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Old 10-01-2007, 12:29 AM   #11 (permalink)
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Quote:
Originally Posted by HEMI4ME? View Post
I had 3 or 4 different exhausts, and 6 intakes. None of which did I see performance gains from. I have the SRT and from what I read or see or understand there is almost no gain from anyone. If I had it to do al over again, I would have done no exhaust (I am back to stock now) and I would have done the air intake, because I like the sound of it. It makes the car a lil more aggressive sounding, but not obnoxious on the inside.
thanks, it just shows you, the factory guys have it pretty dailed these days. like you said, it more for show (noise) then really helping the go!
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Old 10-01-2007, 12:50 AM   #12 (permalink)
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I have heard the same thing about the exhaust, the headers, and the heads tho too...

And numbers tell us that the Headers, heads and exhaust do make more HP. Obviously the Heads will make the most I would assume.
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Old 10-01-2007, 08:18 AM   #13 (permalink)
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I went from an average of 13.1X at 108mph to 13.0 at 110mph with the addition of the AFE Stage 2. Average gain across runs (Very similar density altitude, and traction/60 foot) was 1 full tenth and 1.5mph.

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Old 10-01-2007, 03:45 PM   #14 (permalink)
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I'd much rather have the brake vent than even 15 or 20hp. Brakes are my friends. Power, heck, even with the Quaife I still have more power than tyre in a lot of exits, so more power gets me nothing.

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Old 10-02-2007, 10:24 AM   #15 (permalink)
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Unless your rally racing on a track the break duck is overkill its not going to make that much difference in everyday sprited driving.
unless someone wants to prove me wrong with 80-0 or 100-0 stopping distence data????

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Old 10-03-2007, 01:41 PM   #16 (permalink)
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Well, the brake duct is to help cooling under heavy repeated use. It won't impact a single stopping distance.

However, at the same time, I can definitely say that this time of snorkel will have a negative effect at speed. The bend is tighter that 3:1 and if anything, at speed, will choke the air intake by creating a high pressure zone in front of the bend. Secondly, even if you relax the bend I don't believe that tubing is stong enough to impart any kind of pressurization to the airflow -- instead, it will expand and distort.

Honestly, it brakes down as three things:

1) you lose the brake duct
2) you gain the ability to draw water into the engine
3) you will lose power at high speeds.

None of them (aside from the water issue) are particularly huge numbers, but none of them are positive, either. And if you *any* brake issues with the left front I bet the dealership will blame them on lack of cooling.

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Old 10-03-2007, 02:46 PM   #17 (permalink)
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My dealer doesnt even know what side of the coin in up, let alone if you dont have teh brake ducts that didnt know exsits. LOL
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Old 10-11-2007, 06:31 PM   #18 (permalink)
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Someone asked about whether intakes add performance. On SRT's they do right out of the gate IIRC. On 5.7's they do, but only after you have also added a free-flowing exhaust and headers (we tested shorties but I'm sure long tubes count as well). There are two exceptions to this with respect to an intake adding power on an otherwise stock configured 5.7 LX: The AirHammer and the AFE Stage 2. Look at the MFO tests over at lxforums.com for more detail than you can possibly want to read. There have literally been hundreds of dyno runs testing intakes, as well as other components. About 100 of maybe 300 total dyno runs were on my car, which was one of the test vehicles.

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I'd much rather have the brake vent than even 15 or 20hp.
Oh my yes. Hey I never realized you were based in Sunnyvale. I was born/raised there. Went to Fremont High. Lived between Mary & Remington a block off El Camino.
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unless someone wants to prove me wrong with 80-0 or 100-0 stopping distence data????
That would be easy to do but also dangerous. As the brake fluid heats up your pedal starts to go to the floor thereby making the car ... not stop. As the rotors heat up your street pads will start wearing like freaking crazy. As in you can lose them in a couple of days given a steep mountain road descent. Brake ducts are a big part of making that not happen.

hmmm. one brake duct only. I wonder if you'll get uneven pad wear? There's a nasty thought.

I went to big brakes not due to my track use (which came later), but due to the mountain roads I was driving down. It was that or invest in a parachute.

If you don't drive the car for performance and are just a street cruiser I agree you'll never need the ducts.
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Old 10-11-2007, 06:34 PM   #19 (permalink)
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^^

I dont even use the brakes... I just pull the Chute
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Old 10-11-2007, 07:29 PM   #20 (permalink)
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CAI and Exhaust don't add performance.....I beg to differ. They may not add extra to what is already there but they definitely take out the restriction faced on a stock engine.

Mine bog stock dyno'd 242rwkw. With the addition of the CAI and zoomers cat back I am now at 265.5kw at the wheels. On an engine dyno yes it is probably still the same, but with the addition of these aftermarket bolts ons it has allowed me to free up some of the power that is there. I have dyno sheets if need be.
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