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> 2056 Ljet, MPG?
Geezer914
post Apr 14 2023, 03:11 PM
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Running a 2056 with Ljet, 9550 cam, 50mm TB, and 9:1 CR. Getting just over 15 mpg. Plugs look good, slight tan. Thoughts?
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technicalninja
post Apr 19 2023, 08:17 PM
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Just checked the Z injectors. 185cc for non-turbo 265 for turbo.

Clay, it looks like you might be wrong... (all of us are wrong at some point)

The whole "swapped in one day and saw a difference in the WB" states they must have been different but if Woki's list is correct (and it looks like it is) there is no way ANYONE could see the difference between a 187 and a 185...

Maybe your 914 injectors were restricted? Be way weird to have all 4 with the same restriction level.

Geezer, back in the Z car world we used a air bypass in the AFM to set idle fuel enrichment. My 75 914 AFM has this adjustment in it as well.

16 at idle is too lean for my tastes. Normally idle was .5-1.0 richer than cruise which helped smooth idle out. After you get base AFR set with the adjustable pressure regulator (it sounds like you are close) mess with the air bypass at the nose of the AFM to richen it up a bit.

I'd want my average cruise AFR to be 13.5-14.5 and my idle to be .5 richer.

Does it idle high and hunt now?
I would expect it too.

Here's a list of a bunch of injectors. some information is missing (like the 914 cc data) but it is a fairly complete list.
http://www.atlanticz.ca/zclub/techtips/inj...s/injectors.pdf
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Geezer914   2056 Ljet, MPG?   Apr 14 2023, 03:11 PM
GregAmy   Seems way low, John...unless you're driving th...   Apr 14 2023, 03:13 PM
StarBear   @Saigon71 ? :blink:   Apr 14 2023, 03:16 PM
saigon71   [b]@[url=http://www.914world.com/bbs2/index.php?s...   Apr 16 2023, 05:26 AM
VaccaRabite   You should be getting at least 25mpg. I suspect yo...   Apr 14 2023, 03:31 PM
BeatNavy   Any other issues that could cause this? Really ba...   Apr 14 2023, 03:45 PM
jim_hoyland   Ave 20ish; got 25 yesterday driving to Idyllwild   Apr 14 2023, 03:46 PM
Geezer914   I'll hook up the O2 meter and see where I am a...   Apr 14 2023, 05:51 PM
brant   I'll hook up the O2 meter and see where I am ...   Apr 15 2023, 08:39 AM
worn   I'll hook up the O2 meter and see where I am...   Apr 21 2023, 06:19 PM
emerygt350   Can't trust the O2 in that way. Particularly ...   Apr 14 2023, 06:32 PM
wonkipop   i got a stock unmolested 1.8 L jet. best i get at ...   Apr 14 2023, 09:21 PM
worn   This is only relevant in terms of energy needed to...   Apr 14 2023, 10:18 PM
r_towle   Back when I was doing deep learning of all the way...   Apr 14 2023, 10:44 PM
Geezer914   Taking Clay's advice and reset the the large w...   Apr 15 2023, 08:31 AM
anderssj   2.0 with Elgin cam, dells, Mahle Euro P/C set, Bos...   Apr 15 2023, 09:09 AM
Geezer914   With an AFR gauge hooked up, what AFR reading shou...   Apr 15 2023, 09:24 AM
DRPHIL914   With an AFR gauge hooked up, what AFR reading sho...   Apr 15 2023, 12:14 PM
emerygt350   If it is telling you the truth, 14 would be fine. ...   Apr 15 2023, 11:33 AM
Geezer914   AFM set back to normal, hooked up the AFR meter an...   Apr 15 2023, 11:54 AM
DRPHIL914   AFM set back to normal, hooked up the AFR meter a...   Apr 15 2023, 12:17 PM
Chris914n6   Are you using 1.8 injectors or 2.0? 2.0 will like...   Apr 15 2023, 12:58 PM
ClayPerrine   Are you using 1.8 injectors or 2.0? 2.0 will lik...   Apr 16 2023, 10:19 AM
wonkipop   Are you using 1.8 injectors or 2.0? 2.0 will li...   Apr 16 2023, 05:55 PM
ClayPerrine   how do those 912E injectors go on a standard 1.8...   Apr 17 2023, 05:57 AM
wonkipop   how do those 912E injectors go on a standard 1....   Apr 18 2023, 06:06 PM
Geezer914   1.8 injectors. AFR at idle is around 15.9, normal...   Apr 15 2023, 01:17 PM
Geezer914   Tweaking the fuel pressure and got the AFR to read...   Apr 16 2023, 06:08 AM
Geezer914   I called Standard Motor Products and they said the...   Apr 18 2023, 05:24 PM
ClayPerrine   I called Standard Motor Products and they said th...   Apr 19 2023, 05:24 AM
Geezer914   They said the tips and the cone are different, but...   Apr 19 2023, 09:26 AM
technicalninja   An aftermarket fuel pressure regulator does not ...   Apr 19 2023, 12:32 PM
ClayPerrine   I'd believe Clay over almost anyone regardin...   Apr 19 2023, 02:27 PM
Geezer914   I have all the respect for Clay. Just quoting the...   Apr 19 2023, 03:30 PM
wonkipop   @Geezer914   Apr 19 2023, 07:30 PM
technicalninja   Just checked the Z injectors. 185cc for non-turbo ...   Apr 19 2023, 08:17 PM
ClayPerrine   I will be the first to admit I could be wrong on t...   Apr 20 2023, 06:02 AM
emerygt350   Don't trust that afr too much. Keep an eye on...   Apr 21 2023, 01:15 PM
Geezer914   Email from Standard Motor Products   Apr 26 2023, 01:53 PM
r_towle   super accurate tuning, at least on these cars, was...   Apr 26 2023, 02:16 PM


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