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IntenseDak39
*GenIII*
12/31/2004
19:36:41
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 Subject: RE: powerless at 2000- 2500
IP: Logged
Message:
lol...
here's the deal
i've had a turbocharged shelby charger
i've had a turbocharged dodge dakota
i've had a supercharged dodge dakota
i know first hand. I dont care what your little vacuum cleaner does. It's a totally different world. It sucks air... it doesnt compress it.
the only way it will build boost is when the crank and pistons are getting resistance. if you dont believe me, prove me wrong please. Saying i am wrong doesnt mean anything to me. Go put a supercharger on your vehicle, get a camera to video tape it, put the vehicle in neutral and rev it all you want. I bet you'll build tons of boost.
it can be the dumbest thing you have ever heard but that doesnt mean it's wrong.
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Laughing
Dodge Dakota
JOIN HERE
12/31/2004
20:00:33
| RE: powerless at 2000- 2500
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Message:
You sure are defensive about this.
There's a simple mechanical concept here that seems just out of reach.
Think on it a bit.
I'll be back Sunday to see if you've had any sudden intuitive realizations.
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IntenseDak39
*GenIII*
1/01/2005
11:04:08
| RE: powerless at 2000- 2500
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Message:
yeah i'd say i am a little defensive. Because this is one of those things where somebody has no experience with the subject but seems to "know" how it works.
ya talk a lot about "mechanical concept" but you cannot explain it. I know the supercharger is turning while the crank is turning.. but that doesnt mean it's making boost.
like i said, prove me wrong.
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Josh B
Dodge Dakota
JOIN HERE
1/02/2005
02:43:28
|  RE: powerless at 2000- 2500
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Message:
Y'know, IntenseDak39. I think Laughing's point is partially valid. Hear me out first though because I want to learn this stuff. For example, a engine is turning at 4000 RPMs with no load and the S/C is turning 12000 RPMs. If a load is put on, but the engine kept at 4000 RPMs, isn't the S/C still doing 12000 RPMs? Here's the part about what you said that I don't get. How can S/C boost pressure be different 12000 RPMs loaded engine vs 12000 RPMs unloaded engine?
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Brian P
Dodge Dakota
JOIN HERE
1/02/2005
17:19:07
|  RE: powerless at 2000- 2500
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Message:
Well first off that little "vacuum cleaner" sucks in the air so the combustion chamber can compress it with the atomized gas to give it a richer air/fuel ratio. The richer the ratio, the better your boost.
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Josh B
Dodge Dakota
JOIN HERE
1/02/2005
22:58:53
| RE: powerless at 2000- 2500
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Message:
OK I guess, Brian, but aren't you confusing S/C boost with engine power? I thought boost was just the extra intake manifold pressure the S/C makes. The amount of gas going into the cylinders shouldn't affect S/C boost at all. It sure affects engine power, though. As I understand it, S/C boost depends on its RPMs, and isn't there something like a wastegate to bleed off excess boost? Am I close?
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Laughing
Dodge Dakota
JOIN HERE
1/03/2005
00:00:53
| RE: powerless at 2000- 2500
IP: Logged
Message:
THAT'S IT!! Thanks Josh B.
IntenseDak39, I apologize. This boils down to an issue of communication and definition. By "boost," I thought you meant "the air output of the supercharger."
After reading all the your posts again, it seems you were using the word "boost" to refer to engine output.
And Brian P's post does exactly that.
If that's true, you are certainly correct.
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Josh B
Dodge Dakota
JOIN HERE
1/03/2005
09:43:54
| RE: powerless at 2000- 2500
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Message:
Uh. Your welcome, but I'm not sure why you're thanking me. Still confused about S/C boost. Is it measured as intake manifold pressure like you say, or engine output like IntenseDak39 says?
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N56629
Dodge Dakota
JOIN HERE
1/03/2005
15:34:31
| RE: powerless at 2000- 2500
IP: Logged
Message:
"any good recomendations on where i should get the aluminum air hat?"
This is the best one I have ever used -
http://www.divedesco.com/air_hat.htm
But, you might perfer one like this-
http://www.superiorairflow.com/
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sicminds
GenIII
1/03/2005
19:44:00
| RE: powerless at 2000- 2500
IP: Logged
Message:
thanks for the good laugh, that second one is prob what i am going to go with. Still got a little studder though. Could if be possible that i am running lean?
this weekend mods, triple gauge pod, and new 24 fms injectors. cant wait for the m1
click me
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Joe X
Dodge Dakota
JOIN HERE
1/04/2005
09:56:07
| RE: powerless at 2000- 2500
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Message:
Josh B.
Boost, as it applies to forced air induction systems, is typically measured as intake air pressure (between the booster and the intake mainfold). If you have a boost gauge, and you should always have one in a forced air system, closer to the output of the booster is better.
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sicminds
GenIII
1/04/2005
14:03:20
| RE: powerless at 2000- 2500
IP: Logged
Message:
the dak still has a studder too it, it happens only some times. Right around 2k or so. And something else i noticed that was kinda odd, is that when i am in 2nd and holding about 3k rpms, when i got to stomp on it it jumps to like 3400 and then falls back to 3k. Any idea on why that is happening?
Also it some times like bucks real hard once i let off the throttle.
I put in new plugs/cap rotor this weekend. Should of seen one of the rear plugs, completly covered in oil. I also ran some seafoam through, i got video of all the smoke that was pouring out. will post it up soon.
click me
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