Chassis capable hp? (Input please) - 460 Ford Forum
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post #1 of 24 (permalink) Old 02-23-2007, 01:19 PM Thread Starter
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Chassis capable hp? (Input please)

How much Hp do you think my truck can handle safely? I have been dead set on 750hp for my engine build. But I am now starting to try to imagine the whole build as a package. I guess I am trying to realistic and only build what the truck can handle. That way I can get back to having fun rather than up grading parts because I am making too much power!

For reference my truck is a, 1979, F150, super cab, short bed, 2wd. It won't win any beauty awards but it's my "truck". It weighs 4,540lbs with driver and a full tank of gas. Right now it runs 9.4's in the 1/8th. It will probably bust out a 9.0 or 8 next time out with the slicks. When using my calculator I get 268hp but others are closer to 300.


I hope one day down the road to have a real pro built drag car one day. But for now I am using this truck as my learning tool.
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post #2 of 24 (permalink) Old 02-23-2007, 05:47 PM
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mines handling 500+ okay, but mine is heavier than yours and yours will probably twist more than mine also. But what do I know, I'm 22 and dont care :lol:
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post #3 of 24 (permalink) Old 02-23-2007, 06:14 PM
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Quote:
Originally Posted by Fordguy545
mines handling 500+ okay, but mine is heavier than yours and yours will probably twist more than mine also. But what do I know, I'm 22 and dont care :lol:
Thats some funny sh** ^^
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post #4 of 24 (permalink) Old 02-23-2007, 08:05 PM
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now that your thinking of it as a whole package a general rule of the thumb i use is to spend as much from the flywheel to the lugnuts as you do on the motor.if you spend 4k on the motor put 4k in upgrading the drivetrain.convertor,transmission,shifter,drivesha ft,3rd memeber w/billet caps,racing axles,9" housing w/brace, shocks,ladder bars,cal-tracs or 4 link. i think if you use this formula you will have a reliable,fun and quick truck....ron

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post #5 of 24 (permalink) Old 02-23-2007, 09:01 PM
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I prefer the "change things as they break rule". :lol:
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post #6 of 24 (permalink) Old 02-23-2007, 09:32 PM
 
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my old unibody truck ran 8.5 1/8 no problems with slapper bars open rear w/ 2.60s . The faster it got the more cage ,supension upgrades.$$$$
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post #7 of 24 (permalink) Old 02-24-2007, 02:32 PM Thread Starter
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Well I was wanting to build a 545, TFS headed, soilid roller then maybe a little nitrous on top of that.

I'm thinking now of maybe a 466 or 514 with budget TFS heads or Iron heads wiht a hyd cam or soild lifters. With this setup I might not have to have another transmission rebuilt or have so much hp that the truck has to have complete roll cage! I also have this nice 3" exhaust that we made that is hooked to 1-3/4" headers.
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post #8 of 24 (permalink) Old 02-24-2007, 02:35 PM Thread Starter
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Quote:
Originally Posted by slowbrick
my old unibody truck ran 8.5 1/8 no problems with slapper bars open rear w/ 2.60s . The faster it got the more cage ,supension upgrades.$$$$
I have a feeling next time out I will run 8.9's with this engine. I am going to try a 850dp, light wheels and slicks, no 15-20mph head wind! It ran 9.4 with a 750 vacume secondary and 235/75R15 tires with a 2.1 60ft. So I see no reason for it not running 8's.
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post #9 of 24 (permalink) Old 02-24-2007, 02:59 PM Thread Starter
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This is some pictures of where the truck is at right now.






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post #10 of 24 (permalink) Old 02-26-2007, 09:19 AM Thread Starter
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Bump for me!

Come on I'm trying to decide between iron heads and aluminum heads.

On one hand I could have a soild 500hp Iron head engine. (total engine build would be a little less) plus have the cool factor of being iron headed

Or

Aluminum headed TFS 500hp with the room to grow, save about 80 lbs off the front and have cool aluminum heads!
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post #11 of 24 (permalink) Old 02-26-2007, 10:48 AM
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Jones,

Back in the day I had a 78 LWB with a 429 putting out around 450HP. After a few years of running her hard. My cab and my bed were starting to go different directions. There was a little twisting going on.

Nice looking truck by the way..

Glenn
post #12 of 24 (permalink) Old 02-26-2007, 12:43 PM Thread Starter
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Thank you, I wish I could make it look better, but I can't find a body shop that wants to work on it! Everyone rather do insurance work and not mess with restoration. I had one body shop tell me it had been years since they done a complete body paint job.

I have kind of lost my direction I am wanting to go with the truck now. I'm thinking of finishing up what little I have left and just leave it like it is. Set back, regroup and see what happens. (In other words, I have ran out of money for now!)
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post #13 of 24 (permalink) Old 02-28-2007, 12:50 PM
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The motor that is in my 96 Mustang used to be in my 79 Bronco. I had ~500 hp and the C6, Dana 60, and Dana 44 never had a problem twisting things up. Actually, I did break a axle once. Then, I upgrade to 35 spline and Detroit.

Have a good day!
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post #14 of 24 (permalink) Old 02-28-2007, 05:05 PM
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Quote:
Originally Posted by psquare75
I prefer the "change things as they break rule". :lol:
That's what I call "testing parts to failure threshold". :lol:

The older I get, the smarter Dad was.
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post #15 of 24 (permalink) Old 02-28-2007, 10:23 PM Thread Starter
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Quote:
Originally Posted by Maverick
Quote:
Originally Posted by psquare75
I prefer the "change things as they break rule". :lol:
That's what I call "testing parts to failure threshold". :lol:
Oh I am testing some parts!

I have a 4,540lb truck with a 2,600 stall, slicks and 28 spline axles with a mini spool. You might could say I am testing my axles!
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