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Supporting mods to get 300HP out of 5.0

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Old 07-30-2009, 01:14 PM   #1
5.0mustangaod
 
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Question Supporting mods to get 300HP out of 5.0

Hey, Ive got a fully rebuild 302 with only about 100 km on it, i finished it last week. In the mean time, I bought myself a set of Edelbrock Performer 60379 heads. I need some advise on how I will get at least 300 HP out of this motor. Im thinking

- 1.6 Roller rockers
- E303 (Installed)
- Mill the Edelbrock heads
- Upper and lower intake, dont know which one yet


Thats my plan so far, but what else would you guys recommend? Injectors? Fuel rails? Anything would help. And id like to keep it NA for now.
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Old 07-30-2009, 01:28 PM   #2
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Milling brand new heads? Put that all together and throw it on the dyno, first.
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Old 07-30-2009, 01:49 PM   #3
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well, i bought them used. But they are in need of a milling, it looks like someone milled in a ring around each combustion chamber for a special type of head gasket that may of had to deal with a turbo or nos.
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Old 07-30-2009, 07:02 PM   #4
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^^^^loc wire head gaskets......anyway, th e-cam will hurt you, you'd max the potential and get close to your goal panding on the intake you chose and I'd get a custom cam to max the combos potential
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Old 07-30-2009, 07:27 PM   #5
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agreed...that e cam is outdated...think about a trickflow, comp cam..etc
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Old 07-30-2009, 08:08 PM   #6
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Trick Flow TW heads 170, Custom cam, Track Heat Intake
300+wrhp.

http://sbftech.com/index.php/topic,15152.0.html
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Old 07-31-2009, 12:13 AM   #7
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+1 on TFS1 ive heard my friend has it its got a decent bump and idle to it you should like it =]
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Old 08-09-2009, 11:27 PM   #8
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haha, yes i agree the E303 is a little dated but i just rebuild the 302 its got only about 400km on it, hasent even broken in yet, so the motor wont be torn down anytime soon. What do you guys think? U/L intake, 24 lbs injectors, mill the heads, roller rockers? What else can I do?
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Old 08-09-2009, 11:29 PM   #9
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Why do you feel the need to mill the heads?
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Old 08-10-2009, 01:52 AM   #10
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shucks, the stock 5.0 H.O. roller cams are not too bad. there was a magizane article in CAR CRAFT where they built a 5.0 and got 400 with the stock cam and aftermarket heads but the thing is that it not fuel injected...

I would say get your heads squared away and get 1.7:1 ratio rocker arms should get you close to your goal. I would say that your fuel rail is NOT going to be an issue at all, nor would I think that the stock injector size would be your limiting factor... I would guess that your lower intake manifolid would be holding you up.

Here is the article:

http://www.carcraft.com/techarticles...cam/index.html


Here is a snippet from the article

If we claimed we could make 400 hp with a stock Ford 302 short-block and the stock factory hydraulic-roller cam, you'd probably say, "No big deal, they're probably using nitrous." What if we said we could do it without nitrous or any other kind of power-adder-totally naturally aspirated, and the only things we'll change are the heads, headers, and rocker arms? Everything else-pistons, rods, cam, oiling system, and so on remains totally stock. We hope you'd be impressed, because we certainly were.
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Old 08-10-2009, 02:06 AM   #11
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Hmm I was thinking: Its possible that the 19lb/hr could get to be a problem... here the item to consider is that you stated 300hp, and 19's *will* get to that point but not support a constant output of 300 hp... you did not say if you wanted your average hp to be 300 or just the brief peak when you are stomping on it & max revs.

However assuming that you want about 300 peak hp - safe guess, right? The 19's would only be good if they are WORKING PROPERLY. heck same goes for 24's 36's ect. The point is that if you are going to stress it or get close to the limit make sure you they are clean and working properly.

Either way you should get a new fuel pump and filter AND adj fuel reg. if you dont have these already. I would like to recommend for you

1)fix the heads mill them or what have you
2)get 1.7:1 rocker arms comp cams magnum or any full rollerized
3)get head gaskets. Pay attention to the compressed thickness and bore size. Lots of folk simply get 4.100 when they only need 4.030 or even 4.000.
4)new walbro 190 lph fuel pump
5)motorcraft inline fuel filter
6)MM billet adjustible fuel regualtor (its a beauty!)
7)REMOVE all injectors and have them properly cleaned

some of that is pretty basic and does not involve aftermarket computers or kludgy MAF introducing drivibility problems. After above steps completed, you could evaluate the rest of the fuel system and electronics. Further fuel upgrades need to be analized to really get what you want. You could just throw a big tin can MAF and toss some injectors in there, you could get a complete programmable aftermarket computer system like FAST, you could get the ford 24lb/hr complete '93 cobra system. I have an OEM on my 92 notchback and its street manners and upkeep are totally stock. This means that I do nothing and it works just fine idling when stone cold or in 114 temps :-P

read this:
http://www.motorsportsdigest.com/tech/perform1.htm
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Last edited by Hamutoff; 08-10-2009 at 02:24 AM.
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Old 08-13-2009, 08:12 PM   #12
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Well, im not sure if I will mill the heads now, since i know that the grove around the chamber is for a loc wire head gasket, so I might just skip milling them and getting a set of those head gaskets for it. Then maybe a few years down the road ill super charge it so those gaskets will be perfect for what I plan on doing with the car.
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Old 08-13-2009, 08:12 PM
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