E-303 cam
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Joined: May 2003
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From: arlington tx
E-303 cam
I have a 94 f150 302 MAF with gt-40 turbo swirl heads, headers, etc. and I am wanting to install a motorsport E-303 cam. My stock cam is a roller cam but it has the standard 302 firing order. Can I do the E-303 without a computer swap? Or can anyone recommend a good cam for a 94 with auto trans and 4.10 gears? my truck is a long box extended cab so I need some torque but cant go too wild due to the auto trans and Texas emission laws.
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E-303 cam
The e cam is more suited to a light mustang than a big truck.The duration will give you problems passing emissions and making low rpm torque.Comp or one of the other cam companies can sell you a cam more suited to a truck and the firing order won't be an issue.
CB
CB
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Joined: Sep 2002
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From: North Texas
E-303 cam
PLEASE do not get this cam! The FMS cams are bad for EFI rides. The LSA is too narrow for the computer to deal with the low vac.
A 212/218 or something similar would be better for a truck. Keep lift around .450-.490" also.
MOST importantly go with at least a 112LSA, anything narrower will just cause grief, I used the E cam for about a year and a half before I sold the car that had it. It is just a poor design and not too computer friendly.
A 212/218 or something similar would be better for a truck. Keep lift around .450-.490" also.
MOST importantly go with at least a 112LSA, anything narrower will just cause grief, I used the E cam for about a year and a half before I sold the car that had it. It is just a poor design and not too computer friendly.
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Joined: May 2002
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From: Smithton
E-303 cam
I am not for or against this cam, but here is what I know. There is no need to change the injector firing order, although you can if you want to. The E cam IS emissions legal, and I have seen many EFI mustangs and one 94 truck run flawlessly on this cam. I have personally used it in my own 86 and 89 mustangs. Although I probably wouldnt do it again, because there are better cams out there.
Post Fiend
Joined: Nov 2001
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From: Topsfield, MA
E-303 cam
Sure it'll run good in a mustang, but the mustang uses a different powerband. You need more low end torque for a big heavy truck.
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Lead Driver
Joined: Sep 2002
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From: North Texas
E-303 cam
Thank you MustangGT221. Now maybe someone will believe me about picking cams.
Mustangs are light, trucks are not. CALL a cam company for your application.
Mustangs are light, trucks are not. CALL a cam company for your application.
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From: Copley, OH
E-303 cam
Originally posted by 2WISE4AGM
I am not for or against this cam, but here is what I know. There is no need to change the injector firing order, although you can if you want to.
I am not for or against this cam, but here is what I know. There is no need to change the injector firing order, although you can if you want to.
The E-303 (same as the Crane 2040) is the wrong cam for a truck or probably anything else with 30"+ tires. It has very little bottom end and makes it's best power in the 4500-6000 range. Crane makes a truck-specific EFI cam and for built-up engines their 2030 will give a ton more mid-range than the 2040.
Mountain Pass
Joined: Jan 2003
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E-303 cam
What all is involved in changing the firing order of the injectors? I have a mass air conversion so I don't have the bank to bank injection any more.
Is it as simple as switching the wires from one injector to another just like you would do with the spark plugs?
I've been considering a switch to another cam, but it has the HO firing order.
I went to the Comp Cams web site and used the cam finder they have there. They recommended cam part # 35-320-8 which should do a little better than the 260HR I'm running now.
Other than changing the injectors and spark plug order, is there anything else that would have to be done?
Is it as simple as switching the wires from one injector to another just like you would do with the spark plugs?
I've been considering a switch to another cam, but it has the HO firing order.
I went to the Comp Cams web site and used the cam finder they have there. They recommended cam part # 35-320-8 which should do a little better than the 260HR I'm running now.
Other than changing the injectors and spark plug order, is there anything else that would have to be done?
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Joined: Sep 2002
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From: North Texas
E-303 cam
http://www.cranecams.com/master/apps/ford19.htm
The 2030 or 2031 would work nicely. Good idle with some lope but most importantly...computer friendly. Notice the 112lsa, that is the narrowest computer friendly cam you can go with.
This cam will have a ton more power throughout the operating range. Easily will pull hard 5500rpms.
Your AOD with ~2200rpm stall converter from the factory will work nicely with this too. I do recommend getting a TransGo shift kit installed and about a 5500rpm WOT governer springs.
The 2030 or 2031 would work nicely. Good idle with some lope but most importantly...computer friendly. Notice the 112lsa, that is the narrowest computer friendly cam you can go with.
This cam will have a ton more power throughout the operating range. Easily will pull hard 5500rpms.
Your AOD with ~2200rpm stall converter from the factory will work nicely with this too. I do recommend getting a TransGo shift kit installed and about a 5500rpm WOT governer springs.
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New User
Joined: May 2003
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From: arlington tx
E-303 cam
Thanks everyone for all the help, I think I will go with the comp cam, sounds like alot less headache and much more suited to my needs. The trans mods seem like a good idea as well. My trans has alot of miles on it so I think I will ride out for a while and when it starts to show signs of wear (after cam install it wont be long) then I will add a few upgrades with the rebuild/replacement.
But, again thanks for all the help.
But, again thanks for all the help.
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Joined: Jul 2001
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From: South Carolina
E-303 cam
I just wanted to add my 2 c's. I have been very happy with my e-303. Idles good and lopey, takes off well, and pulls like a demon to 6,000 rpms. I geared the axles to make up for the lack of bottom end grunt. Now don't get me wrong, I am certain that I could get a better cam custom ground for all my mods that would run the E into the ground, but for what I wanted, and was willing to spend on a cam, the E works well. Also, I had a 2030 crane before, in this same truck. It was also a wonderful cam, but keep in mind that with 533/544 lift, valve to piston clearances must be checked, and ensure that you have springs that won't float the valves or bind. Just another couple of things to think about. Good luck.. Later. Hippie.
Post Fiend
Joined: Jun 2001
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From: Running Springs CA
E-303 cam
MAF does NOT mean sequential fuel injection. The injectors are still bank fired on the 5.0 and 5.8L engines with MAF. My source is the factory service manual. OHC engines from later years may be a different story.
Crane has better cam grinds for low end torque on Ford small blocks, part #444211 for 1500-5000 rpm powerband and has the correct firing order. The stock Ford 351W roller cam would be another possibility.
Jim
Crane has better cam grinds for low end torque on Ford small blocks, part #444211 for 1500-5000 rpm powerband and has the correct firing order. The stock Ford 351W roller cam would be another possibility.
Jim
