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03-18-2007, 05:39 PM
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#1
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Join Date: Jul 2006
Location: Hamilton, Nj/Glassboro, Nj
Posts: 799
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quick question
how much of a hp increase have people gotton from the following headers..shorty,mid,long tube
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03-18-2007, 05:50 PM
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#2
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2007 Member of the Year
Join Date: Oct 2004
Location: Seabrook, TX
Posts: 14,281
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what engine? what other mods? too many variables to put a concrete number on it.
__________________
WF=DF
Kommandant of the ACL (Anti Canadian League)
Quote:
Originally Posted by LTb1ow
Junk the pos, spend the money on beer, acquire headache.
Same result cept this headache doesnt last months.
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03-18-2007, 06:02 PM
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#3
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Join Date: Jul 2006
Location: Hamilton, Nj/Glassboro, Nj
Posts: 799
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follow up
94 lt1 z28 k&n filter kit magnaflow exhaust stainless steel cats. & soon to be catco high flow cat. so pretty much stock
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03-18-2007, 07:19 PM
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#4
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Join Date: Oct 2005
Location: Old Bridge Twp., NJ
Posts: 235
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My friend has a LT1 he just put Pacesetters on... I think he said it was around 14hp w/ his cutout. He doesn't have anything else done to it & no cats.
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'00 Z/28 - *SOLD* 383 Stroker, H/C, Full Boltons
'06 GSX1300R - Full Yoshi TRS Exhaust, PC3, TRE, 17/42 Setup, Sm Airbox Mod, R6 Throttle
Last edited by Mike Something; 03-18-2007 at 07:19 PM.
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03-18-2007, 11:06 PM
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#5
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I will beat you with a toaster!
Join Date: Sep 2004
Posts: 6,054
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I never re-dynod the (*EDIT* Mine is a 94 Z28) Camaro after the headers (even thought he baseline was not right due to Kasey breaking the Dyno) but when I installed my Edelbrocks, there was a nice difference! Seat of the Pants said it was definitely a nice gain.
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Last edited by bad64chevelle; 03-18-2007 at 11:07 PM.
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03-19-2007, 12:48 AM
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#6
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2007 Member of the Year
Join Date: Oct 2004
Location: Seabrook, TX
Posts: 14,281
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BTW why isn't this in a tech section 
__________________
WF=DF
Kommandant of the ACL (Anti Canadian League)
Quote:
Originally Posted by LTb1ow
Junk the pos, spend the money on beer, acquire headache.
Same result cept this headache doesnt last months.
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03-19-2007, 08:27 PM
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#7
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Join Date: Jul 2006
Location: Hamilton, Nj/Glassboro, Nj
Posts: 799
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sdgr
it is now 
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03-20-2007, 08:23 AM
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#8
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Sliderule / Moderator
Join Date: Oct 2004
Location: Catawissa PA
Posts: 2,294
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It depends allot on the car itself and brand of header as to what gains you'll see. Normally the shorties such as Hooker and JBA usally just bolt to the stock Y-pipe will only give minimal gains, 5-10HP, the Mids such as SLP and Mac come with a Y-pipe ( larger then stock ) and will give you about 15-20, some have seem more, but about 20 is a fair expectation. Longtubes and Y-pipe should be closer to 30HP or more, maybe up to 40, but that's rare.
If you want to stay 100% or close to legal then your options are limited. No Longtube header is actually legal because the cat. convertors must be relocated. Of the Mids I think only Edelbrock and SLP carry the CARB certification. I haven't been that impressed with the numbers from people using the edelbrocks on 4th gens? I ran Macs on my 93 and recently installed a set of Macs on a 97 and they are well built.
One other thing, when looking at Headers for a 4th gen header coating is very important. What ever headers you get make sure you get coated headers. Jethot coating is very popular because it is a decent coating for the price. There is better coating, but you will pay the price. Being VERY careful not to scratch the coating during the install is also key to the coating lasting.
JB
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93Z M6 Black: The 385 Lives! Supercharged, 3-core front mount intercooler, GTP heads, 3:73's, Street twin clutch, Jethot Longtubes, Mufflex 4" catback/spintech, S+W cage, Spohn Suspenion, Yada Yada Yada
1) Build it
2) Race it
3) Break it
4) Repeat!!!
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