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I found a dyno

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  #31  
Old 07-26-2005, 02:43 AM
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Rather than worry about the difficulty of this single install, I recommend you set a goal and then come up with a REAL plan on how to get there. What will this mod do for you? Do you even have an idea?

Peak HP and TQ mean nothing unless you're making them at the right point in the powerband FOR YOU. Do you know what the modification of your rockers will do and why? If no, that would be the question I would ask.

The question you need to ask yourself is "what do I want my truck to do?" Unless you spend a lot of time driving at the RPMs your truck requires to generate its peak HP & TQ (usually up there) your power under the curve is where you need to focus. I'll take a reasonable flat power and torque curve over peak numbers that do little more than give me bragging rights. A Honda S2000 makes great numbers as long as you keep the RPMs pegged. Let it drop out of the range of its VTEC, however, and performance is mediocre. Mazda's RX8 is in the same "keep it boiling" situation. Power below the curve is dismal.

If you want a good example of a vehicle that makes good power under the curve, look at BMW. Relatively low HP/TQ numbers when compared to the competition, but performance numbers (0-60, 0-100 and 1/4 mile) are usually comparable.
 
  #32  
Old 07-26-2005, 03:33 AM
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I want something that when Im on the road and decide to open it up I would like a feeling of real power, I know I drive a heavy truck with only a V6 but I think I can do better with what i have. Im not looking to ROAST the tires although that would be nice. Im not looking for a 160mph hot rod but i would like to do 120 if i want to and surprise some people on the way as long as it isnt a TDPS trooper. Or to not get smoked (2 bad) by an 02 Acura, I wouldnt mind holding my own when a QC 4.7L comes blowin by me. Thats what i want so tell me how to get it.
 
  #33  
Old 07-26-2005, 02:27 PM
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Default RE: I found a dyno

How much does your truck weigh? I see quad-cabs that weigh approx 4000 lbs. How much weight do we need to overcome? Don't guess, if you don't know have a reasonably accurate idea, put it on a scale.
 
  #34  
Old 07-26-2005, 11:25 PM
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Default RE: I found a dyno

my quad cab weighs 5000.
 
  #35  
Old 07-26-2005, 11:43 PM
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Default RE: I found a dyno

GVW of my truck according to the sticker is 5300 #'s
 
  #36  
Old 07-27-2005, 12:40 AM
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Default RE: I found a dyno

GVW is the maximum your truck can carry including cargo, passengers, fluids, etc. It is NOT the weight of your truck. I figure your truck to come in somewhere around 4300 - 4600 pounds, given that the quad-cab with the V8 comes in close to 5K.

Having said that, forget chasing that Acura. The Dak V8 making 250HP runs to 60 in 8.5 and through the quarter at nearly 17 seconds. Stopping from 70 was even more scary - 229 feet.

In short, the truck isn't made to go fast, and if it does go fast it needs something done to the brakes to stop it. My G stops from 70 almost 100 feet shorter to give you some point of reference.

Making your truck perform is gonna cost you some serious bucks, unless you're just playing at it. To even get into the ballpark of chasing Snowman, or any other upmarket sport sedan for that matter, you'll need AT LEAST 400HP, and even then you're going to be lacking. The ROUSCH Supercharged F-150 weighs in slightly heavier than you, has 405HP, and runs to 60 in 6.7 and through the quarter in 14.9. Respectable numbers for a truck, but the Acura will eat it alive - my estimate on Snowman's Acura, somewhat based on what the G can do, is 6.1 to 60 and around 14.4 in the quarter.

Your truck needs internals, forced induction, a clutch and tranny that can handle it, suspension, and brakes to bring it down from speed.

You want to beat Snowman? Trade your truck in on an SRT-4 and chip it.
 
  #37  
Old 07-27-2005, 01:10 AM
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Default RE: I found a dyno

Another example:

Breaking onto the scene in '93 (and now in its second generation), the SVT almost needs drag slicks to harness power from the blown 5.4L Triton V-8 (rated at 380 hp with 8 psi of boost and boasting a power-to-weight ratio of 12.3:1) to the rear wheels. With the stock Goodyear Eagle Eagle F1 GS rubber (P295/45ZR18) straining for grip, easing into the throttle, then mashing it to the floor garnered the best time of 5.24 to 60 and 13.75 sec at 101.56 mph for this 4670-lb truck.

.....

and with the gearing in that truck, he's sucking at the top end. There is a guy in my hangar that has one (his is a 2002 - he just traded it on an 05 Cummins that matches mine...) and I walked him badly above 110. Also, he gets 12 MPG driving easy... My power to weight is roughly 12.1:1.
 
  #38  
Old 07-27-2005, 01:25 AM
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Default RE: I found a dyno

D@mn thats awful, so basically im stuck then unless i drop all of my per diem(if I go) into it huh. Oh well then I think on that note I will put in the headers, maybe the rockers and the throttle body(50mm) and be done with it. It sure would have been nice to blow Snowman away in something other than another 4 door car lol. (SRT-10 would come in handy lol) Although KRC performance makes a supercharger for my application which I think adds about 120 RWHP.
 
  #39  
Old 07-27-2005, 05:41 AM
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Default RE: I found a dyno

The 93 Lightning wasn't a supercharged 5.4, that came along much later (99 or so). The 93 had a 351 windsor that might have had a better cam or something. The 93 was basically a 1/2 truck with special graphics and paint scheme.
The newer lightnings started with 360hp and 440 lb-ft but that got bumped up to 380/450 in around 2000
 
  #40  
Old 07-27-2005, 05:42 AM
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Default RE: I found a dyno

PS my 5.9 4x4 is faster than a vw bug. I think it was a turbo. found that out tonight getting on the freeway.
 


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