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Old 12-09-2015, 08:54 AM   #1
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Turbo charging

Has any one looked into or successful at Turbo charging an 8.1 or any MH ? Not necessarily for power increase but, to increase cold into the intake.
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Old 12-09-2015, 09:28 AM   #2
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Turbocharging has the opposite effect, it heats up the air when you compress it. That is the main reason for an intercooler, to help cool the air before it goes into the engine. But since most all intercoolers are cooled by ambient air, the lowest you can get is ambient temp, which is same as the normal aspirated engine gets.

The main advantage to turbo is that you get more air (and therefore Oxygen to assist fuel burn) in the cylinder, so you can burn more fuel and make more power. Having a cooler air charge into the cylinder is just denser air and subsequently has more Oxygen available.
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Old 12-09-2015, 12:44 PM   #3
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Why just cold into the intake?

A simple way would be to add water or meth injection

As stated above a turbo will not cool the air. Due to how turbos work using the engines exhaust heat to spin the turbo, heat will be added. In addition to more power better fuel economy is another side affect of a turbo, that is as long as you stay out of boost. If you are in boot often mpg will be much worse.
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Old 12-12-2015, 09:33 AM   #4
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I would go for Turbo-normalizing system. Light aircraft use this. It holds turbo to 30 inches of manifold presure. Which makes the same HP to 10,000 feet or above as sea level. Most of the gassers have enough HP to get around, but when climbing a pass lose up to half the power do to altitude/oxygen.

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Old 12-12-2015, 09:43 AM   #5
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Originally Posted by OLYLEN View Post
I would go for Turbo-normalizing system. Light aircraft use this. It holds turbo to 30 inches of manifold presure. Which makes the same HP to 10,000 feet or above as sea level. Most of the gassers have enough HP to get around, but when climbing a pass lose up to half the power do to altitude/oxygen.

LEN
Turbo-normalizing makes sense for an air plane where it runs at a high percentage of peak power at all sorts of altitudes without the benefits of electronic engine controls and engine certification rules are ridiculous complex. If you're going through the hassle of designing a turbo system, you might as well gain a little power too with a moderate amount of boost. A stock engine could easily handle 5 psi and get you another 50+hp horsepower. Most people would like more power.
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Old 12-12-2015, 10:23 AM   #6
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Supercharging may be an easier ad due to less plumbing involved.

Not much room for a turbo or plumbing for both ends of the engine but possible for super charger that runs from fan belt.

Still may not work but something to consider.
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Old 12-12-2015, 12:50 PM   #7
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I agree, supercharging would be the way to go. An intercooler would still be required since much of the heat is generated due to compression of the air. In aftermarket turbo systems a lot of issues occur due to lack of proper cooling of the pressurized air.

Turbonormalizing is just a marketing term that indicates the boost is not going to be more than sea level pressure (OK - slightly higher to make up for internal losses). One advantage is that lower boost means lower stresses on the engine. This is more important on aircraft piston engines, which are stuck on mostly 1950's technology and ignition systems and don't have the variable timing required to avoid detonation.
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Old 12-12-2015, 05:35 PM   #8
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What about a "pro-charger" it's the size of a turbo but a supercharger, that make them for lots of different vehicles.
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Old 12-14-2015, 12:40 PM   #9
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Procharger is just a brand of a centrifugal supercharger, as opposed to a positive displacement supercharger. Either can generate intake pressure above atmospheric, and both have the same issue of heating the air when it compresses.

I do have to add, even though the air is heated, you can still get more power without intercooler because you end up with more net oxygen to support more fuel burn. An intercooler just allows to have even more oxygen available, at least in a simplified explanation.
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Old 12-14-2015, 01:02 PM   #10
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Some food for thought or eye candy
Would You Do It?
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Old 12-14-2015, 01:16 PM   #11
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Unfortunatly STS (the system maker featured in that thread's opening post) is out of business.

Squires Turbo bought (reacquired) the licenses and excess stock...so...anything is possible....see:
Squires Turbo Systems - STS Turbo

The key to the STS (originally Squires' idea) was that no intercooler was needed because of the rear mounted turbos. The boost plumbing back to the front/engine provided a similar function. It was featured in several magazines installed on Corvettes and a Camero when it was new...reportedly worked well.

Safe travels
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Old 12-15-2015, 08:02 PM   #12
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Why would anybody want to turbo charge an 8.1 in a motorhome?? There is no room to begin with and it is not cost effective. Seems a little odd.
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Old 12-16-2015, 06:37 PM   #13
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No room?
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Old 12-16-2015, 06:49 PM   #14
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can you say "turbo lag"?
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