what can a 5.4 3v handle

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Old Feb 1, 2012 | 12:10 AM
  #16  
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I guess I think of it completely different. Making a pass down the track at 450 rwhp and towing 9K pounds up a 15 percent grade for 45 miles are two different animals.

Your truck might be fine at 500rwhp at the track and be questionable towing 9K pounds all the time at 400rwhp. Many, many, variables here.

Depends what you use your truck for and how you use the power.
 
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Old Feb 1, 2012 | 12:18 AM
  #17  
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Exactly as I stated to him in my earlier post. But 400rwhp should be fine for him in most scenarios, doesn't look like he's planning to squeeze the power out of it.
 
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Old Feb 1, 2012 | 07:51 AM
  #18  
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Originally Posted by sbchris
I guess I think of it completely different. Making a pass down the track at 450 rwhp and towing 9K pounds up a 15 percent grade for 45 miles are two different animals.

Your truck might be fine at 500rwhp at the track and be questionable towing 9K pounds all the time at 400rwhp. Many, many, variables here.

Depends what you use your truck for and how you use the power.
The key for towing is having a good engine cooling and intercooler system. With that said, I used to tow cars with my truck all the time with the vortech on it.
 
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Old Feb 1, 2012 | 11:41 AM
  #19  
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If its a custom turbo set up the only place to mount a turbo is not under the truck,ill see if I can find pics of a local truck with a front mount turbo. The only reason I would go turbo is to build an all out race truck other than that a twin screw s/c will make all the pwr you want and more,also easier installed than a turbo and also easier to find a tunner for it. I think with a 10 psi u will be happy and at a safe point if tuned right.
 
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Old Feb 1, 2012 | 03:23 PM
  #20  
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Originally Posted by javier garcia
If its a custom turbo set up the only place to mount a turbo is not under the truck.
Let me restate exactly what i meant. The only reasonable place without ALOT of custom fabrication and time involved is an under the cab mount, otherwise STS would have designed their kit differently. Nothing is impossible, I didn't mean to say it couldn't be done, but who in their right mind would do it anyway.
 
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Old Feb 1, 2012 | 11:54 PM
  #21  
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Who in their right mind would do it? Do u know what the fastest trucks use for power adder? Front mount turbo (turbos) so for your question who would do a front mount turbo well johnny lightning,flaco owner of hay hauler, ss this,just to name a few all 8sec trucks except ss thuis a 9sec ligtning soon to be in the 8s if u don't know who they are look them up on YouTube. To me a front mount turbo is the best way to make the most power over any kind of suoercharger.
 
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Old Feb 2, 2012 | 12:28 AM
  #22  
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for the record, i will not be towing more than a 2500lb camper and i am not looking for all out racing. I just want a nice boost in power with a twist. I am also not wanting to go ***** out in power. I have a 96 blown cobra for just that matter. And yes it is street worthy so i dont have to tow it. In the future i will make it a full race car but i have a diesel truck to do my dirty work. (work truck) .

Does anyone think a turbo can get me 400rwhp at 7psi or should i just go my max at 9psi? I am used to superchargers and this will be my first turbo.
 
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Old Feb 2, 2012 | 07:32 AM
  #23  
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7psi with a well thought out kit and intercooler should put you in the 370-390 range. If your going to do it go 9-12 psi. Not gonna hurt a thing and the engine won't be experincing anywhere near the stress. Which means it should blow and you shouldn't need a fuel system.
 
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Old Feb 2, 2012 | 09:53 AM
  #24  
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It should blow??!! lol

I agree with twinskrewd, if your going turbo you should up the boost a little! Sounds like a fun project though!
 
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Old Feb 2, 2012 | 11:33 PM
  #25  
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should go 9-12! Well if you say so. Lol kinda the direction i was heading but still want to be conservative. Longevity wise. So your saying it will blow in a good way, not be too stressfull on the engine and my fuel system will be adequate? Assuming i use larger injectors right?
 
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Old Feb 2, 2012 | 11:57 PM
  #26  
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It was a typo, I believe he meant to say it should not blow. Unless he was making a point I missed. You really shouldn't have any issues with that range of boost, remember the boost numbers we are throwing out will not determine the end rwhp your truck is going to make. Get it setup to run roughly that much boost, then adjust from there to achieve the rwhp you desire.

I run 12lb on a completely stock fuel system with 39lb injectors. I was surprised to find out i didnt end up needing the Boost a Pump that now collects dust. Lol I am no turbo expert though so it may be different for you. But yes larger injectors will be a must regardless.
 
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Old Feb 3, 2012 | 07:16 AM
  #27  
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Yes it was a typo and I corrected it. Sorry. You will be fine with that kind of boost. We SC'd guys running 10-12psi are making 420-450+ rwhp and thats with a blower thats chewing up 60-100hp. Your Turbo won't do that. So at say 10psi you should easily reach your desired rwhp and without quite as much stress.

Blackout, how in the world do you not need the boost a pump? What percentage of capacity are you at with the stock pump?
 
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Old Feb 3, 2012 | 09:34 AM
  #28  
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heck even I am running a boost a pump just to be on the safe side and I am pushing 12lbs with 39lb injectors. But it looks like when I do my timing chain in a couple of weeks I will be installing some 60lb injectors and my custom dual fuel pump setup and having steigmeier put the smallest pulley he can on my blower that will not over spin it with my 8lb lower. I want to see max boost and get as close as I can to that 500rwhp mark as I can.
 
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Old Feb 3, 2012 | 10:05 AM
  #29  
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Y'all have to remember he has a Vortech, slightly different then our PD blowers.
 
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Old Feb 3, 2012 | 10:06 AM
  #30  
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Originally Posted by Huitt24
heck even I am running a boost a pump just to be on the safe side and I am pushing 12lbs with 39lb injectors. But it looks like when I do my timing chain in a couple of weeks I will be installing some 60lb injectors and my custom dual fuel pump setup and having steigmeier put the smallest pulley he can on my blower that will not over spin it with my 8lb lower. I want to see max boost and get as close as I can to that 500rwhp mark as I can.
Do it!


I'm drooling at building my engine now... 650rwhp on blower 93 pump and another 150 direct port on top of that sounds mighty sexy.
 
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