Are 2150cc injectors too big for my needs?

[YungTlon]

Hi guys merry Christmas !
I can get a killer deal on some 2150cc fic injectors, I have ecm link v3 and was wondering if they can be too big and outflow the fuel pump I have in the car? I have a Aeromotive stealth 340 fuel pump in the car and a aem FPR(-6an) , was also planning on doing -6an from the sending unit to the fuel rail. Was just wondering if the injectors are so big that I’ll mess something up by only having a 340 pump , I would go with something else but like I said I’m getting a good deal on them and they’re brand new ... thanks guys ! Car has a 60trim , arp head studs , tial mvs wg, 3 inch mandrel exhaust , etc .. was on 20psi on pump gas but plan on making more boost with the bigger injectors and going to e85!

 

[motomattx]

They are only a good deal if they are legit 2150's with individual data with them to prove that they are matched, otherwise I would say skip them, also 2150's will sacrifice starting and idle quality, if you don't need them I would recommend not having them, they can be a pain to tune even with good data, your pump won't outflow them, they will have a better chance of out flowing your pump.

 

[YungTlon]

That was my question , will the injectors outflow the pump is it dangerous to run? And they’re perfectly legit from fic flow tested and all with their own data I have read around a little and it doesn’t seem as bad as I think it is but I’m not sure, thanks for the information

 

[AWD-Tony]

Depending what your idc is now, you will need more fuel on e85

 

[Archer Fabrications]

I’m an FIC dealer, I can get you the best pricing on FIC products, also, I ran the 2150’s on my 2g for years without issue from 92 oct to 94oct pump to C16 and E85 and never had idle or starting issues even up in the canadian winter. I’m currently using the 1650’s In my evo. The injectors will only flow what the pump supplies it. If you have too small a pump for the injectors itll just be lean.

with that said. I’m on 1650’s with a walbro 450 on a stock block stock turbo evo.... as long as you can tune it, there is no such thing as too big. Always good to plan ahead

 

[YungTlon]

I’m an FIC dealer, I can get you the best pricing on FIC products, also, I ran the 2150’s on my 2g for years without issue from 92 oct to 94oct pump to C16 and E85 and never had idle or starting issues even up in the canadian winter. I’m currently using the 1650’s In my evo. The injectors will only flow what the pump supplies it. If you have too small a pump for the injectors itll just be lean.

with that said. I’m on 1650’s with a walbro 450 on a stock block stock turbo evo.... as long as you can tune it, there is no such thing as too big. Always good to plan ahead

exactly the information I was looking for, thank you very much for taking the time to help out! Looks like I am going to snag some fic’s for Christmas

 

[motomattx]

I’m an FIC dealer, I can get you the best pricing on FIC products, also, I ran the 2150’s on my 2g for years without issue from 92 oct to 94oct pump to C16 and E85 and never had idle or starting issues even up in the canadian winter. I’m currently using the 1650’s In my evo. The injectors will only flow what the pump supplies it. If you have too small a pump for the injectors itll just be lean.

with that said. I’m on 1650’s with a walbro 450 on a stock block stock turbo evo.... as long as you can tune it, there is no such thing as too big. Always good to plan ahead

This is what I am actually referencing here...he doesn't seem like he would have tuning skills needed to get them to carburate well without a professional tuner involved, just based on the basic questions that he has posted.

 

[YungTlon]

Car has been tuned by my dad and I and is running fine under load , never played with injector dead times and stuff though so like everything else, it’s time to learn how to ‍

 

[rabenne]

2150s are going to deliver too large of a minimum fuel mass at idle, if you are on pump gas. May work okay with e85, but why not just use some 1650s? They can deliver plenty of power for your setup, and will have a better idle. Or maybe even smaller based on your 60-1

 

[OH91awd]

They are only a good deal if they are legit 2150's with individual data with them to prove that they are matched, otherwise I would say skip them, also 2150's will sacrifice starting and idle quality, if you don't need them I would recommend not having them, they can be a pain to tune even with good data, your pump won't outflow them, they will have a better chance of out flowing your pump.

they do? ive never had an issue with mine starting and idling on 2150s. im also on e85 so that may play a roll

 

[1990TSIAWDTALON]

Hell guys, I am on super crappy 91 octane and my 2150's idle and cruise great. I can start her up and go back inside while she warms up, never had any issues but I tuned it as I sat in it and I think that has a lot to do with the way my cars start right up even without FIAV's. It is a tuning deal but 2150's can be tricky to scale down for gas. On Ethanol or C16, they seem easy for me to tune, and I'm no pro but I can feel what the car wants and doesn't like. Just takes patients.

 

[rabenne]

Marty, do you have a log showing how it idles on pump gas? What RPM do you idle at? Everyone I asked at ECMlink forums said they couldn't get proper idle on gasoline with 2150s without bumping rpm 400+ over factory idle. Nobody that said it ran fine would post a log, which left me thinking they were hiding something.

E85 requires a larger fuel mass/air mass, so I can see where it may not have the same issues trying to idle properly. I would love to be wrong on this one, but after an ECMlink employee told me he never got it idling correct on gas with 2150s, I took it to be pointless to try.

If you have some tips and tricks for dialing them in, I am sure everyone would find them useful. I have two sets of 2150s that never got installed because I want a true flex fuel car that doesn't suffer poor idle when on gasoline. I suppose I should have stated the source of my info before, I have not personally tried to dial in the 2150s on gas with 750-900 idle.*

 

[1990TSIAWDTALON]

I am sure I do Will. Let me look on the thumb drive.........
Here ya go. These are FIC 2150s and my offsets are directly off of the data sheet. The fuel tab looks rich but this is how she likes her tune. I start her up, like last Friday when I got called out, let her warm up and then go get in her and drive. She is very easy driving and the only bi*** I have is the lag from the HX40 but she rock and rolls!
I don't have any secrets, the car likes her tune just like this and I tune her while driving to get the best out of her. This run had 2 gallons of E in it since I didn't want my knock sensor to pull any of my 5* timing out of the crappy 91 octane tune she is on during the get down. She got a little lean on me at the top of the run with the EVO but I will address that in the VE table.
Let me post up a pure gas log too. Its the 2nd log. No difference, just 91 octane with the normal % of ethanol in it, which is all I can get around here now.
Here is the data sheet from the injectors I have in her too.
Marty

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[awd4g63turbo]

Here is a video I made a few days ago of a cold start of my car for a potential buyer. 2150's on pump 93, probably @ 40° at the time I made the video. Idle is at 1k rpm, which is where I set the idle to on all my cars with cams, and a bunch of other mods...

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[YungTlon]

Tons of great info on here guys, and even for those who doubt getting the big injectors and doubt they run good, hopefully everyone can learn at least something from This post, I’m learning a bit! Thanks guys!

 

[Archer Fabrications]

This is what I am actually referencing here...he doesn't seem like he would have tuning skills needed to get them to carburate well without a professional tuner involved, just based on the basic questions that he has posted.

This fourm has a wealth of information to learn how to tune yourself, just gotta know where to look!


I dont know why everyone thinks 2150’s idle bad on pump gas. Maybe if using ecuflash (which sucks compared to ecmlink) with ecuflash you need injector linearization tables, with ecmlink you just tweek global and dead times, literally super easy... especially if on speed density.

people saying they idle like crap are either
1. Not tuning it correctly, (injbatt adjust helps using provided sheet)
2. Have ecuflash (black box ecu or evo 8 ecu)
3. Have some issue in their fuel system like wrong fuel pressure or a bottleneck somewhere

 

[OH91awd]

This fourm has a wealth of information to learn how to tune yourself, just gotta know where to look!


I dont know why everyone thinks 2150’s idle bad on pump gas. Maybe if using ecuflash (which sucks compared to ecmlink) with ecuflash you need injector linearization tables, with ecmlink you just tweek global and dead times, literally super easy... especially if on speed density.

people saying they idle like crap are either
1. Not tuning it correctly, (injbatt adjust helps using provided sheet)
2. Have ecuflash (black box ecu or evo 8 ecu)
3. Have some issue in their fuel system like wrong fuel pressure or a bottleneck somewhere

this ! exactly this! i love hearing people complain about low temp cold starts on e85. mine had never had an issue cold starting in cold temps (unless the battery was dead: stupid civic battery).