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Unread 11-09-2006, 03:24 PM   #1
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Default Turbo Charging for Power & Economy (Cheap!)

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I have read repeatedly in other magazines that turbocharging is very difficult, troublesome, and most importantly, very expensive. One such article said that to turbocharge a late-model Chevy Lumina would cost around $20,000! There is a BMW M3 turbo kit out that starts at $22,000! (And yes there are expensive options!) The cheapest number I�ve seen in print ads is still over $2,000. This is not budget power and economy in my book. I will show you how I did it for under $300! Really!
http://fueleconomytips.com/2005/11/1...economy-cheap/

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Unread 11-09-2006, 04:25 PM   #2
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Cool, i didnt read the article, but im assuming its a carborated engine? If so its very easy to add a turbo t that car... well alot easier i should say. But all new cars are feul injected. So you cant just slap the turbo on and retard ignition ect... easily. You add boost the the engine and it wont run right and could possible damge itself from all the extra boost. To change ignition timing, feul mapping on a feulinjected engine, you have to remap the ECU. Not just anyone can do this. I mean you cant even go buy the tools to do this easily. You hav to learn it at a school... Anyways, to turbocahrge a non turbo car on anything feul injected, would surely cost more than $1000 MINIMUM. Just the ECU remapping would cost 300+ on cars these days.


But for a carburated car... this could be very feasable!
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Unread 11-10-2006, 12:10 AM   #3
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Maybe you should read the article...

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The turbo will have the ability to produce enough boost (pressure) to completely grenade most engines. Because of this, precautions must be taken to keep the boost at safe levels. This is accomplished by the use of a wastegate.
If you go crazy with the boost you will surely have to re-map the ECU, etc. But if you don't go crazy, it'd be just like a slight raise in compression without the added pumping loss.

Last edited by Pinhead; 11-10-2006 at 12:12 AM.

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Unread 11-10-2006, 07:44 PM   #4
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Maybe you should read the article...



If you go crazy with the boost you will surely have to re-map the ECU, etc. But if you don't go crazy, it'd be just like a slight raise in compression without the added pumping loss.
Ill read read it for sure, a little later perhaps..Ok i see what your saying... see im one for performance, im not used to boosting what...? 2-3psi? Im used to number well over 10psi and as high as 40+ psi on some seriouse powerhouses. Probably anything under ~4psi wouldnt need an UCU remapp.

Good find, and it could be a possibility for some of us. And possible to consider is the use of a small supercharger in place of a turbo.
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Unread 10-15-2008, 11:42 AM   #5
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It really depends on the vehicle, and how it is done. For fuel injected gas engines, there are several method for metering intake air. The two most common use either a MAF sensor (Mass Air Flow) or a MAP sensor (Manifold Absolute Pressure). A MAF sensor measures the rate at which air flows into the engine. When turbocharging a MAF-based engine, the turbocharger sucks way more air through the MAF, which leads to the MAF going static. This is a point where the MAF cannot see any additional increase in airflow, and therefore the ECU cannot add anymore fuel. A MAP sensor measures the vacuum created as the running motor sucks air through a partially closed throttle body. When turbocharging a MAP-based system, the map simply read higher, and the ECU simply does not know how to react. In both these cases, what often happens is the ECU notices that a threshold has been crossed, and it cuts fuel or kicks in some other preventative measure that basically shuts down the motor.

Even though you may be able to get away with some boost (like 4 psi as pbasil metioned) on some vehicles, but this does not alter any ignition timing, nor does it keep the air/fuel ratio in the safe range for boost (it is different for NA and Forced Induction). I personally put together a turbo kit for my car using primarily second-hand components for approximately $2700. However, IMO it is far superior to the $4500 kits out there for my motor. However I do not see a sub-$300 setup comparing to any real kits. A properly-sized turbocharger itself will cost more than $300, even one of those cheap chinese ebay turbos. Also anything you can do for that price will not compare to an actual turbo kit. This is a "you gotta pay to play" market, and nothing is gonna change that.
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Unread 10-18-2008, 04:15 PM   #6
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Basically turbo uses the exhaust to force air into the intake via the turbo charger =P So its like recycling which gives you more MPG.

Most engines should handle 5-10psi on stock internals. And most Supercharger or turbocharger kits are only about 5k. Also there will be a slew of other things that need to be upgraded like apavlov said like the MAF, exhuast, ect. Of course luxury cars will cost a lot more. I mean look how expensive some oil changes are on those things

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Unread 11-08-2008, 09:26 PM   #7
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lol $300... maybe if you could weld yourself a custom manifold, go to the junkyard and steal a turbo off a wrecked car without them noticing, and then stealing a bunch of piping and welding yourself an exhaust system. Hell a decent Wastegate is more than $300.

To Turbo an N/A more is easily $3000...maybe he typo'd. Either way I do think Turbo/supercharging is a great way to get better power without sacrificing Fuel Economy.

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Unread 11-09-2008, 01:10 AM   #8
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Hi the link is not working....
thank you

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Unread 11-09-2008, 01:37 AM   #9
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Originally Posted by Keatonus View Post
lol $300... maybe if you could weld yourself a custom manifold, go to the junkyard and steal a turbo off a wrecked car without them noticing, and then stealing a bunch of piping and welding yourself an exhaust system. Hell a decent Wastegate is more than $300.

To Turbo an N/A more is easily $3000...maybe he typo'd. Either way I do think Turbo/supercharging is a great way to get better power without sacrificing Fuel Economy.
Definitely. Its not cheap to turbo/supercharge anything. Period. But when you do, there is a great increase in economy and power.
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Unread 11-09-2008, 11:38 AM   #10
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Most engines can't take more than 3 to 5 psi on stock internals on the bottom end of the motor. That will still give you You need forged rods/pistons etc in order to handle higher psi, or you will blow your motor to pieces. Honda kids find this out all the time.

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