Without changing cranks and pistons? I know it would help.. but would it shorten the life of a stock motor tremendously? I just want someting to play with on weekends but i do not want to blow it within a month or so..
2007-01-25 06:03:05 · 14 answers · asked by http://www.BiminiTops.biz 3 in Cars & Transportation ➔ Car Makes ➔ Chevrolet
Big block engines from Chevy are right on the edge of self destruction. Economy vs. efficientiency has plagued this engine for decades. The main gripe lies in piston design. Engine duty has such a wide range of parameters that no general definitions of use can explain any one type of operational conditions. Marine engines are spec'd in such a way that comes closest to your use. Caution must be exorcised to allow this stud to cool properly when fully enguaged.
2007-01-25 11:38:32 · answer #1 · answered by racer123 5 · 0⤊ 0⤋
Don't do the NOS fool stuff... If you are going to do it, do it correctly to prevent killing that nice crate motor.
Single port dry shot (just NOS into the intake) isn't really worth the time or money to talk about.. so lets not.
Best is a multi-port wet shot just before the head. Each cylinder gets hit with both NOS and more fuel to prevent the leaning out and overheating of the cyclinders.
With this use a window switch to only allow a shot at predetermined RPMs so you can't shoot near redline and blow it. hooked to a WOT (wide open throttle switch). This way you need to be wide open and in the RPM window.. leave those perimeters and the shot stops.
These kits can be bought from any of the big NOS stores online and even Summit Racing online. Follows the install instructions or have someone do it...
When it is done right you can should be ok with upto 150 shots (an extra 150 HP)
Have fun.
2007-01-25 06:25:54 · answer #2 · answered by shovelkicker 5 · 1⤊ 1⤋
The other posters are right. It takes a well thought out setup ($750-$1500) to run NOS and live. You've got to supply extra fuel (dedicated fuel system). You need a smart ignition system like MSD or Mallory. The ign system has to take timing out (2 degrees for every 50 HP of NOS), act as a rev limiter, provide accurate timing, and put out enough power to light the high pressure mixture. You also need the WOT switch, gauges, emergency shut-off, etc. Add the fuel system and the ignition system to the cost of the NOS plate system. It gets expensive quick.
NOS provides extra oxygen. Thats all it is. It provides an oxygen-rich atmosphere that allows the addition of extra gasoline. If you do not add the proper amount of gasoline, the NOS super-heats the cylinder. The extra oxygen then acts like a cutting tip on a torch. It will burn a hole through the pistons in a second.
If you try to run a cheap plate system without improving fuel and ignition, you will destroy the engine.
2007-01-25 10:28:32 · answer #3 · answered by electron670 3 · 0⤊ 0⤋
Nitrous burns EXTREMELY lean. There are bolt on kits available to give it a little boost. If you want to be dramatic, it costs more.
Do a little research. It is important that you actually rich en the gas air mix when nitrous is being used. Get a tole free number from the company you are considering and talk to the tech.
HEAT in the combustion chamber and over-all engine temp will be the main concern. (Provided you are not winding it up too high)
If you have some miles on it you may want to reconsider this.
2007-01-25 06:14:57 · answer #4 · answered by RICK C 2 · 0⤊ 0⤋
Get a extreme fuel pump, a Nos cam, and retard your timing this will let u run a bigger shot of nos a 150 shot is good hp but still safe to run ran it on my 454
2007-01-25 09:06:14 · answer #5 · answered by tino_tad 1 · 0⤊ 0⤋
Under normal driving you probably won't notice any detonation because the engine is not building compression at low RPM. Where you would run into problems is if you really started pushing the engine, and under those circumstances you might not hear the detonation. I would definitely use octane boosters, 12.5 is more compression than can be handled by 93 octane.
2016-03-29 02:15:59 · answer #6 · answered by Anonymous · 0⤊ 0⤋
you should be able to as long as the compression ratio is 9:5 to1 or less and you don't get crazy with a huge shot of nos, something like a 50 or 100 shot should be ok.
2007-01-25 06:11:56 · answer #7 · answered by mister ss 7 · 1⤊ 0⤋
On a big block you should be able to run a 175-200hp wet shot with no problems. We're not talking weak 4 bangers here, a big block can hold it.
2007-01-25 06:26:52 · answer #8 · answered by B.C. 4 · 0⤊ 0⤋
just make sure to not hit the nos below 2500 rpm.
2007-01-25 07:30:45 · answer #9 · answered by Anonymous · 1⤊ 0⤋
nos is lazy, port and polish and let her breathe, stroke her, cam her, gear up and she will kick butt for a long time.
2007-01-29 14:47:05 · answer #10 · answered by Randy B 1 · 0⤊ 0⤋