Weapon R intake

[Vmontanez2209]

Is this weapon R cold air intake system good...

http://www.carid.com/2011-honda-cr-z...html#allReview

And does anyone know how much more Hp and mpg?

[Madcow]

The main reason you never see a HP or MPG graphs on air filters is because most of the so called air intake systems are total BS.. Let the flaming begin!!! Before you post OH NO my K& N bla bla bla more horse power bla bla bla ….. do yourself a favor and Goggle auto filter systems. Not the hype found on the sales sites. Look for actual side by side EOM vs. aftermarket independent studies. Some minor HP gains may be achieved with these systems by removing a bend or two in the intake pipe. However!!! You’re actually doing your engine a dis-service by putting a filter in that uses less surface area but, allows more air flow. Anyone ever hear “ the dirtier the filter gets the better it cleans the air “ when receiving the sales pitch on the rechargeable filters? How much dirt gets by the filter until it gets dirty enough to clean better? NONSENCE!!! If you TRULY want more power, AND want to keep your engine clean, simply get a LARGER filter and filter box, straighten the intake hose, and feed it with cold air from outside the engine compartment. Colder air makes for a denser air/fuel charge.. so you get a BIGger BANG !!! bigger explosion= more power.
oh.. Ever wonder why the trucking industry doesn't use that kind of filter..? Over the corse of a truck lasting 1 million miles, dont you think an extra 5 hp would mean BIG bucks in savings for a fleet of say.. 5000 trucks? More efficent engine = less fuel burned. Follow the money people.

more info:

check the graph near the bottom.. ouch poor k&n owners.

http://forums.nicoclub.com/debunking...r-t180100.html

[northbridge]

oy.

[Scotty001]

Madcow would of probably created more excitement if it was posted on the K&N thread.

K&N Air Filter?

I don't think it answered the OP's question.. Bump for additional responses... to help OP out..

[northbridge]

weapon r used to make "bad" parts. allegedly their parts are better quality now and there are less reports of failure.

also, that picture is not the actual CRZ intake. For the price I think you should spend a bit more and get the turbo kits intake. I have it and I have no complaints. Unlike previously posted it does give a noticeable power increase

[gsilvers]

@the op, the weapon-r header I had on my sentra b4 I turbo'd it was very good their intake however worked ok but eventually the little mount that was welded on that held the cold air portion to the fender broke after about a year. That actually prompted my turbo so its a good thing lol. They are cheaper though so you can expect that. I also autocrossed that sentra and drove it like a bastard so you may do better.

@Madcow I'm not sure if I get your point in comparing the diesel truck fleet to a personal vehicle? The goals are completely different and for an enthusiast 5 horsepower and some noise is probably worth trading 200k mi vs 250k mi on the engine life. It's really comparing apples and oranges.

[Madcow]

Sorry it was a bit of a jump from a small car to a big truck. The point I was trying to make is, if these filters were so great, they would have made their way into commercial use. It was a very broad change of thought that having more horse power saves fuel. Because you don’t have to press the peddle so hard to move the load, you have a savings in fuel cost. The money saved by getting better mileage means bigger profits. Multiply that by 5000.... If these things worked so great, you’d see a bunch of bean counters screaming to have them installed.. get it? Follow the money.

If you’re willing to sacrifice you engine to get more horse power, then why run a filter at all? My problem with these filter companies is they are claiming to have the holy grail of better mileage and adding power while protecting your engine.. It's on its best day a compromise.. oh and the best part.. you get to pay for it. I mean REALY pay for it. A tiny bit of horse power, ( maybe ) for a PILE of cash.. Feels like I'm being lied to. I suppose that’s my bigger problem. I HATE being lied to.

[RedefinedCRZ]

Originally Posted by Madcow

The main reason you never see a HP or MPG graphs on air filters is because most of the so called air intake systems are total BS.. Let the flaming begin!!! Before you post OH NO my K& N bla bla bla more horse power bla bla bla ….. do yourself a favor and Goggle auto filter systems. Not the hype found on the sales sites. Look for actual side by side EOM vs. aftermarket independent studies. Some minor HP gains may be achieved with these systems by removing a bend or two in the intake pipe. However!!! You’re actually doing your engine a dis-service by putting a filter in that uses less surface area but, allows more air flow. Anyone ever hear “ the dirtier the filter gets the better it cleans the air “ when receiving the sales pitch on the rechargeable filters? How much dirt gets by the filter until it gets dirty enough to clean better? NONSENCE!!! If you TRULY want more power, AND want to keep your engine clean, simply get a LARGER filter and filter box, straighten the intake hose, and feed it with cold air from outside the engine compartment. Colder air makes for a denser air/fuel charge.. so you get a BIGger BANG !!! bigger explosion= more power.
oh.. Ever wonder why the trucking industry doesn't use that kind of filter..? Over the corse of a truck lasting 1 million miles, dont you think an extra 5 hp would mean BIG bucks in savings for a fleet of say.. 5000 trucks? More efficent engine = less fuel burned. Follow the money people.

more info:

check the graph near the bottom.. ouch poor k&n owners.

Debunking the K&N Myth - Why OEM is Better : Nissan Articles

Those graphs are just saying the K&N traps less dust, but it flows better.... makes sense right.

I have also been told that the K&N works better over time as far as flow and dust trapping ability. I am not sure if that is true at all, but at one point I saw graphs proving that.

[RedefinedCRZ]

As far as Weapon R, honestly it is hard to mess up a CAI or or SRI. They do not take rocket science to make. You most likely could build a Short Ram Intake with out engineering it at all and it work just as well as a engineered one. However the CAI takes a bit of engineering to get it to flow the most effectively and so it does not mess up the MAF sensor. Other than that I say look at the graphs, buy who ever has the least expensive one.

[daveczrn]

I had to register for this forum for a few reasons, one of them being this thread, and two because i am in the market for a new car and the CRZ is one that i am looking at.

Originally Posted by RedefinedCRZ

As far as Weapon R, honestly it is hard to mess up a CAI or or SRI. They do not take rocket science to make. You most likely could build a Short Ram Intake with out engineering it at all and it work just as well as a engineered one. However the CAI takes a bit of engineering to get it to flow the most effectively and so it does not mess up the MAF sensor. Other than that I say look at the graphs, buy who ever has the least expensive one.

It is more complicated than that to just build a air intake and put it on a car and it will work. If the sensor is in the wrong place you will not get the air flow over the sensor and it will make the car run lean. Not something you want to happen. It does take some engineering to get right. Ever see wind tunnel testing where they show high and low pressure area's around a vehicle? same goes for inside an air intake. The sensor does need to be in the right place. you can even make the car run rich which would defeat the purpose of the intake in the first place. Yes flowing more air can make it more efficient but just flowing the air is not enough. the airflow across the sensor needs to be consistent which is why there is restriction in a stock air intake to begin with. as airflow requirements of the engine change(rpm) so does the high and low pressure area's inside the intake.

Originally Posted by RedefinedCRZ

Those graphs are just saying the K&N traps less dust, but it flows better.... makes sense right.

I have also been told that the K&N works better over time as far as flow and dust trapping ability. I am not sure if that is true at all, but at one point I saw graphs proving that.

You should have read the entire artical. Yes the K&N filter does not let as much dirt particals through over time, but this is only because it's airflow goes down drastically. If its flowing half the air it did when it was new and only letting in half of the dirt it did when it was new, is it really any better?

The best cold air intake would have room for a larger air filter. you could still have the same size airbox to install a larger filter. would you rather have a AC delco air filter that is twice the size as a K&N filter to flow the same amount of air and trap about 10x's the amount of dirt particals or just use the K&N one because it's cool?