intake and exhaust Diameter for 20v

[chinozie]

Hi guys...

need your assist...
does anybody know what is the stock diameter (mm) for :

1) intake and exhaust port for silvertop
2) intake and exhaust port for blacktop

 

[KHWONG]

Hi guys...

need your assist...
does anybody know what is the stock diameter (mm) for :

1) intake and exhaust port for silvertop
2) intake and exhaust port for blacktop

sound like someone goinng to rebuild engine ka?

haha..

good info if someone can provide here..\

thanks

 

[scomatic]

both intake (manifold & not the ITB) is about 60mm.. exhaust not sure.. but blacktop bigger than silvertop

 

[chinozie]

KHWONG - heeee...engine no power already...others car are getting faster and faster...still my car MSCB !

thanx scomatic, buthow actually to calculate intake port size ? the eye drop shape...:hmmmm:

one more thing...whats is the gasket size for intake n exhaust ? how many mm in differences...?
heeee...might need to calculate it at spare part shop...

 

[pcmoddingmy]

I have a spare 20V BT head at home. Will try to get a measurement for you when I go back during CNY.
As for the intake port (eyedrop shape), i think the round shape is calculated separately from the eyedrop shape.
You looking to get the exact gasket or gonna port the intake/exhaust ports?

 

[scomatic]

KHWONG - heeee...engine no power already...others car are getting faster and faster...still my car MSCB !

thanx scomatic, buthow actually to calculate intake port size ? the eye drop shape...:hmmmm:

one more thing...whats is the gasket size for intake n exhaust ? how many mm in differences...?
heeee...might need to calculate it at spare part shop...

:hmmmm: no ideal.... normally i just calculate left right only... height calculate too... but not sure the size...

 

[chinozie]

pcmoddingmy - Thanx man...just the measurement...intake n exhaust diameter and gasket for both SVT n BT ...

Just to differentiate only... :D

 

[BDK8671]

http://www.zerotohundred.com/newforums/toyota/229688-full-overhual-for-bt-engine-3.html

like this shape ? ?