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Should I (naturally aspirated) install bigger injectors now?

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Old 03-21-2014, 12:43 PM
  #21  
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Default QUICK QUESTION GUYS!!!

Originally Posted by DNMakinson
You're fine. If they are in good shape, then a reasonable price. If the rubber parts need replacement, then they can be found. Just wanting to be plain, and perhaps add some humor (sometimes difficult to convey via text).

I am running the same Inj with good results N/A with MS3. Turbo is not in yet, but build is in progress.

The particular route I went was to buy some in rough shape for $10 each and then add $22 each to have them cleaned, checked, and the bits replaced. Pretty much same total $$.

Easy to change out. Just watch the little rubber spaces that go between the rail mounting tabs and the mounting surface (head or intake manifold, I don't remember which). When you pull the bolts and move the rail, they can fall out.

Hey dudes i got the injectors in today and wow they look great, the picture did not do them justice. even the rubber o-rings are in good shape and i have a spare RX-8 fuel rail laying around. lol


Now to the important stuff.

What do i need to change in my engine constants.
i know i use the little calculator tool for the REQ-Fuel.

but what about the other options!! please respond im going to try and throw them in today!
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Old 03-21-2014, 12:45 PM
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Dead times might be different.
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Old 03-21-2014, 10:37 PM
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Originally Posted by concealer404
Dead times might be different.
OK, well how do i change it?
don't know if you are running ms2 or somthing. I am running MS1/PNP.

here is a screen shot of my constants. Dont see anything about dead-time

Should I (naturally aspirated) install bigger injectors now?-engine-constants.png
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Old 03-22-2014, 04:15 PM
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Originally Posted by zacktrotter_uncc
OK, well how do i change it?
don't know if you are running ms2 or somthing. I am running MS1/PNP.

here is a screen shot of my constants. Dont see anything about dead-time

Attachment 106997
Set "Injector Opening Time (ms) [which is now called "Dead Time"] to 1.00 and I have Battery Voltage Correction at the equivalent to 0.20.

Since these are High Impedance, I don't understand the PWM Limit and Time, but that is beyond my experience (Never had MS1)

Last edited by DNMakinson; 03-22-2014 at 04:18 PM. Reason: Removed un-necessary dig
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Old 03-22-2014, 08:20 PM
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Originally Posted by DNMakinson
Set "Injector Opening Time (ms) [which is now called "Dead Time"] to 1.00 and I have Battery Voltage Correction at the equivalent to 0.20.

Since these are High Impedance, I don't understand the PWM Limit and Time, but that is beyond my experience (Never had MS1)
Thank you sir. props to you
this site is helpful when i get meaningful and helpful answers rather than just..."tune them"
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