NoPistons -Mazda Rx7 & Rx8 Rotary Forum

NoPistons -Mazda Rx7 & Rx8 Rotary Forum (https://www.nopistons.com/)
-   Single Turbo Discussion (https://www.nopistons.com/single-turbo-discussion-13/)
-   -   Oil Restriction For To4s? (https://www.nopistons.com/single-turbo-discussion-13/oil-restriction-to4s-17702/)

apexkw 05-22-2003 01:18 PM

i am piecing together my own kit using the obx manifold and a TO4S turbo, just wondering what you guys use for a restriction in the feed line, if any? that is really the only thing i am not sure of, thanks

Midnightdriver 05-22-2003 03:49 PM

You want you supply line and drain lines to be as un-kinked as possible. always have a good flowing supply of oil.

94touring 05-22-2003 04:51 PM

You don't want your feed line to be larger than 3an, or you can get oil blow by. 10an would work fine for the return line.

vspecpgt 05-22-2003 04:56 PM

ok cool, so just do a 3AN feed line?



sorry if this is confusing, i am doing the turbo kit, i was on apexkw's name when i posted,



anway just wondering cause i know on apexkw's rx6 kit they included a special fitting to restrict the oil... thats the one that took like 4 months to get... but if 3 AN is all i need more power to me!

94touring 05-22-2003 05:03 PM

Ahh yeah thats right!! I had the rx6 kit and they had a restrition on the oil feed line....very small and probably oil restriction overkill. I am using 3an, pretty sure everyone else does too. I don't have any special restriction on the fitting that screws into the oil feed flange on the turbo, i'd guess its about 3 times larger of an opening than the apexi restriction.


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