injector help.
TECH Resident
Joined: Jun 2013
Posts: 853
Likes: 32
From: Kernersville, NC
Ford put out the calibration sheet on them. No reason to trial and error it(unless you don't know about the calibration sheet), you calculate them.
TECH Addict
Joined: Dec 2010
Posts: 2,610
Likes: 4
From: Maricopa, AZ
Where/how do you get the voltage offsets? I couldn't find them for my Ford red tops and had to do a bunch of trial and error.
If you're running a cc503 on stockish heads you should be okay. Like I said, I hit 98% at 6,000rpm and I have a cc503 with lightly ported heads on a 383.
If you're running a cc503 on stockish heads you should be okay. Like I said, I hit 98% at 6,000rpm and I have a cc503 with lightly ported heads on a 383.
Get the part number off the side of the injector and search that part number plus "voltage offset" on Google. Should give you a sheet on one of the results. Or post up the part number and I'll see if I can find em.
TECH Resident
Joined: Jun 2013
Posts: 853
Likes: 32
From: Kernersville, NC
It's not quite that straight forward....unless someone has done the work and posted it up(as I have on the fat red top Ford 30# injectors). You generally will not find the direct information from a google search. I certainly didn't when I was looking.
You get the calibration sheet and then have to do some interpolation calculations based upon the pressure you plan to run.
I do think the voltage offsets were a little easier to get to than the short pulse adders.
You get the calibration sheet and then have to do some interpolation calculations based upon the pressure you plan to run.
I do think the voltage offsets were a little easier to get to than the short pulse adders.
TECH Addict
Joined: Dec 2010
Posts: 2,610
Likes: 4
From: Maricopa, AZ
It's not quite that straight forward....unless someone has done the work and posted it up(as I have on the fat red top Ford 30# injectors). You generally will not find the direct information from a google search. I certainly didn't when I was looking.
You get the calibration sheet and then have to do some interpolation calculations based upon the pressure you plan to run.
I do think the voltage offsets were a little easier to get to than the short pulse adders.
You get the calibration sheet and then have to do some interpolation calculations based upon the pressure you plan to run.
I do think the voltage offsets were a little easier to get to than the short pulse adders.
Thread Starter
Staging Lane
Joined: Dec 2015
Posts: 56
Likes: 0
From: Killadelphia
With EV1 connectors. They are BOSCH injectors with the 4 pintle hole spray head. I am running them now, and need to be tuned for them even though they are 24lb like people were stating above they really are a 25.xx in our motors its weird plus the spray times differ on them
Part of that may be due to the fact that they're rated at 39psi vs 43.5 on the LT1. I have an adjustable regulator on mine, but if the lag time is far enough off that may still be an issue. I'll see if I can dig up a stock tune for one, hopefully on the same software that works on my car. I'm going to get a chip burned to remove EGR and stuff anyway, so if it's copy/paste I doubt the tuner will ding me for it.
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Verdad Gallardo Thread Starter
Staging Lane
Joined: Dec 2015
Posts: 56
Likes: 0
From: Killadelphia
This is the email I got back from the company I got the injectors from..
Hello,
The lag time is 1.2ms at 14v, we do not have complete off set tables, it
is not a cheap process to get that for all injectors we sell. You can
extrapolate for other voltages based on the 1.2ms at 14v in comparison
with other injectors. The key thing is to not run a pulse width less
than 3ms because we have no way to test on our ASNU machine for lower
pulse width.
Thank You,
TREperformance
My question is, aren't our injectors running on a 12v system?
Hello,
The lag time is 1.2ms at 14v, we do not have complete off set tables, it
is not a cheap process to get that for all injectors we sell. You can
extrapolate for other voltages based on the 1.2ms at 14v in comparison
with other injectors. The key thing is to not run a pulse width less
than 3ms because we have no way to test on our ASNU machine for lower
pulse width.
Thank You,
TREperformance
My question is, aren't our injectors running on a 12v system?
Thread Starter
Staging Lane
Joined: Dec 2015
Posts: 56
Likes: 0
From: Killadelphia
found this table
http://www.carprogrammer.com/Z28/PCM.../injectors.htm
that svo 24 comparable to bosch 24s?
http://www.carprogrammer.com/Z28/PCM.../injectors.htm
that svo 24 comparable to bosch 24s?
Thread Starter
Staging Lane
Joined: Dec 2015
Posts: 56
Likes: 0
From: Killadelphia
Also would I use this excel file to figure out the scaling?
http://www.carprogrammer.com/Z28/PCM...ectorscale.xls
http://www.carprogrammer.com/Z28/PCM...ectorscale.xls
TECH Addict
Joined: Dec 2010
Posts: 2,610
Likes: 4
From: Maricopa, AZ
found this table
http://www.carprogrammer.com/Z28/PCM.../injectors.htm
that svo 24 comparable to bosch 24s?
http://www.carprogrammer.com/Z28/PCM.../injectors.htm
that svo 24 comparable to bosch 24s?
TECH Addict
Joined: Dec 2010
Posts: 2,610
Likes: 4
From: Maricopa, AZ
Also would I use this excel file to figure out the scaling?
http://www.carprogrammer.com/Z28/PCM...ectorscale.xls
http://www.carprogrammer.com/Z28/PCM...ectorscale.xls
I believe you're right.....but Bosch manufactured the SVO's to Ford's higher and more precise specifications.
You can kind of look at it like this:
Bosch = Chevy
SVO = Cadillac
And don't you all get your panties in a bunch.....you all know that Cadillacs are better
.......LOL!
KW
You can kind of look at it like this:
Bosch = Chevy
SVO = Cadillac
And don't you all get your panties in a bunch.....you all know that Cadillacs are better
.......LOL!KW
