[RAIV-Z]

Originally Posted by wreckmastr

I have to agree with this. If you peddle it to save it or just plain lift off the peddle and let the throttle blade shut there is no where between the throttle body and the inter-cooler to blow off it will split a seem in the inter-cooler. (TRUST ME) once we added another blow off on the inter-cooler on the engine side we have NEVER had another problem. I have seen pressure spikes as high as 68lbs when the car as gotten loose and had to peddle it. Here are a couple pics of the blow offs we run.

Appreciate the input guys, we'll add another BOV near the throttle body.

[twov8sandat4]

Originally Posted by 67'7F6'Bird

New Photos.

More Photos online.

https://www.facebook.com/stephen.page.7568

Are you running a pump on the oil return lines for the turbos? And if so, what kind?

Thanks

[RAIV-Z]

Originally Posted by twov8sandat4

Are you running a pump on the oil return lines for the turbos? And if so, what kind?

Thanks

No oil scavenge pump on the turbo drains at this time, though not out question though. The TurboWerx Exa-pump looks like a nice piece.

[Tom Vaught]

Originally Posted by RAIV-Z

No oil scavenge pump on the turbo drains at this time, though not out question though. The TurboWerx Exa-pump looks like a nice piece.

So where are the oil drain lines in relation to the oil level in the pan?

Tom V.

[JSPONT]

Originally Posted by RAIV-Z

No oil scavenge pump on the turbo drains at this time, though not out question though. The TurboWerx Exa-pump looks like a nice piece.

When I had twin low mount turbo's I ran the turbo lines to the top of a small catch can. A fitting on each side, then I had a lower line going to the pump. It helped with cavitation, never had an issue after that.

[twov8sandat4]

Originally Posted by RAIV-Z

No oil scavenge pump on the turbo drains at this time, though not out question though. The TurboWerx Exa-pump looks like a nice piece.

https://imgur.com/UlGkt8h

You can see the blue return line on my setup. It has a very slight pitch to it. I got to add a pump to it, because at idle and low speeds it was not draining fast enough, and was smoking like a chimney Hate to see that happening on your setup.

[Tom Vaught]

Looks like you have a 90 degree fitting right under the turbo, that is not helping your "draining fast enough" at all.
Oil and AIR BUBBLES come out of the bottom of the turbo.

Large Bubbles and 90 degree turns do not work well, as at idle and low speed you really don't have that much oil flow to the turbo CHRA, (Center Housing Rotating Assy).
So the oil pushes past the simple seal on the exhaust side and gets burned.
You have an OK downward slope to the line but you need a smooth curved pipe drain coming right off the turbo.
A turbo like yours should have threads and also the bolt on flange. Weld a smooth 5/8" id tube bend on a piece of flat stock with a 5/8" id hole in it and bolt that on to the turbo. Get rid of the threaded crap.
Tom V.

[twov8sandat4]

Originally Posted by Tom Vaught

Looks like you have a 90 degree fitting right under the turbo, that is not helping your "draining fast enough" at all.
Oil and AIR BUBBLES come out of the bottom of the turbo.

Large Bubbles and 90 degree turns do not work well, as at idle and low speed you really don't have that much oil flow to the turbo CHRA, (Center Housing Rotating Assy).
So the oil pushes past the simple seal on the exhaust side and gets burned.
You have an OK downward slope to the line but you need a smooth curved pipe drain coming right off the turbo.
A turbo like yours should have threads and also the bolt on flange. Weld a smooth 5/8" id tube bend on a piece of flat stock with a 5/8" id hole in it and bolt that on to the turbo. Get rid of the threaded crap.
Tom V.

Yes, agreed. Right now there is a "full flow" (Earl's description) -10, 90 degree fitting right off the turbo. We had to notch the crossmember just to fit that there, otherwise it would have been the "regular" stubby 90, which is worse. In order to make it as you describe, I have to have someone fabricate a tubular crossmember there to give me the room, or go the pump route.

Either way, I thought the slope on mine was steeper than Ed's setup, and I was not happy with mine, that is why I brought it up

[Tom Vaught]

Turbo Drains are far more important than many assume. Constant down hill slope, LARGE ID of the tube off the turbo, no screw in fittings as the fitting threads take away from the inside diameter tube size.

Tom V.

[RAIV-Z]

Final assembly/wiring is in progress. Radiators are 7-10 days out. Mandrels for cam cable driven fuel pump and crank driven alternator about another week.

[top452]

Looking great Ed.

[67'7F6'Bird]

Ed's Car is Looking Great!!

[moparcolt]

How long till it hits the Dyno?

[RAIV-Z]

Originally Posted by moparcolt

How long till it hits the Dyno?

No chassis dyno eta at this point.

[RAIV-Z]

Originally Posted by Tom Vaught

Looks like you have a 90 degree fitting right under the turbo, that is not helping your "draining fast enough" at all.
Oil and AIR BUBBLES come out of the bottom of the turbo.

Large Bubbles and 90 degree turns do not work well, as at idle and low speed you really don't have that much oil flow to the turbo CHRA, (Center Housing Rotating Assy).
So the oil pushes past the simple seal on the exhaust side and gets burned.
You have an OK downward slope to the line but you need a smooth curved pipe drain coming right off the turbo.
A turbo like yours should have threads and also the bolt on flange. Weld a smooth 5/8" id tube bend on a piece of flat stock with a 5/8" id hole in it and bolt that on to the turbo. Get rid of the threaded crap.
Tom V.

Swapped out the 90 degree fittings on mine over to 60's. If we run into oil draining issues we'll try the 5/8 tube deal. If that doesn't work I'll add a tank and a pump.

[RAIV-Z]

Originally Posted by Tom Vaught

So where are the oil drain lines in relation to the oil level in the pan?

Tom V.

The turbo oil drains are ~2 inches above the full oil level.

[RAIV-Z]

Originally Posted by grandville455

X2!

Radiator's arrived.

[chiefbigb]

I can't even afford to look at that stuff lol. Very nice work.

[67'7F6'Bird]

Ed Page's 1969 Firebird "RAVEN" is almost done.

[wreckmastr]

Originally Posted by 67'7F6'Bird

Ed Page's 1969 Firebird "RAVEN" is almost done.

So the clear view oil filter will be covered by the charge tube going into the firewall? Defeats the purpose no?