Begi S2 Blow off valve - 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 03-20-2009, 07:03 PM   #1
Junior Member
Thread Starter
iTrader: (2)
 
Join Date: Aug 2008
Location: Richmond
Posts: 117
Total Cats: 0
Default Begi S2 Blow off valve

What options do I have to convert the recirculation valve to a BOV (to the atmosphere)

I like the noise, some dont, I do.

What is involved on an 03 with a MAF/Xede

Can it be done with out messing up my tune?

I tried it with the Begi recirculation valve just for fun but the thing leaks to back to keep the car idling.
Mikeymx5 is offline   Reply With Quote
Old 03-23-2009, 06:45 PM   #2
Former Vendor
 
Join Date: Jun 2006
Location: Bell Tuning & Performance
Posts: 1,338
Total Cats: -78
Default

It can be converted. Ask Hustler.... I saw it done on his car. It should not affect the tune too much.
Stephanie
Stephanie Turner is offline   Reply With Quote
Old 03-23-2009, 06:58 PM   #3
Supporting Vendor
iTrader: (31)
 
Savington's Avatar
 
Join Date: Nov 2006
Location: Sunnyvale, CA
Posts: 14,362
Total Cats: 1,323
Default

Hustler is using an MSPNP which is MAP based. If the Xede uses the MAF to read airflow instead of a MAP sensor, you shouldn't vent the BOV to atmosphere.
Savington is offline   Reply With Quote
Old 03-23-2009, 08:17 PM   #4
Elite Member
iTrader: (1)
 
Join Date: Jun 2006
Location: Warrington/Birmingham
Posts: 2,658
Total Cats: 39
Default

Quote:
Originally Posted by Savington View Post
Hustler is using an MSPNP which is MAP based. If the Xede uses the MAF to read airflow instead of a MAP sensor, you shouldn't vent the BOV to atmosphere.
I've never understood this, so apologies, but why?

When you in a 'venting' state you're not at WOT so who cares if the air vented isn't metered by the MAF?
richyvrlimited is offline   Reply With Quote
Old 03-23-2009, 08:25 PM   #5
Senior Member
iTrader: (6)
 
Join Date: Jul 2007
Location: Cocoa Beach, FL
Posts: 808
Total Cats: 3
Default

still creates fuel spikes since it thinks all that air went into the engine and it didn't. It's probably not that bad, but if it's finely tuned, it could cause problems. It'll just be rich and possibly bog.
TrickerZ is offline   Reply With Quote
Old 03-23-2009, 08:35 PM   #6
Elite Member
iTrader: (1)
 
Join Date: Jun 2006
Location: Warrington/Birmingham
Posts: 2,658
Total Cats: 39
Default

but you're not accelerating when you VTA, so what's to bog?
richyvrlimited is offline   Reply With Quote
Old 03-23-2009, 08:56 PM   #7
Senior Member
iTrader: (7)
 
nicacus's Avatar
 
Join Date: Jul 2006
Location: SLC UT
Posts: 1,133
Total Cats: 0
Default

If you shift quick enough you can feel it bog, if it leaks at all at idle it will screw with your A/F ratio. If you rev the car at all it will go pig rich and want to die, unless you have a hard spring in it.
My car was VTA with a MAF for about 9 months.. loved/hated it. you have to tap the gas ever so slightly every time you let off the gas when slowing down to keep it from wanting to die/dying.
nicacus is offline   Reply With Quote
Old 04-06-2009, 01:31 AM   #8
Junior Member
Thread Starter
iTrader: (2)
 
Join Date: Aug 2008
Location: Richmond
Posts: 117
Total Cats: 0
Default

my new FIC will allow me to remove the MAF... Im not sure that I want to do this event if i Can. I might start with a cheap EBAY BOV and see what it does, if I dont like it Im sure that there is a turbo miata in the club that will want it.
Mikeymx5 is offline   Reply With Quote
Old 04-06-2009, 01:31 AM   #9
Junior Member
Thread Starter
iTrader: (2)
 
Join Date: Aug 2008
Location: Richmond
Posts: 117
Total Cats: 0
Default

Thanks for the info!!
Mikeymx5 is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Project Gemini - Turbo Civic on the Cheap Full_Tilt_Boogie Build Threads 57 07-19-2017 05:11 PM
Built 1.6l Engine, 1,820 miles Baxgordum Miata parts for sale/trade 19 09-05-2015 12:42 AM
FM3 Turbo Kit minus electronics Leebo Miata parts for sale/trade 22 05-14-2008 01:44 AM
Begi-s ordered. Add on questions! Serper3 DIY Turbo Discussion 10 04-22-2008 04:54 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 05:11 PM.