A place to discuss prefabricated turbo kits on the market
Sponsored by:
Sponsored by:

Reply
 
 
 
LinkBack Thread Tools
Old 06-16-2007, 09:50 AM   #21
:(
iTrader: (7)
 
Join Date: Jul 2006
Location: nowhere
Posts: 8,281
Total Cats: 2
Default

whao lots of bling maybe your engine is unhappy with it not being chromed and refusing to run My gues is it is a leak with your connection hose.
magnamx-5 is offline   Reply With Quote
Old 06-16-2007, 09:53 AM   #22
y8s
2 Props,3 Dildos,& 1 Cat
iTrader: (8)
 
y8s's Avatar
 
Join Date: Jun 2005
Location: Fake Virginia
Posts: 19,038
Total Cats: 406
Default

Quote:
Originally Posted by tabs604 View Post
However, as soon as the revs drop the idle drops and it stalls.

That would be the AFM's fault. when you lift off the throttle, the air the AFM measured nicely exits the intake but the ECU provides fuel for it anyway. Car goes extra-rich and drowns itself.

i'm sure someone else will chime in saying they run a type S and AFM
y8s is offline   Reply With Quote
Old 06-16-2007, 10:01 AM   #23
:(
iTrader: (7)
 
Join Date: Jul 2006
Location: nowhere
Posts: 8,281
Total Cats: 2
Default

Yeah i forgot about that IF the AFM is still seeing the flow you need to recirc that **** for real. VTA+AFM is not the best combo
magnamx-5 is offline   Reply With Quote
Old 06-16-2007, 12:46 PM   #24
Junior Member
Thread Starter
 
Join Date: Jan 2005
Location: United Kingdom
Posts: 255
Total Cats: 0
Default

Damn...Not happy.

If i Recirc..it wont make that lovely sound...Right.

Forgot that Braineack dont use a AFM!

I have been doing some research on the net and it seems to be a common problem with Eclipse and Mazdaspeed Protege Guys.

I think it just takes some finer adjustment with the adjustment screw..

I took it out for a drive and got a real good video to doemonstrate the devine sound that BOV makes. The drive is not as smooth than it was with my HKS and I feel the car is runnign rich as it is popping.

Anyway the vid now!

My mate who has a RX7 took some footage earlier and now wants the same BOV. His car is the white rex parked on the right on the third pass in the clip.

Hope you like it cus I do. I keep annoying my girlfriend with the greddy bov sound.

http://www.youtube.com/watch?v=IPOEjAnQIlI
tabs604 is offline   Reply With Quote
Old 06-16-2007, 01:03 PM   #25
Boost Czar
iTrader: (61)
 
Braineack's Avatar
 
Join Date: May 2005
Location: Chantilly, VA
Posts: 72,835
Total Cats: 1,786
Default

sounds good. I couldn't get my BOV to not leak at idle with my AFM, so I was recirculated. I ran a 3/4" brass check vavle on it for a while, but just decided to recirc. it.

you could try this....not sure it the RS and Type-S have the same threading, they should:
http://www.atpturbo.com/Merchant2/me...egory_Code=BCS
Braineack is online now   Reply With Quote
Old 06-16-2007, 01:26 PM   #26
:(
iTrader: (7)
 
Join Date: Jul 2006
Location: nowhere
Posts: 8,281
Total Cats: 2
Default

Very F&TF man i like it. i want mine to be alot basier though still great job.
magnamx-5 is offline   Reply With Quote
Old 06-16-2007, 01:43 PM   #27
Junior Member
Thread Starter
 
Join Date: Jan 2005
Location: United Kingdom
Posts: 255
Total Cats: 0
Default

Quote:
Originally Posted by Braineack View Post
sounds good. I couldn't get my BOV to not leak at idle with my AFM, so I was recirculated. I ran a 3/4" brass check vavle on it for a while, but just decided to recirc. it.

you could try this....not sure it the RS and Type-S have the same threading, they should:
http://www.atpturbo.com/Merchant2/me...egory_Code=BCS
Does sound good. Cant get enough of it.

I will look into the anti-stall module but the greddy type s is rare in the uk so dont know what hope I have of getting it

Whats a check valve and what does it look like? Where does it go?

Also how do i recirc it? If I recirc it will it sound the same?

Sorry about all the questions. I will get there in the end.
tabs604 is offline   Reply With Quote
Old 06-17-2007, 03:12 PM   #28
Junior Member
Thread Starter
 
Join Date: Jan 2005
Location: United Kingdom
Posts: 255
Total Cats: 0
Default

Unfortunately its causing the car to run crap. The air/fuel guage has gone crazee and I have VERY BAD gas mileage.

I dont want to remove it cus of the lovely soun it makes. However I have removed it for now and put back my HKS SSQV. Runs fine now. Now idle dip. No Staling. Nowt.

There is no use me recircing this bov. If I could find out what a check valve is and what it does ...that would be great?
tabs604 is offline   Reply With Quote
Old 06-17-2007, 04:23 PM   #29
Elite Member
iTrader: (13)
 
cjernigan's Avatar
 
Join Date: Oct 2006
Location: Atlanta, GA
Posts: 8,147
Total Cats: 6
Default

The check valve goes on the BOV outlet. It keeps it from leaking at idle and at normal driving. That way all the air that is metered by the AFM gets to the motor so you don't run so rich. That ATP item looks nice, real clean install, it opens that rubber flap when under boost but stays closed under vac.
cjernigan is offline   Reply With Quote
Old 06-17-2007, 08:55 PM   #30
Boost Czar
iTrader: (61)
 
Braineack's Avatar
 
Join Date: May 2005
Location: Chantilly, VA
Posts: 72,835
Total Cats: 1,786
Default

some valves do a better job of sealing closed at idle than other....the HKS is one of them, the Type-S is not.

while it's idling, you can see the valve....take a look in at it and see what it's doing.

try it without the bottom port connected and see how it reacts then.

tighten the valve upa bit and see as well.

you shoudl be able to get it to a spot where the valve is sealed at idle. I figured it was just easier to recirculate....and for me, it was just as loud.
Braineack is online now   Reply With Quote
Old 06-18-2007, 04:49 AM   #31
Junior Member
Thread Starter
 
Join Date: Jan 2005
Location: United Kingdom
Posts: 255
Total Cats: 0
Default

My HKS is pretty much perfect. On the car now. No stalling problems or richness. But am BORED of the sound it makes.

Upon doing loads of research on the net. Its seems like the leaking at idle is a common problem with the greddy type s. People just end up recricing them or live with running rich and stalling.

I will try some testing later in the week by tightening it amd testing.

I already have an interested buyer in it too!

Also, I was thinking of taking out one of the springs. When I took it apart to clean it there were 2 springs inside. If I take one out would it not seal shut better on vacum?
tabs604 is offline   Reply With Quote
Old 06-18-2007, 09:44 AM   #32
Boost Czar
iTrader: (61)
 
Braineack's Avatar
 
Join Date: May 2005
Location: Chantilly, VA
Posts: 72,835
Total Cats: 1,786
Default

I believe I removed the soft spring.
Braineack is online now   Reply With Quote
Old 06-18-2007, 11:02 AM   #33
Junior Member
Thread Starter
 
Join Date: Jan 2005
Location: United Kingdom
Posts: 255
Total Cats: 0
Default

Ahh cheers. I will give this a go.

I will also take it apart tonite again and check the diaphram thorouhly for tears or hoels as resarch has shown this is a common cause of leakage at idle.

Also the greddy vendors in the UK sell these for like 60.oo. Now to me they would not be selling them is the membrrane splits and as the bov is used this is a possibility.
tabs604 is offline   Reply With Quote
Old 06-21-2007, 04:51 PM   #34
Junior Member
Thread Starter
 
Join Date: Jan 2005
Location: United Kingdom
Posts: 255
Total Cats: 0
Default

Found somthing on the net on the 'single spring mod'.

http://www.evomoto.com/tech_info.php?tPath=1&tech_id=7

May be of help to others with stalling problems.
tabs604 is offline   Reply With Quote
Old 06-21-2007, 04:56 PM   #35
Boost Pope
iTrader: (8)
 
Joe Perez's Avatar
 
Join Date: Sep 2005
Location: Chicago (Over two miles from Wrigley Field. Fuck the Cubs. Fuck them in their smarmy goat-hole.)
Posts: 26,317
Total Cats: 1,914
Default

Quote:
Originally Posted by tabs604 View Post
Found somthing on the net on the 'single spring mod'...
I did exactly that (removed the center spring) with the cheap knockoff Greddy unit that I recently replaced by ailing FM BOV with. It causes the valve to be slightly open at idle, so I lathed a small adaptor to replace the whistle-horn that it came with and stuck a filter on it. Won't work for the AFM crowd, but in this condition the valve is very smooth and responsive, no flutter, no chirp, just a nice quiet *psssshhhhh* when I shift.
Joe Perez is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Back to Stock Part Out!! Turbo Parts, MS2 Enhanced 01-05, Suspension, and MOAR! StratoBlue1109 Miata parts for sale/trade 16 10-02-2015 10:39 AM
Leaky Wilwoods mx592 Suspension, Brakes, Drivetrain 1 10-01-2015 01:45 AM
why is my car running like pewp? (tune/datalog) itsMikey MSPNP 3 09-28-2015 07:40 AM


Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 10:23 AM.