Hello, are there any good or bad points in using Nitrous Oxide in a High Performance 460ci as i am thinking of having it installed when my rebuild is complete,Horse power should be in the 500-550 range, parts purchased so far are H-Beam Rods, 401 dome pistons ( 11-1 Compression ) Victor Intake 2966 , 950cfm Holley. 3/8 manley push-rods guides & Studs, Comp cams Pro Magnum lifters, Ford Racing Hydraulic cam 595/621 lift.( Head Ports opened up- 2.25 inlet & 1.76 exhaust valves ) is Nitrous a good or bad thing... How does it work ???

 

nitrous will drastically reduce engine life... if you want to have your engine last more than a year (or if you put a large shot of nos- a minute) i wouldnt use it... thats one big reason to go with a big motor- you dont need power adders to get big power. if your 550 horse isnt enough for you, you can build a stroker and get alot more. if you insist on using nos the biggest thing you need to do is keep it from detonating... the oversize carb is a start on that... but you also need some serious timing retard- especially since youre already borderline on compression. basically the way you have your engine built and with the amount you spent on it already you dont want to grenade it by putting a little too much nos on it, but its up to you what you do. all i can do is offer my advice.. and mine is dont do nos

 

just need to make sure the fuel system will keep up and pull 2 deg timing out for every 50 horse of the shot.100 shot,4 deg timing out.with that much compression and nitrous,may want to run race gas.

 

Thanks Guys, I think its best to stay away from it then, especialy if it reduces engine life...

 

Jamie, just build a big enough engine you don't need it, I love the look on guys faces when they realize they just got beat by a naturally aspirated Ford, it's priceless.

 

If you do that you not only don't have to worry about melting down your engine, you also don't have to mess with bottle refills.

If you notice from what everyone is saying, you have to de tune the engine slightly to allow the use of a power adder. I'm guessing your only going to use the nitrous every now and then. So under the rest of the 99% time why would you want to drive an engine that's not at it's full potential?

At the track is a good spot for nitrous.
You have a motor that will be a monster, it won't need any help

Just my opinion too.

 

there are ignition boxes that pull timing out(an adjustable amount) when the nitrous is armed and returns to the standard setting when it's off.a msd digital 6 is one and there are stand alone boxes that would work with the stock ignition.

i personally don't run nitrous,now anyway,but i don't think there is anything wrong with it if tuned properly and the fuel system is up to the task.run out of fuel
= a bad day with nitrous.

 

Guys, I did only plan on using Nitrous once a year, as a family member drives a performance car with a 350ci chev who has invited me to race once my rebuild is finished, Im pretty sure the Mighty 460ci would win , but i just wanted to make sure... thats why i was thinking of the Nitrous use.

 

sometimes all it takes is once to completely screw an engine... i personally wouldnt chance it

 

Keep in mind most trucks weigh in over 4000 lbs. So his 3200 lbs car may still win in the end. You have to concider gearing and drivetrain setup as well to beat that. Ask him to race rear bumper to rear bumper. The first one to lose a bumper gives up their ride. LOL Now that is braggin rights.

 

Hello Airharley, The 460ci I am rebuilding is going back into my Ford Falcon ( 1984 XE Sedan ) the car weighs 1'550 kilo's. It runs a 4 speed Toploader gear-box with a 9' rear 31 spline axles 3-5 ratio, as I found before it was a little slow off the mark, but on the freeway it was very powerful, I put it down to the extra weight of the big 460ci engine, As I am in Australia I posted some pictures on the Galleries of my Falcon so that you can have a look, Regards Jamie.

 

Well in that case have fun stomping on him. Sorry for assuming it was in a truck.

 

if it was slow off the line, what rpm did you let the clutch out at? you may not be revving hard enough off the line... with the cam youve got its probably around 240 duration @.050... which means youve got to revv it pretty hard- around 3500 rpm- to be into your powerband... if you let the clutch out then youd probably smoke the tires off... this is why most performance car people run automatics with stall converters... they let your engine revv to the cam's powerband before launching... so full power is available without worrying about smoking your clutch

 

Nice sleeper

 

Hello darrin1999, When I had the 460ci in the car before it was completly stock,when i purchased it, it was a fully reconditioned long crate motor,so i am lead to belive camshaft lift was around 400 inlet/exhaust, this engine rebuild wont be finished for a couple of months but Im sure all the performance parts I am adding should make a big difference , as the car is mainly for freeway use thats why i choose to go the 4 speed Toploader Gearbox over a Auto, Im not really into drag racing , Just old muscle cars . But when I was invited to race thats what made me think of the Nitrous use, but Im 99 percent sure the big Ford 460ci would defeat his 350ci Chev as both cars weigh about the same..