EFI LIVE Injector swap

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May 26, 2009 | 09:48 AM

JASON11WS6

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From: CHICAGO BURBS

EFI LIVE Injector swap

HEY GUYS, I'm going to be swaping injectors in my Z from the stockers to some Seimens 60#ers. First off, will these work fine on a stock vehicle? I'm putting a supercharger on as soon as the injectors are in and tuned. What do I need to change on the tune? Do I just adjust the main pulse width voltage table? Anyone have the formula I need to follow?

May 26, 2009 | 11:47 AM

Lextech

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You will also need to adjust the I.F.R. table. Do a search for an IFR spreadsheet by Marcin.

Jeff

Jun 2, 2009 | 07:16 AM

JASON11WS6

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Thanks for the info, I finally found it. This leads me to a couple other questions. One, my stockers would be 43.5 psi, 26# (2000 Camaro) and my fuel pressure should be 53 psi right? My new injectors are 60# Mototrons. They would be 43.5 psi, 60# with the fuel pressure at 53 psi correct? Just making sure I don't put any bogus numbers in a pop my motor. Thanks for the help.

Jun 2, 2009 | 07:22 AM

FICINJECTORS

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Quote:

Originally Posted by JASON11WS6

the stock fuel pressure is 4 bar 58psi, the stock injectors in a 2000 flow 26 only at 58psi fp. The new ones are rated 61 at 43.5. In your car they will flow approx 72lb/hr at 58psi. So, set your IFR accordingly

Jun 2, 2009 | 07:40 AM

JASON11WS6

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From: CHICAGO BURBS

That's what I thought but seems like everything else is three bar. Thanks for the info.

Jun 2, 2009 | 08:35 AM

69LT1Bird

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Why are you putting those in the Z?

Jun 3, 2009 | 06:46 AM

JASON11WS6

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From: CHICAGO BURBS

Yes, I think the G8 has 42# injectors from the factory so it should be good for a while. I just supercharged the Z so it needs to bigger squirters fast.

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