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5.0L (1979-1995) Mustang Technical discussions on 5.0 Liter Mustangs within. This does not include the 5.0 from the 2011 Mustang GT. That information is in the 2005-1011 section.

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Old 01-16-2011, 09:48 PM   #1
old83GT

 
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Default max cam lift and duration with stock set-up?

I have an '86 5.0 HO that i'm running with stock heads and lifters along with flat top pistons. I have an Eldelbrock Performer RPM dual plane intake with a holley 650 cfm double pumper carb. I am currently running a ford racing E303 cam in it now. I am looking for a cam that is going to give a pretty nasty soundling idle with decent driveability and a rpm range of 2200-6500. Any ideas????
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Old 01-16-2011, 09:59 PM   #2
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Well, from everything I've read on the 5.0 - the E303 seems to be the all-around winner... Of course, I'm a 5.0 newbie, so take that with a grain of salt lol...

In general, there are so many cams out there that it really comes down to what you're planning on doing with your Mustang, and your end-goal (do any of us have those?).
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Old 01-16-2011, 10:02 PM   #3
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Yeah not sure any of us reallys knows. lol The E303 was an awesome street cam. I'm looking for something thats a little more narly sounding.
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Old 01-17-2011, 08:53 AM   #4
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The first question you need to ask yourself is do you want a "narly" sound or do you want performance. If you want a "narly" sound then download a nascar sound clip to an ipod and play that while you are driving around. If you want performance you need to take a look at what the restrictions are in your system.

You have already got the intake, carb and cam done. Unless there are other mods you havent mentioned then there is no use slapping another cam when you havent fixed the other restricions in your system.

Time to take a look at headers, exaust, ignition and your heads. I will leave it up to you to decide what to do as far as exaust goes. It seems like there is a million options as far as the fox bodies go, i will let the fox body guys lead you in the best direction here.

But for heads take a look at this link.

http://mustangbarn.com/portmatching.html

This fixes the biggest restriction in the entire system. Ford has been notorious for making poor exaust ports.

Also what type of distributor are you running? Duraspark, points style w/pertronics, eec IV, aftermarket? Depending on what you are running you might be able to have it recurved to boss 302 specs.
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Old 01-17-2011, 10:40 PM   #5
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Originally Posted by old83GT View Post
Yeah not sure any of us reallys knows. lol The E303 was an awesome street cam. I'm looking for something thats a little more narly sounding.
The problem with the really "narly" sounding cams is that the major valve overlap that causes the lopey idle also causes some other problems such as low vacuum at idle as well as difficulty idling, and some even have problems with overheating. I know this because I learned the hard way, although I havn't had problems with overheating myself. I advise you take this other gentleman's advice and upgrade your heads and exhaust first, the difference it makes is truly amazing....
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Old 01-18-2011, 08:14 PM   #6
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You are running a e-cam with stock pistons?I just installed one in mine same engine(86) and when i rolled it over i had a valve to piston issuse.I might wrong but it went right though the clay or is it just that close to piston.thanks in advance
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Old 01-18-2011, 11:11 PM   #7
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You are running a e-cam with stock pistons?I just installed one in mine same engine(86) and when i rolled it over i had a valve to piston issuse.I might wrong but it went right though the clay or is it just that close to piston.thanks in advance
that's because 86 was the only year the 5.0 h.0 pistons were manufactured without valve reliefs
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Old 01-19-2011, 01:55 AM   #8
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Quote:
Originally Posted by 04ShadowStang View Post
Well, from everything I've read on the 5.0 - the E303 seems to be the all-around winner... Of course, I'm a 5.0 newbie, so take that with a grain of salt lol...

In general, there are so many cams out there that it really comes down to what you're planning on doing with your Mustang, and your end-goal (do any of us have those?).
please dont give out any more advise.

OP, the E-cam is a horrible choice.

You should consider investing in a new shortblock, something with pistons that are notched for inline valved heads. then get yourself a decent set of heads (if budget allows). If you cant afford them, grab some GT-40 irons and select a GOOD cam. hell, even the TFS1 would be a better choice.
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Old 01-19-2011, 10:17 PM   #9
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Originally Posted by rtintwo View Post
But for heads take a look at this link.

http://mustangbarn.com/portmatching.html

This fixes the biggest restriction in the entire system. Ford has been notorious for making poor exaust ports.
Nice link =D
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Old 01-20-2011, 04:12 AM   #10
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Nice link =D
With the port matching its very possible to get 300 hp with stock heads. You are never going to be able to build a 9 second beast. But if all you are wanting is a fun street car without spending alot of money this is the ticket.
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Old 01-20-2011, 04:12 AM
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