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Old 02-18-2014, 08:34 PM   #1
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Default Best injector for my boost

Whats up everyone. I am wanting to install new fuel injectors in my 99 supercharged miata, but I'm not sure what size to get or if it will really help me any with power output. Im only running 5psi at the moment but would like to bump it up someday. What are your thoughts on this?
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Old 02-18-2014, 08:51 PM   #2
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RC Fuel Injection - Fuel Injector Worksheet

Fuel Injectors - Miata Turbo FAQ

https://www.miataturbo.net/useful-sa...21/#post126318

And I downpropped you for not using the search feature because this has been done to death
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Old 06-02-2014, 11:11 AM   #3
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460's should do you real good
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Old 06-02-2014, 11:12 AM   #4
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You're using a huge Whipple and are running a Motec, right?
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Old 06-04-2014, 08:21 PM   #5
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Thumbs up fuel injector selection

Before we go down propping people, let's recognize that there's more to fuel injector selection than just flow rate. Other critical values are spray pattern, atomization, and response time. The injectors in the shared FAQ are ancient technology and I've found little information on miataturbo.net that brings the craft into the modern era.

Anyway, it's best to use a solution that excels in all the variables that I just mentioned. With a standalone ECU, one has free reign to optimize your tune and can make the most of your injectors. Otherwise, it's like running an elite suspension with obsolete-spec tires.

P.S. I'll speak with authority about this topic because I'm a fuel injection specialist.
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Old 06-04-2014, 08:37 PM   #6
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Quote:
Originally Posted by [email protected] View Post
Before we go down propping people, let's recognize that there's more to fuel injector selection than just flow rate. Other critical values are spray pattern, atomization, and response time. The injectors in the shared FAQ are ancient technology and I've found little information on miataturbo.net that brings the craft into the modern era.

Anyway, it's best to use a solution that excels in all the variables that I just mentioned. With a standalone ECU, one has free reign to optimize your tune and can make the most of your injectors. Otherwise, it's like running an elite suspension with obsolete-spec tires.

P.S. I'll speak with authority about this topic because I'm a fuel injection specialist.
Sounds like you're qualified to create a new thread on modern fuel injectors and what to look for - please do so.

PS: I recently bought Injector Dynamics ID725s since they're among the best of the current crop from what I've read on the "internetz" and are more linear than the ID1000s. I have an Adaptronic e440 Select ECU which also influenced this decision since Adaptronic have specific support for these injectors.
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Old 06-04-2014, 08:41 PM   #7
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Quote:
Originally Posted by [email protected] View Post
The injectors in the shared FAQ are ancient technology and I've found little information on miataturbo.net that brings the craft into the modern era.

P.S. I'll speak with authority about this topic because I'm a fuel injection specialist.
So go update the Wiki Mr. Specialist.

No, seriously, I'm not being an *******. Its open for editing and the fuel injector section could use some serious love.
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Old 06-04-2014, 09:20 PM   #8
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Quote:
Originally Posted by Lokiel View Post
Sounds like you're qualified to create a new thread on modern fuel injectors and what to look for - please do so.
Yep, I very well may. There are huge gains to be had when the optimal bits are used. -sharper throttle response, faster turbo spool/more mid-range torque, easier cold start, smoother idle, superior fuel efficiency, cleaner emissions...

Quote:
PS: I recently bought Injector Dynamics ID725s since they're among the best of the current crop from what I've read on the "internetz" and are more linear than the ID1000s.
Smart investment. The ID1000 are drilled out 550cc with a simple tip added. They're really nothing special despite being a marketing tour de force.

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No, seriously, I'm not being an *******. Its open for editing and the fuel injector section could use some serious love.
Right on. I've been lurking here for the past 3 years. I've been learning from y'all about Miatas specifically (having come from a VW/Audi rally background). I saw this fueling topic, though, and decided to break my silence. Soonish or later, I'll share details on my own NA6 turbo project which is coming together nicely. It'll feature advanced fueling bits and also water/meth injection. That's another one of my areas of serious expertise. Miataphiles are soooo in the dark.
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