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Old 09-10-2010, 08:53 PM   #1
Lucky Strike
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Default 960cc injectors?! $160!

I just recently found out that you can have your stock injectors reflowed from stock levels to upwards of 960cc for around 160 bucks. I just wanted to let people know this reflow service is available and you dont have to be out a ton of money for larger injectors (like 600 or so!). I didnt know about this until after i sent my injectors to FIC to be cleaned and tested. They called me letting me know about it and i jumped at the opportunity to be able to run E85 on my sti for super cheap. Jens is a super awesome guy and has gone to extraordinary lengths for me between questions and my vehicles. Post up if you have come across any one else doing this or if you've had a good experience. This isnt just a FIC post! Oh, and they said they can do different cc sizing as well if your setup isnt as big, but 960 is about the max for top feeds. I waited a while before i posted because i wanted to make sure i didnt have idling issues or bad fuel mixture in a cylinder due to the reflow mod and so far everything has been going well.
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Old 09-10-2010, 11:04 PM   #2
sense of nature
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Don't do it.. it's a hit or miss .. been there done that
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Old 09-11-2010, 02:50 AM   #3
seanathanq83
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i modded my stock 02 blues to 800 cost me nothing
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Old 09-11-2010, 02:45 PM   #4
DSM_Outback
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Is this where the pintle gets wacked with a punch?
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Old 09-11-2010, 02:50 PM   #5
WeldingHank
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i modded my stockers, and got 860's. some have gotten 700's some 900's. its hit or miss as said above. if you do this you MUST HAVE THEM FLOW TESTED PERIOD. you cannot just mod and start tuning and hope for the best, it won't work.
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Old 09-11-2010, 03:02 PM   #6
69subaru360
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Quote:
Originally Posted by seanathanq83 View Post
i modded my stock 02 blues to 800 cost me nothing
I've done a few sets, they ran good, no problems.

Quote:
Originally Posted by DSM_Outback View Post
Is this where the pintle gets wacked with a punch?
No, on the top feeds you remove the cap at the end.

Quote:
Originally Posted by WeldingHank View Post
i modded my stockers, and got 860's. some have gotten 700's some 900's. its hit or miss as said above. if you do this you MUST HAVE THEM FLOW TESTED PERIOD. you cannot just mod and start tuning and hope for the best, it won't work.
Sure you can. I've tuned a few sets of them that were decapped and never flow tested with no issues. 820 is a good starting point on the scaling. I adjust latency, tip in and a few other things as well.

I think what you are referring to is that there can be some variation injector to injector. Sure, it's possible, but real world, I have not found it to be a problem. If you are extremely picky, reluctant and anal about your car, go ahead have them flow tested, it's not that expensive.
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Old 09-11-2010, 03:39 PM   #7
LiquidForce
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I had my injectors flow tested after removing the cap and the variation from one injector to the next was very high. My lowest injector flowed 860 and my highest was 940.

I wouldn't recommend just cutting off the caps instead I would go with a company that welds new caps on and guarantees a matched set.
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Old 09-12-2010, 11:30 AM   #8
Lucky Strike
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When i had FIC do mine they bench tested them before modification, modified the restrictor plate, and then flow tested them after modification, all for 160 bucks.
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Old 09-12-2010, 04:40 PM   #9
CKxx
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People have been doing this for at least 5 years. That is how old mine were when I removed them because I was sick of the driveability issues.
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Old 09-12-2010, 05:02 PM   #10
69subaru360
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Quote:
Originally Posted by CKxx View Post
People have been doing this for at least 5 years. That is how old mine were when I removed them because I was sick of the driveability issues.
I can tune them so they run just like stock zero issues. It seems like most of the people with problems just set the scalar and maybe change the latency to some value they found online. There is more to it than that.

To really get these to run right adjust-

scalar
latency
tip in
all the tip in comp tables
raise idle at least 100 rpm
warm up fuel comp
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Old 09-12-2010, 07:01 PM   #11
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K, first.... No you can't. You even said so.

"raise idle by 100"

Second,

No. If you don't understand the danger in running an unmatched set of injectors I feel sorry for people that let you near their vehicles. I'm not against modding injectors in any way, done it twice! However, not making sure they all flow the same amount before running them in your car is dumb for obvious reasons.

And drivability does suffer. Guarenteed. That is why the next time I need injectors they will be brand new Bosch, if it's good enough for "ze germans" it's good enough for me!
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Old 09-12-2010, 07:14 PM   #12
69subaru360
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Quote:
Originally Posted by Krang View Post
K, first.... No you can't. You even said so.

"raise idle by 100"

Second,

No. If you don't understand the danger in running an unmatched set of injectors I feel sorry for people that let you near their vehicles. I'm not against modding injectors in any way, done it twice! However, not making sure they all flow the same amount before running them in your car is dumb for obvious reasons.

And drivability does suffer. Guarenteed. That is why the next time I need injectors they will be brand new Bosch, if it's good enough for "ze germans" it's good enough for me!
Why do I even bother?

In the real world, not teh interwebz, if they were even before, they are even after you're just removing a cap. If you're anal about it, by all means have them tested so you can sleep at night.

If your driveability suffers, you don't know what you are doing. Period.

You need to raise the idle because they don't atomize as well at low rpm, having the car idle at 8 or 900 rpm is no big deal and doesn't affect how it drives at all.

I give up, no more replies from me to this thread.
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Old 09-12-2010, 07:37 PM   #13
WeldingHank
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Mine idle flawlessly and drivability is better than stock. Spend the time to adjust them properly and you shouldn't have an issue.
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Old 09-12-2010, 07:38 PM   #14
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Default

Quote:
Originally Posted by Krang View Post
K, first.... No you can't. You even said so.

"raise idle by 100"
If your trying to say you can not raise the idle rpm,you are a completely wrong.
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Old 09-13-2010, 12:50 AM   #15
KMFDM
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Well, regarding a topic brought up, what would one consider matched injectors to a degree? How much room for tolerance is there exactly?

My modded Dark Blue's were tested and cleaned by WitchHunter Performance and of my 4 injectors, the lowest was 958cc and the largest was 972cc minimums. I have ran on that setup no problem on both my td04 and 20g.
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Old 09-13-2010, 07:51 AM   #16
seanathanq83
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Quote:
Originally Posted by WeldingHank View Post
i modded my stockers, and got 860's. some have gotten 700's some 900's. its hit or miss as said above. if you do this you MUST HAVE THEM FLOW TESTED PERIOD. you cannot just mod and start tuning and hope for the best, it won't work.

i have run mine and many other sets i have tuned without flowing, and had egt and afr sensors to verify one cylinder was not going rich or lean and out of all the sets i have seen flow tested they were all with in about 3-4% which is within spec, not sure how people get 960, or heck even any where over 850, but what you have to realize if you can set the scalar to whatever you want and adjust the latency and fueling to compensate and everything will still work fine so if you set them around 800-815 it gives you a safety cushion if you have one that flows low compared to the others

it also depends if you have light blue or dark blues
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Old 09-13-2010, 12:49 PM   #17
Lucky Strike
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Default

FIC didn't just remove the pintle cap or restrictor plate. They removed it and drilled it to a specific size. Then the injectors were flow benched on ANSU machine and I was supplied with a spec sheet. Mine came out to less than 1% difference. Latency tip in scalr were all modified. Idle however is 100% fine at stock values. Cold startup was modified as well. Getting injectors tested after any modification just m.akes sense.
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Old 09-13-2010, 01:08 PM   #18
Lucky Strike
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The pintle caps were replaced after modification if I didn't make it clear. Some people seem to be getting in a tiff about it.. I'm not sure why. What do you think your buying when you purchase DW injectors? Why do you think they buy cores? They are reflowing stock ones and reselling them with huge upcharges.
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Old 09-13-2010, 01:17 PM   #19
wrxwhat
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I'm just wondering why this is in the Built Motor section
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Old 09-13-2010, 03:22 PM   #20
RLR257
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if you do it, have them flow tested as said above. Witch Hunter does it for $25 an injector i believe ...and flow tests them. the closer they are the better.
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