Has anyone used knockoff Bosch fuel injectors or any other knockoffs? For a daily driver I wouldn't bother but for a challenge vehicle I'm tempted to try them. I've seen pictures of the poor spray patterns and tests where they don't flow the same as OEM. Still for a challenge car they can't be much worse then the junkyard ones I've been finding.
I'd use junkyard injectors over cheapos. They don't really "wear out," they just get dirty or stop working entirely.
Its the dirty and not working part that I keep fighting. Also the largest Bosch junkyard ones I can find are about 36-39 lbs. Bumping up fuel pressure gets them to flow more like 42's but I'm now at 100 duty cycle and need to go bigger. I'd like to find a cheap set of 60's which is why I'm looking into the knockoffs.
You wont really know until you try to tune the car. From what I know the biggest problem is the consistency of the injectors.
I would think the injectors off of any turbocharged or flex fuel vehicle would be near your 60# goal.
Any idea what other vehicles I should be looking for? I've been grabbing 39's out of turbo volvo's but even those are hard to come by. Flex fuel vehicles have only turned up stuff in the low 30's.
What color Volvo injectors you been grabbing? Iirc there's at least one set larger than 39lbs but they would be easier to find on eBay ("green Giants" and I think teal) also it's maybe too big or maybe your yard doesn't have any but look in the ford section for propane powered fleet vehicles like p71,vans l, ect they have 1200cc injectors
Edit: if your low imp then turbo dsm injectors are 440cc and also cfi throttle body injected ford "brown tops" 60-68lb at 55psi
I've been grabbing the blue Volvo ones. I've been hoping for some green 42 lbs ones to show up but no luck so far. Its been a while since I've seen a turbo DSM or RX7 in the yard but they are on my list even thought I'd have to adapt them to fit my intake. High imp would be nice but I can make low ones work.
I've never come across a brown top injector from a CFI ford. I've heard they mount a little different but can be made to work. Around here anything before 1990 has rotted out or gets crush since there is a low demand for parts.
Just double up, use twice as many of them ...
Turbo Mitsubishi cars have the brown tops. I have 6 untested and four tested good brown tops for my 924ssc project.
The same injectors are also in the ford supercoups. I think I got a set cheap from a SC owner that was upgrading.
DSM injectors are 450cc low impedance - blue from 90-94 (turbo 5 speed cars) 390cc low impedance (pink? maybe brown what Dean is talking about?) 90-94 auto trans cars) and then black 450cc low impedance for all 95-99 turbo cars auto or manual
I forgot to mention I have x2 sets of injectors for 4 cylinders. 1 set of 4 of Siemens 660cc and another set of (4) 450cc DSM OEM Injectors. I can't tell from your post if you need 4, or more, but I would let them go cheap if it would help.
Injectors would be for a turbocharged Jeep 4.0L inline 6. Is there a cheap way to adapt 11mm injectors since the current ones are 14mm?
"I called the witch doctor and this is what he said..." Seriously. Cleaning injectors is budget friendly.
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