more boost. - 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 10-25-2007, 08:53 PM   #1
Junior Member
Thread Starter
iTrader: (14)
 
Join Date: Sep 2007
Location: Aldie, VA
Posts: 276
Total Cats: 0
Default more boost.

Alright, I have been runing the greddy for a couple weeks now, and got all the leaks figured out So I think its time for a bit more boost. I have on the way:

walbro 190hp fp
set of vortech disc
bipes
265cc 1.8l injectors (purple top)
ACT XT Street clutch

I already have a 12x18x3 IC with stripes pipes.

Am I good for about 8 or 9psi with this set up? Soon ill have the bell greddy DP and 3" enthuza exhaust.

And I will be getting a wideband soon, as for the size disc in the vortech, I was thinking 8:1 or 7:1?
jtpaintballwdp is offline   Reply With Quote
Old 10-25-2007, 09:21 PM   #2
I'm Miserable!
iTrader: (-1)
 
Join Date: May 2007
Location: West Sacramento Ca
Posts: 948
Total Cats: 0
Default

Yeah. You should be fine for trhat amount of boost.
BUT
Make sure you install things ONE by ONE and when you turn the boost up, Do it A little by Little!
Trust me..
Its the way I Wish I did it : /
And there isnt a 7:1 Disc..
Right?
Slidin'Miata916 is offline   Reply With Quote
Old 10-25-2007, 09:30 PM   #3
Junior Member
Thread Starter
iTrader: (14)
 
Join Date: Sep 2007
Location: Aldie, VA
Posts: 276
Total Cats: 0
Default

hmmm 8:1 ill probably go with 8:1 then, i dont want to go to lean till i get my WB o2 to see where im at.
jtpaintballwdp is offline   Reply With Quote
Old 10-25-2007, 09:54 PM   #4
I'm Miserable!
iTrader: (-1)
 
Join Date: May 2007
Location: West Sacramento Ca
Posts: 948
Total Cats: 0
Default

then go wtih a 10:1 just to be sureeeee :0)
Slidin'Miata916 is offline   Reply With Quote
Old 10-25-2007, 10:47 PM   #5
Senior Member
iTrader: (3)
 
Join Date: Apr 2006
Location: Northern Michigan
Posts: 898
Total Cats: 0
Default

Hmmm, the wideband really needs to go in first. That's kinda what its for. Trust me, you can't always assume what works in others cars will give you the same results. And you can then sleep well at night.
rotaryjunky is offline   Reply With Quote
Old 10-25-2007, 10:55 PM   #6
Junior Member
Thread Starter
iTrader: (14)
 
Join Date: Sep 2007
Location: Aldie, VA
Posts: 276
Total Cats: 0
Default

Yeh i kinda had a feeling that was gonna be an issue.
jtpaintballwdp is offline   Reply With Quote
Old 10-25-2007, 11:36 PM   #7
I'm Miserable!
 
Join Date: Jul 2006
Location: sandiego, CA
Posts: 332
Total Cats: 0
Default

what are you doing as far as timing?
drftem is offline   Reply With Quote
Old 10-25-2007, 11:39 PM   #8
Supporting Vendor
iTrader: (31)
 
Savington's Avatar
 
Join Date: Nov 2006
Location: Sunnyvale, CA
Posts: 14,367
Total Cats: 1,331
Default

You aren't good for anything until you get a wideband.

Once you get a wideband, though, that setup should be gold for 10psi. Just make SURE you don't go lean, and make sure you keep detonation in check. You should have no problems with the Bipes and that IC though.

You will probably want to add an O2 clamp later to prevent lean tip-in during cruise. Otherwise your setup looks good.
Savington is offline   Reply With Quote
Old 10-25-2007, 11:55 PM   #9
Ben
Supporting Vendor
iTrader: (33)
 
Ben's Avatar
 
Join Date: Jul 2006
Location: atlanta-ish
Posts: 12,689
Total Cats: 99
Default

I would say marginal @ 8 psi w/ the open exhaust and those injectors. When I replaced my downpipe, I got a crazy boost spike that overwhelmed the 1.8 tan top injectors. I had plenty of fuel for up top, but not enough to satisfy the boost spike. Your purple tops should do you better though.
Ben is offline   Reply With Quote
Old 10-26-2007, 12:39 AM   #10
Newb
iTrader: (1)
 
Join Date: Oct 2007
Posts: 28
Total Cats: 0
Default

*drool* sounds like a nice daily setup without worrying about high intake temps
WhiteNA6 is offline   Reply With Quote
Old 10-26-2007, 12:40 AM   #11
Junior Member
Thread Starter
iTrader: (14)
 
Join Date: Sep 2007
Location: Aldie, VA
Posts: 276
Total Cats: 0
Default

wideband it is, thanks guys.
jtpaintballwdp is offline   Reply With Quote
Old 10-26-2007, 12:53 AM   #12
Junior Member
Thread Starter
iTrader: (14)
 
Join Date: Sep 2007
Location: Aldie, VA
Posts: 276
Total Cats: 0
Default

LC-1 with analog gauge, 259.00 good price or no?
jtpaintballwdp is offline   Reply With Quote
Old 10-26-2007, 01:32 AM   #13
I'm Miserable!
iTrader: (-1)
 
Join Date: May 2007
Location: West Sacramento Ca
Posts: 948
Total Cats: 0
Default

Look on ebay at the aem uegos!
Slidin'Miata916 is offline   Reply With Quote
Old 10-26-2007, 01:52 AM   #14
Elite Member
iTrader: (13)
 
cjernigan's Avatar
 
Join Date: Oct 2006
Location: Atlanta, GA
Posts: 8,147
Total Cats: 6
Default

**** that price.
Nester on this forum will get you one for $245 shipped. PM that guy.
cjernigan is offline   Reply With Quote
Old 10-26-2007, 05:39 AM   #15
I'm Miserable!
 
Join Date: Jul 2006
Location: sandiego, CA
Posts: 332
Total Cats: 0
Default

oops just noticed you said your using the bipes.
drftem is offline   Reply With Quote
Old 10-26-2007, 06:10 PM   #16
Junior Member
iTrader: (1)
 
Join Date: Oct 2007
Location: Bay Area, CA
Posts: 105
Total Cats: 0
Default

Where did you get your Walbro 190?
Latch is offline   Reply With Quote
Old 10-26-2007, 06:18 PM   #17
I'm Miserable!
iTrader: (-1)
 
Join Date: May 2007
Location: West Sacramento Ca
Posts: 948
Total Cats: 0
Default

Quote:
Originally Posted by Latch View Post
Where did you get your Walbro 190?
Me.
Slidin'Miata916 is offline   Reply With Quote
Old 10-26-2007, 06:27 PM   #18
Senior Member
 
Join Date: Mar 2007
Location: Denver, CO
Posts: 564
Total Cats: 0
Default

Quote:
Originally Posted by Savington View Post
You aren't good for anything until you get a wideband.
What is the ******* obsession with widebands? I remember when they were too expensive for most people and nobody had them and guess what, people still went fast and didn't blow motors. Granted, it's a great tool to have but this idea that it's a requirement, and you're an idiot if you don't have one, is off base. I'd get knocksense before I got a wideband.
jwarriner is offline   Reply With Quote
Old 10-26-2007, 06:30 PM   #19
Boost Czar
iTrader: (61)
 
Braineack's Avatar
 
Join Date: May 2005
Location: Chantilly, VA
Posts: 72,892
Total Cats: 1,792
Default

the the key to tuning is the fuel and spark.

if you have absolutely no idea what your AFR is, then you lost half the battle. yeah you can scoot by with math equations, but how good are they?

do you know what happens at 5.5K?
Braineack is offline   Reply With Quote
Old 10-26-2007, 06:41 PM   #20
Senior Member
 
Join Date: Mar 2007
Location: Denver, CO
Posts: 564
Total Cats: 0
Default

In the past my philosophy was to tune by knock. I put in injectors that I knew would be way more than enough then I set the boost where I wanted it and then I'd do some pulls and lean it out until I got knock and then make it a little richer. I did this on many cars making between 280-320hp on pump gas at over 15psi. I never had a wideband because when I sold my last Talon they were still like $1000. I'd definitely invest in one now. But my point is that the "you're an idiot if you don't have a wideband" crap is getting old.
jwarriner is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Bad head gasket or ? shooterschmidty Engine Performance 8 09-30-2015 11:28 PM
Miata new person and a what's it worth! Model192 Meet and Greet 16 09-29-2015 09:50 PM
The "other" spool question stefanst DIY Turbo Discussion 44 09-28-2015 08:16 PM
Noob from Fort Worth, Texas checking in. Miatabro Meet and Greet 7 09-11-2015 01:13 PM
Is this the definition of hesitation? ST2udent Prefabbed Turbo Kits 3 08-10-2007 07:35 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 01:40 AM.