begi afpr - Miata Turbo Forum - Boost cars, acquire cats.

Welcome to Miataturbo.net   Members
 


DIY Turbo Discussion greddy on a 1.8? homebrew kit?

Reply
 
 
 
LinkBack Thread Tools
Old 06-23-2008, 09:55 PM   #1
Cpt. Slow
Thread Starter
iTrader: (25)
 
curly's Avatar
 
Join Date: Oct 2005
Location: Oregon City, OR
Posts: 12,110
Total Cats: 518
Default begi afpr

searched and searched, but can't seem to find tuning instructions for the begi adjustable fuel pressure regulator, and the .pdf file on their website isn't working. I have the vacuum line to the little hose barb that doesn't have the needle valve, the line from the stock fpr to the 'IN' port, and then the other port goes to the fuel return line. I've read that the needle valve stays open, is that correct? I've seen some setups with a check valve, is this required?

anyways I think I have it hooked up correctly (or maybe not) and I'm running real lean. I'm assuming I loosen the locking nut on center stud and then turn that stud in and out to adjust it? which way is lean/rich? thanks guys.
curly is offline   Reply With Quote
Old 06-23-2008, 10:49 PM   #2
Junior Member
 
Join Date: Oct 2007
Location: AC, NJ
Posts: 346
Total Cats: 0
Default

The link on the website simply had an extra quote on the end of the link.

Erasing it clearly shows the manual.

http://www.bellengineering.net/templ...structions.pdf
compy is offline   Reply With Quote
Old 06-23-2008, 11:29 PM   #3
Cpt. Slow
Thread Starter
iTrader: (25)
 
curly's Avatar
 
Join Date: Oct 2005
Location: Oregon City, OR
Posts: 12,110
Total Cats: 518
Default

well almost right, now I need a check valve though. and a fuel pressure gauge. I can find where to get a fp gauge by searching, but I'm thinking a little vacuum check valve might be harder to find, would this sorta thing be found at home depot, or an auto parts store?
curly is offline   Reply With Quote
Old 06-24-2008, 09:30 PM   #4
Cpt. Slow
Thread Starter
iTrader: (25)
 
curly's Avatar
 
Join Date: Oct 2005
Location: Oregon City, OR
Posts: 12,110
Total Cats: 518
Default

so following the instructions, I bought a fuel pressure gauge setup for ~$40 at NAPA, along with a check valve to go off the needle valve. hooked everything up, and it leaked. tightened everything up, and it leak less, but still leaked. used some liquid teflon tape, and now it doesn't leak. but when I pinch the return line at idle, the gauge goes from ready ~30psi to only 60? shouldn't it be around 120psi when the line's pinched shut? as stated in my signature, I have a walbro in-tank pump installed.
curly is offline   Reply With Quote
Old 06-24-2008, 10:47 PM   #5
Elite Member
iTrader: (7)
 
samnavy's Avatar
 
Join Date: Apr 2006
Location: VIRGINIA BEACH, VA
Posts: 6,020
Total Cats: 175
Default

How are you pinching the line? Are you using your fingers or some sort of mechanical clamp?
samnavy is offline   Reply With Quote
Old 06-24-2008, 11:28 PM   #6
Cpt. Slow
Thread Starter
iTrader: (25)
 
curly's Avatar
 
Join Date: Oct 2005
Location: Oregon City, OR
Posts: 12,110
Total Cats: 518
Default

a pair of 'slip joint adjustable pliers'

had to look that up, weren't sure what their official name was.

one more quick question that might get me a lot of teasing, but is the pressure gauge supposed to be before or after the fuel rail? i.e. on the return line or the feed line.
curly is offline   Reply With Quote
Old 06-25-2008, 12:56 AM   #7
Junior Member
iTrader: (1)
 
Join Date: Jun 2008
Location: Atlanta, GA
Posts: 157
Total Cats: 0
Default

feed line, the return on the rail goes through the stock FPR too, not to mention it's had fuel squirted out of it.
quadmasta is offline   Reply With Quote
Old 06-25-2008, 01:42 AM   #8
Cpt. Slow
Thread Starter
iTrader: (25)
 
curly's Avatar
 
Join Date: Oct 2005
Location: Oregon City, OR
Posts: 12,110
Total Cats: 518
Default

I figured, I'll check the pressure on the feed line tomorrow, thanks guys
curly is offline   Reply With Quote
Old 06-26-2008, 02:08 AM   #9
Cpt. Slow
Thread Starter
iTrader: (25)
 
curly's Avatar
 
Join Date: Oct 2005
Location: Oregon City, OR
Posts: 12,110
Total Cats: 518
Default

ok, so I hooked up the gauge on the feed line and was still getting only 55psi. tired bunch of different things and still 55psi.

so I decide to take the fuel pump out and look at it. turns out the little 1" line from the pump to the hardline had been eaten up by the clamp and was pretty torn up. so I replaced that and now have 115psi! I also took the worm clamps I had used off and put on the stock spring clamps, they seem to work much better and won't tare up the hose.

now once I make a sturdier bracket for the wastegate actuator I'll hopefully have less of a boost spike and be good to run with 10psi. gotta sign up for the next track day....
curly 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 59 12-15-2017 09:00 PM
Complete BEGI S3 NB Kit, Full Enthuza 3" Exhaust, ACT HD Clutch, MS2 PNP, Wideband kronikker Miata parts for sale/trade 17 10-06-2015 11:18 PM
Expected intake temps on the track? tazswing Race Prep 20 10-03-2015 12:04 PM
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


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 01:26 AM.