Acura Legend Forum banner
1 - 3 of 3 Posts

·
Registered
Joined
·
595 Posts
Bringing up from the dead...

I'm getting ready to run a Zex 100 shot on a Type II coupe with P&P heads, Bayou II, WR intake and Remus. Is this at the safe threshold or past it?
 

·
Registered
Joined
·
595 Posts
rangerjoe said:
Nos is the dumbest way to get extra hp. The only time you use it, is for racing....so if thats ALL you used your car for. you only get the extra power for a matter of seconds....a turbo would be a much better idea, and it would do less harm to your engine.
:rolleyes:

Nos is among the safest ways to add power because it is not always on and continously putting additional stress on the motor. You talk about turbo like its actually an option....I'm not dumping 6g's into a custom setup that will net me the same as a $500 nitrous.

Whats wrong with it not being available all the time? The only time you should ever be spraying is OFF the public roads and at the TRACK...IMHO.
 

·
Registered
Joined
·
595 Posts
rangerjoe said:
turbos will ALWAYS give you more power. nitrous only gives you power for a few seconds.

and of course nos isnt better for your engine, ESP without modification of gaskets and whatnot. all a turbo will do, is put more air into the cylinders at a certain point. nitrous makes your engine burn A WHOLE LOT HOTTER than it is supposed to. thats what it does. a turbo will not make the engine run much hotter, because if you are halfway intelligent, you will have an intercooler.

also, if you are halfway intelligent, you wont put the boost at 20 or something.

the only thing the turbo will change, is the compression. it puts more air into the cylinder. the only way the tranny is effected, is if you try and add 150hp, in that case, you might have to get a better clutch. but you will have problems with gaskets before you have tranny problems. any good turbo kit will come with those upgraded parts though.
You are throwing around some good terminology but I don't think you understand a couple of fundamentals.

100hp boost of nitrous vs 100 hp boost of turbo

Intake temperatures will be lower with N20 becuase of the cooling nature of an expanding compressed gas. Turbo's will always heat the intake charge, even with a very very efficient intercooler (80-90%) over ambient temperature.

Lets talk about compression correctly. Compression is the ratio the fuel\air mixture is compressed on the compress stroke. Legends have a relatively high compression, thats how we make a lot of horsepower NA. When you add any kind of boost you are putting additional stress on the engine to compress the denser intake (fuel\air) charge. So in out 100N2O vs 100Turbo example both are putting nearly identical stresses on the motor. Assuming neither increase in power goes over the threshold the motor can't handle ie some internal breaks....which is better for longevity? Always having that 100 HP or only when you need it? Remember you are adding stress on the motor...

Last lets talk about what ususaly breaks a good motor. Running lean and pinging. On a high compression motor what is more likely to ping...a hotter less dense charge, or a colder denser charge? Even at the same "boost" or increase in PSI the colder charge which is what you want. A highschool chemistry class will teach you all about the gas laws and will explain how all this holds true.

So back to the application of this knowledge to our cars. DV8 mentioned that the hot exhaust gasses can't escape our ****ty headers. This is a problem ALL FI setups would face, turbo would need a new exhaust manifold anyway so this is almost moot. With N2O the kit pretty much manages the fuel setup for you. Its only running at WOT so there is little variability in its configuration, it just raises fuel pressure when active. With a turbo or supercharger you need true engine management. The fuel needs are different at 1\4, 1\2, and WOT so you need a complete spectrum of tuning.

So alas, when asking a question about the only from of FI AVAILABLE you try to chop the N20 users up. Last I checked the fastest Legend was on the laughing gas.

So, is 100 shot the ceiling or should I try to find a 75pill when I have my ZEX dry kit installed. Thanks!
 
1 - 3 of 3 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Top