Reboring throttle body

[Maxx]

u guys know any place/shop that can do throttle body reboring?:hmmmm:

 

[GT_AUTO]

ngai seng molding at summit.behind summit shopping center.

 

[Maxx]

ok. thanx.
any other place.?

 

[FuzzyKezzy]

maxx hope you dun mind if i borrow your thread.

reboring TB is to allow better and smoother air flow am i right? so how about reboring the exhaust header? will it give the same effect as well?

 

[Maxx]

no problem.
never seen people rebore header. coz usually change to aftermarket one, already large enough.

 

[FuzzyKezzy]

i see.. how about porting it then? not the same right?

 

[Maxx]

porting or port n polish (pnp) usually done at head inlet/outlet.
porting is to enlarge the opening n polish to make the surface smooth.
maximum polish usually done at exhaust/outlet to reduce carbon buildup n smooth exhaust flow.

im looking for place to "port n polish" my engine throttle body. hehe

 

[GT_AUTO]

i see.. how about porting it then? not the same right?

usually this term is only apply on turbo exhaust manifold.they port it to make
it bigger so the flow will be much better.for n/a,they change it to performance 1.

 

[epitBDL]

u rebore TB fr wat car? what wuld be the ideal over size?

 

[Maxx]

stock tb is 35mm. yep, very small. wanted to rebore maximum to 40mm.

 

[davidv00]

bear in mind oversize port and polish will result in leakage, cracks and overheat.

 

[Maxx]

yes.
40mm is the maximum safe limit to my tb.
btw, coolant line below the tb for fast idle warming up also has been by pass.
no more hot running coolant at the tb.