Alright I started a new twin turbo build and have a few questions to ask.
First off turbo oil drain location. Do I tap each side of the pan for the return bung or can I tap 2 fittings into the timing cover?
Oil fees lines, do I use the original oil cooler block off plate tap it and run a y fitting to feed both turbos or is there a different way to do so?
Turbo size, set of on3 70mm turbos too big?

I'm looking to make max possible power on a stock bottom end cam only 4.8 track only truck. I have a Trans brake installed and can use nitrous if needed to help spool the turbos.

Any advice or tips much appreciated thanks in advance

 

You can tap into the timing cover with no problem for you drain lines. On my truck my feed line goes from the oil cooler block to a y fitting then to the turbos like your thinking. I haven't had any issues doing it this way. I'm thinking 70mm turbos are to big for a 4.8.

 

just do a big single , twins are just too much clutter under the hood .

 

everything youve said will work fine for twins, but like idaho said twins are kinda a pain honestly.... i love my twins but it sure does complicate a lot

 

What is complicated?

 

Not much clutter left under the hood right now everything stripped out. No a/c or power steering, electric water pump, alternator and PCM relocated. I had started with a single s475 kit but I changed direction to twins since I have all the room anyways. The single kit will be used on another truck though but so many single turbo 4.8s I wanted something a lil different lol

 

Plenty of room, and yes just tee the feed line.

 

Thanks for the pic I like the way this looks.

 

Im in for this build....

 

I think you will go faster on a single log turbo if you got a trans brake, if you could take off with 15psi and hold 25 throw the hole pass on s480 billet wheel 1.10 you should get mid 9s. If your set on twins then get 62mm turbos with 64mm ex with .68ar