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Old 10-12-2011, 02:16 AM   #76
jexeffectz
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OKAY...so it turns out that I was leaking around the BPV. My silly self forgot to tighten down the bolts to the bpv, and while driving around, I lost a bolt which opened up the area even more. Everything is dialed in quite nicely now.

Current Settings:
Scalar = 950
Code:
6.50    9     11.5    14   16.5
3.64   2.07   1.36   0.95   0.79
Car stumbles a bit, but not as badly as before. I'm planning to drop the scalar back to 910 and increasing slowly. Any idea how to decrease startup and shift stumbles? It's not as bad as before, but it would definitely help.
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Old 10-13-2011, 05:59 PM   #77
toneekay
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I noticed most of you guys are trying to tune with 1200+ cc injectors, but has anyone had any experience or issues with the 850cc side feed injectors from Five-O? I'm planning on picking up a set, but after reading around it seems like there's a lot of folks having problems with the injectors coming from them =/
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Old 11-23-2011, 02:49 PM   #78
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Bumping this thread one time. I plan on picking up a set of the 850cc top feed injectors, from the factory they recommend a latency of .75ms @ 14v. Does this seem a bit low? Anyone have a base table they could send my way?
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Old 12-18-2011, 04:13 PM   #79
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I have there 1600s running on stock ecu both on pump and E 85 with success
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Old 12-22-2011, 04:50 PM   #80
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Quote:
Originally Posted by franksl47371 View Post
...What I found however is that there top feed 1000's do not fit in the manifold hole coerecly. They are not round like the stock injectors. They have 2 parts on the injectors raised up on each side where the stock ones would be a smooth circle. This causes that raised part to hit the injector hole lip on the intake mani. Therefore it will never seal in the intake with the donut gasket. And then all the air that wants can get around the seal causing it to go very lean.

My solution was to Dremel the injector to the same size as the stock ones. This fixed the leak issue and they seal just fine...
That is interesting, and the first I've heard of that. I don't suppose you have any pictures of what exactly you dremeled off? I have been pretty much set on these injectors until reading that
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Old 12-22-2011, 05:19 PM   #81
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Quote:
Originally Posted by mecpgh View Post
I have there 1600s running on stock ecu both on pump and E 85 with success
would u mind throwing up a MAF tab screenshot with interpolation line on it? Im interested to see the scatter.

I havent tuned any of them yet. What scalar and latency did you end up with?

- ron
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Old 12-22-2011, 07:00 PM   #82
mecpgh
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Quote:
Originally Posted by PhatBotti Tuning TKR

would u mind throwing up a MAF tab screenshot with interpolation line on it? Im interested to see the scatter.

I havent tuned any of them yet. What scalar and latency did you end up with?

- ron
They fall off pretty bad down low both on pump and E , pump scaler 1373 E 85 1015....
stock ecu doesn't like them too much misses at idle on pump allot and few here n there on E. I'm getting ready to move next week so I really don't have time to do another maf plot
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Old 01-14-2012, 04:30 PM   #83
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Quote:
Originally Posted by RP31 View Post
Well, add me to the list of people with a wonky injector from Five-O.

I installed their 1200cc side-feeds, started tuning the car, and could never get a nice smooth idle. Logging the roughness monitors, cylinder #4's misfire count was through the roof at idle. Cruise and WOT were fine though. I was dealing with new injectors in a new engine with new fuel and intake systems, so I had a lot of stuff to adjust, but after ~500 miles of playing with the map, I decided the problem had to be mechanical.

Verified a lack of intake/boost and exhaust leaks, swapped coil packs, checked plugs, checked wires, etc. Finally decided to swap cylinder 2 and 4 injectors this morning and sure enough, the misfires moved to cylinder 2.

Guess I have to get in touch with Five-O.
After a second problem with these injectors that could have really cost me (Pintle cap came off of one injector, lower o-ring slipped, fuel dumping into the cylinder), I am done with Five-O. Bought the ID2000 sidefeed conversion kit and haven't looked back. Sooo much better.

Anybody want a set of 1200cc sidefeeds for cheap?
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Old 01-14-2012, 11:58 PM   #84
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Sounds like their sidefeeds are not that great, how about their topfeeds?

I was going to order a set of their 1400s, I will post some logs when I get them running..
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Old 01-15-2012, 12:58 AM   #85
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It's really not their sidefeeds.....it's pretty much all sidefeeds over 1000cc. They all run like crap on pump gas.
The best solution is to do a tf conversion.
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Old 01-15-2012, 10:26 AM   #86
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Quote:
Originally Posted by lukeskywrx
Sounds like their sidefeeds are not that great, how about their topfeeds?

I was going to order a set of their 1400s, I will post some logs when I get them running..
I have their 1600s and there great on e85. And not so great on pump gas but still doable I recently drove a 700 mile trip with these on pump gas and got 27mpg high way with afully loaded car. Can't beat that considering there three times the size of stock injectors
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Old 01-18-2012, 03:51 AM   #87
lukeskywrx
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Quote:
Originally Posted by mecpgh View Post
I have their 1600s and there great on e85. And not so great on pump gas but still doable I recently drove a 700 mile trip with these on pump gas and got 27mpg high way with afully loaded car. Can't beat that considering there three times the size of stock injectors
Its nice to hear someone has got them working, hopefully 1400s are a little better on pump.
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Old 02-07-2012, 09:45 PM   #88
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I have a set of 1000cc injectors on my STi. It was tuned by Mikey from Phatbotti Tuning. I haven't had any issues other than e85 being a bitch to start when it's cold out. And the car eating gas, but that's because its hard to stay out of boost.

For the price and lack of experience with other injectors, I'd buy them again.
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Old 02-07-2012, 10:03 PM   #89
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^^. Did u tell mike about the cold starting issues? That can be tuned out. That's not something that's specific to five-0 injectors....that's specific to e85
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Old 03-27-2012, 06:20 AM   #90
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Is anyone using these injectors on E85? What latency and flow scaling values are you using? I am having a problem with these injectors at certain throttle position AFR starts to swing from lean to rich and the car is studdering a little.

http://www.fiveomotorsport.com/denso...-fuel-injector
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Old 04-06-2012, 07:57 PM   #91
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Anybody have any Latency setting for the Denso 1400cc injectors?

My car is missing at idle pretty bad but at crusing speeds and reving up, it doesnt miss.
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Old 04-07-2012, 05:05 PM   #92
mecpgh
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I've ben having the same problem with my 1600s from them. Its been on going for a while there hard to dial in.
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Old 04-07-2012, 07:32 PM   #93
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Guess Ill just switch to E next week. Seems these injectors start acting right then.
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Old 04-10-2012, 06:58 AM   #94
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I want to bump this thread. I have been tuning a car with side feed 1200cc for the past few days. I just want to say that these injectors SUCK!. And that is putting it lightly. The fueling is all over the place at idle. The fuel corrections will be flat one minute then out of nowhere the afr will shoot rich and corrections swing wide. That may last a few seconds then back to normal for a while. But corrections still arnt what I would call acceptable.

As for idle control. SUCK! You can stop at a light and idle corrections are ok, stop at the next light and corrections will be -25. Next light they may be ok again. System voltage is stable, maf voltage is stable, map, all the data is correct and nothing to cause this behavior.

I would not recommend these injectors to any customer or client to install on there car.
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Old 04-10-2012, 08:15 AM   #95
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Quote:
Originally Posted by fastblueufo
I want to bump this thread. I have been tuning a car with side feed 1200cc for the past few days. I just want to say that these injectors SUCK!. And that is putting it lightly. The fueling is all over the place at idle. The fuel corrections will be flat one minute then out of nowhere the afr will shoot rich and corrections swing wide. That may last a few seconds then back to normal for a while. But corrections still arnt what I would call acceptable.

As for idle control. SUCK! You can stop at a light and idle corrections are ok, stop at the next light and corrections will be -25. Next light they may be ok again. System voltage is stable, maf voltage is stable, map, all the data is correct and nothing to cause this behavior.

I would not recommend these injectors to any customer or client to install on there car.
Ya I see the same thing with my 1600s but it will stall its soo bad. I need to ditch them
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Old 04-17-2012, 01:30 PM   #96
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I have the 1600's and was having trouble with the afrs swinging from stoich to ~19 at idle and light, light throttle. Turned out I had a bad injector that was misfiring like crazy (logged roughness and it was reaching 100 at idle). Log your roughness on all 4 cylinders and if you don't see anything out of whack raise your idle and play with your tip in and you can correct the stalling issue.
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Old 04-17-2012, 04:57 PM   #97
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Quote:
Originally Posted by 03aksuby View Post
I have the 1600's and was having trouble with the afrs swinging from stoich to ~19 at idle and light, light throttle. Turned out I had a bad injector that was misfiring like crazy (logged roughness and it was reaching 100 at idle). Log your roughness on all 4 cylinders and if you don't see anything out of whack raise your idle and play with your tip in and you can correct the stalling issue.
Who wants to fubar the tune just to get the car to half way run decent. These injectors SUCK period. There not worth messing with. If your one of the LUCKY ones to get a set that drives decent then cudo's. But I bet the afr and trims still arnt what I would call acceptable. Considering some of the other injector options out there.
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Old 04-17-2012, 05:57 PM   #98
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Yep time to ditch these cheap magnets
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Old 04-17-2012, 06:18 PM   #99
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Quote:
Originally Posted by fastblueufo View Post
Who wants to fubar the tune just to get the car to half way run decent. These injectors SUCK period. There not worth messing with. If your one of the LUCKY ones to get a set that drives decent then cudo's. But I bet the afr and trims still arnt what I would call acceptable. Considering some of the other injector options out there.
Ok, So I have had more then a few sets of these and have tuned A Lot more, I have only ran across one bad set all the others have been great fuel trims are plus or minus 3 on most
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Old 04-17-2012, 06:20 PM   #100
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Quote:
Originally Posted by renosubby
Ok, So I have had more then a few sets of these and have tuned A Lot more, I have only ran across one bad set all the others have been great fuel trims are plus or minus 3 on most
What sizes have you used mostly?
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