Fueling & Injection Fuel Pumps | Injectors | Rails | Regulators | Tanks

svo 30# ifr

Thread Tools
 
Search this Thread
 
Old Aug 15, 2005 | 11:07 PM
  #1  
rmata's Avatar
Thread Starter
TECH Regular
iTrader: (34)
 
Joined: Mar 2004
Posts: 423
Likes: 0
From: Corpus Christi, TX
Default svo 30# ifr

can someone tell me the CORRECT injector flow rate chart for svo 30# injectors on a 2000 trans am
Reply
Old Aug 16, 2005 | 07:45 AM
  #2  
RedHardSupra's Avatar
TECH Fanatic
iTrader: (1)
 
Joined: Sep 2003
Posts: 1,904
Likes: 2
From: Laurel, MD
Default

i can tell you there's more than plenty of info about it in the stickies.
Reply
Old Aug 16, 2005 | 10:10 AM
  #3  
rmata's Avatar
Thread Starter
TECH Regular
iTrader: (34)
 
Joined: Mar 2004
Posts: 423
Likes: 0
From: Corpus Christi, TX
Default

yeah, but I always come up with different tables and how much they actually flow on our fuel pressure. If someone with these injectors that has a tune that is working great could just give me their ifr table that would be so much easier.
Reply
Old Aug 16, 2005 | 10:15 AM
  #4  
RedHardSupra's Avatar
TECH Fanatic
iTrader: (1)
 
Joined: Sep 2003
Posts: 1,904
Likes: 2
From: Laurel, MD
Default

no, you give man a fish, he'll be fed for a day, you'll teach him how to fish, he'll never be hungry again. i'm not being an ***, i'm just trying to teach you.
i'll give you a tip: svo 30s at 3 bar come out to about 34.5 at 4 bar. use the spreadsheet and you should see it for yourself.
if you're really lost, i'll show you how to do it step by step, but that's the last option.
Reply
Old Aug 16, 2005 | 05:36 PM
  #5  
Viper's Avatar
12 Second Club
20 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (6)
 
Joined: Dec 2001
Posts: 4,909
Likes: 3
From: Cleveland, OH
Default

RedHardSupra,

I don't feel this one has been settled yet but what do YOU feel SVO 42lb come out at?

40psi or 43.5psi ?
Reply
Old Aug 16, 2005 | 05:43 PM
  #6  
RedHardSupra's Avatar
TECH Fanatic
iTrader: (1)
 
Joined: Sep 2003
Posts: 1,904
Likes: 2
From: Laurel, MD
Default

43.5 empirically checked, i had a fully tuned car, put in new injectors, put in a new config based on 43.5->58psi conversion and low and behold, LTFT table is perfect, just as before. if the injectors were misconfigured, it would show the whole thing either rich or lean, but i was just under zero, just like before the changes. might not be scientific, but it would be a huge coincidence if it happened to work out like that on random. just my opinion, your milage might vary, no animals were hurt in testing of these injectors
Reply
Old Aug 16, 2005 | 10:43 PM
  #7  
rmata's Avatar
Thread Starter
TECH Regular
iTrader: (34)
 
Joined: Mar 2004
Posts: 423
Likes: 0
From: Corpus Christi, TX
Default

well this is the thing, my LTFT table is all zeroed out, but I feel as though my car is running really rich because I'm only getting about 10mpg and I can smell the fuel. So I'm completely lost, I though maybe if I changed my IFR table and see how the ltft change and play around with it some that I could probably bring up my gas mileage a little bit.
Reply
Old Aug 17, 2005 | 03:07 AM
  #8  
ninobrn99's Avatar
TECH Addict
iTrader: (8)
 
Joined: Apr 2003
Posts: 2,513
Likes: 0
From: Honolulu HI
Default

a wise man once told me not to mess with the IFR's unless you have aftermarket injecotrs. if you do, then the spreadsheet in the sticky will work very well for you. If not, then its all ve...i think
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

 Verdad Gallardo
story-1

6 Common C5 Corvette Failures and What's Involved In Repairing Them

 Pouria Savadkouei
story-2

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

 Verdad Gallardo
story-3

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-4

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-5

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-6

Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

 Verdad Gallardo
story-7

Awesome K5 Blazer Restomod Comes With C7 Corvette Power

 Verdad Gallardo
story-8

10 Camaros You Should Never Buy

 
story-9

10 LS Engine Myths That Refuse to Die

 Verdad Gallardo
Old Aug 17, 2005 | 09:23 AM
  #9  
RedHardSupra's Avatar
TECH Fanatic
iTrader: (1)
 
Joined: Sep 2003
Posts: 1,904
Likes: 2
From: Laurel, MD
Default

ok, for future reference, so i don't ever have to answer this again:
SVO 30s at 4bar(58psi):
Code:
Injector Flow (lb/hr)	34.64162706	34.85752419	35.07209232	35.2853557	35.49733784	35.70806157	35.91754903	36.12582173	36.33290055	36.5388058	36.74355721	36.94717396	37.14967471	37.3510776	37.55140031	37.75066003	37.9488735
SVO 42s at 4bar(58psi)
Code:
Injector Flow (lb/hr)	48.49827788	48.80053386	49.10092925	49.39949798	49.69627298	49.9912862	50.28456864	50.57615042	50.86606077	51.15432813	51.4409801	51.72604355	52.00954459	52.29150865	52.57196044	52.85092404	53.12842289
Reply
Old Aug 18, 2005 | 08:35 AM
  #10  
shep28's Avatar
TECH Regular
iTrader: (4)
 
Joined: Jun 2004
Posts: 486
Likes: 0
From: Beachwood, Ohio
Default

Not again!!!!!!! These 30's are a mystery.
Reply
Old Aug 18, 2005 | 08:48 AM
  #11  
RedHardSupra's Avatar
TECH Fanatic
iTrader: (1)
 
Joined: Sep 2003
Posts: 1,904
Likes: 2
From: Laurel, MD
Default

not really, i have 2.5hrs of dyno time and 8 20min track sessions on them, in addition to half a year of daily driving. i'd say they're tested and holding up just fine with this config.
Reply
Old Aug 18, 2005 | 10:19 AM
  #12  
rmata's Avatar
Thread Starter
TECH Regular
iTrader: (34)
 
Joined: Mar 2004
Posts: 423
Likes: 0
From: Corpus Christi, TX
Default

Yeah, that's about what I have them set at. I need to take a look when I get home to be sure, but it's pretty close to what I have them set at. humm.....I guess I need to look somewhere else as to why my car is running rich at low rpms.
Reply
Old Aug 18, 2005 | 11:02 AM
  #13  
RedHardSupra's Avatar
TECH Fanatic
iTrader: (1)
 
Joined: Sep 2003
Posts: 1,904
Likes: 2
From: Laurel, MD
Default

that can be a bunch of reasons, you can have a miscalibrated MAF, your RAF tables might be off, or you might be just measuring it at a wrong time (i'm not kidding, read the 'how MAF really works' thread. temps, thus massflow readings change as car warms up, making computer think it needs to dump fuel. i got the same problems, so i just leaned out the VE table in the idle region.
Reply




All times are GMT -5. The time now is 12:57 AM.

story-0
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-1
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-2
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-3
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-4
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-5
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-6
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE
story-7
Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Slideshow: A heavily reworked 1972 K5 Blazer swaps its off-road roots for a low-slung street-focused build with modern V8 power.

By Verdad Gallardo | 2026-03-09 18:08:45


VIEW MORE
story-8
10 Camaros You Should Never Buy

Slideshow: There are thousands of used Camaros on the market but we think you should avoid these 10

By | 2026-02-17 17:09:30


VIEW MORE
story-9
10 LS Engine Myths That Refuse to Die

Slideshows: Which one of these myths do you believe?

By Verdad Gallardo | 2026-01-28 18:10:11


VIEW MORE