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 AASG 
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Joined: Mar 2006  USA
 Posts: 1190 Feedback: 100% (1) |
Posted: 4/5/2012 9:46:49 PM
THE IMAGE ABOVE IS A PAID ADVERTISEMENT |
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Posted: 4/5/2012 11:59:54 PM
[Last Edit: 4/6/2012 12:00:08 AM by kapnkrunch]
If you are going to run a turbo with a carb look up how to setup a Holley for use in a blow through style setup. If you want a good book on turbo systems and designs look for a copy of Maximum Boost by Corky Bell.
http://www.theturboforums.com/smf/index.php This is a good place for info.
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brian4wd
Member
Team Member
Joined: Nov 2002 CA, USA
Posts: 17791 Feedback: 0% (0) Link To This Post |
Posted: 4/6/2012 1:37:37 PM
Buy the turbocharging book written by Hugh McGinnes(sp?) before you start hacking stuff up.
Perkins turbo is probably a horrible match on a gas 350 |
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saturnstyl
Expert Witness
Team Member
Joined: Oct 2005 NC, USA
Posts: 9171 Feedback: 100% (2) Link To This Post |
Posted: 4/6/2012 9:07:23 PM
Originally Posted By kapnkrunch:
If you are going to run a turbo with a carb look up how to setup a Holley for use in a blow through style setup. If you want a good book on turbo systems and designs look for a copy of Maximum Boost by Corky Bell. http://www.theturboforums.com/smf/index.php This is a good place for info. I have that book. IIRC a draw through turbo system is going to be a bitch to start and have a number of drivability issues, plus the size of the turbo probably won't work well in your application. For oil lines you could simply use a restrictor and pull some oil off the filter adapter, and have it return through the valve cover or oil cap or something. Sounds pretty ghetto but it does work. You have a number of other things to modify as well. In the end you may find the draw through turbo much less effective than a different setup, or even modifying an existing engine without forced induction if draw through was your means of fueling it. |
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Truth2882
I keeps it real.
Team Member
Joined: Jan 2010 IL, USA
Posts: 6020 Feedback: 100% (26) Link To This Post |
Posted: 4/6/2012 9:27:15 PM
Nitrous
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Posted: 4/6/2012 11:33:12 PM
Originally Posted By saturnstyl:
Originally Posted By kapnkrunch:
If you are going to run a turbo with a carb look up how to setup a Holley for use in a blow through style setup. If you want a good book on turbo systems and designs look for a copy of Maximum Boost by Corky Bell. http://www.theturboforums.com/smf/index.php This is a good place for info. I have that book. IIRC a draw through turbo system is going to be a bitch to start and have a number of drivability issues, plus the size of the turbo probably won't work well in your application. For oil lines you could simply use a restrictor and pull some oil off the filter adapter, and have it return through the valve cover or oil cap or something. Sounds pretty ghetto but it does work. You have a number of other things to modify as well. In the end you may find the draw through turbo much less effective than a different setup, or even modifying an existing engine without forced induction if draw through was your means of fueling it. I've already got a big cam with .224 duration intake & exhaust, wich is good for forced induction and low compression wich is also good. This is a 4 bolt main with high volume/high pressure oil pump. I've always thought this engine was a prime candidate for a blower. I'd love to put a blower on it, but thinking money is tight. With gas prices, this is just my weekend warrior street car. Can't justify $4K on the blower. On the other hand I could install this turbo for just the cost of some tubing and my time and see if it works. 
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Posted: 4/6/2012 11:34:13 PM
Originally Posted By Truth2882:
Nitrous Yeah, I know. $350=650HP!!!! NICE!  |
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DernHumpus
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Team Member
Joined: Jun 2007 IA, USA
Posts: 5144 Feedback: 100% (6) Link To This Post |
Posted: 4/7/2012 10:38:23 AM
+1 on the Nitrous. Much easier, no harder on the engine for a given amount of HP.
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brian4wd
Member
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Joined: Nov 2002 CA, USA
Posts: 17793 Feedback: 0% (0) Link To This Post |
Posted: 4/7/2012 11:42:14 PM
Originally Posted By AASG:
On the other hand I could install this turbo for just the cost of some tubing and my time and see if it works.
Nothing as expensive as an "easy" job just because you have some parts.............. Matching the turbo to the engine is a bit more complicated than just comparing displacements and the structural issues associated with mounting a a turbo on the exhaust isn't exactly a walk in the park. My college roommate designed/analyzed/built a set of exhaust headers for his mechanical engineering senior project - he got a pair of turbos to twin turbo the 350 Chevy in his 1/2 ton 4wd when we interned at Garrett Turbo. Brian |
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Posted: 4/8/2012 3:45:15 AM
You could have a built spray engine for the same amount as you would have in making that turbo work on your currently unbuilt engine. This granted you are a skilled wrench turner. You're going to have to merge the exhaust manifolds and lots of other things which winds up being way more expensive than you think.
Honestly, you could put a 100 shot of spray on that engine and it wouldn't even flinch probably. Less headaches, less work, and likely a better setup with the given platform you have. |
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Posted: 4/8/2012 10:07:11 AM
Originally Posted By AASG:
I've got a chevy caprice with a 350. I'm wanting more power, can't afford a blower, but I have a turbo off a Perkins 236 diesel. How would you hook up the oil lines on a small block chevy? Any pictures of how I would mount the set up? I'm good at fabricating, I'm thinking about useing upside-down block huggers headers and puting plumbing the turbo above the intake, carb on top of that. Never going to work. The hot side of a turbo will regularly see temps well over 1000 degrees F. Heat transfers pretty quickly over to the compressor side. Drawing nicely mixed and atomized air and fuel through it is going to end in a lot of smoke and flames. If you're looking to do a blow through, you'll need to get a different carburator. I'm not familiar with the turbo you have, but diesel turbos usually don't spool very well on gas engines. There's just not enough exhaust velocity. |
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Posted: 4/8/2012 10:49:09 AM
The only thing about nitrious is I don't think you can run it more than a few seconds, right?
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Posted: 4/8/2012 11:02:42 AM
Originally Posted By AASG:
The only thing about nitrious is I don't think you can run it more than a few seconds, right? It just depends on how long it takes you to get 1320 feet from where you launch. Turbos are fundamentally no different from n20. Gone awry they'll both do similar things to an engine. Ill probably spray my mustang once I regear. |
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Posted: 4/8/2012 11:04:29 AM
Building a turbo Donk?
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