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4.6L General Discussion This section is for non-tech specific information pertaining to 4.6L (Modular) Mustangs built from 1996 to 2004.

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Old 10-30-2010, 12:25 PM   #1
cliffyk
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Default EV1 or EV6 redux...

There was a recent thread (sensibly closed at the request of the OP), regarding EV1 vs. EV6 injectors, that contained some misinformation as to which is which, and what's what.

The difference between the EV1 and EV6 units is not the electrical connection, but rather the physical size and internal design of the injectors.

This is from the FRPP catalog:

Click the image to open in full size.

Between these the EV6 is more desirable as it has quicker action (the pintle has less mass, and the coil saturates and de-saturates more quickly/cleanly). The EV6 also has a 4 or 6 "nozzle" spray pattern for improve atomisation of the fuel.

The '99 to '04 GTs came from the factory with EV1 injectors, with the Jetronic/Minitimer style connector.

Here are the injectors offered by FRPP, you can see that both the EV1 and EV6 can be had with either connector--the EV14 is yet another evolution of the design.

Click the image to open in full size.

For the OP of the other thread, if the 39lb/h EV6s will supply enough fuel I would select them (with connection adapters) over the 42lb/h EV1s.

Here's a link to the full FRPP Fuel Injectors and Adapters section from the FRPP catalog. There's some good MAF info too, great reading...

---------------------------------------------------
FWIW, I just recently installed a set of the 24lb/h EV6 injectors (FRPP #M-9593-AA02, purchased from a forum brother) in my '03 GT, and after getting the AFR dialed in (I had to set the high slope to 25.16lb/h) I can report that the engine is happier with the closed loop AFR better controlled; and much more consistent (less load dependent) open loop fuel control as well.

Picked up 1/2 to 3/4 MPG as well.
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Last edited by cliffyk; 10-30-2010 at 03:12 PM.
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Old 10-30-2010, 12:46 PM   #2
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Thank you Cliff for the information, this really helps. You came through as always!
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Old 10-30-2010, 12:57 PM   #3
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cliffy is the man! thanks for the info, i thought the adaptor was the only difference
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Old 10-30-2010, 09:59 PM   #4
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Good read as always, nice to see Ford is putting this info out there for anyone to see. Was there any reason the list was missing the larger LU80's or was it just an older screen shot?
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Old 10-30-2010, 10:10 PM   #5
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That was not the latest catalog (I linked from my website), here's the direct link, see page 206...
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SOLD! - 2003 GT, UPR X, FRPP 24lb/h, Magnaflow, PP 70mm TB & plenum,
Delta Force tuned, Steeda UDPs, Ralco flywheel,
RAM HDX clutch, 3.73s, 262 rwHP/305 lb-ft.

New ride (7/1/2013) 1998 Mercedes SL500-5.0L 32V VVT 326/347 HP/tq


Engineering is, at its base, making what you want from what you have.
At its extreme it is making what you want from what you can get.

Last edited by cliffyk; 10-30-2010 at 10:14 PM.
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Old 10-30-2010, 10:28 PM   #6
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Quote:
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That was not the latest catalog (I linked from my website), here's the direct link, see page 206...
Ok cool, I was just making sure you didn't have anything against them. I may need a set in the future.

I should also clarify that they are not physically "larger" they are just have a higher capacity. The housing its self I believe is near if not identical to the LU60's I have now. I am sure you knew that but just in case someone else took it out of context.
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Old 10-31-2010, 02:07 PM   #7
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Good stuff, thanks Cliff
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Old 10-31-2010, 02:07 PM
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