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60herbie53
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PostSubject: Re: draw through turbo warning   Thu Apr 14, 2011 6:03 pm

Well that worked out.

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PostSubject: bug   Thu Apr 14, 2011 6:55 pm

The bug started right up with the 009. I want to run a vac advance distributor.
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PostSubject: Re: draw through turbo warning   Thu Apr 14, 2011 7:49 pm

You should try the MagnaSpark digital from CB. It allows you to map your advance based on the vacuum load at the carb.

I saw one on Sunday. Maybe I'll pick mine up, it's at work in Citrus Heights.

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PostSubject: Matt   Thu Apr 14, 2011 8:04 pm

I would do a Megasquirt first. And no more draw through.
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PostSubject: Re: draw through turbo warning   Thu Apr 14, 2011 8:15 pm

I think a Megasquirt is the way to go too. (Which is why I am soldering one together)

But even doing it on the cheap it will cost more that buying the CB digital distro.

Less time and work to setup too. Like 30 minutes.

Just a thought, a quick solution for a digital timing map.

I am going to run it in May until I build a motor for her. But she is running pretty good with the 009 now that I adjusted my accelerator pumps on the Kads.

I do hit a flat spot when downshifting into a corner and then stepping on the gas to come out of it.

That is why I purchased the CB digital unit. I have been told it works very well for that.

And if you are like me and don't have an 'expansive' inventory of parts, a new SVDA distro with a Compu Fire unit is almost as much as the digital one from CB.

Plus it plugs into my laptop, and in my mind, that is a good thing...

scratch

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PostSubject: Matt   Thu Apr 14, 2011 9:38 pm

Matt what do you want to try. I found a 050 the other day in my collection. Do you want a SVDA I can bring one Saturday.
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PostSubject: Again   Sat Apr 16, 2011 10:29 pm

Driving home from Tech and got out of car checked for anything new and looked at the intake right behind the Carburetor water droplets. DO NOT BUILD A DRAW THROUGH. You can heat it and I can use the turbo to heat it but that would mean water pump and storage.
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PostSubject: Re: draw through turbo warning   Sat Apr 16, 2011 10:35 pm

So what you are basicly sayin' is that a draw-through sucks...

lol!

I am funny lately...

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PostSubject: Re: draw through turbo warning   Sat Apr 16, 2011 10:39 pm

Mateo wrote:
So what you are basicly sayin' is that a draw-through sucks...

lol!

I am funny lately...
But basically right! Smile
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PostSubject: Matt   Sat Apr 16, 2011 10:39 pm

There are better systems out there.
I wonder if and deck lid would help, I know the answer to that...yes
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PostSubject: Matt   Sat Apr 16, 2011 10:45 pm

And they still sell them
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PostSubject: Re: draw through turbo warning   Sat Apr 16, 2011 10:47 pm

So I am new to this turbo thing and just beginning my internship, but do you not circulate oil through it to keep it from condensating? (I might have just made up a new word)

Is it the fuel and air being drawn through that is cooling it off?

study

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PostSubject: Matt   Sat Apr 16, 2011 10:52 pm

The atomizing of the fuel is the problem. You can do oil or water, I dont have enough oil pressure to spare so it would be water.
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PostSubject: Re: draw through turbo warning   Sat Apr 16, 2011 11:01 pm

How about one of these:

http://www.cbperformance.com/catalog.asp?ProductID=191

or one of these:

http://www.cbperformance.com/catalog.asp?ProductID=1616

Might be cheaper than water. H2O is so overated, that is why your 914 is dropping boost, it is protesting.

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PostSubject: Re: draw through turbo warning   Sat Apr 16, 2011 11:05 pm

The oil is for oiling the bearings in the turbo. It draws off a small amount of heat (and dumps it in the motor) The air fuel mixture doesn't cool the turbo significantly.
The turbo heats the air/fuel. That's where the intercooler helps, because hot air has less molecules, and therefor burns less efficiently. ( I think I got that right)
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PostSubject: Re: draw through turbo warning   Sat Apr 16, 2011 11:07 pm

type 4 wrote:
The atomizing of the fuel is the problem. You can do oil or water, I dont have enough oil pressure to spare so it would be water.
But you are running oil to the turbo bearings?!
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PostSubject: Matt   Sat Apr 16, 2011 11:07 pm

Ken one of the guys with a orange Baja at tech day today has one I am going to go look at. I also have a new oil pump. I made a puller a couple of tare downs ago. so changing it out would be easy.

Thanks
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PostSubject: Eric   Sat Apr 16, 2011 11:08 pm

Eric that is correct, maybe my line is to big.
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PostSubject: Re: draw through turbo warning   Sat Apr 16, 2011 11:12 pm

I think AN-3 is the recommended line size. Another thought is worn bearings in the turbo. You might be pumping oil right through the turbo and down the return line. Did you have good oil pressure before?
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PostSubject: Eric   Sat Apr 16, 2011 11:12 pm

Eric the transition piece just under my carb has a chamber for heating with oil or water.

180 was as high as the oil got today no external cooler but it was not hot outside today either
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PostSubject: Eric   Sat Apr 16, 2011 11:15 pm

I think I am running a 3, one step down from a six I believe
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PostSubject: Eric   Sat Apr 16, 2011 11:16 pm

I have only put 100 miles on the motor. It is a gas hog.

And I was not running a gauge
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PostSubject: New turbo   Sat Apr 16, 2011 11:23 pm

If I changed the flange from a three bolt to a t3 or t4 I can run my new turbo and do a blow through. But I am pretty tired of working on cars. Its been a busy year and a half. Bug, Honda, Porsche and back to the bug. We blew up the 2 dr Honda not bad but it needs a refreshing up. Gaskets and bearings. I want to work on the house and make my wife happy
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PostSubject: Re: draw through turbo warning   Sat Apr 16, 2011 11:26 pm

I thought water around the snail was just to keep from cooking the oil while in heavy boost and for cooling after shutdown???

And like you said, the introduction of an inter-cooler is what provides additional cooling of the air being pushed or pulled through the turbo???

You could always inject propane to cool the air in the turbo as well. Wink

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PostSubject: Re: draw through turbo warning   Sat Apr 16, 2011 11:28 pm

That's about where I'm at too. Tired of fleet maintenance.
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