injectors
Melting Slicks
Joined: Dec 2004
Posts: 2,322
Likes: 2
From: New York NY
Cruise-In VI Veteran
St. Jude Donor '05
you posted a tech question in the C5 general section. as far as your question is concerned, it is vague. what else have you done to the car to warrant the need for new injectors?
Safety Car
Joined: Jul 2005
Posts: 4,743
Likes: 0
From: Omaha Nebraska
St. Jude Donor '06
Yup, wrong area...
Not too mention the fact that you ask such a question at 6:30 in the morning Dude... on a Sunday no less!! Anyone with real knowledge is still in bed after wrenching all night...
It's also worth mentioning that when you ask a question with limited information supplied, some folks will ignore the post because you can see that the person asking has limited knowledge, info, whatever so some won't even try to start giving out info... It has to do with how the question is asked... Then to follow it up with, "Well if you won't answer my question, I'm going to ttt and pout all morning long!!
I'm not trying to be critical, ok? Just be gracious, humble and kind... and keep the pouting to a minimum. Even if you didn't mean it that way.. it comes across that way... It's difficult to type words and not be able to use voice inflection to help folks understand what it is you mean...
See, even my own post seems harsh.. and it's not meant to be... Just tryin' to 'splain it to ya... If you went to tech, you'll get an answer.. but be patient.
Have an awesome SUNDAY!!!
Not too mention the fact that you ask such a question at 6:30 in the morning Dude... on a Sunday no less!! Anyone with real knowledge is still in bed after wrenching all night...
It's also worth mentioning that when you ask a question with limited information supplied, some folks will ignore the post because you can see that the person asking has limited knowledge, info, whatever so some won't even try to start giving out info... It has to do with how the question is asked... Then to follow it up with, "Well if you won't answer my question, I'm going to ttt and pout all morning long!!
I'm not trying to be critical, ok? Just be gracious, humble and kind... and keep the pouting to a minimum. Even if you didn't mean it that way.. it comes across that way... It's difficult to type words and not be able to use voice inflection to help folks understand what it is you mean...
See, even my own post seems harsh.. and it's not meant to be... Just tryin' to 'splain it to ya... If you went to tech, you'll get an answer.. but be patient.
Have an awesome SUNDAY!!!
Last edited by VRROOOM2; Oct 9, 2005 at 10:35 AM.
Pro
Joined: Feb 2004
Posts: 657
Likes: 1
From: michigan
I m sorry to say but Zero. The only time you would replace injectors is to meet HP fueling demands. The equations for HP and fuel requirments of injectors is pretty standard. If your car could possible make 600 HP you would need a minimum of 42lbs injectors to maintain an acceptable AFR ratio and not have the injectors go static.
Pro
Joined: Jun 2005
Posts: 593
Likes: 1
Originally Posted by steves red vette
i have a 01 vette and going to put on bigger injectors, what kind of gains should i expect. steve
Used by many are the SVO 30 injectors which are about 30% larger then stock ones and only cost about $230 a set. These will assure the fuel trims never get too lean and cause pinging which causes the PCM to reduce timing and reduced performance.
Instructor
Joined: Jul 2004
Posts: 239
Likes: 0
From: Mount Dora Fl
OEM injectors generally support somewhat over 400 rwhp. After you get to that level your tuner will let you know that you are ready for a fuel injector and/or fuel pump upgrade. What happens is that in the upper levels of the power band the engine will go lean and the tuner will not be able to compensate that out.
Safety Car
Joined: May 2000
Posts: 4,808
Likes: 344
From: Albuquerque NM
BIGDSZ is correct, stock injectors are fine, even on most head/cam cars. Heck, I even ran the small 26 pound injectors on my 413 rwhp car for two years, no problems. Yes, the duty cycle was high, but not maxed out.
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Racer
Joined: Apr 2005
Posts: 466
Likes: 0
From: Greenville NC
I have a H/C package on the way, expeting to make over 450rwhp or so- are my stock injectors going to be an issue at this point? What would be a good upgrade?
Randy
Randy
Last edited by ecudooberhead; Oct 10, 2005 at 10:17 AM.
Pro
Joined: Jun 2005
Posts: 593
Likes: 1
Originally Posted by bigdsz
OEM injectors generally support somewhat over 400 rwhp. After you get to that level your tuner will let you know that you are ready for a fuel injector and/or fuel pump upgrade. What happens is that in the upper levels of the power band the engine will go lean and the tuner will not be able to compensate that out.
400 rwhp is a cyberspace myth and not correct, heck even a maggie supercharger that raises the HP about 100 HP for a LS1 comes with 42 lb injectors !
Pro
Joined: Jun 2005
Posts: 593
Likes: 1
Originally Posted by 6Speeder
BIGDSZ is correct, stock injectors are fine, even on most head/cam cars. Heck, I even ran the small 26 pound injectors on my 413 rwhp car for two years, no problems. Yes, the duty cycle was high, but not maxed out.
Safety Car
Joined: Jul 2005
Posts: 4,275
Likes: 4
From: Vancouver WA
Last edited by RED99; Oct 20, 2005 at 08:08 PM.