im finishing up the Px install tomorrow and hopefully will have a spot on the dyno with this race wars goin on next month.( which also happens to be my emission testing month)

heres the updated setup

GSRlong block 12.2-12.6 CR according to zeal
pr3 pistons 81.5 bore
BC3+cams supertech 60lbs springs
supertech flat faced valves,milled .015-.02(not sure how much was milled by previous owner)
PX manifold 70mm TB portmatched
ebay 3 inch SRI with 3.5 v stack and filter

ebay Tri-y rep. header merged to 2.5 flexpipe and hiflow cat with vibrant muffler
205/50/16 tire


old picture that shows intake tube with old filter

its been cut right at the cross section between dizzy and shock tower to fit the v stack under hood so i can use that section to add 3.5 pcv pipe that way i can slide it in and out to increase/decrease length.


i would like some advice what would be a good starting point for the pipe length?

whats the most common length ratio between 3 and 3.5 inch pipe for the intake?

 

Mostly its something between 700-950mm length

 

Is that for 3 inch or 3.5 part?

 

thats for the total length, i would try 40% 3.5" and the rest of the length 3"

 

been thinking about doing the same thing myself, in for more info.

 

soooo i had some time today.
after i spent about 2 hours trying to find a piece of 3.5 pipe

went through my garage and found a bottle of acetone that was just what i needed.

and while the kid was sleeping i made this