Anyone know ph1 throttle body size in mm??

[Alex_X93]

Need to find out standard ph1 throttle body size/diamiter pls??

 

[mini-valver]

Internal or external?

External is 70.

 

[Alex_X93]

Im guessing internal. I was told about an inlarged 64mm tb but unsure on original size?

 

[sideways danny]

60mm butterfly I believe

 

[caister]

think the PH1 is 62mm internal

 

[Alex_X93]

Thanks for above input seems 60-62 would give a 2-4 mm diameter increase over original?

 

[mini-valver]

Yeah, the restriction is the inlet tract, not the size of the TB. The S1600's make 220 bhp on a 60mm single TB.

 

[deltav]

is deffo 62mm