Novice rebuild
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Novice rebuild
I have a 93 F350 and i am wanting to rebuild the engine. I was looking at putting some performance parts in it, but i don't want to destroy my towing power so my question is if I put High performnce parts will it take from my towing, if so what can I do to and more HP without dropping the towing power?
Tuned
Joined: Oct 2012
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If it's a gas rig, leave it alone. Those years are still speed density and people just love to cram a camshaft in there that isn't speed density friendly and it makes the truck run terrible. You can however change the heads on it. I have an SD '92 Bronco with GT40P heads and the speed density system works fine with those heads.
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What is the easiest way to tell which trans I have. I have an overdrive button on my shifter so I assume its a 4 speed E4OD. Would I be correct?
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If it's a gas rig, leave it alone. Those years are still speed density and people just love to cram a camshaft in there that isn't speed density friendly and it makes the truck run terrible. You can however change the heads on it. I have an SD '92 Bronco with GT40P heads and the speed density system works fine with those heads.
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From: Mi'kma'ki
yes.the only option for an OD trans behind the diesels and 460's was the E40D.the lighter duty AOD placed behind the (majority) smaller gas engines wouldn't have held up to the torque.
don't get too wild with your BB build with your '93 E40D if it's not been rebuilt/updated (to at least '95 specs,preferably beyond right to 4r100hd spec) because she wont take it for very long.if planning large power,plan on a large trans build too or you'll just brake it.
don't get too wild with your BB build with your '93 E40D if it's not been rebuilt/updated (to at least '95 specs,preferably beyond right to 4r100hd spec) because she wont take it for very long.if planning large power,plan on a large trans build too or you'll just brake it.
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yes.the only option for an OD trans behind the diesels and 460's was the E40D.the lighter duty AOD placed behind the (majority) smaller gas engines wouldn't have held up to the torque.
don't get too wild with your BB build with your '93 E40D if it's not been rebuilt/updated because she wont take it for very long.if planning large power,plan on a large trans build too or you'll just brake it.
don't get too wild with your BB build with your '93 E40D if it's not been rebuilt/updated because she wont take it for very long.if planning large power,plan on a large trans build too or you'll just brake it.
Logistics Pro
Joined: Mar 2012
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From: Oregon
More than likely your not gonna find a "kit" for a EFI 460. You probably gonna have to piece it together. Then there is the issue with the speed density system. It works well on a stock engine, but any serious upgrades it cannot account for. To get around this you would need to MAF swap your truck as well as buy a tuner for it so once your done it can be tuned to run properly. The trick though, you have to find a EEC-IV from a 94-95 V8 that matches your transmission AND has a J3 port. These are not easy to find, at least for me. I went through 3 yards yesterday and only found 1 EEC that MIGHT work for my MAF conversion. Then comes the issue of fuel injectors. They can only supply fuel for up to 300 hp. Any decent modifications to the 460 is gonna go past that. And the list can go on and on... Then there is the transmission to account for... Did I mention almost NONE of this is cheap? Really gotta ask yourself if you can afford it as well as have the truck down for awhile.
Tuned
Joined: Oct 2012
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You could also just get it dyno tuned while leaving it SD. But the downside is that any time you do another upgrade it has to get re-tuned for the new set up.
Mass airflow actually meters the incoming air and can compensate for larger heads, bigger cams, and intakes. Speed density uses the speed of the engine in RPM's and uses the density of the air (uses MAP sensor to sense manifold pressure) and GUESSES how much air is coming in. When people cram a big cam in their SD vehicle, it shows a lower vacuum reading in the intake. The computer compensates by dumping tons of fuel since it thinks it has a load on it. Then the 02 sensor reads that it's running way too rich and tries to lean the mixture out, and then the computer goes right back to dumping more fuel. And that is how you get a surging idle from a big cam in an SD rig.
Mass airflow actually meters the incoming air and can compensate for larger heads, bigger cams, and intakes. Speed density uses the speed of the engine in RPM's and uses the density of the air (uses MAP sensor to sense manifold pressure) and GUESSES how much air is coming in. When people cram a big cam in their SD vehicle, it shows a lower vacuum reading in the intake. The computer compensates by dumping tons of fuel since it thinks it has a load on it. Then the 02 sensor reads that it's running way too rich and tries to lean the mixture out, and then the computer goes right back to dumping more fuel. And that is how you get a surging idle from a big cam in an SD rig.
Tuned
Joined: Oct 2012
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Also, I would advise you to stay away from building the E4OD by yourself unless you have a good amount of experience with automatic transmissions. I think it would be best for you to take it to a trans shop, tell 'em what you want, and that way you have a warranty. Any reputable trans shop has the ability to order high performance parts through their supplier so if they say they can't order the good stuff, take it on down the road.
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