Oil return - Check




Compressor house rotated - Check




Down pipe - Check

 

Is that o2 sensor going to survive right there?

 

I dont know. Its about half the recommended distance of 24 inches. But the recommendation is based on application. I imagine with my setup I'm not producing or surpassing the most extreme tested operating conditions of this sensor. (Bosch came with innovate LC-2)

 

It should work fine for a while at least. Especially if it is a street car. My friend's 91 came with the WBO2 just after the turbo outlet, less than 6", and it has been fine for 6k miles or so. It is moving down to the end of the down pipe this week with any luck though.

 

Most instructions say 24" from the head if it's naturally aspirated. 24" from the turbine if it's turbocharged.

 

First start results. AN-fitting to hose assembly fail.

But it ran great.

 

Those look like mud tires lol

 

That fitting sucks nards, Has no barbs. Also need Oetiker clamps in your life. They are awesome.

 

This is exactly why I only use high-end fittings assembled at my local hydraulic shop. I don't want oil going on the ground from my being bad at making lines.

 

 

I've heard this as well, and never understood it.

It's not as though the turbine is generating heat. Yes, the exhaust gas does lose considerable thermal energy as it expands across the turbine, but that's an instantaneous transition.

In a rear-mount application with a pre-turbo muffler, does the sensor need to be located in free space a foot past the end of the tailpipe?

 

You're thinking about it like an engineer would. They thought about it like a product manager would.

"Turbo cars typically produce higher EGTs, so the sensor needs to be further away. What's an easy reference for our customers to measure from?"

Ideally, they publish the max EGT allowable, and you plumb EGT fittings into your exhaust system every 3" until you reach a point where the temps are acceptable to the sensor, but that's not terribly convenient for the end-user who's installing it in their gravel driveway with a hand-drill and a flux core welder.

 

"We'll design it so that the core of the sensor can be replaced in 2 minutes by popping out a single latch, sell the complete system for $59, and tout the benefits of being able to ensure accuracy and freshness by replacing the sensor on a monthly basis.

Because the sensor burns out after a month.

And sells for $59."

 

Could be snows.

 

It is, and it f* snowed here today.

 

In all big engineering firms with success those two are the same. You're thinking about it as a scientist. Its not a research instrument.

 

Compressor house rotated - Check



Did you only clock the compressor housing or did you also clock the hotside housing too?

Was it easier to clock it when the turbo was bolted up to the block?

 

I only rotated the compressor housing. The oil drain faced down in its original configuration.

Original turbo alignment


It is easiest to do with the turbo off. I rotated it while I did the rebuild of its internals. It is fixed with a C-snapring that is a bitch to get to without the right / big enough pliers. And it is a locking pin on the compressor house with a pin-hole on the center housing, I drilled a new hole for the new rotated pin position, but I might have gotten away with just fileing away the pin.

 

Hi All

1. - Finally cleaned the car after it spent most of winter collecting dust in the garage during winter.

2. - Air filter installed at last. I've been testing the car without a filter driving around hoping nothing got sucked in to the turbo. I wonder how many degrees of intake temp i can save by putting it out to the side?

3. - Electronic boost control solenoid. Wastegate on this turbo is 1 psi so the EBC is worth its weight in gold. Its mounted by the windshield wiper fluid reservoir, with probably the longest vacuum line possible. How much response time is lost from over there?

4. - Engine bay, the flash photography really brings to attention the amount of dirt present in there.

5. - Sonic the Hedgehog - Hes fast, but faster than a turbo miata?

 

Thats a weird cat in the last pic