what size tubing should i use for my manifold? i can get 1.37" i.d. and 1.62" id.

ill probably be ordering it from jgs precision. are there any other sites that have stuff for making manifolds???

 

What sort of manifold?

 

id use whatever size the exhaust ports are.

 

well its gona be a log style...kinda. its going to be like one i saw on a car on this site. kinda log style. ehh i think ill get 1.62i.d.

 

If log style than just buy some Tees and Els in Schedule 40 from http://www.mcmaster.com/. What size to get will depend on where you want the turbo to be most efficient. Smaller sizes will spool sooner but won't breath into the higher RPMs as well.

 

well im boosting my b18a1 and wont really be going above 6500rpm. so smaller would probably be better right just so it spools faster and wont need power at very high rpms since im not going above 6500-7000rpm? o and its a t3 if it matters

 

from mcmaster.com. p/n#45605K515 for the 90 degree elbows and p/n#45605K625 for the T's.

 

I used the 1.5" sched. 40, 90 deg bends from mcmaster. u might want to go smaller if you are not going to run much boost. don't know what your intentions are.

 

ok, for now until i get things worked out im going to run 5.6psi, then when all my stuff like fuel and all that good stuff is worked out im going to run 7-9 psi on my t3. wont shift above 7k rpm. yeh so thats what all im gona be makin this for. want it to spool fast but still have good power up top.