LS7 Fuel Injectors

[John Skiba]

5.2588
5.2588
5.2588
5.2588
5.2588
5.2588
5.2588
5.2588
5.2588
5.3354
5.4121
5.4842
5.5564
5.6014
5.6463
5.7001
5.7541

Interesting.... no change from 0 to 40kpa or did the keyboard stick Ross?

Anyways, they look to be about:

36.09lb @ 43.51psi (100% dc)
41.68lb @ 58.02psi (100% dc) - LSx rail pressure
5.25 g/sec @ 58.02psi (100% dc)

667 Crank HP 100% DC .50 BSFC
533 Crank HP 80% DC .50 BSFC

445 Crank HP 80% DC .60 BSFC (or way to small for any forced induction )

*Note: numbers are not exact spec of injector just calculation of injector table

Now lets see the voltage table Ross.

[John Skiba]

TAQuickness, you are my inspriation! as i'm falling asleep yesterday, I thought the same damn thing, and then it hits me:
these SVO injectors have to come from somewhere, they gotta be 'stock/known' in some sort of setup. so could someone please figure out what car the 42s come in stock, and then 'hop the fence' to a ford site/get ford tuning software and liberate some numbers for us?
we could really use the rated pressure/voltage offsets to be a solved issue...

This is already done and a know. That is not an issue. AEM's software even has a nice wizard. However, the LSx voltage table is a lot more complex and we have been mathmatically trying to calculate the missing portion. GM is accounting for a lot more with their PCMs then the old ford stuff did. There are threads here that go into lengthy discussions about all this and people have been "hopping the fence" since the lsx engines first came out. Some even prior to those... LT1's and earlier...

[TAQuickness]

Thanks for the info Ross... Now to make us all creamy, how's the IOS table look?

John, I was poking around in the AEM software the other day. As you noted, the lsx PCM is a little more detailed with the IOS table. Any idea what the vacuum reference is with the AEM table?