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Unread 08-12-2005, 09:46 PM   #1
CoriolisSTORM
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difference between superchargers and turbochargers?

Okay, since I've heard the terms thrown around a long time, what the heck's the difference between a super charger and a turbo charger? Just wondering you see.
Anyway, on that same topic, Chrysler had a 2.5L w/ a turbo in it in the early 90s. Is the Chrysler 2.5L the same 2.5L used in my 98 Wrangler? I'm wondering if the turbo from the 2.5L would fit into my jeep engine without too many modifications. I just really need to know I guess, is the Chrysler 2.5L and the Jeep (I guess) 2.5L the same engine?

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Unread 08-12-2005, 09:54 PM   #2
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both are just "fans" that use forced induction to provide power...

the main difference is that superchargers are belt driven off of the engine, while turbo charges are driven by exhaust gasses, usually by using a specially designed exhaust manifold...

the main complaints (not always valid) are that supercharges rob power from the engine (just like a clutch fan vs. an electric fan), and that turbocharges have a "turbo lag" waiting for pressure to build up...

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Unread 08-13-2005, 09:39 PM   #3
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Well, I was reading in my Petersen's 4x4 and Offroad today about them, and they seem to recommend a super charger more for an offroad vehicle. Did anyone make a supercharger for the Chrysler/plymouth/dodge/Jeep 2.5L?
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Unread 08-13-2005, 11:45 PM   #4
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give it up you won't find anything for cheap.if you plan on doing anything with either expect to pay out the nose to get it done.the cheapest i have seen a home brew turbo go for is $1500 to $2000 after all was said and done and it was installed.

you are not going to find a direct bolt on supercharger from anything to fit that motor.and to purchase such a kit is in ups of $3000.

its not just a matter of tossing on a turbo/supercharger.there are many things that have to be taken care of first.you are raising the compression of the motor to levels it wasn't designed to handle with out modification.it is only going to blow the head right off that motor.you are better off looking to throw a Chev 3.4L V6 in it out of a S10 blazer.you can use everything out of the Chev motor/trans/transfercase.

oh and its not a 2.5 its a 2.8

here is a link

engine swap
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Unread 08-14-2005, 04:59 PM   #5
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Turbos are "free hoarsepower" -- This is said because of what BigWaylon said, they aren't belt driven. Turbo lag can kill you offroad. A turbo will be useless offroad. Turbos usually like to run at high RPM (which means high exhaust flow), but superchargers like lower RPM and are more reliable in that range.

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Unread 08-14-2005, 08:35 PM   #6
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Quote:
Originally Posted by ExplorerDMB
Turbo lag can kill you offroad. A turbo will be useless offroad. Turbos usually like to run at high RPM (which means high exhaust flow), but superchargers like lower RPM and are more reliable in that range.

-Drew
the turbo lag, high RPM and "useless" offroad would only be reasons if it wasn't a properly designed and proper sized turbo...

you could make a very nice setup that would work great...

Jason @ RedRock4x4 is running a turbo on his...


although...a roots or twin-screw (like the one Kenne Bell makes for a 4.0L) supercharger would be quite nice...

I wouldn't want to run one like the Vortech I had on my Dodge Ram...same reasons as you listed as "cons" for the turbo...


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Unread 08-24-2005, 03:28 PM   #7
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Quote:
Originally Posted by CoriolisSTORM
Okay, since I've heard the terms thrown around a long time, what the heck's the difference between a super charger and a turbo charger? Just wondering you see.
Anyway, on that same topic, Chrysler had a 2.5L w/ a turbo in it in the early 90s. Is the Chrysler 2.5L the same 2.5L used in my 98 Wrangler? I'm wondering if the turbo from the 2.5L would fit into my jeep engine without too many modifications. I just really need to know I guess, is the Chrysler 2.5L and the Jeep (I guess) 2.5L the same engine?
no, the turbo I engine (chrysler 2.5L) and the 2.5L in the jeep aren't the same. The turbo I is part of a four turbo engine series from the 80's, was designed by chrysler, and has a 8V head and SOHC. It had an iron (i think) block and the head was aluminum. Your 2.5L was designed by AMC back in the 70s(?) and has an iron block and iron head, and pushrods.

turbos are exhaust driven, and can be just as useful offroad as a supercharger. a smaller turbo will spin up real fast and can create power at the low rpm's that you reach on the terrain. it just depends on what the kit is built for.

superchargers are belt driven, and are the more popular choice for offroading.
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Unread 08-25-2005, 01:50 PM   #8
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Quote:
Originally Posted by CoriolisSTORM
Okay, since I've heard the terms thrown around a long time, what the heck's the difference between a super charger and a turbo charger? Just wondering you see.
Anyway, on that same topic, Chrysler had a 2.5L w/ a turbo in it in the early 90s. Is the Chrysler 2.5L the same 2.5L used in my 98 Wrangler? I'm wondering if the turbo from the 2.5L would fit into my jeep engine without too many modifications. I just really need to know I guess, is the Chrysler 2.5L and the Jeep (I guess) 2.5L the same engine?
2 different 2.5 L motors. The 2.5 Chrysler overhead cam motor started life as a 2.2 L version. The first frontwheel drive car Chrysler built was the Omni. (1978) It had a 1.7 VW motor in it. Chrysler developed the 2.2 motor to use in it's new seris of front wheel drive cars. The "K" car, Dodge Aires. This is the car and motor that put Chrysler back in business. They stroked the 2.2 out and added counter balancers and came up with a 2.5 L version. They added the turbo a little later. I think it had about 150 HP. The 2.5 Jeep motor was also used in the Dodge Dakota. It is basically a 4.0 with 2 jugs cut off. Look close at the OHV 2.5 and a 4.0 L motor someday. Same deal, just shorter. I had a extended cab '99 Dakota with one in it. A true dog. Good ridence to the slug. The redline on my Dakota 2.5 slug was 4600 RPM. It did get 25 MPH though on the hwy. 0-60 times were in the neighborhood of 6 minutes. LOL Bob
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Unread 08-27-2005, 08:34 PM   #9
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..

A turbo in a Jeep would serve more for an originality factor than anything else...
why bother...just swap it already...
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Unread 08-30-2005, 09:01 AM   #10
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Well guys turbo's don't always have lag. With a jeep you could a small enough turbo to have very little lag. I am working on that with my 4.0L right now. I am building a turbo kit I will post numbers soon but for all you guys that are not crazy off roaders and just want a faster jeep for every day use a turbo would work great.
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Unread 09-01-2005, 07:13 PM   #11
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