S15 turbo on S13 SR

[lonelydrifter]

Hey guys I tried a quick search but didn't find a clear answer. What modifications need to be done to use this turbo? Will oil lines from stock turbo work? Where should I route water lines? Let me know.

[g6civcx]

What modifications need to be done to use this turbo?

Modifications to the intake piping will be needed. Many vendors make adaptor plates for this popular swap. The turbo elbow may need to be trimmed depending on design.

Will oil lines from stock turbo work?

What is "stock turbo"?

Where should I route water lines?

Route it from the block into the turbo, and from the turbo into the upper radiator hose water outlet.

I highly recommend http://takamotorsports.com/ for braided oil and turbo lines regardless of what turbo you use. Contact Harp for assistance.

[usdm180sx]

Route it from the block into the turbo, and from the turbo into the upper radiator hose water outlet.

Make sure you have the s14 upper radiator hose water outlet because the s13 upper radiator hose water outlet won't work.

[nrg]

get these adaptors: http://phase2motorsports.stores.yahoo.net/p2ms15tupiad.html
then get the s14 water neck, and taka s14 braided lines.
everything else should boltup.

[WILDACEX187]

when putting on the t28 its best to get steel braided lines because the t25 lines arent bent the right way and bending them is a pain. also if u have to stock hotpipe u can adjust it since it has multiple pieces. if u have a one piece hot pipe u will need to cut and reweld if u dont use the adapter posted. its not hard to get to the waterline in the back of the motor if u have the steel braided lines. i just did this 2 weeks ago so its still kinda fresh. anything else u wanna know?

[g6civcx]

Make sure you have the s14 upper radiator hose water outlet because the s13 upper radiator hose water outlet won't work.

It's preference. I have already addressed this in a long thread. You have to search to find it.

You can tap an S13 water outlet if you want, or run it to the stock return line in the firewall area.

The best way is running it to the water outlet though.

[usdm180sx]

It's preference. I have already addressed this in a long thread. You have to search to find it.

You can tap an S13 water outlet if you want, or run it to the stock return line in the firewall area.

The best way is running it to the water outlet though.


True it's preference. But if he's going to run the s13 water neck I think it's important he knows that it needs to be tapped and you didn't mention it in your first post. No big deal as long as he gets it done correctly right?

It would probably be cheaper to tap out the s13 water neck as opposed to buying an s14 one but again it's all preference.

And like NRG posted get the adapters from Phase2.

[Flybert]

There are a ton of ways to do it. Best way in my opinion is first to get the s14 water neck and bend the stock water line straight from the block to water outlet and ditch water cooling altogether. We're prepping my friends motor right now and we used his old CA water line since it's shorter but S13 SR water line works fine too, just a little harder. Here's a pic I took a few days ago. S13 oil lines are easy to bend and make work. Just make sure you line up those banjos really nicely before you thread the bolt in. You do not want to strip the block.

http://i33.photobucket.com/albums/d56/pandapandared/Img_0322.jpg

[g6civcx]

Best way in my opinion is first to get the s14 water neck and bend the stock water line straight from the block to water outlet and ditch water cooling altogether.

That's the first time I've seen it done that way, but as long as it works then it's fine.

I prefer to plug the holes with a bolt and plug. It eliminates that little line which can trap air and makes it harder to bleed.

As per Russ/R240NA, you don't need water cooling on the T25. The T28 though is something different, and I don't know if you should or shouldn't eliminate water cooling.

[WILDACEX187]

dont u guys think its much easier to just get the steel braided lines than using and bending the stock lines? i found it super hard that way and had to wait a week for the lines to come in before i could finish.

[lonelydrifter]

Thanks for the help guys. This is what the turbo looks like and just to let you know I am running Koyo Rad with forge motor sports hoses. I think the turbo outlet had been already been re-welded to fit. Does everything look in order?

http://i25.photobucket.com/albums/c73/lonelydrifters13/042307_17091.jpg

http://i25.photobucket.com/albums/c73/lonelydrifters13/042307_17081.jpg

http://i25.photobucket.com/albums/c73/lonelydrifters13/042307_17092.jpg

[azndoc]

The best way to do it would be to use steel braided lines, S14 waterneck with the adapter on it like flybert said ( i did it like that it was easier). Also you have to get the S15 oil oulet tube and hose, I think like $75 total for both( you can order it from superior nissan or justin at westco) you need those two or you can modify original which is a bitch. The compressor inlet and outlet pipes have to be changed for s15 or you can cut and weld the original t25 turbo ones to fit therefor not having to change your intake pipe or original stock hotpipe. Just get the steel braided lines and make your life easier. Good luck.

[KwKouki]

+4522434524324324 for s14 waterneck. It was a pita to get the rear water line to hook.

[DrIvEsldEwAyS]

the rear water line is a pain in the ass, the t25 hotpipe will not work with the t28, you will need to cut it and get a 45 degree cupler

[Wahl 136]

The best way to do it would be to use steel braided lines, S14 waterneck with the adapter on it like flybert said ( i did it like that it was easier). Also you have to get the S15 oil oulet tube and hose, I think like $75 total for both( you can order it from superior nissan or justin at westco) you need those two or you can modify original which is a bitch. The compressor inlet and outlet pipes have to be changed for s15 or you can cut and weld the original t25 turbo ones to fit therefor not having to change your intake pipe or original stock hotpipe. Just get the steel braided lines and make your life easier. Good luck.


This is what I had to do when I modified mine. It's the easiest way to go!

[Sileighty_85]

You'll also need an oil Restrictor fitting for the S13 SR when using the BB Turbo or you'll blow the bearings out.

[WILDACEX187]

^^this is wrong. t28's have a restrictor already built into the turbo. pls dont spread misinformation

[Sileighty_85]

Well Thats what a Tuner shop told me when I was in Okinawa
They said you would need this little adapter peice that bolts to the Block Turbo oil feed.
But Whatever I guess they lied

I dont normally deal with Stock Equiptment or anything smaller than a TD06 20G
Soooo..Sorry :bow:

[WILDACEX187]

nope, i think thats the case for other turbos. maybe they thought u meant like a bigger turbo than a t28 since they dont consider it an upgrade

[Sileighty_85]

nope, i think thats the case for other turbos. maybe they thought u meant like a bigger turbo than a t28 since they dont consider it an upgrade

Why would you want less oil to go to a bigger turbo? The Small T-28 would need less oil cuz its a BB.

Nah they new what it was for cuz I picked up a whole T28 turbo setup for $300 to use as a Temp Turbo until my Engine broke in and I know everythings running right. (Turbo,dump pipe, HKS Actuator, Tubular manifold Steel braided oil line,oil return pipe)

I was tellin one of my buddies that worked there at the shop and he asked me what block it was goin on I told him the SR Red top, and he told me about the adapter and I asked 2 more of the guys working there and they said the same thing.

But I guess if yall dont have problems with blowin T28's over here then nevermind.

[MegasquirtCA]

^^this is wrong. t28's have a restrictor already built into the turbo. pls dont spread misinformation

^^^^ This is wrong they were never built in on Nissan turbos.

Please dont spread misinformation.


This is a BRAND NEW S15 T28 Turbo straight from Nissan Japan. As you can clearly see their is no built in restrictor. However Garrett BB turbos do come with built in restrictors but not on OEM Nissan turbos.

http://img186.imageshack.us/img186/9152/DSCF0721.jpg

[WILDACEX187]

umm these turbos are made by garrett and are also BB. why would they say "fuck oem turbos lets not put restrictors so they blow and come back for more"?

[MegasquirtCA]

umm these turbos are made by garrett and are also BB. why would they say "fuck oem turbos lets not put restrictors so they blow and come back for more"?

Because they usually have them on the blocks and combination with the small oil lines thats why.

Why are you even bothering to fight it, I already showed you a picture that they dont come with it. Now apologize to Sileighty_85

[lonelydrifter]

Well it doesn't really matter as long as we make it clear whether you need a restrictor or not. Seeing as the majority hasn't told me to use it I come to believe that I don't need it for whatever reason.

[koukimonster139]

OP, talk to Team Rootbeer he just put a s15 on his red top

[cotbu]

Well it doesn't really matter as long as we make it clear whether you need a restrictor or not. Seeing as the majority hasn't told me to use it I come to believe that I don't need it for whatever reason.

That is the whole point of misinformation.... you still have the wrong info!!!
yes you need a restictor for the BB turbos period. Be it, block ,line or on the turbo.

If you choose to install it or not that's your decision!
But the fact doesn't change!

[Yoshi]

You'll also need an oil Restrictor fitting for the S13 SR when using the BB Turbo or you'll blow the bearings out.

OK..... so the consensus is you DO need the restrictor ya?

I'm replacing my T25 with a S14 T28bb, and I would need the restrictor as well... now where might I get one? Maybe I just didn't notice, but I swear I've not seen these around the major 240 part retailers; typically they put all the parts needed for these sorts of upgrades in one spot.... however Phase2 seems to have various lines that require or provide for "stock" restrictors? Dammit I'm confused, 2 many options.
I think my T28bb, being from a S14 means the lines that came with it (S14) won't work on my S13?

[420sx]

wait wait why the fuck would you need to get s14 water elbow if you are using taka lines (or equivalent) and the adapters for your piping??? everything should bolt right up (besides the oil return duh)

[usdm180sx]

wait wait why the fuck would you need to get s14 water elbow if you are using taka lines (or equivalent) and the adapters for your piping??? everything should bolt right up (besides the oil return duh)

It's easier to run the taka water line to the water neck. The s14 is already tapped for the same size fitting. The s13 is not but can be retapped to fit.

[Sileighty_85]

Here are pic of the oil resrtictor I was told I had you use if i was running an T28bb on a Red Top
I bought in Okinawa I think I paid like 15 bucks I dont remember.
http://i73.photobucket.com/albums/i235/Neil_85/VFSH1235.jpg

http://i73.photobucket.com/albums/i235/Neil_85/VFSH1236.jpg

[azndoc]

wait wait why the fuck would you need to get s14 water elbow if you are using taka lines (or equivalent) and the adapters for your piping??? everything should bolt right up (besides the oil return duh)


It makes life easier to just run the S14 waterneck rather than trying to squeeze your fingers to the back of the motor to try and fit on the ss turbo lines. Or you can really make life harder/easier and just pull your engine. Either way I'm lazy so I did the S14 waterneck. GL OP