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sjf911's Avatar
 
Join Date: Dec 2006
Location: Idaho
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I think you could easily do a monster motor with MS2, the real benefit of sequential is at low load.
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1983 3.4L 911SC turbo. Sold
Old 06-05-2014, 07:29 PM
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Quote:
Thanks, Tippy

I will assume that the MS variants up to MS3 are then fairly suitable for street/some track/low boost applications such as mine, where absolute HP is not the objective. And, the non-sequential injection will not need cam sensor?
Absolutely. Keep the injector sizes down, and idling MSII should be really smooth with nice low speed drive ability.
Old 06-05-2014, 07:43 PM
  Pelican Parts Technical Article Directory    Reply With Quote #22 (permalink)
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I think you could easily do a monster motor with MS2, the real benefit of sequential is at low load.
Only reason I'll go III in future.
Old 06-05-2014, 07:44 PM
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Just to clarify the MS3-PRO variant (above) drives up to 8 injectors on the first bank (stage). I use low impedance injectors, each with a resistor wired in series.

It has two more drivers for a second bank of injectors.

As stated above, there are modes for engines with no cam sync sensor installed (batch). You can change modes whenever you want, or add a cam sync sensor later.

When I added the Clewett Cam sync sensor months later, suddenly I had boost in first gear. Never had that before using batch fire. I have no explanation for that. It just runs much smoother with better mid-range torque.

Also, you mention horsepower. There are maps where you can control injector timing based on load and RPM. As I understand, there's a little bit of horsepower hiding there.
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Old 06-05-2014, 07:46 PM
  Pelican Parts Technical Article Directory    Reply With Quote #24 (permalink)
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