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Author: Subject: Acis .....turbo
turbo confustion
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[*] posted on 27-3-2018 at 08:41 PM
Acis .....turbo


This is probably a dumb question but here goes. Would an acis manifold help the lower end power of a stock 4e-efte ? I get that it helps above 6400 rpm if it is properly switched but how about 0 to 3000 while waiting for boost ? Is it worth putting in if I don't spend much time past 6000 ?:thanx:























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turbo confustion
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[*] posted on 27-3-2018 at 08:42 PM


Crap posted in wrong section
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[*] posted on 27-3-2018 at 09:26 PM


When you install a acis system you will first need to activate it somehow. It could be some sort of rpm switch or based on how much vacuum the manifold is seeing. If you look around the website youll see that a couple people have posted their results. The general consensus is that you will lose a bit of hp but youll gain more torque. Leaving the runners open all the time or closed all the time will affect your performance so I would get it planned out first before just swapping it over.
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[*] posted on 27-3-2018 at 09:54 PM


I've got no problem with the install or set up I ran it on a na engine worked great I could feel the increase in power at the crossover point just wondering if it helps bottom end stock turbo power?
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[*] posted on 28-3-2018 at 11:48 AM


Yup. It works well for turbo engines as well. The crossover point will just be different.
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[*] posted on 28-3-2018 at 10:13 PM


Gonna run one on my turbo 5e, triggered by the megasquirt. From what i saw, it helps make power everywhere if switched properly, and if I can get a little quicker spool and better breathing up top, sounds like a win-win to me.
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[*] posted on 9-8-2018 at 12:14 AM


I'm curious (not having done any searching on the subject yet). Is an ACIS actually useful for an N/A engine? I figured it would be for the turbo guys only.
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[*] posted on 9-8-2018 at 08:46 AM


It comes from an N/A engine so yes. Intake tuning is especially important on a naturally aspirated engine, because you're looking for best cylinder filling across the rpm range and the only force you have to work with is atmospheric pressure (and sound waves I guess). Matters less for boost because you're force-feeding it anyway.



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