[smartieab]

It can be overwhelming figuering it all out. You load the "definition file" into tuner pro to decode your cars program.

Eehack is for diagmostics and datalogs.

But all that said, there is only so much a guy can do. Its good hire someone to do the majority of the heavy lifting.

There are many out there, @Marky Dissod has been great for me.

I am thinking that might be the route I take, but I will take a look and see what happens. Maybe the fog will clear….we will see lol. @Marky Dissod TY for the file.

 

[SoCalChlln]

Yes, I just don’t advertise a bunch. I’ve got several sets tested and ready. Send me a direct message and we can get you fueling properly.

Thank you for the reply Sherlock.
Before we take any further steps and or use of your time, if I were to go with these injectors in my California Registered vehicle, will I still be smog legal and able to keep the emissions below maximum allowed numbers ?
might I need two sets of tunes, one for smog and another for maximum performance capability.
I still need to smog certificate the car every two years, and I do have the Jet DST program to do the tuning mods.
Thank You for your time and energy…

 

[Marky Dissod]

if I were to go with these injectors in my California Registered vehicle, will I still be smog legal and able to keep the emissions below maximum allowed numbers?

Better injectors, better fuel delivery due to superior atomization. Your smog legality would be utterly unaffected.
Using a tune for those injectors, your emissions performance would improve, as would drivability, fuel economy, and possibly power.

There may well come a day when the only way LT1s will pass emissions will be with
either 91 / 93 octane, or E85 - for more thorough combustion and better emissions test performance
better injectors - to be clear, OE LT1 injectors should be replaced with upgraded injectors, and not just for ethanol tolerance.

(Using 8 coils improves emissions and fuel economy (BSFC), but kalephonyuh might be dumb enough to make it illegal somehow to upgrade from one to 8 coils.)

 

[sherlock9c1]

FYI on injector O-ring replacement; the right rear line connection is swaged in and is not serviceable without grinding. And if you grind it and get the joint apart to replace the O-ring, you'll need to come up with a way to secure it. If it's not leaking, leave it alone. I do not include an O-ring in the kit for this, but if you get a new fuel pressure regulator, it'll come with new o-rings, one of which you can use.

It's next to #8's pointer in the picture below:

 

[WindSSurfer]

Let me know if you still have a set of injectors for sale.

 

[piot23]

Yep same here...just sent you pm.

 

[SoCalChlln]

Hey Tayto, yes I saw it, I apologize. I'm very close to getting a 96 Impala SS running again after a 2.5 year restoration, pushing hard on that. I'll PM you back.

And exactly what kind of injectors will you be putting in your 96.
not brand names(I know, trade secret) but general description and would you be willing to enlighten me as to your choice and if you will be able to do any tuning via JETDST ?

Perhaps allowing me to buy a set from you with your earned profit for your R&D?

 

[sherlock9c1]

Ones that flow gasoline. And ethanol. And spray well. And happen to be the same ones I put in every LT1 I get my hands on because they run great.

Yes I have JET DST. You can email me your tune and I'll add the injector data and send it back to you. I do need you to measure your fuel pressure per the instructions beforehand so I can calculate the values correct for your vehicle.

The price is listed in post #1. PM me for payment info.

 

[cdholden]

I would also like to buy a set of injectors - but can’t send PMs yet since I haven’t been back on the forum very long.

 

[sherlock9c1]

I would also like to buy a set of injectors - but can’t send PMs yet since I haven’t been back on the forum very long.

Make a post about yourself and your car over in the intro section, and that should get things going.

 

[SSLOW 96]

I am interested in these!
I have a '96 with some mods done. Heads, cam, intake, exhaust, dyno tuned.
Would I be able to drop these in and see a difference?
I currently have those "upgraded" "red" "ford" injectors. I use quotes because who knows what they actually are from ebay.

Has been running really solid, but I feel like it could be better.

I am curious about having to get them retuned or what. I do have two PCMs with the same tune on each so I could always send one out for adjustment, but very curious to see if any improvements on the current tune.

 

[PeterDuerr]

You would have to put the injector data into the PCM. Then it is best to tune your fuel trims.

There is economical tuning software in the works / available for OBD2.

https://lt-flash.com/shop/

You can throw in injectors and your car may "run", but you likely would be way lean/rich without setting parameters and tuning.

If the tuning part is overwelming, find a tuner that will do data logs. A mail order tune is really shooting in the dark without seeing how its running after.

 

[95wagon]

If your car ( read your sig ) has been tuned for those ford red tops , I see Joels offereing as NOT a drop in in your case.

 

[sherlock9c1]

@SSLOW 96 These injectors require reprogramming even if you have 36lb injectors already in your car. The short pulse adders and voltage offsets are unique to each injector design, and starting / idle / part throttle behavior will be off if this data is not correct.

 

[SSLOW 96]

Ok that makes sense and is what I figured anyway... figured I'd ask!
Would (these) upgraded injectors benefit from a new/better fuel pump too? or is stock sufficient. Stock is working for me now, but if I ever updated anything, would I need that?

Wondering how much HP/TQ is left on the table running used ebay red injectors on stock fuel pump lol

 

[91ss]

If you're not running out of injector, you might not even see a difference on an engine dyno let alone in the car. But fuel economy should be better

 

[SSLOW 96]

Might be getting off-topic for this post, but it could be helpful to others...

How do you know if you're "running out of injector"?
Would the tuner tell me when I was getting it tuned?
Since the tune I had the engine professionally rebuilt and bored .030 over and has had a little bit of head re-work, (spun a bearing in the old one I Frankenstein-ed together) but nothing crazy. Would that affect it? pretty minimal change.

 

[91ss]

When the injector duty cycles are nearing 100% Meaning that it has to be constantly be spraying to deliver enough fuel for the power you're making. Generally, you don't want it go much or even into 90's. Also, peak duty cycles occur at peak torque and not necessarily at high rpm/peak horsepower. Peak torque occurs when you cram in the most fuel/oxygen into the cylinder.
Yes, a tuner should be aware if it's getting that high and should have let you know.
The Ford 'old school' red tops are 30lbs. Stock is 24. You're probably ok but maybe getting close. One of the other guys can tell you what scanning tools work on a 96 obd2 car and you can watch yourself (or better a friend with you, you watch the road!)

Joel, understand if you want to move this to a new thread not to get yours off track.

 

[sherlock9c1]

@SSLOW 96 no you don't need to upgrade the fuel pump unless you start dropping pressure at max power. Return-style fuel systems intrinsically heat the fuel; so don't put more fuel pump that you'll need, otherwise you're just wasting power and overheating the fuel.

As far as "running out of injector" - the graph I show in the first post shows duty cycle vs. HP at 0.55 BSFC (which I'd say is generous). GM in the 1990s limited max duty cycle back in the 90s to 80%, based on factory specs.

 

[cappy p]

I’ve seen high 70’s/low 80’s % duty cycle on a head/cam 396 with 30lb injectors running at 58psi.