i went 10.7 years back with 50's and alky if that helps any

 

I was planning on getting 65 or 72#.but dont know if the emc can control the injectors.

 

I was planning on getting 65 or 72#.

but dont know if the emc can control the injectors.

No, the factory ECU was built for hi-Z (Z=Impedance) injectors

The factory ECU needs a Bill Bailey mod to run low-Z injectors.

The highest hi-Z injector is a 79#.

For more on injector-info, type INJECTORS into SEARCH.
Tons of threads & posts available within seconds. -- :cheers:

(Also: racetronix - index <--When ready to buy, Jack @
Welcome To CottonsPerformance.com! will give you great info & a good deal.)

 

are 65 or 75# are overkill for 10.5 or 10.7. and for street driven.



thankz

 

what size injectors I would need to run into
the 10.7/10.5 with the stock emc

and what is the HP needed.

Here's one 10-sec. "recipe":

10sec


( A stock ECU & a TurboTweak Home chip = winning combo! -- :usa: )

 

If you are running 55#ers then you already have a modded ecm.

 

YOWZUH!

If you are running 55#ers

then you already have a modded ecm.

55# injectors come in both hi-Z (stock ECU)

& lo-Z (requiring the Bill Bailey ECU mod)

---------------------------:cheers:

 

yes i have a modded ecm. thankz for the recipe ifyagot3yards.

 

yes i have a modded ecm.

Modded ECM usually means that the stock unit has been
shipped to Bob Bailey to have it modified for use with the lo-Z injectors.

(Upgrading the original GM chip within the factory ECM also "modifies"
the ECM, but usually is termed "changing the chip" rather than
"modding the ECM".)

What has been done re: your ECM? -----

 

so from my research, if i get the 65# and alky i should reach my goal. and have room to grow. i want to buy one set only and not upgrade again.

 

the 60s, or 65s, as some call them are high impedance so they will work with either a modded, or, unmodded ecm.

Grumpy has edged into the nines with them plus alky injection and a single fuel pump.

 

Here's reference info:

RACETRONIX INJECTOR LISTINGS

48 lb/hr Disc High-Z
79 lb/hr Disc - High-Z FM
120 lb/hr Disc - Low-Z FM

Delphi Multec Fuel Injectors
Z = Impedance, FM = 1% Flow-Matched

50lb/hr (MSD / Holley) - High-Z FM SUPER SALE!
55lb/hr (MSD / Holley) - Low-Z FM
65lb/hr (MSD / Holley) - Low-Z FM
75lb/hr (MSD / Holley) - Low-Z FM
85lb/hr (MSD / Holley) - Low-Z FM
95lb/hr (MSD / Holley) - Low-Z FM


Siemens (Deka) Fuel Injectors
Z = Impedance, FM = 1% Flow-Matched

55's (57lb/hr / 599cc) High-Z FM
55's (57lb/hr / 599cc) Low-Z FM
60's (63lb/hr / 630cc) High-Z FM
60's (63lb/hr / 630cc) High-Z
60's (63lb/hr / 630cc) High-Z FM USCAR
60's (63lb/hr / 630cc) Shorty High-Z FM
72's (75lb/hr / 788cc) Low-Z FM
83's (86lb/hr / 903cc) Low-Z FM

HTH--------------------------------------------:cheers:

 

i have my ecm in my hands and it say suitable for use with high and low ohm injectors S/N 220. the 55# are low z. just put in the power logger on it.

 

i

have my ecm in my hands and it say

suitable for use with


high and low ohm injectors S/N 220.


the 55# are low z.

Great! :yup: -----------------------------------:cheers:

 

Here's another link, directly to the turbo tweak message board
for questions & answers about chips & combos w/ Eric Marshall:


All Topics - TurboTweak Forum


WELCOME as a new member of www.TurboBuickS.com --- :usa: