Hi I am in the process of putting togeting the oil system for my twin turbo setup, Do anyone know what the size of the oil supply on top of the engine is that goes to the turbo's....I am trying to convert to a AN line, and need to know what metric size it is, and also

Is it possible to tap the stock oil return lines to accept a An style fitting, or how have yall overcome this problem


thanks

 

OK, the top of the front plate with the oil feed line, you will need an adaptor. 12mmX1.5 to "X" size AN fitting..most use -3 or -4. I used -4 for the ease of availability. about 2 feet of hose, and whatever elbows, etc you want to use. As for the return, if you want to use AN fittings there as well, then you will need an oil flange that has been tapped to whatever size you want. Cheapturbo.com sells the flanges you need, as I'm sure any other speed shop would. Here's what I used:
these numbers are from summit...
ear-9919bfgerl -4an to 12mmX1.5 adaptor
ear-300104erl hose ends
ear-303004erl 3ft -4 autoflex hose ( i did two lines)
for the turbine, i used a -4AN to 1/8npt 90 degree elbow aer-fbm2031
hope this helps!

 

Thanks

 

This is incorrect! The oil supply from the top of the front plate is 14mmx1.5!

I've done what you're doing, see this thread here:

https://www.rx7club.com/single-turbo-rx-7s-23/help-please-turbo-oil-supply-line-285715/