ka24de intake butterfly system?

Information on the naturally-aspirated KA24E and KA24DE engines.
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weird240
Posts: 200
Joined: Mon Feb 21, 2005 10:45 pm
Car: 91 redtop 240fb sold. 91 240sx fb, 95 tercel(flat black beater)

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so iam in the process of rebuilding my ka24de. iam planning on doing a ka-t in a month or so but for now its just going to be a daily. ive done some research and have found that when i do my turbo i will have to remove the butterfly system form my intake. my question is if i use it for a daily for the next 2 months should i just take off my system now or wait till i get my turbo on? will it f*uck with my idle?


r3v_v3ng3
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Joined: Sat Feb 24, 2007 7:53 pm
Car: 91 fastback ka-t

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if your planning to take it out in the future, might as well do it now. since you have the manifold out it'll be easier to plug it. i think it'll only affect the torque not your idle.

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96NismoZ
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Car: 1996 300zx, 1992 240sx
Location: Raymond, NH
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r3v_v3ng3 wrote: i think it'll only affect the torque not your idle.
in a good way or bad way??

r3v_v3ng3
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Car: 91 fastback ka-t

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loss of torque in the lower rpm so i'm guessing bad

Shabbernigdo
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Joined: Thu Jul 20, 2006 11:36 am

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i dissabled my secondarys and i can say there is a loss in the low range but its not major but it is a little noticable.

This is on a stock ka24de.

Between 1 and 2 k you can kinda feel it but after that its not really noticable.

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96NismoZ
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so i removed my secondaries... does anyone take out the shaft the butterflys are on? i tried to do mine, but only got 25% there and its jammed. this is on a spare intake plenum i have...

Shabbernigdo
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Joined: Thu Jul 20, 2006 11:36 am

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yes the the butterfly shaft is removed and the little holes it leaves in the mainfold are sealed up

r3v_v3ng3
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Joined: Sat Feb 24, 2007 7:53 pm
Car: 91 fastback ka-t

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there should be a screw in the middle between the no 2 and 3 cylinder. dunno if you took that out.

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96NismoZ
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I did remove that screw but it still won't budge. What have you guys used to seal those holes up??

atownnismo240
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Joined: Sun May 03, 2009 8:24 am
Car: 92 hatch

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i didnt plug my holes and it runs the same a** when i plugged the holes on my old one


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