fmic HELP!

[$RUSSIANSPEED$]

i am on spring break so i got some time to spend on my car,,,
i am planning on putting fmic this week,,,,
i need some help on the piping size,,,
what to go with 2.25" or 2.5" pipes?
what will work the best ?

 

[mr2 II]

http://www.mazdas247.com/forum/showthread.php?t=123759220&highlight=perrin+fmic
this might help

 

[$RUSSIANSPEED$]

yeah i red through that one already and few other ones i just dont know what piping size to go with..
2.5 seem to big for stock tubo and 2.25 are kinda small?
any comments about this will help thanx.

 

[blazinrola80]

2.5 for 5 years no problem..at 8psi stock turbo and 1 year at 10..

 

[$RUSSIANSPEED$]

what mods do u have that you run 10??

 

[blazinrola80]

wouldnt advise 10 psi.. atleast with out some type or air fuel controler.. but at 8 ran like a champ... only things my car had were j back exhaust 3" steed speed mani atp gate wideband relocated maf since 06 nalogy wires 1 step colder plugs.

 

[yudkib]

blazin - with your mods, even 8is questionable without some sort of intercooler upgrade... with the steedspeed id say youre probably in the clear though.

OP if you have a midpipe and FMIC you should be good for 8psi. upgrade to the millenia PCV sold at protege garage for some turbo insurance.

 

[blazinrola80]

blazin - with your mods, even 8is questionable without some sort of intercooler upgrade... with the steedspeed id say youre probably in the clear though.

OP if you have a midpipe and FMIC you should be good for 8psi. upgrade to the millenia PCV sold at protege garage for some turbo insurance.

i have a fmic.. for years now.. hmm maby i for got to list it.. thought the picture would answer that..

 

[yudkib]

haha youre right, thought that was the OP's. my bad!

 

[Wagonbacker9]

2.5 is bigger than you need, I went with it partially because it would make relocating the MAF easier (should I want to later), and partly because then I KNOW there are no restrictions in my system between the turbo and the TB.

 

[43975]

Well, besides the Turbolife, it's been said that the MAM (which I have) is the best FMIC kit for our cars. My kit has several different sizes though out the whole thing. On the cold side it starts off I think 2.25 then in the fender moves up to a larger size that is equal to the MAF size. I think the MAF is 2.5 right?? the hot side is all the same size which is 2.25 I think
Looking back at my old threads it seems that the in/outlet on my chiller are 2.5. so that would make the hot side 2.5 and coldside 2.5 upgrading to 3?? I will say the cold pipes are equal to the intake mani size and maf size. and the hot side is equal to the turbo oulet size.

 

[Wagonbacker9]

MAF is 2.75, TB is 2.5, turbo outlet is 2"

this is why there is no "one stop size answer"....

if anything you want a cold side that is slightly smaller than hot, this is to keep the velocity the same, because the denser air on the cold side takes up less space.

 

[$RUSSIANSPEED$]

hmmm so should i go with 2.5 or 2.5?
what you guys think??

 

[Wagonbacker9]

hmmm so should i go with 2.5 or 2.5?
what you guys think??

with those choices, I pick 2.5

but honestly, I want with 2.5 for flexability. 2.25 should be FINE.