What gains are you seeing with a shorty header and other mods?

the_underclassman · 07-26-2010, 08:12 PM

Hey guys, I'm just wondering if I should keep this shorty header I have and use it.. I'd have to fabricate a downpipe for it since I have a ZX2.
First off, what are you modded zetec guys experiencing with a shorty header and a HFC or ORP? I already have a 2.5" exhaust and Iceman intake, so any header would benefit.. I'm just wondering if a shorty w/orp would be relatively close to the same in performance as a Kamikaze 4-2-1.. (technically about the same design). I don't have any education in flow, so if you feel my logic is off, please constructively help me understand.

Thanks,
Aaron

mlbbaseball · 07-27-2010, 12:27 AM

kamakazi will prolly flow better, but you'll see a 3-4 whp gain w/ the shorty and HFC

badass3 · 07-27-2010, 02:13 PM

i would go with a race header as you will get more high end HP and some low tq. the shorty headers keep good low but dont flw as well up high

***03OrangeSVT*** · 07-27-2010, 03:34 PM

^^^^ Actually LONG tube headers give you down low (and up top as well)

Shorty headers are pretty.... but do almost NOTHING for performance.

keezer · 07-27-2010, 03:51 PM

well ill soon post some pics up off my "long" 4-1 types and a video clip...

pipercross panel filter, 4-1 with decat downpipe, 2.25 mid section all thru to a 3.5 inch backbox so hopefully should sound nicer...not ricer

badass3 · 07-27-2010, 03:53 PM

i thought true long tubes gave just a little down low but shorty with HFC gave better down low but lesss up top and the SVt was best of both worlds lol

Hogdog · 07-27-2010, 04:34 PM

U.K 1.8 (virtually the same as the U.S 2.0 but smaller capacity)

Standard - 115bhp and 114lb/ft.

OBX shorty and Miltek exhaust - 120bhp and 126lb/ft on a very reliable dyno.

Shorties are supposed to give more power at high revs than long tubes, I've not seen anything to confirm that though.

the_underclassman · 07-27-2010, 05:40 PM

Hmm.. this is interesting.

badass3 · 07-27-2010, 10:38 PM

go long tube!!!! shorty will not out flow them. it is simple physics. air wants to move in the path of least resistance. it does not want to go through a bunch of loops.

Randori · 07-29-2010, 08:12 PM

Quote:

Originally Posted by badass3

go long tube!!!! shorty will not out flow them. it is simple physics. air wants to move in the path of least resistance. it does not want to go through a bunch of loops.

Unless those loops are expertly tuned loops...

I switched to the SVT header after using a 4 into 1 race header mainly to pass emissions. Assuming you are looking into using a shorty in order to use a HFC, I would just go straight to the SVT. It is simply the best header for the Zetec motor because it was actually ENGINEERED for the motor. Real gains everywhere. I didn't believe that the twisty SVT could out perform the HUGE tubes in my race header until I took the car off the lift and drove around the block.

the_underclassman · 07-31-2010, 12:25 AM

The only issue/stipulation I have with using a SVTF header is that I need to modify a bit of my car to get it to fit.. the trans crossmember, the radiator, the dipstick tube, and other things.. I'd also end up buying some header wrap so I don't melt the rad fan.

Kaotik_kevin · 07-31-2010, 01:08 AM

I have a 01 ZTS and finally have a little money to spend!
i dont have much( just a few hundered).
I was just wondering what is the best way to start moding my car get a good start on it. Ive been told to start with an air intake, but i want to hear what others say as well.
so, pleaseee give me some feedback. its greatly appreciated!

kevin

07-26-2010, 08:12 PM	#1
the_underclassman Focus Enthusiast Join Date: Jun 2009 Fan#: 66214 Location: Mesquite, NV What I Drive: '98 Blue & '99 Zinc yellow S/R zx2 Posts: 175 FF Reputation: 1 Buy-Sell-Trade Rating: (5)	What gains are you seeing with a shorty header and other mods? Hey guys, I'm just wondering if I should keep this shorty header I have and use it.. I'd have to fabricate a downpipe for it since I have a ZX2. First off, what are you modded zetec guys experiencing with a shorty header and a HFC or ORP? I already have a 2.5" exhaust and Iceman intake, so any header would benefit.. I'm just wondering if a shorty w/orp would be relatively close to the same in performance as a Kamikaze 4-2-1.. (technically about the same design). I don't have any education in flow, so if you feel my logic is off, please constructively help me understand. Thanks, Aaron __________________ Turbo ZX2

07-27-2010, 12:27 AM	#2
mlbbaseball SNOWMOBILING 4 LIFE Join Date: Feb 2008 Fan#: 53541 Location: Detroit MI, and Houghton MI, (college), MI What I Drive: 01 zx3 s2 x2, 02 SVT, Jeep Cherokee Posts: 7,830 FF Reputation: 36 Buy-Sell-Trade Rating: (56)	kamakazi will prolly flow better, but you'll see a 3-4 whp gain w/ the shorty and HFC __________________ SALE: 3 JRSC zetec SC's, Rally skid plate, s2 spoilers, Tires, Headlights, 65 mm tb duratec (pending), my LAST SVT JRSC w/ BBK and tuning voucher, 3" MAF, 2 zetec/svt turbo kits, built zetec/svt bottom end! PM me

07-27-2010, 02:13 PM	#3
badass3 NEED DIRECTION Join Date: Mar 2008 Fan#: 54096 Location: Louisville, KY What I Drive: 2001, Pitch Black, ZX3 Posts: 2,497 FF Reputation: 7 Buy-Sell-Trade Rating: (11)	i would go with a race header as you will get more high end HP and some low tq. the shorty headers keep good low but dont flw as well up high __________________ Zetec Crew #270 ATXF #49 MODERATOR FOR FOCUSXTREME

07-27-2010, 03:34 PM	#4
*03OrangeSVT* vvvv My Poker Face Join Date: Feb 2005 Fan#: 19169 Location: Piketon, OH What I Drive: 1 BADASS Turbo'd SVT Posts: 10,950 FF Reputation: 149 Buy-Sell-Trade Rating: (4)	^^^^ Actually LONG tube headers give you down low (and up top as well) Shorty headers are pretty.... but do almost NOTHING for performance. __________________ 2003 SVT Focus Comp Orange #3474... 362whp/316wtq 2003 SVT Focus Screamin Yellow #1841 VINTAGE 1977 BMW R100/7 ...... Full Dresser 2006 Yamaha Royal Star Tour Deluxe ... Full Dresser I make POWER while you make EXCUSES!!!!!

07-27-2010, 03:53 PM	#6
badass3 NEED DIRECTION Join Date: Mar 2008 Fan#: 54096 Location: Louisville, KY What I Drive: 2001, Pitch Black, ZX3 Posts: 2,497 FF Reputation: 7 Buy-Sell-Trade Rating: (11)	i thought true long tubes gave just a little down low but shorty with HFC gave better down low but lesss up top and the SVt was best of both worlds lol __________________ Zetec Crew #270 ATXF #49 MODERATOR FOR FOCUSXTREME

07-27-2010, 03:51 PM	#5
keezer Focus Jr. Enthusiast Join Date: Jun 2010 Fan#: 76231 Location: melksham, United Kingdom What I Drive: silver 5 door 1.8 zetec Posts: 29 FF Reputation: 1 Buy-Sell-Trade Rating: (0)	well ill soon post some pics up off my "long" 4-1 types and a video clip... pipercross panel filter, 4-1 with decat downpipe, 2.25 mid section all thru to a 3.5 inch backbox so hopefully should sound nicer...not ricer

07-27-2010, 04:34 PM	#7
Hogdog Focus Rookie Join Date: Jan 2010 Fan#: 72190 Location: Essex, United Kingdom What I Drive: 1.8 2000 MK1 Posts: 12 FF Reputation: 1 Buy-Sell-Trade Rating: (0)	U.K 1.8 (virtually the same as the U.S 2.0 but smaller capacity) Standard - 115bhp and 114lb/ft. OBX shorty and Miltek exhaust - 120bhp and 126lb/ft on a very reliable dyno. Shorties are supposed to give more power at high revs than long tubes, I've not seen anything to confirm that though.

07-27-2010, 05:40 PM	#8
the_underclassman Focus Enthusiast Join Date: Jun 2009 Fan#: 66214 Location: Mesquite, NV What I Drive: '98 Blue & '99 Zinc yellow S/R zx2 Posts: 175 FF Reputation: 1 Buy-Sell-Trade Rating: (5)	Hmm.. this is interesting. __________________ Turbo ZX2

07-27-2010, 10:38 PM	#9
badass3 NEED DIRECTION Join Date: Mar 2008 Fan#: 54096 Location: Louisville, KY What I Drive: 2001, Pitch Black, ZX3 Posts: 2,497 FF Reputation: 7 Buy-Sell-Trade Rating: (11)	go long tube!!!! shorty will not out flow them. it is simple physics. air wants to move in the path of least resistance. it does not want to go through a bunch of loops. __________________ Zetec Crew #270 ATXF #49 MODERATOR FOR FOCUSXTREME

07-31-2010, 12:25 AM	#11
the_underclassman Focus Enthusiast Join Date: Jun 2009 Fan#: 66214 Location: Mesquite, NV What I Drive: '98 Blue & '99 Zinc yellow S/R zx2 Posts: 175 FF Reputation: 1 Buy-Sell-Trade Rating: (5)	The only issue/stipulation I have with using a SVTF header is that I need to modify a bit of my car to get it to fit.. the trans crossmember, the radiator, the dipstick tube, and other things.. I'd also end up buying some header wrap so I don't melt the rad fan. __________________ Turbo ZX2

07-31-2010, 01:08 AM	#12
Kaotik_kevin Focus Jr. Enthusiast Join Date: Apr 2010 Fan#: 74768 Location: Elk Grove, CA What I Drive: 2001 Green ZTS Posts: 32 FF Reputation: 1 Buy-Sell-Trade Rating: (0)	i need some help starting out. I have a 01 ZTS and finally have a little money to spend! i dont have much( just a few hundered). I was just wondering what is the best way to start moding my car get a good start on it. Ive been told to start with an air intake, but i want to hear what others say as well. so, pleaseee give me some feedback. its greatly appreciated! kevin

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