I am currently in the process of accumulating parts for my B16a build. I just want something that I can daily drive in and turn low thirteens in as well. It's going in a '90 Si so the motor doesn't have to be as stout as it would in heavier chassis. Nontheless, I've got an ITR intake manifold Im bolting onto it and well frankly I don't want to put my small TB back on there and restrict the flow.

From what I have been told and found out the ITR opening in the manifold is either 68 or 65 and I was curious if I should just buy one of these or look for a larger mm opening with a taper. I know there are a lot of smart people on this particular forum in honda-tech and I want to know what is best for the setup I plan on building .....

so far I have this planned:

-OBD0-OBD1 conversion:
-cam setup to be detemined (pro 1s or something)
-appropriate valvetrain for cam setup
-thinking about CTR pistons keeping headgasket the same thickness.
-ITR intake manifold
-throttle body I end up deciding on
-2.25-2.5 mandrel exhaust
-some form of high end header to be purchased sometime this spg. when school lets out.

Im leaving out quite a few things in the build process, but that is the gist of what you all would need to know I suppose. thanks for the assistance.

 

send your throttle body to get machined to match your opening

MAXBORE.com

just read their 1st page

 

I've seen that option. Im probably going to opt for buying a used ITR throttle body.

I was looking to get more of a reply on the subject of tapering and learn from some of the poeple who I know can help.

 

i wouldnt go with ctr pistons, it not worth it , go with jdm itr

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by nokturnal_munkeeboy &raquo;</TD></TR><TR><TD CLASS="quote">i wouldnt go with ctr pistons, it not worth it , go with jdm itr</TD></TR></TABLE>

What about CTR pistons is "not worth it", They offer a higher compression ratio than my motor as opposed to the ITR pistons. As far as detonation is concerned, 93 octane plus abounds in my locale.

I don't mean to sound a smartellic by any means, I would just like to know why I should do something as opposed to doing it becuase someone thinks I should.

 

pm'ed

 

thanks for nothing all motor section.

 

heaviest of all B series pistons.

Jay_Sensing - "Flame travel is not so hot on the PCT's. The dome is dead center and it causes an uneven burn on the intake side only"

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by stockbee &raquo;</TD></TR><TR><TD CLASS="quote">I've seen that option. Im probably going to opt for buying a used ITR throttle body.

I was looking to get more of a reply on the subject of tapering and learn from some of the poeple who I know can help. </TD></TR></TABLE>

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by stockbee &raquo;</TD></TR><TR><TD CLASS="quote">thanks for nothing all motor section.</TD></TR></TABLE>

no need for taper, thats why you dont have a response its all searchable help yourself you ungrateful H-T member
i know some things and those are things i will respond to i wont just give an answer for fun ive thought about your same question and i searched.
"eureka"

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by allnaturalb16 &raquo;</TD></TR><TR><TD CLASS="quote">

no need for taper, thats why you dont have a response its all searchable help yourself you ungrateful H-T member
i know some things and those are things i will respond to i wont just give an answer for fun ive thought about your same question and i searched.
"eureka"</TD></TR></TABLE>

and what did you find pray tell?

 

i have been using civic type r pistons in my build for over a year now and i have over 30k on the engine the pistons have an even golden brown burn on it so i know they are burning good. I love these pistons, i say go with them.