Blu_Drgn

Just a quick question. Does anyone just happen to know off hand what size the stock im measurement is? the reason i'm asking is because i want a BBTB but am not sure if i need to change out my IM also. any info would be greatly appreciated by a *NEWBIE*. thanx

REDZMAN

Welcome to the site, actually, you don't need to change out your IM, just bore the opening more. The stock is at 54MM I belive.

Or you can get the airram IM.

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javageek

You will have to get it matched if you want to see gains. I think the stock TB and IM are 54mm.

Doh' Posted at the same time as Redz.

Welcome to the site! I see you are from No Hope Pope.

wattsup4800

if you can afford the AIR ram IM
dont hesitate and get it

other wise the BBTB alone shows some good gains

OzFxCoupe

54mm for the stock throttle body?

I thought the stock one was only 50mm... mmm... guess not.

REDZMAN

Nope, 54. Most of the BBTB's are 58MM, the Rside is 59-61MM and the Turbo's are 70MM.

wattsup4800

i thought rside was discontinu'in the 70mm

OzFxCoupe

Are Oz spec throttle bodies different to the US spec???

On this site they reckon they're 50mm stock... Their modified BBTBs are "bored out to 55mm"!

http://www.performancestylingcentre.com.au/

Are they just mistaken? Or, as the US spec stock TB is 54mm, would I see performance gains (albeit minimal) with just a straight swap of stock throttle bodies (Oz/US) ???

With all of you guys having BBTBs I should be able to pick one up pretty cheaply...

Any thoughts?

REDZMAN

No, they just can't afford to do another run of 100 of them without some backing. Wanna lend them 1,000,000 won?

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It's possible I guess. Depends on the TB really, you sure you were reading for a 2.0? I can't see Hyundai making different ones.

OzFxCoupe

According to them, both 1.8L & 2.0L TBs are the same... so, yeah I'm sure.