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Pro Charger or KB

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Old 04-02-2012, 08:15 PM   #21
Dragonus18
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Couldn't have said it any better.. BTW bad a** vid my man!
Thank you. This is a kinda old video. Since this video I've gone to an off road x-pipe , got a BBK 78mm throttle body / plenum and forged my block. Not to mention it's now aluminium and a 5.0 . This video was on a conservative tune. I was making 353hp/383rtq. Now with this tune coming up I'm pulling out all the stops because..... I can!
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Old 04-03-2012, 01:05 AM   #22
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I don't have either but from a budget stand point the centri blower is far cheaper to build where a kb would be more expensive, but let me tell you, type in bad *** cobra on you tube and that black one sounds like pure sex. I'm sure a lot of us have seen this video
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Old 04-03-2012, 08:54 AM   #23
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The only problem with the KB is trying to keep the tires from breaking loose. With a procharger the power is made up high which promotes traction because it doesn't come on until about 2500-3000rpms. With a KB your power is low to mid RPM range which can indeed make a fun street car but unless your rear end is built you're going to break something sooner than later because your rear isn't built. The other thing is that on the top end it doesn't make much power. On a centri blower that's not the case. I don't have to build my rear end because I'm not going to be hardly straining it when I launch and when I'm racing the top end from the centri blower is going to help out a lot. The other thing is blower whine. I don't have anything against a KB but I don't like the way the blower whines. It sounds like a pig getting slaughtered to me but I know to someone else it must sound like a beautiful melody to their ears. You can see how a centri blower acts by the video I posted below. I have some Nitto 555R's on and all they do is chirp and I'm making 383rwtq at the tire. Given this video is a little dated because I've had this blower on a while it can show you how centri blowers act at the drag strip.

http://www.youtube.com/watch?v=RIUiH...IcguNEieYwE-g=
Damn now i dont know what i want to get
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Old 04-03-2012, 08:59 AM   #24
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I daily drive my Kb and I don't rip my tires lose driving around everywhere..... I rip them loose when I want them loose. You guys make it sound like breaking tires is uncontrollable with a Kb lol
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Old 04-03-2012, 09:07 AM   #25
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I agree the PD blowers make power sooner and centri up high... so pick what you want to fit your needs and budget..

But the idea a PD blower stops making power up high is just wrong. It's not like power suddenly falls off at 4500 RPM. The power is still there. And you won't break your rear just BC of the blower choice.

Too much opinion trying to be passed off as fast in this thread.
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Old 04-03-2012, 09:50 AM   #26
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::In response to the 2 above posts::

I'm not saying that a KB is uncontrollable. What I am saying is that the power is there basically immediately and that temptation is harder to resist IMO when you know that by pressing the throttle a little more your stang is gonna take off and if you don't have softer tires like some drag radials than you WILL LOOSE CONTROL if you step on it and anyone who has a blower with normal street tires can tell you that. I know when I hear my centri blower whining when I'm at 2500rpms it makes me wanna nail it so I can only imagine what it must do to someone who has a KB that makes power in the low-mid rpm range which is where daily driving tends to take place and why when Ford supercharges a gas powered truck they always choose a roots/twinscrew type blower so that their trucks can tow better and the benefit of low end torque. In a diesel truck it's different because the diesel engine makes a ton more torque than a gas powered engine to begin with so a turbo is chosen to help out with their high end problem. As far as ripping your rear end goes, if you have tires that actually hook and don't break loose when you race at the drag strip from a dig than I think it's common knowledge unless I'm mistaken that your rear end will take much more of a beating than with a centri blower that doesn't come on until later. I'm going to make a video of my centri blower car and though I won't nail it because I have stock tires on I will show you when the boost comes on and than you can be the judge yourself.
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Old 04-03-2012, 09:55 AM   #27
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Oh, to PD blowers make too much power to handle??? (Fun sarcasm, that's all)

Street tires will spin... and save your rear.

I drive a PD blower on street tires everyday and don't even think about the rear failing on me. If you beat a car beyond what it can take, it will break no matter what blower is forcing the air in. It's all about driving like a mature adult and not a jackwagon.
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Old 04-03-2012, 11:13 AM   #28
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the guy(nitrus guy) in this link had some ideas about centri's and drag racing then when a bunch of centri guys tuned in and actually showed their 60ft times at the track the hard numbers(proof) kinda went against his theories. Yea its fine to have power down low but who races or crosses the line in the low rpms anyway and how long does one stay in the rpms? is the benefit enough to spen close to 2grand more? I guess thats up to the person. http://www.moddedmustangs.com/forums...oot-times.html

And have you noticed how those new stangs shine with the centri in comparison. I know they have a higher redline so that also helps with the centri blower but here are a few examples in this link http://www.moddedmustangs.com/forums...od-6-5psi.html


And the fact still remains that you can pick up a New centri blower and blower cams and come out alot cheaper($1000+ cheaper) in parts than the KB intercooled kit.
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Old 04-03-2012, 11:16 AM   #29
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Example of what im talking abt from a different thread here : or you could go the centri route plenty of power potential even with the entry level blowers but for Alot less than the inercooled kb setup like the guy in the link i posted in post #17. a vortech centri blower kit with a set of blower cams would still be about $1000 less in parts than the intercooled kb kit. example V1 S trim kit/complete kit $3,010 and mhs1 blower cams $595 thats $3605 total there in parts or you could go with hp292 cams for $450 and that would be $3460 total vs $4,999 for the complete intercooled kb kit. So there is a Possible as much as a $1,539 total cost savings in comparison and the budget one would include cams. Just a thought!!

And Im not trying to start a whole centri vs pd argument either OP no matter what type of blower you decide to go with I dont win or lose anything just dropped another option on you that could save you a possible $1500+ bucks thats money in or out of your pocket not mine ya digg?!! take care
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Old 04-03-2012, 12:01 PM   #30
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I paid 3200 for my ic Kb and that included everything minus the pump (because I already had from my previous blowers) when it comes to the money issue they can be had pretty f'n close in price its all about opinion and your style of driving..... I sold my old procharger setup for only $100 less than my Kb lol, the procharger I'd what funded the Kb
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Old 04-03-2012, 12:09 PM   #31
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Here is my 2 cents. I never had any of them , well a tvs on my cobalt. But any way this is how i feel. The pd blower creates more heat and eats up more hp than a centi does . I feel the the pd also eats up more mpg also. just my 2 cents. The pd might make a little bit more down below so what most races ( on the street) are from a roll any, the centi would be the best way to go and it will make more hp at the same boost .
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Old 04-03-2012, 02:02 PM   #32
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Quote:
Originally Posted by Gt04 View Post
I paid 3200 for my ic Kb and that included everything minus the pump (because I already had from my previous blowers) when it comes to the money issue they can be had pretty f'n close in price its all about opinion and your style of driving..... I sold my old procharger setup for only $100 less than my Kb lol, the procharger I'd what funded the Kb
There are deals out there and $3200 for a Brand New KB intercooled? If thats the case thats a good deal. Well I paid $2500(lucky fine on CL for my Vortech Kit and it was Brand New and it was a Complete kit also everything still wrapped up. Now from somewhere like summit or through a shop that same kit would be $3,014 for the same complete ready to go on the car kit. And there can be a huge difference between the cost of the two types depending on the type of centri you are looking at and that goes into another conversatin/debate.

http://www.moddedmustangs.com/forums...ower-cost.html
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Old 04-03-2012, 04:36 PM   #33
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Quote:
Originally Posted by scott4.6 View Post
Here is my 2 cents. I never had any of them , well a tvs on my cobalt. But any way this is how i feel. The pd blower creates more heat and eats up more hp than a centi does . I feel the the pd also eats up more mpg also. just my 2 cents. The pd might make a little bit more down below so what most races ( on the street) are from a roll any, the centi would be the best way to go and it will make more hp at the same boost .
I apologize for picking you apart, but your post is a great example of what I'm talking about when guys throw out opinion as fact.

PD blower has more heat. Not true when installed correctly.

PD eats up more hp than a centri. Doesn't matter, only the rwhp does - and that can be the same b/c it's limited by your bottom end. Either can make more power than the motor can take.

PD eats up more MPG Not true at all. In fact my PD blower gets better highway MPG than many of the N/A builds I've seen at equal hp numbers.

...Insert whole last sentence... Here's what you do, look at your RPM gauge when you are driving. See how much time you are between 1000 and 3500 RPM. Then look at how much you are 3500 and redline. Then ask which you spend more time in, and if that is where you need your power. More hp at the same boost is again not relevant because either can make enough power assuming you build them correctly. Sure the centri will make XXX power at 4000 RPM, guess what, the PD blower can make that number, but SOONER and keeps it. That means it's up and gone while you wait for your power to show up from a centri blower. Not something I'd personally want.
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Old 04-03-2012, 04:44 PM   #34
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This way we can stop taking opinions andd look into the technical articles and science behind forced induction types. Read below!


Adiabatic Efficiency

Because centrifugal superchargers utilize centrifugal forces to compress the air, centrifugal superchargers offer higher efficiency than positive displacement designs, both in terms power consumption and heat production. “Perhaps the simplest of all superchargers, the centrifugal can also be the most thermally efficient”[12]. The compressor-side of turbochargers are centrifugal designs as well, and also feature high efficiency.

Minimal Heat Transfer

Centrifugal superchargers are typically mounted off to the side on the front of the engine. Distancing the supercharger from the engine via a mounting bracket greatly reduces heat transfer from the engine to the supercharger during operation. By comparison, a twin screw or roots blower which is nested in the center (valley) of the engine, will absorb heat (heat soak) during operation due to thermal transfer from the engine block and heads. Elevated temperature levels in the supercharger directly influence discharge air temperatures that next enter the engine. Higher engine inlet air temperatures result in reduced power increases and an increased likelihood for engine damaging resulting from detonation within the cylinders

Power Output

Centrifugal superchargers add additional boost as the speed of the motor increases. This means the centrifugal supercharger will provide more horsepower at high engine speeds and less boost at lower engine speeds.


http://www.autos.com/aftermarket-par...more-efficient
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Old 04-03-2012, 05:06 PM   #35
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^ good article!! I would like a nice pd blower and will someday have one but personally I like my vortech right now. The power is there when I need it and I can basically choose when I wanna get into boost. I took
My brother for a ride yesterday and he said that it just keeps pulling harder as the rpm's keep climbing
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Old 04-03-2012, 06:44 PM   #36
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As said, lots of misinformation in here. Also stating that you will "wait for your centri blower to pick up " is very incorrect. A properly setup centri setup has instant boost at WOT. I run a 8 rib setup, over drive crank pulley and when I go WOT my boost gauge is instantly at 10-12psi and pulls to upwards of 20
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Old 04-03-2012, 07:08 PM   #37
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Ok so I have a few questions. If the centri have power at higher rpm, does that mean If just just slam on the pedal, I will have the power immediately since the rpm's will skyrocket? Also what if you DONT want to do gears like most people do. My 03GT Auto with stock gears is pretty slow. If I had a centri or a PD, would it even matter if I was WOT? I was set on KB becus i wanted to keep my stock gears and I figured i would have the power immediately anyways. I was under the impression that If i went with centri, If i happen to race, i would still lose becus If i kept the stock gears with an auto tranny i wouldnt have the power off the line and by the time the centri kicked in, the other guy would be well ahead of me anyways.

Damm this is confusing. I probably should just sit in a car with both types and judge for myself. Thanks and sorry to threadjack.

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Old 04-03-2012, 07:13 PM   #38
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Ok so I have a few questions. If the centri have power at higher rpm, does that mean If just just slam on the pedal, I will have the power immediately since the rpm's will skyrocket? Also what if you DONT want to do gears like most people do. My 03GT Auto with stock gears is pretty slow. If I had a centri or a PD SC would it even matter if when I took off, I just WOT? Im also considering both and was set on KB becus i wanted to not change my gears and I figured If i would have the power immediately. I was under the impression that If i went with centri, If i happen to race, i would still lose becus If i kept the stock gears and with auto tranny i wouldnt have off the line power and by the time the centri kicked in, the other guy would be well ahead of me anyways.

Damm this is confusing. I probably should just sit in a car with both types and judge for myself. Thanks and sorry to threadjack.
Haha it's fine I'm with you there I just might go procharger Ill be at high rpms anyway
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Old 04-03-2012, 07:25 PM   #39
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Haha it's fine I'm with you there I just might go procharger Ill be at high rpms anyway
And other options other than Porcharger is Vortech, and Paxton when it comes to centri blowers.
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Old 04-04-2012, 04:58 PM   #40
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Rockwell, that's good tech for the centri part - but it's off base for the PD info or misleading.

The thing I want to get people to understand is that if you set up the PD blower properly, there is not heat issue. People talking "heat" are using old out-dated info and keeping it alive by spreading that idea. That part is just pure crap. I've NEVER had heat soak issues on any of my PD applications - some of them weren't even intercooled. Today's IC units that come with 99% of the PD blowers take care of the heat issue. So in reality there is no heat soak, no increased IATS and NO LOSS OF PERFORMANCE.

There is no more risk of detonation with a PD than using a centri blower if you are tuned properly (which goes for all power adder applications).

The "power output" section is misleads as well. Of course it makes more psi when the engine goes faster. ALL superchargers do that. It's the physics of how they work. The PD just gives you your peak psi lower RPM range.
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