Thread: Hori Turbo Throw Together

The turbo seems to max out at 22 PSI. Wound the fuel and the boost tee out but it wouldn't give any more.

Then I blew a hose off, holy crap that gave me a fright!

So I think I'll wind it back to 20 pounds and tune the fuel from there.

So I've been reading about Nissan turbos and supposedly they have ceramic turbines that can't handle more then 14psi.

Should I be worried or is this another petrol issue...


Cheers

Aaaand I'm back!

I was never really happy with this turbo. It did spool quick but ran out fast and seemed to be a huge restriction. EGTs were always a concern and I could never get it tuned right.

Enter, the HX30W...



Purchased from eBay for rather cheap, I figured what the hell, I'll have a crack. I won't be intercooling again, the added cost is outside of this current budget (budget of 1k for installation),

Now to make this work...

1. Oil feed, will my existing -4an be enough or will I need to go to a -6an? I am having trouble answering this...

2. Oil drain, I'll be upsizing this to 19mm or 3/4" or -12an from my previous -10.

I will be sourcing a drain flange from KLR to replace my modified one. Then a aluminium 19mm hose Barb flange for the turbo.

3. Exhaust. The v band on the Holset is a odd ball 2.75" size, so I have ordered a new flange from eBay with a 3" v-band.



Then I need to adapt it to the existing 3" dump pipe. I purchased an additional V-Band for this (I wish I had known about V-Band earlier!)



4. Intake: this should be easy, remove previous reducer and use a straight 3" silicone hose.



5. Outlet: Again another easy one. The turbo came with a v band elbow to 2.5". So, remove previous reducer and hopefully it should pipe up.



I'm waiting for a few things in the post, so will hopefully get this upgrade started in the next couple of weeks.

Have I missed anything? Let me know!

It's red. I'm guessing it goes fast

Originally Posted by Toxic_Avenger

It's red. I'm guessing it goes fast

I hope so!

My boss just got a new turbo and tune for his RB25DET Patrol, it's so cute haha. It will be interesting to compare, I think he is around 220HP at the wheels.

I also found these in the Holset manual confirming drain size. Anyone good with math and can figure out the size of the oil supply?

11. Oil return pipes are permitted to decline at an overall angle of not less than 30 degrees below horizontal. All turbocharger applications require a pipe of internal diameter greater than 19 mm which has integrated connectors. To ensure oil drains into the engine under all operating conditions, the return connection into the engine sump must not be submerged and the outlet flange of the turbocharger must be 50 mm above the maximum oil level of the engine sump pan.

15. Recommended oil flows for the turbochargers are 2 litre/min at idle and 3 litre/min above maximum torque speed.

Also interesting to note:

16. Do not use liquid gasket substances or thread sealant as any excess can enter the turbocharger oil system to obstruct flow.

Don't expect 220hp at the wheels

Originally Posted by Vern

Don't expect 220hp at the wheels

What are the pumps good for? 250hp at the crank?