FS: B20z PHK intake manifold and throttle body
07-14-2004, 10:41 AM
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FS: B20z PHK intake manifold and throttle body
1999 B20z intake manifold
This manifold has nearly identical runner and plenum specs as the LS IM with the addition of a resonance chamber for added torque in the low end. Throttle body has same inlet/outlet specs as the LS TB.
Perfect cheapo mod for B20b or B18a/b owners looking for some more torque down low.
^ Pic of the 'Z' mani w/ out the resonance box. Notice the hole where the resonance box feeds into the plenum
The site where I pulled these pics from had this to say about it:
The idea is that the "resonator" chamber works like long runners and a larger plenum when the pressure waves travel back up the intake from the ports. Compared to the giraffe manifold (B20b) this gives good top end and good midrange grunt. This probably fills in the low-midrange hole we see on a B20 using an LS manifold (see dyno). There is probably a performance draw back to this system in the upper 6k+ rpm range, otherwise wouldn't see this box on the ITR manifold also?
Pics of the actual mani available upon request....
Asking $40 + shipping.
This manifold has nearly identical runner and plenum specs as the LS IM with the addition of a resonance chamber for added torque in the low end. Throttle body has same inlet/outlet specs as the LS TB.
Perfect cheapo mod for B20b or B18a/b owners looking for some more torque down low.
^ Pic of the 'Z' mani w/ out the resonance box. Notice the hole where the resonance box feeds into the plenum
The site where I pulled these pics from had this to say about it:
The idea is that the "resonator" chamber works like long runners and a larger plenum when the pressure waves travel back up the intake from the ports. Compared to the giraffe manifold (B20b) this gives good top end and good midrange grunt. This probably fills in the low-midrange hole we see on a B20 using an LS manifold (see dyno). There is probably a performance draw back to this system in the upper 6k+ rpm range, otherwise wouldn't see this box on the ITR manifold also?
Pics of the actual mani available upon request....
Asking $40 + shipping.
07-15-2004, 11:18 AM
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Re: FS: B20z PHK intake manifold and throttle body (SilverCIVIC96)
Yeah, my last car got stolen and stripped. 
Once you go w/ the 2L you'll never go back to the smaller engines, so I dropped another B20z in my new project. Thanks for the bump, I need to land a big comish check here at work so I can buy your tranny.
Once you go w/ the 2L you'll never go back to the smaller engines, so I dropped another B20z in my new project. Thanks for the bump, I need to land a big comish check here at work so I can buy your tranny.
07-15-2004, 11:52 AM
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Re: FS: B20z PHK intake manifold and throttle body (BlueTeg)
Stop getting me so excited about the B20z, I wish I had the time to find a car to drop it in right now...
Someone buy this Powa-chamba, much better choice than the LS manifold if you are keeping the motor relatively stock. Plus, it just looks cool
Someone buy this Powa-chamba, much better choice than the LS manifold if you are keeping the motor relatively stock. Plus, it just looks cool
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