Speed Density Burn
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Logistics Pro
Joined: Jun 2012
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From: Southeastern IL
Speed Density Burn
Hey guys. Iv got a 1992 F-250 with BIG plans! Iv got a 460 on stand-by awaiting a good build. Im wanting 500+ ft lbs and 400+ horse. Those are easy numbers to get to but anymore than those numbers is difficult with this speed density BS. Can you get these sent off to be burned or is it more of an in-house thing you have to trial and error to get right? Im definitly thinking about just swappin in a manual tranny and converting to carb... less headache!
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Joined: Jun 2006
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From: Ottawa, Ontario
There are no programmable parts inside the SD computer so you need an external chip or tuning module. Of those two the tuner is easily the better way to go since there is almost no way a 3rd party can provide a really good tune on a chip without actually having the truck in-house to runs tests on, it may take several burns to get it close enough that you can live with it or they may never get it right and you're paying for every burn. With a tuner you're doing the adjustments yourself so you'll have to learn a bit about the system but there are no limits to the number of burns that can be made so you can dial it right in.
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Logistics Pro
Joined: Jun 2012
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From: Southeastern IL
How do you figure? Its about $700 and a year to just get started on learning how to tune that chip. A carb swap is as easy as getting different heads, intake, and rerouting fuel lines and throttle. And since itll all be mechanical stuff, I wont have to worry about a chip at all
FTE Legend
Joined: Jun 2006
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From: Ottawa, Ontario
Ah...no. You also need a bypass fuel pressure regulator to bring pressure and flow down to something a carb can use, a points or duraspark distributor and matching ignition system, and you got to change the trans and both drivehsafts because the manual geaboxes are much smaller than the autos.
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Logistics Pro
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From: Southeastern IL
No problem! Iv got a complete drivetrain on stand-by. Just gotta pay for it lol.
And I was readin up on using the Quarterhorse and tuning it that way. Iv never heard of a Moates. Im less worried about getting it running as I am getting it running right. No one around here knows anything about tuning chips so Id be on my own but Iv got a couple guys that know everything about carbed applications. Thats why Im leaning quite heavy towards carbs.
And I was readin up on using the Quarterhorse and tuning it that way. Iv never heard of a Moates. Im less worried about getting it running as I am getting it running right. No one around here knows anything about tuning chips so Id be on my own but Iv got a couple guys that know everything about carbed applications. Thats why Im leaning quite heavy towards carbs.
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FTE Legend
Joined: Jun 2006
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From: Ottawa, Ontario
I see your point about the carb setup.. tried and true and easy to get help with. But your power goals aren't that radical really and may be possible with the stock cam, a good porting job on the heads and a full exhaust system. Swap the stock 24lb injectors for 30's, make the appropriate adjustments for them with the tuner and the computer does the rest. Now.. you may have to swap out the stock 460 computer for a Lightning version since that's the truck that is most commonly hotrodded so the tuner files are readilly available, but it's essentially the same piece of hardware with different programming so it's just as easily adapted(programmed) for a 460. I guess it comes down to what you're comfortable with, I'm a tech guy so computers are second nature to me but most others aren't so comfortable.
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Logistics Pro
Joined: Jun 2012
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From: Southeastern IL
Ill have to ask around. I feel like the EFI set-up would be more reliable but carbs would be less headache lol. My biggest problem now is finding someone who can tune the computer
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From: Southern California
Try HP Tuners- they sell a software program that cost about what a "Tuner" does & it speaks english
Moderator
Joined: Aug 2002
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From: Southern California
if you require a separate chip, they have a kit for that...the software reprograms the ecm itself & allows you to save the oem programming...check out the site it is very explanitory
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Joined: Aug 2002
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From: Southern California
Shoot them an e-mail, tell them of your situation, they are pretty good at responding and even recommending other options.....
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