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Joined: Sep 2003
Posts: 148
CEG\'er
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OP
CEG\'er
Joined: Sep 2003
Posts: 148 |
OK. I am getting a custom 2.5 to 2x2.25 exhaust built with
Gutted pre-cats, Optimized-jethot-coated y-pipe, hiflo cat., hi flo res, into 2 magnaflow mufflers.
Anyone have a good estimate as to what my HP gains will be?
Any input would be appreciated.
1998 Black SVT (#469 on 4-24-1997)
Custom Cougars CAI
Custom Magnaflow exhaust
opt. jet-hot-coated Y-pipe
B&M short shifter
Stazi Rotor & Brake kit
17x7 Enkei RO56's
Mirco Splitter
15.45 @ 89.03 (Stock /w worn clutch)
172HP 164TRQ (stock)
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Joined: Sep 2000
Posts: 9,602
Hard-core CEG'er
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Hard-core CEG'er
Joined: Sep 2000
Posts: 9,602 |
Between 1 & 10.
Most of it from the Y-pipe if it's done well.
Very little from the cat-back if using crush bent piping. (i.e. what a exhaust shop would build)
You'd get better gains optimizing the SVT exhaust then replacing it with POS crush bent piping. That's the truth!
2000 SVT #674
13.47 @ 102 - All Motor!
It was not broke; Yet I fixed it anyway.
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Joined: Jun 2003
Posts: 200
CEG\'er
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CEG\'er
Joined: Jun 2003
Posts: 200 |
It will be the sound you will notice more than the power. Demon brings up a good point about the pipe bending, last system I did I ordered mandrel bent sections from a local speed shop and welded it all up.
98 Contour SE 3.0L 5-speed
SCT PRP, Gutted IMRC's, Fidanza Flywheel, Race Ported 2004 3.0L Oval Port, Zex 125hp shot, 70mm Mustang TB, 42Lb injectors,Walbro 255 pump, Traction Bars, Zeitronix wideband o2, lots of little things, 10,000K HID's!! 
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Joined: Sep 2003
Posts: 148
CEG\'er
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OP
CEG\'er
Joined: Sep 2003
Posts: 148 |
lol Demon, not trying to rag on you but do you have a fetish with crush bent systems? I personally don't know many people that would be into this type of car(SVT)/modding that would not know that crushed bent piping is horrible for flow. So when i see people talk about a custom system, i assume they are speaking about using manderal bends so flow is same all the way through the turns. Just saying this because both posts i made in past few days, even the first one when i said in my post i was using manderal bends, you automatically jumped on the crush bent piping issue. Common, give a guy some common sense about aftermarket modding.
1998 Black SVT (#469 on 4-24-1997)
Custom Cougars CAI
Custom Magnaflow exhaust
opt. jet-hot-coated Y-pipe
B&M short shifter
Stazi Rotor & Brake kit
17x7 Enkei RO56's
Mirco Splitter
15.45 @ 89.03 (Stock /w worn clutch)
172HP 164TRQ (stock)
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