E303 or F303 cam? - Ford Mustang Forum
 
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post #1 of 13 (permalink) Old 01-28-2009 Thread Starter
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E303 or F303 cam?

I am getting ready to add a set of heads. They are Floo -Tech heads. Rated better then the GT-40X heads and they have a 5 angle valve job. I currently have an E303 cam in my car. I am going to get a new MAF and #24lb injectors. I thought about getting an F303 cam. Will I notice much of a difference between my E cam and an F cam? I would like a fairly big gain . If it is not going to add alot then I will probably just leave the E cam in. Is it worth it? If there is not going to be much of a difference then I don't want to tear the front of the motor off to replace a cam. My E cam is not even a year old yet. I wanted more of a mean sounding cam and some more HP.

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Last edited by angry5.0; 01-28-2009 at 11:22 PM. Reason: Add mods
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post #2 of 13 (permalink) Old 01-28-2009
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if you are going to use no2 or supercharge the car or turbo then get the f cam if not stay with the e cam
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post #3 of 13 (permalink) Old 01-28-2009
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I know some people swear by the alphabet cams ....

IMO there are far superior cams on the market....
based on you desire to have a "meaner sounding cam this what I'd recommend.....

COMP Cams: Nitrous HP™, NX274HR <br> Street/Strip Applications, Rough Idle
post #4 of 13 (permalink) Old 01-28-2009
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many a better cam out there then the so called "alphabet" cams

comp cams makes alot of great ones and will custon grind one for your application for not much more then a opff the shelf grind

as usual reggie beat me to it

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post #5 of 13 (permalink) Old 01-28-2009
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many a better cam out there then the so called "alphabet" cams

comp cams makes alot of great ones and will custon grind one for your application for not much more then a opff the shelf grind

as usual reggie beat me to it

i didn't mention custom grinds i left that on the table for you....
post #6 of 13 (permalink) Old 01-29-2009 Thread Starter
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I like the Alphabet cams. I just wanted some input on which to do. Keep my E cam or go to an F cam. I am not going turbo, supercharged or anything over 350 HP.

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post #7 of 13 (permalink) Old 01-29-2009
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Not worth the money to switch from E to F. If your gonna switch try a better cam.
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post #8 of 13 (permalink) Old 01-29-2009 Thread Starter
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How about an X303 cam. I like the Ford Racing cams. Plus they are under $200. I just want to know. Will I see much of a difference from an E303 to a F303? I know the X303 cam is good. But it might be a little too much!

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post #9 of 13 (permalink) Old 01-29-2009
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I use the x and love it but seems to cause a little idle issue, before warm up. I hope someone dis agrees w/ me then Ill know to look into fix-in-it.
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How about an X303 cam. I like the Ford Racing cams. Plus they are under $200. I just want to know. Will I see much of a difference from an E303 to a F303? I know the X303 cam is good. But it might be a little too much!
there is a reason they are under $200.00.....

with that being said it is known fact in these part there is no love loss between me and the alphabets......


but with that being said even if those are the cams you like it will be no better than the paper weight that i feel it is, if it doesn't work with you combo....

call a cam company to see what they recommend that will work best in particular with your heads and intake.....

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I use the x and love it but seems to cause a little idle issue, before warm up. I hope someone dis agrees w/ me then Ill know to look into fix-in-it.
there is really only one way to get that cam to work is get the car on a dyno ......
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there is really only one way to get that cam to work is get the car on a dyno ......[/quote]


Come on Reg,

I just got the AEM methanol kit today, I still need to install it. But I sure hope that fixes the idle issue. Kinda annoying when your trying to leave a public place. Its already loud as a h*ll breakin loose, more or less having to rev it to get to stay running.
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depends on your rocker ratio, 1.6 or 1.7? I'd watch that piston to valve clearance with the F or X303's.

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there is really only one way to get that cam to work is get the car on a dyno ......

Come on Reg,

I just got the AEM methanol kit today, I still need to install it. But I sure hope that fixes the idle issue. Kinda annoying when your trying to leave a public place. Its already loud as a h*ll breakin loose, more or less having to rev it to get to stay running.

there very few people i know that have ever use the x cam that didn't have those problems.....

try bumping up the fuel pressure a little .....
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