Go Back   Ford Mustang Forums > Mustang > 5.0 Mustang > 5.0L Tech

Welcome to our Mustang forums where Mustangers come together to hang out, discuss and enjoy their favorite Mustang hobby with fellow Mustang enthusiasts. We invite everyone to read, post, and enjoy our Mustang forum as well as the many other sections of our site.

You are currently viewing our forums as a guest. By joining our community you gain access to post topics, communicate with members, upload your photos and access many other special features. Registration is fast, simple and free so why wait, join our Mustang community today! If you have any problems with registration or your account login, please contact support.

5.0 Mustangs Tech Forum

5.0L Talk | 5.0L Tech | 94-95 Tech | 1979-1993   1994   1995   Upload Pictures | Timeslips | Power Adders | Mustang Tech 


Reply   Post New Thread
Unread 01-09-2012   #1 (permalink)
87PONYGT is offline Apprentice

5.0L Member


Joined: Sep 2010
Posts: 62 Threads: 10
 87PONYGT's Country Flag  View 87PONYGT's 1 photo  View 87PONYGT's 1 classified ad
Calgary   Alberta
87PONYGT is on a distinguished road
Default 351W how much HP and any fuel upgrades?

Hey guys and girls,

I'm currently waying out my options as what to do for a motor. I am running a V3 SC and its putting down 461 RWHP so I'm at the limits of a stock 302 block. I'm thinking about going 351W cause the block is stronger and nowhere near the cost of a dart block. Here's the question for any of you guys running a 351W, What kind of power are you making and did you have to do any fuel system upgrades? I have a 255 fuel pump and was running 42lb injectors but am going to go bigger for future plans.
__________________
1987 Mustang GT T-Top
3:73 gears, Trick-flow fast as cast heads, track heat intake, TFS stage 2 cam, 1.6 Scorpion rockers, Complete MSD, Astro A-5 transmission, 80lbs injectors, 75mm throttle body, 90mm Lightning MAF, Vortech v3 (black) with 9lbs pulley, UPR power pipe, Dyno tuned on a Mustang dyno @ 495, and a lot more that I cant think of right now.
87PONYGT is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote
Sponsored Links
Advertisement
 
Unread 01-09-2012   #2 (permalink)
cindys_sn95 is offline Banned


Joined: Nov 2007
Posts: 7,991 Threads: 25
 cindys_sn95's Country Flag  View cindys_sn95's 7 photos
Gulfport   Mississippi
cindys_sn95 is on a distinguished road
Default

what rotating assembly do you have now? by the time you get a 351W block, machine work, rotating assy. you could probably get a dart block...
cindys_sn95 is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote
Unread 01-09-2012   #3 (permalink)
2Manystangs is offline Banned

4.6L Member


Joined: Mar 2009
Posts: 12,916 Threads: 35
 2Manystangs's Country Flag
Tampa   Florida
2Manystangs is on a distinguished road
Default

on my 427 car, it has a custom fuel hat/tank, and an aeromotive external to feed the beast...
2Manystangs is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote
Unread 01-09-2012   #4 (permalink)
87PONYGT is offline Apprentice

5.0L Member


Joined: Sep 2010
Posts: 62 Threads: 10
 87PONYGT's Country Flag  View 87PONYGT's 1 photo  View 87PONYGT's 1 classified ad
Calgary   Alberta
87PONYGT is on a distinguished road
Default

Right now it's a stock block with 400,000KM's on it. I can pick up a 351 for 50 and get it machined, rods sized, new forged pistons, ARP hardware and reassembled for $1500 CAD So that's no where near the the 6K it would cost for a 347BB from CHP.
__________________
1987 Mustang GT T-Top
3:73 gears, Trick-flow fast as cast heads, track heat intake, TFS stage 2 cam, 1.6 Scorpion rockers, Complete MSD, Astro A-5 transmission, 80lbs injectors, 75mm throttle body, 90mm Lightning MAF, Vortech v3 (black) with 9lbs pulley, UPR power pipe, Dyno tuned on a Mustang dyno @ 495, and a lot more that I cant think of right now.
87PONYGT is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote
Unread 01-09-2012   #5 (permalink)
87PONYGT is offline Apprentice

5.0L Member


Joined: Sep 2010
Posts: 62 Threads: 10
 87PONYGT's Country Flag  View 87PONYGT's 1 photo  View 87PONYGT's 1 classified ad
Calgary   Alberta
87PONYGT is on a distinguished road
Default

How long have you had the aeromotive system? Any problems with the pump crapping out? I heard there famous for that.
__________________
1987 Mustang GT T-Top
3:73 gears, Trick-flow fast as cast heads, track heat intake, TFS stage 2 cam, 1.6 Scorpion rockers, Complete MSD, Astro A-5 transmission, 80lbs injectors, 75mm throttle body, 90mm Lightning MAF, Vortech v3 (black) with 9lbs pulley, UPR power pipe, Dyno tuned on a Mustang dyno @ 495, and a lot more that I cant think of right now.
87PONYGT is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote
Unread 01-09-2012   #6 (permalink)
cindys_sn95 is offline Banned


Joined: Nov 2007
Posts: 7,991 Threads: 25
 cindys_sn95's Country Flag  View cindys_sn95's 7 photos
Gulfport   Mississippi
cindys_sn95 is on a distinguished road
Default

rotating assembly! WHAT CRANK, RODS, AND PISTONS? nevermind..
cindys_sn95 is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote
Unread 01-09-2012   #7 (permalink)
David.kinter is offline Made Member


Joined: Dec 2010
Posts: 1,061 Threads: 51
 David.kinter's Country Flag
Jacksonville   Florida
David.kinter is on a distinguished road
Default

If I recall the Dart Sportsman blocks are under 3k and handle upwards of 700hp+.

Sure, you can go with a 351... then you gotta change up a whole bunch of crud.
__________________
Nitrous is like a hot girl with aids; you want her, but you're scared of what she can do.
-Dave
David.kinter is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote
Unread 01-09-2012   #8 (permalink)
87PONYGT is offline Apprentice

5.0L Member


Joined: Sep 2010
Posts: 62 Threads: 10
 87PONYGT's Country Flag  View 87PONYGT's 1 photo  View 87PONYGT's 1 classified ad
Calgary   Alberta
87PONYGT is on a distinguished road
Default

Why are you yelling at me? It's a stock block so stock crank,rods and pistons. Anyways this was started to see about HP numbers and what kind of fuel upgrades are needed. I've Looked into everything to get the block into my car and it's about $800 CAD plus $1500 CAD to get it machined, rods sized, new forged pistons, ARP hardware and reassembled and just a sportsman block starts at $2500 USD
__________________
1987 Mustang GT T-Top
3:73 gears, Trick-flow fast as cast heads, track heat intake, TFS stage 2 cam, 1.6 Scorpion rockers, Complete MSD, Astro A-5 transmission, 80lbs injectors, 75mm throttle body, 90mm Lightning MAF, Vortech v3 (black) with 9lbs pulley, UPR power pipe, Dyno tuned on a Mustang dyno @ 495, and a lot more that I cant think of right now.
87PONYGT is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote
Unread 01-09-2012   #9 (permalink)
cindys_sn95 is offline Banned


Joined: Nov 2007
Posts: 7,991 Threads: 25
 cindys_sn95's Country Flag  View cindys_sn95's 7 photos
Gulfport   Mississippi
cindys_sn95 is on a distinguished road
Default

i did not ask anything about your block. you have a vortec and tfs heads, why would we assume you have a stock crank, rods, and pistons? sounds like you've got it figured out, good luck.
cindys_sn95 is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote
Unread 01-09-2012   #10 (permalink)
87PONYGT is offline Apprentice

5.0L Member


Joined: Sep 2010
Posts: 62 Threads: 10
 87PONYGT's Country Flag  View 87PONYGT's 1 photo  View 87PONYGT's 1 classified ad
Calgary   Alberta
87PONYGT is on a distinguished road
Default

Thanks for all you useful info have a great day!
__________________
1987 Mustang GT T-Top
3:73 gears, Trick-flow fast as cast heads, track heat intake, TFS stage 2 cam, 1.6 Scorpion rockers, Complete MSD, Astro A-5 transmission, 80lbs injectors, 75mm throttle body, 90mm Lightning MAF, Vortech v3 (black) with 9lbs pulley, UPR power pipe, Dyno tuned on a Mustang dyno @ 495, and a lot more that I cant think of right now.
87PONYGT is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote
Unread 01-10-2012   #11 (permalink)
spdjnky_42 is offline Top Dog

5.0L Member


Joined: Nov 2007
Posts: 13,639 Threads: 204
 spdjnky_42's Country Flag  View spdjnky_42's 21 photos
St.Louis   Missouri
spdjnky_42 is on a distinguished road
Send a message via Yahoo to spdjnky_42
Default

If you get a 351 the block can handle around 700 hp you can get there only with the SC. Without stroking it the 351 will not really put out enough hp over the 302 to justify the more weight added. You will need a cowl hood, 351 distributor, 351 specific headers and maybe another thing or two like a better 351 intake. Hp justifys your fuel consumption. Basically with a hp increase something will need to be upgraded. 300 you need injectors 65mm tb and spacer with 70mm maf, 190 fuel pump. 400 hp you need 30# injectors 255 lph fuel pump 70mm tb and 75mm maf. 500 hp you need 42# inj 255 pump 75mm tb 80mm maf, 550 hp 42# inj 255lph pump and an inline pump like a t rex if boosted. 600 hp you probably need bigger inj and pump, definelty bigger fuel lines, 90mm maf tb etc. and so on. Also these numbers can be on the low sde on a boosted app.
__________________
When the green light drops...
The Bullsh!t stops. :shiny:
spdjnky_42 is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote
Unread 01-10-2012   #12 (permalink)
87PONYGT is offline Apprentice

5.0L Member


Joined: Sep 2010
Posts: 62 Threads: 10
 87PONYGT's Country Flag  View 87PONYGT's 1 photo  View 87PONYGT's 1 classified ad
Calgary   Alberta
87PONYGT is on a distinguished road
Default

Thank you spdjnky_42 That's what I was asking. I have 80lb injectors a 255 fuel pump, 75mm tb, 90mm lightning MAF, I can get the headers and distributer locally for $150 , so I know what else I will need to make this work. Anyone know where to get a good fuel system for a decent price?
__________________
1987 Mustang GT T-Top
3:73 gears, Trick-flow fast as cast heads, track heat intake, TFS stage 2 cam, 1.6 Scorpion rockers, Complete MSD, Astro A-5 transmission, 80lbs injectors, 75mm throttle body, 90mm Lightning MAF, Vortech v3 (black) with 9lbs pulley, UPR power pipe, Dyno tuned on a Mustang dyno @ 495, and a lot more that I cant think of right now.
87PONYGT is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote
Unread 01-10-2012   #13 (permalink)
Smurf stang is offline SHELBY GT 500 Member

5.0L Member


Joined: Apr 2009
Posts: 13,665 Threads: 67
 Smurf stang's Country Flag
Miami   Florida
Smurf stang is on a distinguished road
Default

Well stock fuel lines will be maxed out so start piecing together lines, fittings and a pump ( I am sure they have a kit). Along with what junky said it correct as you will need to feed the beast.

Also there is no guarantee that the 351 will support 700 hp if not built correctly as it is a factory block not necessarily made for racing.
__________________
2014 V6 Deep Impact Blue Mustang 2.73 (Uughh)
1989 Sonic Blue Mustang LX Coupe, 349 ci, TW heads, TFS Track Heat intake, 75mm Accufab TB, 80mm ProM, 30 lb inj., Jay Allen cam, TKO, 3.73, 31 spline w/ TruTrac, MAC 1-5/8" LT headers w/ h-pipe, 2-1/2 flowmaster, electric fan, Moates QH
392 rwhp 424 rwtq....Mustang Dyno
"There are three kinds of men. The one that learns by reading. The few who learn by observation. The rest of them have to pee on the electric fence for themselves." -Will Rogers-
Smurf stang is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote
Sponsored Links
Advertisement
 
Reply   Post New Thread



Thread Tools



Mustang Photos
Mustang Links    Top Sites    RSS    Link To Us    Add to Favorites    Archive    Terms of Use    Site Rules    Privacy    Contact    Sponsors    Advertise   
AllFordMustangs is not affiliated with or endorsed by Ford Motor Company. ©Copyright 2002-2011 All Auto Enthusiasts Network

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162