Civic-EG.com Forum 3.3.1

- Thu Nov 04, 2010 12:16 pm #221554 Hi guys.

I would like to know if it is advisable for me to port my plennum on my intake manifold or to get a smaller throttle body.

The plennum diameter is 56mm i think and my throttle body is 60 mm.

All advice appreciated.

#10 member of "White sedans FTW" club

- Thu Nov 04, 2010 7:44 pm #221601 Port matching would be best.. you want it to flow evenly... so you have to match your Manifold opening to match the TB your using.

Team XXX Racing/WGHonda
My Build Thread EG#1 --> http://civic-eg.com/viewtopic.php?p=115 ... ht=#115778
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- Thu Nov 04, 2010 9:27 pm #221618 No a stock 56mm TB is more than enough. If you use a bigger TB you will loose some torque and you whant a stepp from TB to plenum about 2mm

TB 56mm / Plenum 60mm

to prevent reversion same thing with runner to head.

http://www.civic-eg.com/viewtopic.php?t=7515

- Thu Nov 04, 2010 11:48 pm #221638 but his TB is bigger then his plenum its like pushing air from a big str8 to a lil straw. it'll have some kind of restriction... right..

Team XXX Racing/WGHonda
My Build Thread EG#1 --> http://civic-eg.com/viewtopic.php?p=115 ... ht=#115778
EG#2--> http://civic-eg.com/viewtopic.php?t=23264
H2D--> http://civic-eg.com/viewtopic.php?t=192 ... ght=#19294

- Fri Nov 05, 2010 7:24 am #221683 I was thinking the same about restriction. But apparently bigger isnt always better.

#10 member of "White sedans FTW" club

- Fri Nov 05, 2010 9:28 am #221690 What kind of engine do you use D16 or D15?
Eather way 60mm TB is to big get yourself a 56mm TB and port the Plennum to 58-60mm.

http://www.civic-eg.com/viewtopic.php?t=7515

- Fri Nov 05, 2010 9:41 am #221691 It's a JDM D15 vtec engine. I currently have a b20b (60mm) throttle on.

So i must get myself the a smaller throttle and port the plennum.

#10 member of "White sedans FTW" club

- Mon Dec 06, 2010 9:58 pm #226344 a bigger tb wont improve much just throttle response... most people i talk to say keep stock... but is the intake many stock?? you shouldn't have to do anything.... but get a stock tb lol!!

- Mon Dec 13, 2010 2:59 pm #227627 Is your D series Naturally Aspirated or boosted? I would think an NA d series is fine from factory at 58mm, but in a turbo setup airflow is your friend so a larger inlet on your intake manifold would be good.