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  1. Vipersix

    Which type/size headers do I need?

    Agreed. I tend to get carried away with things sometimes. But as I said at the end, most people completely ignore this concept because it is not practical. Oh, and apparently there is at least one on here... That's funny, because there is no way you are going to convince me that a cam guy...
  2. Vipersix

    Too much power?

    One hundred million hp!!!
  3. Vipersix

    Which type/size headers do I need?

    The answer to everyone's questions all comes down to accuracy. You basically need to ask yourself how accurately you want your exhaust system to match the motor. If you have no idea what cam you're going to choose and still have plans to add more go-fast parts and tweak and tune the motor in...
  4. Vipersix

    What size do i need?!!!!

    I'd recommend no less than 30# and a blah blah blah throttle body around 70mm.
  5. Vipersix

    Will stock fuel lines feed this engine ok?

    You've got plenty of breathing room on your combo.
  6. Vipersix

    Running no thermostat?

    Not a good idea. The whole purpose of maintaining a temperature in the 180 degree range is to assist with combustion. If you'll notice, as a car warms up it goes through a warm-up routine in which the fuel is enriched to overcome the inconsistencies in the combustion chamber. Once the motor...
  7. Vipersix

    megasquirt a good option??

    Umm... the firing order for the injectors is pretty much a moot point. As soon as you exceed around 4500 RPM sequential injection doesn't really make a difference anyway since the dwell time is so small. The vital aspect of having a cam with a different firing order is the spark! You wouldn't...
  8. Vipersix

    My 351 build with pics

    Good luck on that. Make damn sure you have a complete plan before you buy too many parts and make the same mistake that I'm sure many of us have made in the past. Trust me, it's no fun selling your brand new parts at a swap meet for half the price you paid simply because you're a moron and...
  9. Vipersix

    mac longtubes

    A 2.5" exhaust would actually be better suited for a 347 n/a motor and you may even gain some power. It would obvioulsy be best to have a complete 2.5" system since every bend and diameter change affects the airflow and resonance (e.g. back pressure) of the exhaust, but it won't be detrimental...
  10. Vipersix

    Tiny leak at front of drivers side head?? Help....

    A compression check would be a quick and easy verification, but I don't believe your head is the source of the leak. Likely you have a break in the seal from the coolant hose coming from the radiator or from the water pump/timing cover gasket. Try removing the radiator hose and cleaning...
  11. Vipersix

    289/5.0 ?

    I didn't realize someone was actually attempting to do this; just thought it was a hypothetical discussion. I would highly discourage him from building this setup. Not good in the long run. At the very least, he needs to utilize 28oz flywheel/balancer setup and hope that is enough to...
  12. Vipersix

    289/5.0 ?

    Check out this article from Mustang and Fords Magazine. They briefly mention the 28oz vs. 50oz. down at the bottom and discuss the importance of balancing closer to the top.
  13. Vipersix

    289/5.0 ?

    The rods can't possibly be the same. Engine dimensions are determined by the stroke and the bore. Since the 289 and 302 both have 4.00 bore, the only remaining factor to coax out the extra 13 cu. in. is the stroke. Stroke is determined by crank rotation and rod length. In the case of a 289...
  14. Vipersix

    question on my compression #'s

    Compression = (Cylinder Displacement Vol. + Deck Clearance Vol. + Gasket Thickness + Piston Dome Vol. + Combustion Chamber Vol.) / (Deck Clearance Vol. + Gasket Thickness + Piston Dome Vol. + Combustion Chamber Vol.)
  15. Vipersix

    How much would a roll cage stiffing a car up?

    I'm sure you will experience some stiffening with a 4-point, but how much I would be unable to say. I CAN tell you that an 8-point makes it handle like it's on rails though!
  16. Vipersix

    289/5.0 ?

    I would say no with 95% assurance. The crank is balanced to the rods and the flywheel is designed for an imbalance built into the rotating assembly. From my understanding, the imbalance is a cheaper route for mass manufactured parts than attempting a zero balance. So your 28oz crank is...
  17. Vipersix

    fuel regulators?!

    I would add a third which I base my recommendations on. It is normally a good idea to run a richer mixture under boost than you see under light loads and idle. As such, unless you have the ability to adjust the enrichment tables of the ECU itself, a rising rate regulator (or FMU if you will)...
  18. Vipersix

    fuel regulators?!

    The stock regulator, or any regulator which has a static pressure increase ratio of 1:1, is NOT a rising rate regulator. By definition, the fuel pressure must increase by an established rate - thus rising rate - as the manifold pressure increases. Mechanically, the regulator monitors the...
  19. Vipersix

    Piston info?

    The actual company name is United Engine and Machine Company; prior to that it was KB-Silvolite. KB115 (Keith Black) is the model number while SL97 (Silv-o-Lite) is the date of manufacture. Check out their website for more info.
  20. Vipersix

    fuel regulators?!

    If all you did was replace the stock pump and change the filter (and did it correctly), then you have other problems. I would suggest reading through the fuel system troubleshooting post that is floating around this forum.
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