B_JAI

I have 2001 civic and would like to bore out the stock throttle bodie how much would i be looking for and what size would be
the best? i have stock lx... and what shop would u guys recommend?

thanks

Nova_Dust

Visit Leitner Performance


Throttle body boring
$225
4 Cylinder match porting (TB to intake, intake to head)
$105

I don't know the size, maybe 65mm? If it is 70mm, it would be very nice.

dingus8

get all teh breathers first..i/h/e then go for a TB bore...you probobly wont' even see 1 hp gain from it anyway

Chigga1

i agree with dingus!

if u want to expect or get a good gains.... port match your intake manifold to what u want your TB to be!

therefore it will work together better

B_JAI

Nova Dust: i don't really mean by 4 Cylinder match porting (TB to intake, intake to head) what does this do ...
and $225 do u think it's worth of the money

dingus8: I have I/H/E already

Cynikal.Mindset

screw boring it out...replace that **** with individual throttle bodies!!! now thats power!!!

B_JAI

Dat's too much.... i want to bored out my throttle body

any one that has done it? do u actually feel the difference

Cynikal.Mindset

u will feel an increase in throttle response...thats about it

dingus8

ya..it isnt' the best mod out there..you will see probobly no hp..that' s what I have saw over the years...it is like a finishing mod that you get to fininsh and get that last little bit out...or for FI it is better

B_JAI

ok so a little bit better in air flow wise ? rite...


and do u think i would need to leave the car over night
if i am going to get this done?

imported_eth0r

haha i dont think ive ever seen a itb on a d series

Nova_Dust

It is not Port & Polish, it is to port match the intake manifold to your new TB size.

I would focus on handling and suspension, weight reduction and whatnot first. Power is the last thing I deal with in my book. That's just me.

B_JAI

Nova Dust: I have shocks and spring and front strut rear strut
and steering wheel for handling

so the port match the intake manfiold to your new tb size
is this a must if i bore out my throttle bodie..

and where is this Leitner Performance got any information?

Chigga1

i say u buy a extra... so at least u can have a core.. you know what im saying??

Nova_Dust

Leitner is right the top of this page, click the banner. Port match is a good idea if you bore TB, makes everything flow better.

For handling, you can add sway bars, c-pillar, fender bracer and other things to increase handling ability. It is up to you how far you wish to go at each category. If you like to drive on winding roads and do curves, you might wish to focus on this part a little more. If straight line acceleration is your thing, and I suppose strut bars with suspension could be good enough.

Cynikal.Mindset

havent seen ITB's but I have seen dual race carbs on a street driven 90 Si...it was ****** sweet!