Injector "gunk" and E-85
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Klaiceps (Oct 31, 2016)
#260
Evolved Member
iTrader: (25)
My injectors got evaluated and cleaned at Precision Turbo. The tech noted, "The injectors are going to come back with a flow sheet to show what the pre and prior cleaning is. The (black) gunk seemed to add material to the internal system so after they were cleaned and that stuff was washed out the flow numbers went down slightly."
Looks like I'll have to re-tune the injector size. I'll post the flow sheets after I get them back soon.
Looks like I'll have to re-tune the injector size. I'll post the flow sheets after I get them back soon.
#261
Evolved Member
iTrader: (25)
I got my injectors back with the flow sheet (below). The good news is that it looks pretty good again with new seals and with improved flow rates. The bad news is that the flow improved a lot on some, but not much on others. So now my variance between the slowest one and the fastest one is 1.9%. I'm not sure if that's significant. My plan is to pair up the slower injectors with the slow flowing banks in the intake manifold (it's oem and not ported). Apparently the unported manifold has slower flowing banks, which is part of why people port them.
So my question is, do you know which banks are the slower flowing ones in the intake manifold?
So my question is, do you know which banks are the slower flowing ones in the intake manifold?
#262
Evolved Member
iTrader: (25)
Found out Buschur's tests. Looks like the two closest runners to the timing belt flows the least. Perfect, I'll pair them up with my slower flowing injectors
https://www.evolutionm.net/forums/ev...low-bench.html
Today I spent the majority of the day on the flow bench. The findings were quite interesting.
The numbers below are the cylinder and CFM. All testing was done at 28" on a JKM Flow bench by BRS head services.
Here are the results of what I have found so far.
EVO8 Stock intake, w/stock throttle body:
#4-327, #3-308 (-6%), #2-300 (-9%), #1-300 (-9%), total 1235 CFM
https://www.evolutionm.net/forums/ev...low-bench.html
Today I spent the majority of the day on the flow bench. The findings were quite interesting.
The numbers below are the cylinder and CFM. All testing was done at 28" on a JKM Flow bench by BRS head services.
Here are the results of what I have found so far.
EVO8 Stock intake, w/stock throttle body:
#4-327, #3-308 (-6%), #2-300 (-9%), #1-300 (-9%), total 1235 CFM
Last edited by Thoe99; Nov 10, 2016 at 06:00 PM.
#263
EvoM Community Team Leader
iTrader: (60)
Found out Buschur's tests. Looks like the two closest ones to the driver flows the least. Perfect, I'll pair them up with my slower flowing injectors
https://www.evolutionm.net/forums/ev...low-bench.html
Today I spent the majority of the day on the flow bench. The findings were quite interesting.
The numbers below are the cylinder and CFM. All testing was done at 28" on a JKM Flow bench by BRS head services.
Here are the results of what I have found so far.
EVO8 Stock intake, w/stock throttle body:
#4-327, #3-308 (-6%), #2-300 (-9%), #1-300 (-9%), total 1235 CFM
https://www.evolutionm.net/forums/ev...low-bench.html
Today I spent the majority of the day on the flow bench. The findings were quite interesting.
The numbers below are the cylinder and CFM. All testing was done at 28" on a JKM Flow bench by BRS head services.
Here are the results of what I have found so far.
EVO8 Stock intake, w/stock throttle body:
#4-327, #3-308 (-6%), #2-300 (-9%), #1-300 (-9%), total 1235 CFM
#268
Evolving Member
iTrader: (12)
Original Data Sheet
- Injector #1 - 1260cc
- Injector #2 - 1260cc
- Injector #3 - 1256cc
- Injector #4 - 1252cc
- Avg Flow - 1257cc
Returned Data Sheet, cleaning not required
- Injector #1 - 1302cc
- Injector #2 - 1292cc
- Injector #3 - 1292cc
- Injector #4 - 1295cc
- Avg Flow - 1295cc
#269
I pull my injectors out and spray them down with WD40 to clean them out. I also try and get some pump gas going through occasionally. I went overkill I think and grabbed the 5 or 6 micron filter from fore.
#270
EvoM Community Team Leader
iTrader: (60)
I use a 10cc syringe. The "straw" from a can of carb cleaner fits in the tip and the injector fits perfectly into the large end. I then force the injector open with a 9v battery and spray the crap out of it. I'll be doing it this weekend, in fact.
I got the idea from a how-to, here on EvoM. 'Works great.
I got the idea from a how-to, here on EvoM. 'Works great.
Last edited by kaj; Jan 19, 2017 at 03:45 PM.
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lancerrally45 (Jan 19, 2017)