would i see alot of gains with the ITR intake mani and trottle body on my B16 or would i be better off just buying the Skunk2 components???

 

I have seen dyno graphs of the Type R versus B16 manifold.
For under 8.5 K RPM engines, the B 16 actually was better at giving you a wider power curve. I would stick with the B16 and get the throttle body bored.
Click on the link on my signature for info about boring throttle bodies.

 

I've actually read in a friend's book and they did a lot of dynos with different manifolds and the b16 manifold was better than many they tested against (JG, skunk2 from what i remember). The aftermarket manifolds did make more power at the high-end, slightly more. But the b16 manifold outpowered during mid-range and some of the top end. They even used the manifold on a b20 setup and it did very well against the comp. Just something I read and wanted to share.

 

Put it this way: Honda knew what they were doing when they designed certain manifolds for certain engines. The B16, lacking torque, got a manifold that helped to promote midrange power while the ITR received a manifold best suited to high rpm power. Your choice in manifold should depend heavily upon what goals you have, and where you want your power to be.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by The new Spaceballs &raquo;</TD></TR><TR><TD CLASS="quote">I have seen dyno graphs of the Type R versus B16 manifold.
For under 8.5 K RPM engines, the B 16 actually was better at giving you a wider power curve. I would stick with the B16 and get the throttle body bored.
Click on the link on my signature for info about boring throttle bodies. </TD></TR></TABLE>

your damn right. to be more specific, the manifold that performs better than the itr, s2 is the p30 intake manifold. no the pr3 1st gen. the p30 is equipped on all 2nd gen jdm b16's, 95+dohc del sols and 99+ Si's. trust me, this manifold makes roughly 4-5whp 4-5wtq more through the entire powerband. from 2000-8400rpm, the p30 dominates. don't believe the hype. the itr, s2 style intake manifold need more displacement to work at its full potential.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by B16C1 &raquo;</TD></TR><TR><TD CLASS="quote">

your damn right. to be more specific, the manifold that performs better than the itr, s2 is the p30 intake manifold. no the pr3 1st gen. the p30 is equipped on all 2nd gen jdm b16's, 95+dohc del sols and 99+ Si's. trust me, this manifold makes roughly 4-5whp 4-5wtq more through the entire powerband. from 2000-8400rpm, the p30 dominates. don't believe the hype. the itr, s2 style intake manifold need more displacement to work at its full potential.</TD></TR></TABLE>

Is this for real?

 

is the 2nd gen b16 intake manifold really that different from the first gen manifold?
the only thing i can think of is that the sirII manifold uses a 60mm TB and the 1st gen uses a 58mm. (i assume that they are "portmatched from factory")

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by kid-honda &raquo;</TD></TR><TR><TD CLASS="quote">

Is this for real?</TD></TR></TABLE>

Yes. The other manifolds make more peak power and more HP over 8500 RPM.
If you have stock cams stay with the second gen B16 manifold.
if you have aftermarket cams that are able to make power above 8500RPM then Type R and skunk manifolds will make more "peak" power. The B16 is a very good mid to low/high range manifold.

That is what the people who sell those manifolds will not tell you.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by gringo7718 &raquo;</TD></TR><TR><TD CLASS="quote">is the 2nd gen b16 intake manifold really that different from the first gen manifold?
the only thing i can think of is that the sirII manifold uses a 60mm TB and the 1st gen uses a 58mm. (i assume that they are "portmatched from factory")</TD></TR></TABLE>

i don't think that it is that different, but, it (p30) does make more power than the 1st gen (pr3) intake manifold. i meant to say that what i posted is true on the b16 especially. on bigger motors, the p30 still makes a good amount of power more than the itr, s2 style, but, it does run out of steam above 8K (1.8L) (7600rpm on b20vtec's) on big motors. if your ls/vtec, b20/vtec set up is mild and will not see revs above 8200rpm, then the p30 is pretty much the best intake maifold. think about it, most people buy the itr style intake manifold because the majority swears by it, yet, the b16b uses a 60mm t/b and one of the first things alot of people buy is a larger t/b. lastly, i saw a Jun car a couple of years ago and the intake that they used on it was a p30, and the motor it was equipped on had Jun 3's, valvetrain, header and much more......hmmmmm.....

 

I gained 4whp with my extrude honed ITR manifold with 65mm TB.
Engine is b16a2 with stock internals. DC JDM header and random 2.5in cat, skunk2 catback..

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ce &raquo;</TD></TR><TR><TD CLASS="quote">I gained 4whp with my extrude honed ITR manifold with 65mm TB.
Engine is b16a2 with stock internals. DC JDM header and random 2.5in cat, skunk2 catback..</TD></TR></TABLE>

that's it?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by B16C1 &raquo;</TD></TR><TR><TD CLASS="quote">

that's it?</TD></TR></TABLE>

its a mild setup on a small displacement motor what more could you exspect really... he needs some camage

ce- happen to have the graph? did you loose any midrange?

 

To be honest I think that a 65mm throttle body is too big for a b16 with all stock internals and no cams, etc...
however since you are likely planning these mods and thinking ahead, its ok