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Clean fuel injectors are always good. Not only from
a performance standpoint, but also for a keep from burning a hole
through my engine one. Over time, or even out of the box, your injectors
can get clogged and are flowing less, dripping, or even having a
very poor spray pattern. If they get too restricted you can run
lean and then melt things. Before you do any modifications raising
boost, cleaning/balancing your injectors should be done. Because
I plan to sit around 12PSI I decided to stay with my stock injectors.
So I got an extra set, to avoid down time, though it is very short,
and had them sent to RC
Eng to be cleaned and balanced. The cost is around $135.60 and
as a SoCal
Supra's member I got 10% off.
When I got these injectors back, I swear they were done the same
day they received them, they looked very nice with new O-Rings and
a technical description of the before and after. I don't have a
technical install section cus they were put in as part of my
head swap.
Before Cleaning:
| Inj |
CC/min |
Pattern |
| 1 |
435.0 |
Fair |
| 2 |
442.0 |
Dripping |
| 3 |
451.0 |
Dripping |
| 4 |
440.0 |
Good |
| 5 |
446.0 |
Good |
| 6 |
447.0 |
Good |
| System Balance: 3.7% |
Dripping is no good, but these aren't the ones in my car. It will
make me feel better when I do the swap though.
After Cleaning:
| Inj |
CC/min |
Pattern |
| 1 |
448.0 |
Excellent |
| 2 |
449.0 |
Excellent |
| 3 |
450.0 |
Excellent |
| 4 |
448.0 |
Excellent |
| 5 |
450.0 |
Excellent |
| 6 |
450.0 |
Excellent |
| System Balance: 0.4% |
Much better. These should give me more power, well give me power
back, because of a better combustion, and give me confidence to
raise the boost.
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