kat thoughts with secondary butterflies, remove? - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

Indolent · 12-27-2005, 09:52 PM

91' t25 ka-t
i'm going to pull my motor yet once again, while i'm at it i was thinking about the secondary butterflies, i've read that they help the a/f mixture or something blha blah..'good for low end' but for turbo it'll help the flow blah blah

I like low end.

your guy's thoughts on removing them with on my budget set up, if anything i'll just get some kind of t28 later down the road if that's going to help

oh yeah and i might have this set up for awhile

theicecreamdan · 12-27-2005, 10:04 PM

its not like it makes the car undriveable at low rpm.

breakindrifts · 12-28-2005, 01:23 AM

Get rid of them, especially if you have an SAFC its nothing to worry about. While your at it ditch the entire emissions system. www.ka-t.org for all your ka-t questions.

speeddreamz · 12-28-2005, 02:24 AM

Don't use a butterfly valve for low torque, I dno't think they make much diff, especially since its a stock turbo u should be ok. Now if its enviornmental or smog related...thats a diff story.

ledzeppelin240 · 12-28-2005, 11:54 PM

They are a swirl control valve, they keep the air turbulent at lower speeds which increasing the efficincy of the engine. I have removed mine, just used a oil gallery plug and some anaerobic sealer on the screw.

SochBAT · 12-29-2005, 02:49 AM

You've got a KA. Lowend is already awesome.

Ditch the T25, go T3

Oh yea, SOHC > DOHC.

x2

12-27-2005, 09:52 PM	#1
Indolent Zilvia FREAK! Join Date: Jun 2005 Location: So. Cal, Riverside Area Posts: 1,110 Trader Rating: (3) Feedback Score: 3 reviews	kat thoughts with secondary butterflies, remove? 91' t25 ka-t i'm going to pull my motor yet once again, while i'm at it i was thinking about the secondary butterflies, i've read that they help the a/f mixture or something blha blah..'good for low end' but for turbo it'll help the flow blah blah I like low end. your guy's thoughts on removing them with on my budget set up, if anything i'll just get some kind of t28 later down the road if that's going to help oh yeah and i might have this set up for awhile

12-28-2005, 01:23 AM	#3
breakindrifts Zilvia FREAK! Join Date: Apr 2005 Location: Agoura Hills, CA Age: 36 Posts: 1,006 Trader Rating: (0) Feedback Score: 0 reviews	Get rid of them, especially if you have an SAFC its nothing to worry about. While your at it ditch the entire emissions system. www.ka-t.org for all your ka-t questions. __________________ [

12-28-2005, 11:54 PM	#5
ledzeppelin240 Zilvia Addict Join Date: Sep 2003 Location: Sinse Posts: 688 Trader Rating: (0) Feedback Score: 0 reviews	They are a swirl control valve, they keep the air turbulent at lower speeds which increasing the efficincy of the engine. I have removed mine, just used a oil gallery plug and some anaerobic sealer on the screw. __________________ Anyway, no drug, not even alcohol, causes the fundamental ills of society. If we're looking for the source of our troubles, we shouldn't test people for drugs, we should test them for stupidity, ignorance, greed and love of power. Looking for: JDM S13 OEM Sideskirts

12-28-2005, 02:24 AM	#4
speeddreamz Zilvia FREAK! Join Date: Jan 2003 Location: San Francisco, California Age: 40 Posts: 1,015 Trader Rating: (0) Feedback Score: 0 reviews	Don't use a butterfly valve for low torque, I dno't think they make much diff, especially since its a stock turbo u should be ok. Now if its enviornmental or smog related...thats a diff story.

12-29-2005, 02:49 AM	#6
SochBAT Post Whore! Join Date: Dec 2004 Location: Abilene, TX Age: 39 Posts: 6,428 Trader Rating: (9) Rides Gallery: SochBAT Feedback Score: 9 reviews	You've got a KA. Lowend is already awesome. Ditch the T25, go T3 Oh yea, SOHC > DOHC. x2