#66814 - 10/14/11 06:31 PM
Re: snowman4839 turbo build
[Re: snowman4839]
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Mean buzzen half dozen A.K.A. Hank
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Registered: 09/23/04
Posts: 4550
Loc: Ca
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Hard to tell from the oil return line pics, but if the line/hose drops down lower than where your fittting is in the oil pan, then that is incorrect.
You cannot have any kinks in the oil return hose.
"if the fuel pump works why mess w/it"
You must think I post things here on the forum for no reason.
Yes you need a boost ref line, when you are in boost & you feel the engine cutting out/running out of fuel, that is when you are going to get detonation & when your pistons will blow.
Also, as I have always stated, you cannot always hear detonation, what kind of exhaust muffler/system are you running when driving?
Just curious as to how do you know you are running rich?
I know you are excited, that's understandable, turbos are great!
With the pump gas we get, all the alcohol in the gas dries out your hoses, let your car sit for a long time & watch the fuel eat up your rubber hoses.
A little Xylene or toluene is not going to harm it, you would not use 100% of the stuff. Sorry I suggested a cheap/better octane booster than the typical auto parts stores sells.
Torco accelerator is the best octane bought booster. A.F.A.I.K.
http://www.ebay.com/itm/Best-Fuel-Additi...=item2c5a5bc2fd
The stock valve cover vents are OK for a stock naturally aspirated engine, but now, you are boosting the engine, the excess crackcase pressure has to go somewhere & where it does so is @ the front timing cover seal & @ the rear crankshaft seal = not good.
If your engine levels off @ 2800 & is comparable to the 4bbl engine, it should not be this way, sounds like you are ruuning out of fuel IMO. Not the jets size, but your fuel bowl emptying.
Your turbo engine should pull hard all the way to 4800 or so rpm w/much more authority than compared to your 4bbl set-up.
I know it's not tunned , but this is how it should feel when its all tuned.
Just be carefull, I do not suggest stuff for you to do or get for no good reason.
Goodluck
Repeat questions, how much boost are you seeing & what exhaust system/muffler are you running so you can listen for detonation?
MBHD
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#66817 - 10/14/11 07:46 PM
Re: snowman4839 turbo build
[Re: Mean buzzen half dozen A.K.A. Hank]
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Mean buzzen half dozen A.K.A. Hank
Active BB Member
Registered: 09/23/04
Posts: 4550
Loc: Ca
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Snowman,
I am not getting hostile & you are not pissing me off.
I know it's hard to tell how we are coming across from typing on the keyboard, so believe me , I am not mad whats so ever.
As far as the oil return hose, the oil has to return freely w/no resistance going back into the oil pan,, sorry, but that's the way it has to be.
I could really car less if you dont use Xylene or Toluene, I have used it & it does work. No hostility.
To me, this is not hostile" Sorry I suggested a cheap/better octane booster than the typical auto parts stores sells"
if that's what you are referring to? I appologize if you took it that way.
Venting the valve cover, there are different ways.
adding breathers like these:
http://www.summitracing.com/parts/EDL-4211/
or: http://www.summitracing.com/parts/OFY-5408/
Or a -12 or a couple -12 fittings in the valve cover w/a hose/hoses that goes to a catch tank: http://www.summitracing.com/parts/CTR-23-031/?rtype=10
Or a vacuum pump system http://www.summitracing.com/parts/MOR-22640
MBHD
_________________________
12 port SDS EFI
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#66818 - 10/14/11 07:54 PM
Re: snowman4839 turbo build
[Re: Mean buzzen half dozen A.K.A. Hank]
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tlowe #1716
12 PORT ADVERTISER
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Registered: 04/01/04
Posts: 2333
Loc: Dysart, Iowa
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Here are a couple examples of return areas/ fittings.
You want the hose to free drain to pan, not have to be pressurized to drive the oil out. The oil coming out of the turbo is frothed up and becomes thick with air bubble. It does not flow well.
Get your boost gauge hooked up. You have to know what boost is there.
You have to get the fuel pump to raise pressure with boost. 1 lean time and your pistons will melt. They will spray molten aluminum out the tail pipe.
This is what is meant by vents.
Edited by tlowe #1716 (10/14/11 07:55 PM)
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#66858 - 10/16/11 03:33 PM
Re: snowman4839 turbo build
[Re: snowman4839]
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Mean buzzen half dozen A.K.A. Hank
Active BB Member
Registered: 09/23/04
Posts: 4550
Loc: Ca
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The way it is installed, it will be backing up the oil & will cause the oil to continiously to injest into the compressor wheel which then will injest into the engine & will effectively lower the octane rating of whatever fuel you intend to use.
So, in short,,,,,,,,,,,,,,,,,, it will not work,,, period.
You will continiously need to replenish the oil for your engine because it will be burning it up through the combustion process.
MBHD
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#66867 - 10/16/11 06:27 PM
Re: snowman4839 turbo build
[Re: snowman4839]
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tlowe #1716
12 PORT ADVERTISER
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Registered: 04/01/04
Posts: 2333
Loc: Dysart, Iowa
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I agree, try getting the kink out and try it again. It never hurts to try. And you are doing it. Keep it up!
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#66872 - 10/16/11 09:16 PM
Re: snowman4839 turbo build
[Re: snowman4839]
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Mean buzzen half dozen A.K.A. Hank
Active BB Member
Registered: 09/23/04
Posts: 4550
Loc: Ca
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Hmmmm,,
I guess I do not make myself clear enough or you do not want to take my advise? 
Yes,, you should take the kink out, that will the first part of the 2 problems you have with your oil return line.
The other problem (which will not allow the oil to drain back into the oil pan) is the fitting (in the oil pan) it is pointing down @ an angle, that part will not allow the oil to drain back into the oil pan.
You will need to patch the hole in the oil pan & make another hole in the oil pan in order to install a fitting that comes out to the side, or better yet the fitting will point up towards the turbo.
Hope this makes some sort of sense? 
If you understand, knock 2 times. 
Testing, testing, does this pic link work?
http://www.google.com/imgres?imgurl=http...9QEwAQ&dur=6093
MBHD
Well it seems like it would be the kink pushing oil into the housing and not necessarily the fitting location. Shouldn't I try to take out the kink first and see if that stops the leak before I go ahead and patch up the hole I made and redo another hole?
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#66894 - 10/17/11 08:10 PM
Re: snowman4839 turbo build
[Re: snowman4839]
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tlowe #1716
12 PORT ADVERTISER
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Registered: 04/01/04
Posts: 2333
Loc: Dysart, Iowa
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Those oil pressures are normal. Getting the drain fixed will help a lot.
Are you working on the boost gauge and A/F meter? I know you are waiting on the drain parts.
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#66908 - 10/18/11 06:10 PM
Re: snowman4839 turbo build
[Re: snowman4839]
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tlowe #1716
12 PORT ADVERTISER
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Registered: 04/01/04
Posts: 2333
Loc: Dysart, Iowa
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The 2.5" exhaust will probably work fine for the low boost setup. 3" would be better. Run what ya got. Tom
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#66931 - 10/19/11 07:54 PM
Re: snowman4839 turbo build
[Re: snowman4839]
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tlowe #1716
12 PORT ADVERTISER
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Registered: 04/01/04
Posts: 2333
Loc: Dysart, Iowa
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It is addicting. Be careful, that little bit of detonation you hear is REAL damaging to pistons and rings.
You have a bunch of tuning to go. Take it easy with the timing. Do you have a dial back timing light?
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#66934 - 10/19/11 08:14 PM
Re: snowman4839 turbo build
[Re: Mean buzzen half dozen A.K.A. Hank]
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tlowe #1716
12 PORT ADVERTISER
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Registered: 04/01/04
Posts: 2333
Loc: Dysart, Iowa
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Not really, just grinning with him. It's all fun. Destroyed a few engines at his age. Learned a bunch. Wish I had people back then that could have steered me straight like he has.
With Snow seeing 15 PSI, That poor old 250 did not know it had that king of power in it.
Snow, You better get the O2 sensor hooked up.
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#66997 - 10/24/11 06:59 PM
Re: snowman4839 turbo build
[Re: snowman4839]
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Mean buzzen half dozen A.K.A. Hank
Active BB Member
Registered: 09/23/04
Posts: 4550
Loc: Ca
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Running 13.0 @ W.O.T. is too lean. 
13.0 A/F ratio is not extremly rich B.T.W., it's extremly lean, especially when boosted & running 15 psi.
12.5 is lean also @ W.O.T. Thats not playing it safe.
I would tune around 11.8 @ W.O.T. @ 15 PSI of boost, (rough estimate)
If you think it is making good power @ 15 psi w/out an intercooler, wait until you install an intercooler & get the tuning correct. 
Idealy, 14.7 is good for idle, but sometimes some engines do not like that A/F ratio.
14.7 A/F ratio for cruise is a good area to try & get.
Are you still running 15 psi?
When you say you are concervative w/the timing of 10 degrees initial, how much mechanical advance does the dizzy have?
Just a rough questimate w/your engine & depending on how how boost you are running,, you would want a total of 17-20 degrees total,, again, depending on boost level.
When you install an intercooler, you will be able to run more timing, & w/a methanol injection system, you can run even more timing & that will equal to A LOT more power.
With your exhaust system being really loud,, I highly doubt you can hear the detonation going on. As I always said, you cannot always hear detonation in your engine, that is why knock sensors is key to help save your engine.
When are you going to smoke your dads car?
MBHD
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