Black LS1 T/A

Does anyone have or know where I can get the Injector Offset table for the new 55# Siemens Hi-Z Injectors?

Thanks!

Phate

iTrader: (2)

I would be interested in the injector offset values for Delphi 50# injectors as well if anyone has them.

Scott

red ws6 99

Assuming the delphi 50 are the same as the msd 50 lb injectors. I have three point that I then used to create a response curve. It actually ended up being the same as the ford lightening injector offset used in Chrisb webpage. It seems to work pretty good, but I still have major idling issues, plus had to crank the PE table bigtime.

http://ls1edit.slowcar.net/injectoroffset.xls

Gary

Black LS1 T/A

I got my 55#'ers to work just using IFR tables, but it was difficult.

I think the IFR table values are too low to gain zero/neg LTFT's and the PE/RPM table has to be brought down in the low to middle RPM band too much.

Black LS1 T/A

Anybody?

ttt

smokinHawk

iTrader: (48)

not to many people have these i guess. still waiting to get mine in.

Black LS1 T/A

ttt

XLR8NSS

iTrader: (4)

Mike - Try contacting Jack @ Racetronix. www.racetronix.com . I know they sell them and pretty much all they do is fuel system stuff.

If he can't help you, give RC Engineering a buzz. They deal in injectors full time. www.rceng.com

If neither of them can help I don't know who could.

John

Black LS1 T/A

Racetronics said to ignore the Inj Offset Table and tune with the stock settings. I don't think I can settle for that. I'll try RC Eng.

smokinHawk

iTrader: (48)

are you still trying to get your injectors dialed in?
mine are still sitting in a box, hope to get my fuel system together soon and car back together.
then retune the beginning of august?

Black LS1 T/A

I've got it dialed in... it's just that the Inj Flow Rate table is so low (to get LTFT's zero/neg) that the low to mid-range portion of my PE/RPM table is quite low to get optimal A/F ratio.

smokinHawk

iTrader: (48)

have you checked some other boards, like the for boards for guys that are running them?

ChrisB

You would have to get them tested by someone like RC or get the specs from the manufacturer. The reason SVO data is around is because people have pulled it from ford ECM's.

The SVO 42's would be a much better starting point for your injectors than stock values.

Alternatively you could sell them and get some low-z injectors and an impedance box 83's idle like a kitten with stock injector offsets.

Black LS1 T/A

Thanks, Chris... I have a real respect for your opinion on these issues.

I was afraid of the added expense/complexity of changing over to lo-z injectors and driver... the re-wiring and all. I could do it, but$4xx.00 was less than $8xx.00 and a lot of changed wiring just seemed trouble-prone.

I have the 42# Inj Offset Table. So I'm understanding you to say that data would be better than my stock table. That has been a question I wanted answered. Thanks, man!

Black LS1 T/A

Is this available yet? (fishing...)

XLR8NSS

iTrader: (4)

Nope. Here is some good reading though on the subject. Two people are mentioned in that thread that may be able to help you.

http://www.turbobuick.com/forums/sho...ght=racetronix

FWIW, I just bought a set of these to use for a project I was thinking about. I ended up not going ahead with the project but, wanted to try the 55# Siemens to see how they were.

I installed them in my bolt on 5.3L truck which previously had 42# SVO's(with SVO offset). The Siemens are running fine and idle like stock with the SVO offset table. The trims vary a bit in different fuel cells but, nothing the computer hasn't been able to handle.

John_D.

iTrader: (2)

Any new news on offsets? (I tried the turbobuick link but it wasn't there anymore)