Injector Dynamics @ 949 Racing - Miata Turbo Forum - Boost cars, acquire cats.

Welcome to Miataturbo.net   Members
 


Engine Performance This section is for discussion on all engine building related questions.
Sponsored by:
Sponsored by:

Reply
 
 
 
LinkBack Thread Tools Search this Thread
Old 04-23-2010, 12:36 AM   #1
Supporting Vendor
Thread Starter
iTrader: (3)
 
emilio700's Avatar
 
Join Date: May 2005
Posts: 5,312
Total Cats: 1,335
Default Injector Dynamics @ 949 Racing

Just added to our line

Injector dynamics "saturated" High Impedance725cc and 1000cc injectors. What makes these injectors unique is comprehensive data sheet to aid in setting up fueling for your high boost Miata engine. The 1000's are just the ticket for those of you running E85.
Very short minimum opening times will let just about any ECU control them for a good idle. Good to 120psi. EV-1 injector clips included for PNP install

emilio700 is offline   Reply With Quote
Old 04-23-2010, 12:43 AM   #2
Elite Member
iTrader: (2)
 
Join Date: Jan 2007
Location: Los Angeles, CA
Posts: 8,782
Total Cats: 119
Default

How would you recommend setting these up in a fueling system for an '03? Keep the in tank regulator and stay returnless or something else to raise the rail pressure?
Faeflora is offline   Reply With Quote
Old 04-23-2010, 12:55 AM   #3
Murderator
iTrader: (76)
 
18psi's Avatar
 
Join Date: Apr 2008
Posts: 36,186
Total Cats: 2,582
Default

These are PLUG AND PLAY????!!!

I think I'll be contacting you very soon
18psi is offline   Reply With Quote
Old 04-23-2010, 01:09 AM   #4
Supporting Vendor
iTrader: (31)
 
Savington's Avatar
 
Join Date: Nov 2006
Location: Sunnyvale, CA
Posts: 14,363
Total Cats: 1,325
Default

These are the ****, I've been using them for a couple of months now. My 255 Walbro/stock FPR gives a funky idle, but these are no more difficult to idle than the 750s or the 460s I had before them. There's really no reason to do anything but these - perfect idle and all the fuel you will ever need.
Savington is offline   Reply With Quote
Old 04-23-2010, 01:30 AM   #5
Supporting Vendor
Thread Starter
iTrader: (3)
 
emilio700's Avatar
 
Join Date: May 2005
Posts: 5,312
Total Cats: 1,335
Default

Quote:
Originally Posted by faeflora View Post
How would you recommend setting these up in a fueling system for an '03? Keep the in tank regulator and stay returnless or something else to raise the rail pressure?
Depends on fuel needed. I don't have any specific recommendation one way or the other. I do believe in lots of fuel pressure though. It's like free horsepower. Everything else being equal, more fuel pressure produces smaller droplets which cool more, burn faster requiring less timing which reduces knock and cylinder pressure before TDC.

The OGK gets a set of these and will run 70psi with a Bosch 044. The Bosch 040 will run to 94psi.
emilio700 is offline   Reply With Quote
Old 04-23-2010, 02:46 AM   #6
Elite Member
 
Join Date: Jul 2005
Posts: 6,454
Total Cats: 80
Default

Quote:
Originally Posted by Savington View Post
My 255 Walbro/stock FPR gives a funky idle, ...
You have an NA stock FPR?
JasonC SBB is offline   Reply With Quote
Old 04-23-2010, 10:13 AM   #7
Elite Member
iTrader: (2)
 
Join Date: Jan 2007
Location: Los Angeles, CA
Posts: 8,782
Total Cats: 119
Default

Quote:
Originally Posted by emilio700 View Post
Depends on fuel needed. I don't have any specific recommendation one way or the other. I do believe in lots of fuel pressure though. It's like free horsepower. Everything else being equal, more fuel pressure produces smaller droplets which cool more, burn faster requiring less timing which reduces knock and cylinder pressure before TDC.

The OGK gets a set of these and will run 70psi with a Bosch 044. The Bosch 040 will run to 94psi.
The setup I was thinking of was:

Remove the in tank regulator
Use my walboro 255hp
add a pierburg pump inline
go to AFPR which goes to rail and tank return
run 90psi on your ID1000s

Goals are "maximum boost" for my gt30.

What do you think about that?
Faeflora is offline   Reply With Quote
Old 04-23-2010, 04:49 PM   #8
Elite Member
iTrader: (8)
 
Join Date: Jun 2009
Location: Albany, NY
Posts: 1,523
Total Cats: 4
Default

ID1000s here. Idle speed and afr was more stable than my Marren 440s. E, these are true pnp, no need to even remove the black plastic grommet/bushing down near the tip? If not, and the clips are pnp, you will sell them like hotcakes.
webby459 is offline   Reply With Quote
Old 04-23-2010, 05:01 PM   #9
Elite Member
iTrader: (8)
 
Join Date: Jun 2009
Location: Albany, NY
Posts: 1,523
Total Cats: 4
Default

BTW, I didn't see duty cycles above 65-70% on my ID1000s, 287whp pull, E85. IIRC, we ended up with a base fuel pressure of 50psi, car off and no vac present. gaeflora, you should be able to use those numbers to project if the ID1000 is enough fueling for your goals.
webby459 is offline   Reply With Quote
Old 04-23-2010, 06:41 PM   #10
Supporting Vendor
Thread Starter
iTrader: (3)
 
emilio700's Avatar
 
Join Date: May 2005
Posts: 5,312
Total Cats: 1,335
Default

Quote:
Originally Posted by faeflora View Post
The setup I was thinking of was:

Remove the in tank regulator
Use my walboro 255hp
add a pierburg pump inline
go to AFPR which goes to rail and tank return
run 90psi on your ID1000s

Goals are "maximum boost" for my gt30.

What do you think about that?
I didn't compute the flow but 90psi with 1000's sounds like enough fuel for about 700hp.
emilio700 is offline   Reply With Quote
Old 04-23-2010, 06:53 PM   #11
Newb
 
Join Date: Dec 2007
Posts: 31
Total Cats: 0
Default

Quote:
Originally Posted by emilio700 View Post
I didn't compute the flow but 90psi with 1000's sounds like enough fuel for about 700hp.
Scaled from my car w/ these injectors, 90 psi = 885 hp (gasoline).
TrackDayHookey is offline   Reply With Quote
Old 04-23-2010, 08:11 PM   #12
Elite Member
iTrader: (8)
 
Join Date: Dec 2008
Location: Kingston, Ontario
Posts: 2,791
Total Cats: 71
Default

Go figure... i have an issue with my current injectors.
VENOMS ARENT REAL INJECTORS. you know who you are.


Ordered a set of these for my tune date for next weekend.... Thanks Emilio!
Now I need to get my higher boost map sensor wired in.
shlammed is offline   Reply With Quote
Old 04-23-2010, 09:14 PM   #13
Elite Member
 
Join Date: Jul 2005
Posts: 6,454
Total Cats: 80
Default

Don't forget that injector flow is proportional to the *square root* of absolute fuel pressure minus manifold absolute pressure.
JasonC SBB is offline   Reply With Quote
Old 04-24-2010, 01:04 AM   #14
Newb
 
Join Date: Dec 2007
Posts: 31
Total Cats: 0
Default

Quote:
Originally Posted by JasonC SBB View Post
Don't forget that injector flow is proportional to the *square root* of absolute fuel pressure minus manifold absolute pressure.
Yup, that's how I computed it:

400 crank hp / 65% dc = 615 hp at 43.5 psi

sqrt(90 / 43.5) * 615 = 1.438*615 = 884.6 hp

I made the assumption that the fuel rail pressure would follow manifold pressure, as God has intended it.
TrackDayHookey is offline   Reply With Quote
Old 04-24-2010, 01:46 AM   #15
Murderator
iTrader: (76)
 
18psi's Avatar
 
Join Date: Apr 2008
Posts: 36,186
Total Cats: 2,582
Default

Ok so can one of you translate that to a noob:

approx how well will these work for me on a 2000 walbro255 stock fpr stock lines/rail and these injectors using e85? This will be on a 3076 turbo.
18psi is offline   Reply With Quote
Old 04-24-2010, 02:19 AM   #16
Supporting Vendor
Thread Starter
iTrader: (3)
 
emilio700's Avatar
 
Join Date: May 2005
Posts: 5,312
Total Cats: 1,335
Default

Quote:
Originally Posted by 18psi View Post
Ok so can one of you translate that to a noob:

approx how well will these work for me on a 2000 walbro255 stock fpr stock lines/rail and these injectors using e85? This will be on a 3076 turbo.
Very well. Get the 1000's.
emilio700 is offline   Reply With Quote
Old 04-24-2010, 07:10 AM   #17
Supporting Vendor
iTrader: (31)
 
Savington's Avatar
 
Join Date: Nov 2006
Location: Sunnyvale, CA
Posts: 14,363
Total Cats: 1,325
Default

These are 2000cc sewer mains, but you get the idea regarding idle quality and control.

Savington is offline   Reply With Quote
Old 04-24-2010, 09:30 AM   #18
Junior Member
 
Join Date: Dec 2009
Location: Shelbina, MO (North East)
Posts: 335
Total Cats: 0
Default

That's pretty damn impressive.....
rweatherford is offline   Reply With Quote
Old 05-10-2010, 11:56 AM   #19
Murderator
iTrader: (76)
 
18psi's Avatar
 
Join Date: Apr 2008
Posts: 36,186
Total Cats: 2,582
Default

JUST ORDERED THESE

Please let me know when I should be receiving them (unless they're in stock and I'll get em in a few days)

Thanx
18psi 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 58 Yesterday 10:04 PM
15x10 - 15x11 6UL @ 949 Racing emilio700 Wheels and Tires 151 06-02-2017 03:36 PM
Changing from 460cc to flow force 610cc in diypnp 90 Turbo MEGAsquirt 19 10-19-2015 04:23 PM
Going back to stock. Need some 1.6 parts. Trent WTB 2 10-01-2015 01:15 PM
Time to start learning and play with tuning The Gleas MEGAsquirt 3 10-01-2015 10:30 AM


Tags
dynamics, id1000, id725, injector

Thread Tools Search this Thread
Search this Thread:

Advanced Search

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 03:17 PM.