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January 26th, 2012, 09:02 PM
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#1 |
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Regular
1996 Mustang GT Convertib
NA
Join Date: Mar 2010
Location: Georgia
Posts: 68
 iTrader: 0 reviews
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Almost successful DIY NPI porting
I have recently did a porting job on a set of npi heads for my car. I have just picked them up from the shop from getting it flowed. I have a little more work to do but I am over all satisfied with my first test. Some of the numbers fell off mainly on the exhaust but all better than a stock npi head (flow charts compaired to came from the max performance modular book i bought from barnes and noble). Here they are...
intake Exhaust .050 31.8 24.2 .100 48.6 45.9 .150 67.9 58.6 .200 87.1 82.8 .250 109.2 99.1 .300 127.6 115.1 .350 147 117.5 .400 155.4 116.2 .450 168.2 118.5 .500 178.6 118.9 .550 190.2 118.7 .600 197.5 119.2 I believe that I need to put the grooves back on the exhaust side right before the header would be connecting to the head, with the numbers rising till the end leads me to believe that I may have lost velocity. So a little more work I may be able to see even better numbers. Tell me what you think. Now I am trying to find a set of cams with .550 lift with a 205/200 duration. Thanks everyone
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January 27th, 2012, 08:44 PM
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#2 | |
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Regular
1997 4v Mustang GT
13.66
Join Date: Jan 2012
Location: Colorado
Posts: 151
iTrader: 0 reviews
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Im interested to see how this turns out man. How do you think you will do compared to others after your done?
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January 27th, 2012, 09:48 PM
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#3 |
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Just Another Stang
1996 Mustan GT
N/A
Join Date: Jan 2012
Location: Canyon Lake,Texas
Posts: 50
iTrader: 0 reviews
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I'll be watching this thread as well! Sounds interesting!
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February 6th, 2012, 11:17 AM
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#4 |
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Regular
1996 Mustang GT Convertib
NA
Join Date: Mar 2010
Location: Georgia
Posts: 68
iTrader: 0 reviews
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I talked to my machine guy. I have now took the valve guide humps down and my exhaust side I had created a peak in the curve. All middle #s on intake side came up and exhast are barely below pi now. I am going to do a 3 angle and call it a day
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USA Street Kings |
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February 6th, 2012, 11:39 AM
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#5 |
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Hardcore Enthusiast
1997 Pacific Green Cobra
14.80 No traction
Join Date: May 2010
Location: New Orleans
Posts: 1,216
iTrader: 0 reviews
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awesome. def post numbers on that when done. it should outflow NPI
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GT ENGINE (temporary) 4.30 Gears , 31 spline Moser axles , Detroit tru Trac diff, Jmod 4r70w , Pi intake Hitech stage 2 cam, Vortech V2 3.33 pulley. Alum drive shaft. Lowering kit x2 ball joints ,screamin demon coils, LCA " |
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February 6th, 2012, 08:46 PM
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#6 | |
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MM Fanatic
2000 Mustang GT 5spd
35.9@16.99
Join Date: Jun 2011
Location: Stephenville,tx
Posts: 4,382
iTrader: 17 reviews
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Very cool
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MODs: HP292 cams, LT's, o/r x, SLP LM1, 4.10,Mac cai, pro 5.0 more visual bs Blu rays for sale: http://www.moddedmustangs.com/forums...ps3-fs-ft.html
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February 6th, 2012, 09:36 PM
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#8 |
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Hardcore Enthusiast
1997 Pacific Green Cobra
14.80 No traction
Join Date: May 2010
Location: New Orleans
Posts: 1,216
iTrader: 0 reviews
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 pics naow !!!
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GT ENGINE (temporary) 4.30 Gears , 31 spline Moser axles , Detroit tru Trac diff, Jmod 4r70w , Pi intake Hitech stage 2 cam, Vortech V2 3.33 pulley. Alum drive shaft. Lowering kit x2 ball joints ,screamin demon coils, LCA " |
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February 7th, 2012, 12:18 PM
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#9 |
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Regular
1996 Mustang GT Convertib
NA
Join Date: Mar 2010
Location: Georgia
Posts: 68
iTrader: 0 reviews
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How do you post pics
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USA Street Kings |
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February 7th, 2012, 12:20 PM
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#10 |
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Hardcore Enthusiast
1997 Pacific Green Cobra
14.80 No traction
Join Date: May 2010
Location: New Orleans
Posts: 1,216
iTrader: 0 reviews
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Upload to photobucket.com or some other site and then post the IMG link frmo the pic
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GT ENGINE (temporary) 4.30 Gears , 31 spline Moser axles , Detroit tru Trac diff, Jmod 4r70w , Pi intake Hitech stage 2 cam, Vortech V2 3.33 pulley. Alum drive shaft. Lowering kit x2 ball joints ,screamin demon coils, LCA " |
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February 7th, 2012, 08:38 PM
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#11 |
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Regular
1996 Mustang GT
Join Date: Nov 2011
Location: Baltimore, MD
Posts: 170
iTrader: 0 reviews
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Nice work. Good to see someone doing the NPI heads some justice and not just junking them for the PI swap.
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February 7th, 2012, 08:54 PM
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#12 | |
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Rollin' 18/ pushin' 2
1997 Saleen S281
Join Date: Feb 2007
Location: The lost highway
Posts: 6,673
 iTrader: 13 reviews
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 MODS IN GARAGE NCMM ORIGINAL BLOWN 96-98 CREW MEMBER # 1 |
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