G.I.Ceo's Turbo Build!

[G.I.Ceo]

Originally Posted by young gun

I didn't read much of anything into this but Tejohnson was having issues and he believed the HV oil pump was sucking the pan dry...

Worries about this or did you read something else where? Or was Tejohnson's issue something else?

Never ready anything about this. Running boost you have to use a HV pump or you have the chance of being oil starved. Was he running boost or just a standard motor? Will make a big difference.

[Nick-G]

Originally Posted by G.I.Ceo

Never ready anything about this. Running boost you have to use a HV pump or you have the chance of being oil starved. Was he running boost or just a standard motor? Will make a big difference.

You should be using a stock oil pump a high volume pump will suck your oil pan dry. The factory pump works fine and it's what all the boosted guys on here are using including myself.

[Slinky]

Originally Posted by Nick-G

You should be using a stock oil pump a high volume pump will suck your oil pan dry. The factory pump works fine and it's what all the boosted guys on here are using including myself.

I also am using a stock oil pump with my supercharger set up..

[young gun]

Originally Posted by G.I.Ceo

Never ready anything about this. Running boost you have to use a HV pump or you have the chance of being oil starved. Was he running boost or just a standard motor? Will make a big difference.

Originally Posted by Nick-G

You should be using a stock oil pump a high volume pump will suck your oil pan dry. The factory pump works fine and it's what all the boosted guys on here are using including myself.

Your welcome Randy

[G.I.Ceo]

I'm really going to be pissed if I have to take this all out again.

[AaronGTR]

Originally Posted by G.I.Ceo

Well just some updates. The new HV oil pump and oil pan are in. I will tell you it was a major PITA with the car being on stands and the motor in. I have started putting things back together so hopefully here soon I will be getting ready to run tubing for the intercooler and make the oil and feed lines. Not much longer and this will be done. It hard at times to stay focused but I do see the end. I believe when this is done with be in the top 3 of turboed GA's with Milzy and Nick. You may think I'm crazy but I believe I have planned well. The only thing holding me back in this POS 4T45E tranny.

yeah, you should have done more research first. You need to pull that pump out right now. I asked about it before over on 69degreev6.com and several people said that it had been tried and ended up causing engine failures. It's designed for using in racing engines with looser tolerances in the bearings. They use a thicker oil film so they can run at higher rpm for longer durations will less power loss. The engine has to be machined though to allow that extra oil flow to get out faster and return to the pan faster. Otherwise you'll just pump your head galley full of oil and suck the pan dry.

There is no need to run a high volume pump just because you are running boost. The turbo doesn't require that much oil, and in fact too much oil pressure can damage the seals on the turbo shaft and you'll end up with oil in your charge pipes and exhaust. They actually make restrictors for turbo oil feed lines to drop the pressure if it's too high. Your stock pump can supply plenty of oil for that as long as it's in good shape.

[HOYS]

Originally Posted by AaronGTR

There is no need to run a high volume pump just because you are running boost. The turbo doesn't require that much oil, and in fact too much oil pressure can damage the seals on the turbo shaft and you'll end up with oil in your charge pipes and exhaust. They actually make restrictors for turbo oil feed lines to drop the pressure if it's too high. Your stock pump can supply plenty of oil for that as long as it's in good shape.

^This. I recently saw a stock 3800 (just a cam and valve springs on the longblock) turbo blow the oil seals in the turbo because there was no restrictor to the turbo.

[G.I.Ceo]

So I returned my pump back to a brand new stock style Melling. I don't know what I was thinking by trying to use a HV pump. At least it is a crisis adverted before this thing was ever fired up. I don't know why it didn't click that to use the turbo I have I will have to use a restrictor to keep oil pressure back but was originally using a HV pump? Can we say duh? Well all is good for now and at least I can sleep tonight knowing it is better now then it was. Thanks guys for the info and making me do some more research like I should have done before.

[AaronGTR]

Yeah, you should be fine with that pump. Not sure what size restrictor you may or may not need for the turbo. Probably depends on what the turbo calls for, what size line you run to it, and what your engine oil pressure is.

Just for reference, I'm also using a brand new Melling oem replacement pump. I see around 50psi at idle and 70-75 psi under acceleration (probably where the pressure by-pass opens up) when the oil is cold. After the engine warms up and the oil temp gets over 200, I see idle pressure around 25psi and about 50psi under load.

[Slinky]

Originally Posted by AaronGTR

Yeah, you should be fine with that pump. Not sure what size restrictor you may or may not need for the turbo. Probably depends on what the turbo calls for, what size line you run to it, and what your engine oil pressure is.

Just for reference, I'm also using a brand new Melling oem replacement pump. I see around 50psi at idle and 70-75 psi under acceleration (probably where the pressure by-pass opens up) when the oil is cold. After the engine warms up and the oil temp gets over 200, I see idle pressure around 25psi and about 50psi under load.

Whats your avg. oil temp? Max?

[G.I.Ceo]

Originally Posted by AaronGTR

Yeah, you should be fine with that pump. Not sure what size restrictor you may or may not need for the turbo. Probably depends on what the turbo calls for, what size line you run to it, and what your engine oil pressure is.

Just for reference, I'm also using a brand new Melling oem replacement pump. I see around 50psi at idle and 70-75 psi under acceleration (probably where the pressure by-pass opens up) when the oil is cold. After the engine warms up and the oil temp gets over 200, I see idle pressure around 25psi and about 50psi under load.

I am not sure if I am going to use a restrictor or not yet. I have one ready that screws into the feed and then you just screw in what size restrictor you want into that. I was thinking if I need one I will probably use a .060. I am using a 360 thrust journal bearing Garrett GT35 turbo. I will start off without one first and see if the turbo start to ooze oil.

For this setup I am using a 4an feed and 10an return.

[AaronGTR]

Originally Posted by Slinky

Whats your avg. oil temp? Max?

Depends on what the outside temp is and how long my engine is running. Coolant gets up to 200 and oil to 180 pretty quickly. Oil is slower to warm than the coolant though. Eventually it will get to 200. If it's warm out and lots of stop and go traffic, both get up to around 220. 230 is about the most I ever see.

Originally Posted by G.I.Ceo

I am not sure if I am going to use a restrictor or not yet. I have one ready that screws into the feed and then you just screw in what size restrictor you want into that. I was thinking if I need one I will probably use a .060. I am using a 360 thrust journal bearing Garrett GT35 turbo. I will start off without one first and see if the turbo start to ooze oil.

For this setup I am using a 4an feed and 10an return.

-4AN isn't too big, so that along with any fittings (ie 90 degree bends, etc) will restrict the flow and pressure a little bit. You'll just have to test and see if it's enough, like you said. -10AN is probably overkill for the return line. -6AN or -8AN would be enough for a low pressure drain.

[HOYS]

Originally Posted by AaronGTR

Yeah, you should be fine with that pump. Not sure what size restrictor you may or may not need for the turbo. Probably depends on what the turbo calls for, what size line you run to it, and what your engine oil pressure is.

Just for reference, I'm also using a brand new Melling oem replacement pump. I see around 50psi at idle and 70-75 psi under acceleration (probably where the pressure by-pass opens up) when the oil is cold. After the engine warms up and the oil temp gets over 200, I see idle pressure around 25psi and about 50psi under load.

Where/how did you connect the oil pressure sender? I'm using the oil switch hole but I'm pretty sure it isn't high pressure.

[AaronGTR]

Originally Posted by HOYS

Where/how did you connect the oil pressure sender? I'm using the oil switch hole but I'm pretty sure it isn't high pressure.

I'm using the same spot. It most certainly is high pressure. It's in the main oil line right after the pick up and the filter before it feed the galley for the crank mains. That is the most important thing to get oil to and the first thing in line, and they want the switch before that so you know right away if pressure drops.

[G.I.Ceo]

Just wanted to post some pics of a quick update. The pictures don't do it justice especially taking them with my phone.
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[sleepyalero]

they dont show.

[G.I.Ceo]

Originally Posted by sleepyalero

they dont show.

Yeah I posted them then moved them in my account, so that's why they didn't show up.

[sleepyalero]

looks good man, its gettin there.

[G.I.Ceo]

Just giving you guys a quick update. As of today I will have everything done but the intercooler plumbing. The intercooler is bolted in just to to do the runs. Hopefully in the next few weeks at most I will have this up and running.

Here is a couple of pics of work I did last night.

Modified fuse bracket and powder coated thanks to Milzy.
[IMG][/IMG]

Wrapped the fuse box, master cylinder, and brake lines with heat shielding. This stuff works great and can withstand radiant heat up to 2000 degrees.
[IMG][/IMG]
[IMG][/IMG]

[G.I.Ceo]

As of a hour ago the turbo is bolted in for good. All that's left to do is run some vacuum lines, and run the intercooler plumbing and fire it up.