hi im looking to get a throttle body for a build i just finished build the build is:
B18c1 block with jdm itr pistons
balanced internals
Head is a ITR
ferrea 6000 series valves and springs
5 angle port job
mild port job on int and exh side
skunk2 pro1 cams
ITR intake manifold has been cut open to port and polish runners

i was thinking of getting a 68mm blox throttle body but i was told it might be to big

 

68mm Omni is what I would use on your setup.

 

I 2nd Dave's suggestion

 

I'll third daves. Omni or professional products.

 

I use a 68mm unit on my DD B16a the engine is 100% internally std with good boltons and tuned the car is a pleasure to drive and very good throttle response with a nice powerband for a B16a.All B18 or B20 builds I do are fitted with one of those 68mm units.

 

I love my omni t.b. it functions almost like stock. every billet t.b. Iv had was complete garbage. they always stick and lock up

 

Werd. Thats why I have an OEM throttle body.

 

I've yet to have a POWER(professional products) TB lock up, i run a 70MM on my own car, and i have 3 builds i'm doing right now with omni 70mm's. I've had skunk2's give me stick problems but never PP or Omni.

Good results will come from a properly matched throttle body to a manifold vs a huge throttle body on a smaller manifold..

 

funny i hear alot of guys buying 68mm throttlebodies putting em skunk2 or blox manifolds and not port matching them, seems kinda retarded to me

 

the skunk2 t.b. is at the very bottom of my list on t.b's that I would run. stock style t.b.s ftw

 

coo thanx guys for your help. i just ordered a omni 68mm tb

 

From what I've been hearing the new style s2 tbs no longer have the sticking issue

 

thats the word.

but as said numerous people compliment PP and omni. i'd go for either one of those. and plan to use an omni 68mm when its appropriate.

 

Frankly I like them better just cause they're cheap and look oe lol

 

^^ Thats why I got the Omni TB for my build.

 

I have an omni power 68mm throttle body right now and it stick like crazy on my gsr. I'ma try the professional products next.

 

hmmmm, this is a first. I haven't heard anything negative about omni throttle bodys... but i think they're both made by the same company

 

[QUOTE=BigBlock22;45266693]hmmmm, this is a first. I haven't heard anything negative about omni throttle bodys[/QUOTE

thats true, i only heard good things thats the only reason why i went with omni, but it did me real dirty always stick at 2k+ rpm

 

I purchased the 70mm throttle body from Skunk2 and it works great! no problems whatsoever. the car is much more responsive and I can feel it pull harder. I can only imagine how much better it will be once i port match it to my pro-series IM.

 

My 2 cents I believe a type r manifold can't be ported past 65mm so any larger is dumb most aftermarket manifolds can be ported to 69-70mm sometimes ready for a 70 NM in ur case with ur mods depending on rpm spinning 68-70mm is good make sure manifold is port matched if ur spinning high rpms on track day 70+mm I believe real Honda spec. Scca cars run 72+mm