Boring out TB entry

[BigWillieStyles]

Hey does anyone know where i could get my throttle body entry bored out in melbourne?

[joyride]

any decent car workshop should know some one that is a machinist.

although if you bore out the TB, will you change the butterfly valve to suit?

[jimmeh]

Hey does anyone know where i could get my throttle body entry bored out in melbourne?
just buy a bigger bore TB its cheaper trust me:)

[todaek9]

to bore up incl changing the butterfly flap, may be cost you around 300aud or less.
up to 2-3mm bigger.
Just look in Yellow pages and you might find some machining shop.

[n/a]

just buy a bigger bore TB its cheaper trust me:)

wouldnt there also be a question of reliability when boring as well as price?

[jimmeh]

wouldnt there also be a question of reliability when boring as well as price?

i didnt mean buy one that is already bored out.
edelbrock, STR , RPM all my 66mm+ throttle bodies

[Slow96GSR]

We would charge you about $300USD to do it and that includes parts. For the same price we could get you into a new Edelbrock T.B. and you would have it faster.

[tinkerbell]

www.maxbore.com

140USD shipped

[tinkerbell]

PS - will be doing mine soon, so might save on shipping if we send a few over at one time...

[weezer]

I got mine done by maxbore. It ended up being 160AUD shipped (aust dollar was very good at the time). Highly recommend it. It only took 2 weeks from the day that i sent it.

[BigWillieStyles]

damn, 160, i was kinda hoping for less than $100, cause i know dr-drift.com will do it for me in a day, for 100 bucks.

[tinkerbell]

cool, i just messaged him... been a bit nervous about sending my TB to the USA to get it bored...

[weezer]

damn, 160, i was kinda hoping for less than $100, cause i know dr-drift.com will do it for me in a day, for 100 bucks.

This is for a new butterfly aswell not just the entry. It seems kinda pointless just boring out the entry

[Dylanamus]

ITR bore is 62mm isn't it? And I think the JDM b16a I have in my CRX SiR is 60mm (can't remember if it was that or 58mm). Either way 2mm increase should be sufficient for a streetable N/A I think. So I would probably be better off getting an ITR TB, wouldn't I?

I was initially thinking of a skunk2 PRO series intake and 66mm throttle body combo, but then I thought maybe 66mm would be overkill for my engine, even after all do work to the internals... Observations?

(Just thought I'd post here rather than starting a new thread)

[weezer]

i had my ITR one bored out to 65mm at the butterfly and 70mm at the entry

[Dylanamus]

Yeah Weezer, but you've got a full Toda b18cR in a light-ass gen II CRX, don't you? That thing probably needs the extra lungs hehe

[weezer]

Yeah Weezer, but you've got a full Toda b18cR in a light-ass gen II CRX, don't you? That thing probably needs the extra lungs hehe

I wish LOL

[panda[cRx]]

Yeah Weezer, but you've got a full Toda b18cR in a light-ass gen II CRX, don't you? That thing probably needs the extra lungs hehe

has a del slow and now has an egg

[Dylanamus]

Rmmm Wonder who I was thinking of... I'll be checking out the alleged mugen assembled b18cR gen II in a couple of days. Their mechanic is having difficulty finding a matching aftermarket fuel pump. It will be interesting, to say the least, to have a look at it...

[ginganggooly]

ITR bore is 62mm isn't it? And I think the JDM b16a I have in my CRX SiR is 60mm (can't remember if it was that or 58mm). Either way 2mm increase should be sufficient for a streetable N/A I think. So I would probably be better off getting an ITR TB, wouldn't I?

I was initially thinking of a skunk2 PRO series intake and 66mm throttle body combo, but then I thought maybe 66mm would be overkill for my engine, even after all do work to the internals... Observations?

(Just thought I'd post here rather than starting a new thread)

I've been running a skunk2 66mm tb for a while now, but i feel it's a little on the big side for my motor- stock b18c. The dyno showed the same power at wot, but it feels as though part throttle response has suffered.
I think the 66mm+ tb would be a go-er with a beefier setup. :thumbsup:

[spardikis]

wouldnt it ba a complete waste of time to upgrade you t.b to say a 66mm one, and leave the intake manifold at the stock size-which i think is 62mm for an itr? I was under the impression that it should be one size through the whole induction system or it would bottle neck.

would you need a larger intake manifold neck to match a larger t.b?
ie: a 66mm t.b with a 66mm intake manifold neck

[tinkerbell]

good point, but the answer is that the ITR manifold opening is abt 64mm anyways, so up to that no need to port match,

above that you would need to shave a little of the IM...

i think ginganggooly has a highly modifed IM, so he may share some info too...

[spardikis]

im looking at getting an aftermarket t.b to suit a stock itr intake manifold but the're all around the 600ish mark.
Any one know a good dealer?

Ive also heard from some new zealand guys that you can use a commodore t.b, like an early 90's model-which is about 66mm. has anyone done this?? they need a small hone in the bolt holes but fit fine aparently....

[Dxs]

interesting reads.. i am sure many have already read them before.. Basically a XF ford TB on a b16a1

http://www.teirney.net/civic/ThrottleBody.htm
http://www.teirney.net/civic/ThrottleBodyPhotos.htm

[XQISIT]

Just buy a XF tb get some mods done to it to fit on and it will be better then a rebored TB imo.

But then again whats the use unless its forced induction?? OR has Porting work with custom made inlet manifold with bigger runners??

[jimmeh]

But then again whats the use unless its forced induction?? OR has Porting work with custom made inlet manifold with bigger runners??

force induction is a pressurise system so 10psi will always be 10psi. so changing the TB wont affect this system. basically wat im saying if the intake manifold pressure stays at 10psi the motor wont know the difference

[ALLMTR996]

good point, but the answer is that the ITR manifold opening is abt 64mm anyways, so up to that no need to port match,

above that you would need to shave a little of the IM...

i think ginganggooly has a highly modifed IM, so he may share some info too...
No not anymore he is using a Skunk2 IM now with the 66mm TB, the STD one was modified by DynoDave but they have changed it to the S2 and found a few more KW,s.
ALLMTR996

[grnlude]

I just got my TB , which was done by MAXBore.

pic's

http://i2.photobucket.com/albums/y23/grnlude/Throttle%20Body/PICT0003.jpg
http://i2.photobucket.com/albums/y23/grnlude/Throttle%20Body/PICT0002.jpg
http://i2.photobucket.com/albums/y23/grnlude/Throttle%20Body/PICT0001.jpg

Stock one

http://i2.photobucket.com/albums/y23/grnlude/Throttle%20Body/IMG_0202.jpg

Spec's-

tapred from6 degrees to 3 degrees

Opening(CAI Side) - ~64mm
Opening(IM side) - ~63mm

this baby's going in soon.


Now...

Anyone know of a good place to have the Lude Dyno tuned in Melbourne using a VAFC II?

Pref. in the Clayton, Bayswater, Dandenong or Springvale area?

[tinkerbell]

what was total price all up?

turnaround time?

thanks for posting pics - looks great eh!!!

[CUL8R]

i got a quote from maxbore with another guy on preludeaustralia.com.

looks like express mail = 4 days up
+ 3 days for maxbore to do his stuff
+ 4 days back
= about 2 weeks

PRICES: (All in Australian Dollars)

1 TB - $137ea
2 TB - $130ea
3 TB - $123ea
4 TB - $116ea

, thanx to amperage on PA for finding out the info.

on another note tho, ive been talking with someone else and he really knows his stuff, he mentioned that for a motor making 240hp a 60mm bore is the limit of volumetric efficiancy, so as much as i want to get mine bored just like grnlude i dunno if itll be the best application in terms of power as it may result in a loss.

[fat_85_civic]

Where is the group buy going where you can get these prices?
Im interested so we should see if we can get 4 peeps togetert and get them done for 116 each.
Im in.

[grnlude]

link - www.maxbore.com

[ginganggooly]

how much would a local machine shop charge to taper a tb like that?
i don't think it's worth going through the drama of sending a tb overseas just to have it tapered...

[fat_85_civic]

maxbore doesnt taper it he bores the whole thing out and makes a new butterly for it.

[ginganggooly]

grnlude didn't mention that it had a new blade put into it, or the dimension of the blade, only the specs of the taper.

maybe he'd like to clarify that for us.

[grnlude]

Maxbore does taper the TB. It goes from 6deg to 3 deg. He also installs a new Throttle Plate as well.

[ginganggooly]

what is the diameter of the blade?