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08-24-2004, 10:57 AM | #1 |
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Join Date: Mar 1999
Location: dallas, tx United states
Posts: 20
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What is the performance difference ?
what is the performance difference between equal length shorties and regular shorties as far as performance goes?
just trying to get some more hp from this 86 gt.
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Desperado |
08-24-2004, 11:07 AM | #2 |
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Join Date: Apr 2001
Location: Staging lane
Posts: 4,337
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Equal lengths outflow un equal lengths by a small margin.
When I say a small margin, I mean small
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92' LX-Big brakes, Lots and lots of suspension, GT40X heads, Ported cobra intake, stock cam, Vortech SC trim. 00' Lightning-Stock 88'CRX-13 second ego killer |
08-24-2004, 11:50 AM | #3 |
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Join Date: May 1999
Posts: 2,241
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If you want max. HP gain then I would go with a setr of long tube headers.
If you're already set on buying shorties, then I would recommend the unequal length headers because getting to the header bolts will be much easier.(or is it the plugs?) I forget now but getting to one of those will be a bitch to get to with the equal length.
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'82 GT 351W (.060)Comp Cams 274* Extreme Energy cam, ported & polished heads w/ 1.94/1.60 valves 10.3:1 flat top pistons,stealth intake, Mallory dizzy,Holley 750dp carb, BBK shorties,Flowmaster exhaust,C-4 with 3700 stall converter, B&M pro shifter,8.8 rear, 4:10's, subframes, electric fan, powermaster alternator, 4 core radiator. |
08-24-2004, 12:05 PM | #4 | |
Gimme a Drink!
Join Date: Dec 2002
Location: NYC
Posts: 694
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Quote:
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1990 GT,stock T-5,K&N w/o air silencer,March underdrives,FMS wires,timing@14*,PA Perf 130amp alt,Steeda Tri-Ax Shifter,Steeda adj quadrant/clutch cable/firewall adj,Centerforce II clutch,o/r x-pipe,Magnaflow SS catback,g-load brace, subframes,Bilstein struts/shocks,Autometer gauges, 136k and running strong! |
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08-24-2004, 02:06 PM | #5 | |
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Location: San Francisco, CA
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Quote:
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08-24-2004, 03:07 PM | #6 |
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Join Date: Aug 2002
Location: Rochester
Posts: 553
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I had bought equal length shorties and ran them for a year, had nothing but problems with plug wires burning and installation was a B*tch. Not worth the hassle, I got rid of them and went with MAC ceramic coated unequals.. I didn't see a single power difference or mileage, and they look great either way and plugs fit nice and wires don't burn. Definetly screw the equals.. Not worth the hassle.
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08-25-2004, 08:15 AM | #7 |
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Join Date: Sep 2002
Location: Boston
Posts: 592
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I like my equals and while they did change the exhaust tone a tad bit, I cannot say that the performance changed any. I occasionally toast a wire before I tied them together and the passenger side plugs require some acrobatics to get in but nothing spectacular. How often does one change plugs anyway? Not often enough for that extra 2 minutes for the 2 trouble plugs on one side to really matter _that_ much. A tiny performance gain is still a gain.
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91 GT Carb conversion, holley 600 double pumper, edelbrock performer intake, FMS "C" drop springs, march 1000 underdrive pullies, crane 1.7 roller rockers, GT-40P headers, bassani x pipe, american thunder catback, FMS 4.56's, msd aL6, trunkmount battery, A/C eliminator kit, 3000 stall tci streetfighter, AOD with transgo kit, A+ servo, 300M hardened lockup shaft, kevlar bands and 28,000 gvw trans cooler, 3 core radiator, 300 lbs stripped with a full interior |
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