SOHC Fuel Injector Data - as promised

[Fredness]

Well, 18 injectors all with the same results. These are from 3 different 1998 SOHC Explorers from Hawaii, Colorado and Massachusetts. There are two part numbers on each, the Bosch number: 0280155734 and Fords own 97JF-BA part number (which does NOT fit Fords conventional numbering schema). It appears in some Chrysler products and most of the information on the web is in Cyrillic (Russian), which may shed some light on its unknown origins.

While it looks to be an EV6 part (pencil type injector with the oval connector) it is NOT. It is a 1/2" shorter and has an EV1 connector on it (rectangular). Its designation seems to be "Bosch Design III", but I have to confirm that.

At a test pressure of 43.5PSIG and a maintained temperature of 72 degrees, the injectors all flowed between 260 and 266cc/min or 24.7 and 25.35lb/hr.

They are 13.9-14.6 ohms internal resistance and are factory matched at <5% error, average "dirty" balance is 3.4% to 4.5% error. Previous best was 1.4% (as delivered) and the average is 1.5% (as delivered).

Lazzman's injector set (dirty) was 4 good spray patterns, 2 fair (rated good/fair/poor, based on visible spray) and flowed:
131, 129, 130, 131, 128, 129 before cleaning
131, 132, 132, 132, 132, 132 after cleaning

From these last 12 injectors I can make one 0% set and one 1.5%

So, NOW can we put this 19lb/hr myth to rest? I thought so...

 

[Lazzman]

Excellent post.

Thanks for finaly putting this to bed Fred.

 

[Jakee]

Well, 18 injectors all with the same results. These are from 3 different 1998 SOHC Explorers from Hawaii, Colorado and Massachusetts. There are two part numbers on each, the Bosch number: 0280155734 and Fords own 97JF-BA part number (which does NOT fit Fords conventional numbering schema). It appears in some Chrysler products and most of the information on the web is in Cyrillic (Russian), which may shed some light on its unknown origins.

While it looks to be an EV6 part (pencil type injector with the oval connector) it is NOT. It is a 1/2" shorter and has an EV1 connector on it (rectangular). Its designation seems to be "Bosch Design III", but I have to confirm that.

At a test pressure of 43.5PSIG and a maintained temperature of 72 degrees, the injectors all flowed between 260 and 266cc/min or 24.7 and 25.35lb/hr.

They are 13.9-14.6 ohms internal resistance and are factory matched at <5% error, average "dirty" balance is 3.4% to 4.5% error. Previous best was 1.4% (as delivered) and the average is 1.5% (as delivered).

Lazzman's injector set (dirty) was 4 good spray patterns, 2 fair (rated good/fair/poor, based on visible spray) and flowed:
131, 129, 130, 131, 128, 129 before cleaning
131, 132, 132, 132, 132, 132 after cleaning

From these last 12 injectors I can make one 0% set and one 1.5%

So, NOW can we put this 19lb/hr myth to rest? I thought so...

Fredness - These injectors you're getting. What color are they? If I have orange injectors, doesn't that mean I have 19 LBS injectors (2001 X Sport).

You have WAY more experience with injectors so I can't argue this if you've confirmed it.

After thinking bout this for a minute I remember it was Spindlecone that said I had 19 LB Injectors so, considering the source....

I know for sure there is a split year difference in 01. Reason why is cuss I ordered a PVC valve (From the dealer) that came in looking way different than the old one. Ford's computer was showing the wrong part number for what I needed. I wound up finding the old part number and bingo, the right one came in.

 

[Fredness]

These are for the 1997 to 2000 for sure, maybe others. They are just as pictured on my site: http://rogueperformance.com/BlueprintedFuel.html
Ideally, they would be part number F7JF-9F593-AA, but they actually say "97" instead of Fords alphabetic code.

There are some "orange" and "yellow" ones out there and these are still a mystery. While they are also the Bosch Design III format, they carry different part numbers and are 19lbs/hr.

These are:
"Yellow": Bosch #0280155700, Ford#F6VZ-9F593-AA 204cc or 19lbs found in 4.6L T-Birds and 6.8L V-10
"Orange": Bosch #0280155710, Ford#F6VE-9F593-A5A (F4SE-9F593-A1B) and XF2E-CB 204cc or 19lbs found in various Fords and 99-04 Jeep 4.0L

I'll tackle these once I get mine all finished. I can only break one paradigm at a time

PM me your ECU code and I'll compare the data to mine, that's a quick and easy way!

 

[Jakee]

These are for the 1997 to 2000 for sure, maybe others. They are just as pictured on my site: http://rogueperformance.com/BlueprintedFuel.html
Ideally, they would be part number F7JF-9F593-AA, but they actually say "97" instead of Fords alphabetic code.

There are some "orange" and "yellow" ones out there and these are still a mystery. While they are also the Bosch Design III format, they carry different part numbers and are 19lbs/hr.

These are:
"Yellow": Bosch #0280155700, Ford#F6VZ-9F593-AA 204cc or 19lbs found in 4.6L T-Birds and 6.8L V-10
"Orange": Bosch #0280155710, Ford#F6VE-9F593-A5A (F4SE-9F593-A1B) and XF2E-CB 204cc or 19lbs found in various Fords and 99-04 Jeep 4.0L

I'll tackle these once I get mine all finished. I can only break one paradigm at a time

PM me your ECU code and I'll compare the data to mine, that's a quick and easy way!

Wow....Who knows. Still a mystery to me.