I was wondering how to block off the coolant lines that went to the stock turbos.
Also I was wondering how to rout the oil lines to my new t04 and which one of the oil lines need to be blocked off.
thanks in advance and please post any pics possible to help
--Arron

 

Just loop the top and bottom on the back side of the water pump housing. See the line in the attached pic, which is partially heat wrapped. I believe you can just plug the ends and not loop, but I'd recommend looping.

 

I happened to just convert to water cool, and had taken that picture just two weeks ago to ask someone the question "which lines do I tap" For what it's worth, here's my new plumb job:

 

thanks for the pic and the info.

what about the oil lines?

 

I found this pic when I was doing research on how to plumb the water coolant. You can clearly see the supply line, and you can approximate where the drain heads. I can get a better pic of my drain line late tonight, but hopefully someone might chime in who happens to have a pic handy Also, I don't know jack about blocking off any oil lines!

 

thank you so much! those pics helped me figure some stuff out and hopfully my car will be running very soon.

 

What kind of exhaust manifold are you using?

 

I believe it was from a Greddy T-88 kit.

 

does anyone happen to know the fitting size of the oil feed line?

 

^ bump.

the stock oil feed line, the one with the nut at the end of it.

 

read this thread: https://www.rx7club.com/showthread.p...+oil+feed+line

consensus is -4 is largest typically used...but note of comments on restrictors. You could buy feed line here,

http://www.atpturbo.com/Merchant2/me...egory_Code=OIL

but the shortest they have is 3', which is way more than you need. Maybe check local performance shops.

 

the stock turbos have two oil drains, block off the rear one (closest to firewall) and drain your single turbo to the drain in the front of the engine. Will conveniently be almost directly below your turbo. You only need a couple inches of line, go big here, like -10 or -12. The oil feed comes off the front drivers side of the engine (banjo bolt). The best way to make an oil feed would be to use a 90 metric thread to AN adapter and do away with the banjo. 14mm x 1.5 is the thread. I was told not to use any larger than -4 for the feed unless you want to use a restrictor.

no pics though, sorry.

AN fittings and lines can be found on ebay pretty cheap, you can find oil feed lines that already have the proper metric ends sometimes too, so no need to convert to -an. Check around.

 

so you used what looks liek -6 line for turbo feed and drain? No problems with this setup? Leaving the stock banjo assembly on the feed worked well enough as a restrictor?

 

what if i wanted to do somthing like whats in the picture? Use AN line with an AN fitting going into the stock oil feed line. what size AN line is that and what fitting is that connecting the line to the stock feed line?

 

That's my turbo in post #3, and someone elses in post #5. I really don't know what size line it is, and I don't know for sure what a "bango assembly" is. I've never had a problem with the turbo that I've attributed to the feed line. But I did have relatively new turbo last year start smoking on me and thought the problem was with the seals, but maybe the problem was really too much oil. I need to learn more about subject, so I will start doing some research.

 

If I was you, I'd head down to the hardware store and grab an assortment of brass fittings and see what fits. Then I'd head down to the performance shop and tell them what fitting and length you need in a -4 oil feed line. And your going to need one of these in 1/8" or 3/8" to connect the line to the turbo.
http://www.atpturbo.com/Merchant2/me...egory_Code=OIL

 

^^^ on second thought... while I like to try to help, I really can't say I know for certain what you need. If you have a GT30/35/40, then this is the inlet adapter:http://www.atpturbo.com/Merchant2/me...egory_Code=OIL

All I know is I had a hell of a time finding a replacement inlet adapter for mine after I had crossed the threads. In fact, I couldn't find one, and was lucky to be able to re-thread it enough to get it to work. My inlet adapter had pipe thread on the bottom half going into the turbo, and straight thread on top with a flare to receive the feed line. Good luck!

 

thanks for the info and links they have help alot!

I do have one more question though. there is another line simalar to the oil feed line exept it dosnt have a nut at the end of it. Its located next to the feed line. Ill try to get a picture up so you can see what im talking about better.

 

heres a pic of the line im talking about. you will have to excuse my paint program skills.

 

that's a vac line, follow the hard line it comes out on the other side of the engine

I believe it connects the oil filler neck (or PCV) to one of the nipples on the black plastic elbow on the intake side of the front turbo. I did away with this with no problem.

 

so a vacume cap would work fine?

 

check the other end, chances are it's not connected to anything. If it's connected to the oil filler neck then just leave it open to atmosphere so it can vent crankcase pressure or run it to a catch can

 

here is a pic of my setup so far.

the duct tape on the hot side is just there to help me clock it where i want it.

the oil feed line seems a bit close to the turbo, i have a feeling its not going to be easy to connect my line.

Oh ya what are you guys using to keep your vacume caps on so they dont shoot off under boost? I want to still be able to remove them in the future if needed without having to scrape glue off.

edit: the turbo, im not really sure what size it is, its a .84 divided on the turbine side and a .50 on the compressor side. it is a garret. I belive its off of a ford 7.3 but not for sure.

 

You don't want to use plain, un-reinforced silicone hose for engine coolant. Use a reinforced hose designed for coolant.

 

^^ Thanks for the tip! I will change it!!