How to turbo your NA for $2000.

[NitroDann]

Blurriest photo ever as it turns out.

Dont worry theres a nice weld under there



This is the Idle Air Control port.

Dann

[NitroDann]

Heres where we are up to, need an oil feed line, air filter, finish the pulse welds, drill the sump, bolt it together and clip the megasquirt in and tune

This update is very pic heavy and helps explain SpeedFlow type fittings and their assembly.

This flange, for some reason out of like 10 I purchased didnt come tapped, so a trip to the bolt shop and 20 bucks later its tapped.


Use a square and eyeball the tap is vertical.


So here is the oil feed line, on a garrett this is a gas fitting, Ill feed this with a hardline from the head, any brake and clutch shop can make you this hardline for 30 bucks.


This is the oil return, much larger.


This particular turbo has an incredibly unusual fitting, Totally unavailable from SpeedFlow, 13 bucks later after a trip to an industrial hose shop I got a 22mmx1.5mm internal flare to -10JIC fitting, now back to the hotrod shop for a Speedflow adaptor and hosetail.


So with liquid threadtape, it gets screwed in. Use a spanner for final assembly.


Then the JIC to -10 adaptor.


Then the -10 hose tail.


The hose gets pushed down hard like this to fit it on the barb. These barbs are high pressure and dont require a clamp, but I'm using one anyway.


Cut a clean straight end from the hose, in this case we are using -10 heat resistant fire retardant efi capable hose.


Then into boiling water it goes to soften it.


Some lubricant, use soap because it will dry up, unlike oil.


This collar must be on this direction before fitting the hose, this makes it look nice and tidy, THIS IS YOUR LAST CHANCE.


Push down HARD. In ONE motion. There are no second chances these barbs do not let go.


And a hose clamp because insurance is always recommended.


Not long now!

Dann

[Muzdaman]

Love the hot water and soap trick.

[ivan]

Wow...looking nice! Out of the TD04 (Apu...i'm thinking haha) and T28 what would be a better turbo for keeping the car reliable? As I mentioned before I am not at all chasing big power but fun and drivable on track. Also, at what point do injectors and fuel pump become necessary? Or are they also a good safeguard even at lower power?

[Apu]

Ivan,

You'll get more from a T28 (I've also got a used T25 and brand new Deatschwerks injectors!) than the TD04.

I went through this whole thought process but have decided to stay NA for a while and just gut the car, but am know thinking of turboing the Integra!

Dann will be able to better advise on what will work better for you.

Bryan

[ivan]

Thanks Bryan. I'll keep watching this thread and if I go this route I'll chat to Dann about the right turbo for me. I was thinking T28 might even be too big if you don;t want any lag?

[NitroDann]

Cant forget an air filter.

Going with the quickest cheapest easiest filter setup available.

The unifilter, only recommended for low power setups however.

Tried one on a 300whp car and it just sucked itself closed, never an issue on a setup like this, and 95% of bolt on blower setups however.



This order is directly from Unifilter in Gosford including shipping.

There you have it, your entire intake for $34.50

Dann

[corners]

Is this the filter?

[NitroDann]

It was but Ive changed to a caged filter rather than the spring type, and can no longer edit the post.

Dann

[NitroDann]

Alright, here we go, the most fun part (not even slightly, and they dont get any better).

Drilling the sump and tapping it. And the first few are of my porting the manifold.

Here is the unported manifold. Horrible photo sorry.


Half ported.


Inlet ports getting done next.


Crossover pipe welded.









Downpipe welded. It has a double braid flex pipe for reliability.


Drill a pilot hole for the oil return. This location is NOT the tradition (ie miataturbo wiki) location, the miataturbo location is suggested because its hard to hit the oil pickup pipe and puncture it from that location, Here im just using experience and care to ensure it doesnt happen, we will look and test for it later.


Hole has been drilled with a bit usually used to countersink screw heads, its called a countersinking bit. It eats the alloy like its nothing. You can see inside the hole the oil pickup running horizontally, its close here but Im being SUPER careful with depth.


This is a 3/8 BSP tap and hand tapping piece, Ill be tapping with a ratchet not the hand tap (the 2 black bits, make a 'T').


ALWAYS check the threads are the same by holding them in each other, this trick works for all bolts, you will know if its not right the threads simply wont seat.


Lets tap. Again being very careful to mark and check the depth.


Awesome, we have return.


After flushing the sump with degreaser this came out, its very important to flush the sump after tapping.


So after I had done this I unclipped the injectors and ignition harness and hooked up a battery charger. I crank it and check that it makes oil pressure just off the key. It gets to 2 on the guage, this confirms the visual inspection that the oil pickup is not damaged. if you cut a hole in it the oil pump will suck air and you will not have pressure, this is why it must be tested with the starter motor.

Now Ill clean up the flange faces, add gasket maker, and bolt it together, with sealant on all of the threads.

I must add an oil feed, and clip in the megasquirt, and put my wideband on for a tune, then we go for a slow safe tune, making sure the mixture is very rich and taking it very easy on ignition timing, and see how the car goes.

Then its off to its owner over the weekend and he can enjoy it for a little while while he waits in line for a quick dyno touch up.

Dann

[kris]

Awesome.

[Old Dude]

I like the new signature Dann, it like your work looks the goods

Cheers
Dale

[jtd]

Just joined the mx4 crew.

Couldn't resist reading this from page 1.

Thanks for dedicating the time to taking photos and logging all this work!

Curiously, the process would be the more of less the same for a '99 NB8 yes?

[Aussie Stig]

Have to ask how you flush the sump with it still on the car?

Guessing you squirt a shedload down the drilled hole and it all comes out the drain hole. I am hoping none of it gets stuck inside.
Nice tip with the tapping, all is looking good.

[DanZig]

Great work Dann, appreciate the time and effort put in which will hopefully lead to more people getting their hands dirty and not ending in tears. *looks at spare t25 in shed*

Keep it up!