Quick question on fuel/trans line

[DirtyDeeds]

hey guys quick question, I'm installing a trans and fuel cooler as part as my M90 build on my 87 MJ and i need to know a few things.

 

1. for my fuel cooler,  is the fuel line going into the back of my fuel rail closest to the fire wall  the inlet line?

      as i understand my fuel system theory, the fuel pressure regulator almost always on the return side of the rail in a return system. i need to cut this line not only to add my fuel cooler before the rail but to         add a T in it to run a line to my 7th injector rail.

 

2. for my trans cooler. which line is the return line coming out of the trans cooler in the radiator to the transmission?  the upper line or the lower one?

[HOrnbrod]

[DirtyDeeds]

ok cool thanks, what about the fuel line?

[HOrnbrod]

You could use a Schrader "T" fitting and plumb the seventh injector from the fuel rail valve. 

[DirtyDeeds]

thats not a bad idea, but still leaves me out on the fuel cooler lol

[HOrnbrod]

Probably won't need it with the M90.

[DirtyDeeds]

although I probably don't need it I stil want to run one, my engine has some miles on it and I want to give it ever advantage to not blow up before the rebuild lol plus it should make a few hp, just like how ill be running a intercooler too. Probably don't need it but it'll be nice to have to keep down the risk of pre detonation with the fuel control and timing controls and running 93oct, I should safely be able to push it hard and be confident it won't blow up lol.

But I'm also planning ahead because once I do my stroker rebuild, the m90 won't be enough so ill upgrade ro a m112 or m122. And I've even played with the idea of being really crazy and duel charging it adding a turbo too