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Cam or s/c

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Old Jun 29, 2011 | 07:02 PM
  #21  
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Originally Posted by BolletuH
Idiots... any block can handle a certain amount of psi from any charger especially a supercharger. In my honest opinion a supercharger is loads more efficient than a turbo, but that's another story all its own. Anyways a block has a safe psi range, and as long as you stay below that range you are fine (max psi). Also when you are driving normally you aren't producing more than a few psi as compared to the max which is applied only at WOT. If you drive a vehicle like you stole it a supercharger or not the engine will be completely ruined before too long.
Wow. Ok well its true every part in an engine has its limits. Our rods for example are rated at 400hp @ 6000rpm. To make more power than that you have to back away from the 6000rpm mark or replace the rods and pistons. I'm at 600hp but my shift points are at 5400rpm and my soft rev limiter starts at 5600rpm just in case. As efficient as the Whipple is it cannot match the efficiency of a turbo. A turbo does not require HP to turn. A blower does. Anywhere from 50hp up depending on the blower. A blower however can produce boost much quicker than a turbo. A twin screw for example can produce full boost at 2000rpm. No one else has that ability. Also under normal driving no boost is made. Bypass valves whether electric or vacuum operated prevent this. Boost is made based on engine load. Similarly a turbo only produces boost when enough volume of air comes through the exhaust to spool it up.

Last edited by Blown Ford; Jun 30, 2011 at 12:55 PM.
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Old Jun 30, 2011 | 12:35 PM
  #22  
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Crap, blown just freaking full of knowledge. Thanks for more heads up. That makes me want a s/c worse. Lol
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Old Jun 30, 2011 | 12:56 PM
  #23  
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Originally Posted by 429 boss mustang
Crap, blown just freaking full of knowledge. Thanks for more heads up. That makes me want a s/c worse. Lol
Haha he makes it sound so nice doesn't he? I always look for threads on this topic to see what he says cuz I want to SC my truck so bad!
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Old Jun 30, 2011 | 01:36 PM
  #24  
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Originally Posted by Blown Ford
Wow. Ok well its true every part in an engine has its limits. Our rods for example are rated at 400hp @ 6000rpm. To make more power than that you have to back away from the 6000rpm mark or replace the rods and pistons. I'm at 600hp but my shift points are at 5400rpm and my soft rev limiter starts at 5600rpm just in case. As efficient as the Whipple is it cannot match the efficiency of a turbo. A turbo does not require HP to turn. A blower does. Anywhere from 50hp up depending on the blower. A blower however can produce boost much quicker than a turbo. A twin screw for example can produce full boost at 2000rpm. No one else has that ability. Also under normal driving no boost is made. Bypass valves whether electric or vacuum operated prevent this. Boost is made based on engine load. Similarly a turbo only produces boost when enough volume of air comes through the exhaust to spool it up.
I was on your side... Like I said superchargers are better IN MY OPINION. I hate turbo lag and inefficiency and believe superchargers are honestly better for Gasoline engines, but once again that is in my own opinion. I also agree with you that at a certain RPM no boost is created, but it will kick in before WOT, correct? I'm not trying to be a smartass and I appreciate the information on boost.
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Old Jun 30, 2011 | 02:35 PM
  #25  
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Originally Posted by BassAckwards

Haha he makes it sound so nice doesn't he? I always look for threads on this topic to see what he says cuz I want to SC my truck so bad!
X2.....he is a wealth of knowledge and should be compensated by Whipple for all the info. I plan on going Whipple (especially if they go on sale again) or Saleen.

Last edited by nrceptr; Jun 30, 2011 at 02:38 PM.
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Old Jun 30, 2011 | 09:43 PM
  #26  
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I'm already sold on the whipple. Just got to wait a little bit. Lol
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Old Jun 30, 2011 | 09:58 PM
  #27  
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I loved my whipple I had on my chevy 5.3 But the next engine i build will be a turbo.
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Old Jun 30, 2011 | 10:22 PM
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Well if we are gonna argue turbo vs s/c let me throw in my 2 cents... Nitrous better than both.. Cheaper, easier to set up, easier to tune and less wear and tear on engine parts since you only use it when wanted. Superchargers always have drag on the engine creating load even when not in use... Turbos are hard to make efficient on most applications especially with universal kits since exhaust gas does spin the turbo but it is actually the heat that really gets it going... Nitrous dry shot will give you the same gains of a blower or turbo for about 1/4 to 1/3 the cost. It may be cheating but im a cheap ***....
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Old Jun 30, 2011 | 10:48 PM
  #29  
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Originally Posted by BolletuH
I was on your side... Like I said superchargers are better IN MY OPINION. I hate turbo lag and inefficiency and believe superchargers are honestly better for Gasoline engines, but once again that is in my own opinion. I also agree with you that at a certain RPM no boost is created, but it will kick in before WOT, correct? I'm not trying to be a smartass and I appreciate the information on boost.
I have a love hate relationship with turbos. I love them for the boost and not robbing power from the crank but I hate the lag. And yes it is true that some boost can be made without wide open throttle. It just all depends on engine load and that's the beauty of it. It's there when you need it or want it. The Roush blowers use an electric bypass valve that plugs in where your secondary butterflies do and with their tune the throttle must be open to 75% before boost is made. It sucks cause you are already driving the **** out of it before you get boost. This of course can be changed in a custom tune. Whipple uses a vacuum powered bypass and I love it. Generating or not generating boost is now completely up to your left foot. The truck feels amazing at any speed and towing is a breeze.

As for Whipple paying me...don't I wish lol. I recommend them cause after months of research and homework that's what I chose based on what I learned. The one flaw in the Whipple kit is that it uses our stock 24lb injectors. Now keep in mind Ford approves this seeing as how they make the tune for Whipple and this is a Ford Racing/Whipple blower. As I stated earlier its a horrible idea. It runs the injectors at 90-100% and runs the fuel pump very hard to bring rail pressure up to 67-70psi at wot. Again all approved by Ford. I even called Ford to speak with them about it. But then again they approved the cam phasers and these cheap *** injectors to start with. It's an easy fix though. A set of 39lb injectors can be had for $250 and get a custom tune. You will get 30 more HP out of it this way and you will be much happier. Trust me tunes sent from any of the blower companies suck.
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Old Jun 30, 2011 | 11:05 PM
  #30  
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Originally Posted by JeffM8810
Well if we are gonna argue turbo vs s/c let me throw in my 2 cents... Nitrous better than both.. Cheaper, easier to set up, easier to tune and less wear and tear on engine parts since you only use it when wanted. Superchargers always have drag on the engine creating load even when not in use... Turbos are hard to make efficient on most applications especially with universal kits since exhaust gas does spin the turbo but it is actually the heat that really gets it going... Nitrous dry shot will give you the same gains of a blower or turbo for about 1/4 to 1/3 the cost. It may be cheating but im a cheap ***....
Lmao! Less wear on the motor. I think not. And no you can't make the same power on these motors as you can with nitrous. I'm at 600 HP. Even an 8psi kit with no other mods will give you 470hp. You cannot add a 300 shot of nitrous to one of these motors or even a 200 or 250 would blow it sky high. Not to mention you won't have the power all the time and at all throttle positions. And dry kits are dangerous as hell. Great way to blow off an intake. Not bashing it. Just saying you can't tow with it or enjoy the additional power everyday like you can with forced induction. I like nitrous but not on a truck.

As for drag on the motor all the time...blowers have come a long way. The Whipple and Saleen create a 1 HP draw when not boosting. The Roush and Edlebrock blowers are just a little higher along with the centrifugal blowers. I hardly call that putting load on the motor.
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