power predictions
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power predictions
I have an 86 f150 efi. it currently has the stock motor and im finally getting round to getting it ready for upgrades. Im wondering what kind of numbers ill be looking at for horsepower and torque and where they will be in the powerband. Its getting built for low end torque for a daily driver with a lil grunt off the line.
option 1...Im adding a compcams 31-255-5 cam with long tube headers and dual magnaflow exhaust (2.5 most likely). Also looking into porting the exhaust on the heads and matching the intake to the heads.
option 2...Upon completeing everything in option 1, i might add the vortech supercharger system v-2. along with an intercooler.
option 2 depends on the numbers from option 1. if the numbers are a lil low than ill add the supercharger.
Thanks for all your help on figureing numbers for me so i know where they should be.
By the way, i have 3.55 gears with an AOD tranny.
option 1...Im adding a compcams 31-255-5 cam with long tube headers and dual magnaflow exhaust (2.5 most likely). Also looking into porting the exhaust on the heads and matching the intake to the heads.
option 2...Upon completeing everything in option 1, i might add the vortech supercharger system v-2. along with an intercooler.
option 2 depends on the numbers from option 1. if the numbers are a lil low than ill add the supercharger.
Thanks for all your help on figureing numbers for me so i know where they should be.
By the way, i have 3.55 gears with an AOD tranny.
FTE Legend
Joined: Jun 2006
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From: Ottawa, Ontario
Here's some graphs for you. The cam, headers, and porting all add up to a peak +57HP and +45 ft/lbs TQ over stock, and the powerband is significantly broader. The blower adds another +82HP and +64 ft/lbs TQ to the peaks, but beware this will require a boost retart ignition system and better than stock gearing to keep detonation under control. 4.10 gears should be part of your plans regardless how far you go with the motor.
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Just by adding the cam, headers, porting the heads and intake, what kind of mileage can i expect to recieve? id imagine it would go up if i drive it exactly the same as i do now, wouldn't it? Im currently gettin 15 on average.
Would my stock AOD tranny hold up to this new power added?
Would my 8.8 rearend hold up to this with a locker?
Would my stock AOD tranny hold up to this new power added?
Would my 8.8 rearend hold up to this with a locker?
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FTE Legend
Joined: Jun 2006
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From: Ottawa, Ontario
Yep, the tranny and rearend will be fine with all that, but a shift kit is good insurance. The added TQ will certainly help the truck maintain speed on the highway without downshifting, and that will improve milage.
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i wouldnt say that tranny would hold up. the 85-86 AOD were **** to failures due to being fords first run with this tranny in the bigger rigs. I would run an aftermarket cooler, remote tranny filter and transgo shift kit. also run a tranny temp gauge. I think the blower would not be worth while or cost effective.
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The motor and tranny is actually out of an 88 e150 van. i have an aftermarket cooler but havnt put it in yet and am thinking bout gettin a shift kit but am decideing if i should put in the towing or street application. i have decided to leave the blower out of the equation, at least for now anyway because like you say its not cost effective nor would i really benefit too much for what the truck is used for.
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My plans are mostly daily driving in the non winter months with a lil fun here and there like quick take offs of the line to show young kids that just cus they have a v8, that dont make em big boy. I have considered a 5.8 swap and thinking bout getting a 408 carbed for bout 7 grand which is less than what the 5.0 with all the mods would be. thes only thing that has kept me from really thinking too much bout that is the gas mileage. So if i ever need a new motor ill get the 408 but until than ill stick with the 5.0.
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A cam and exhaust will be very noticable, you'll wonder why the motor didn't come from the factory like that. It won't make it into a tire burning monster, but the motor will have more power from idle up and will keep pulling beyond where the stock motor was just making noise.
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I have been looking at a different cam and was wondering if this wouldnt be a better setup. compcam 31-234-3. the torque is a few ftlbs more and the hp is also higher.
Im wondering if this cam would work with my truck.
Im wondering if this cam would work with my truck.