Ok so yesterday i was changing my oil and my belts and i had been telling myself to change my Nismo CAI for a short ram so i did a little bit of surgery and i removed to two lower parts of the intake and pretty much just moved up the filter. So now the question is from me switching from cold air to short ram and improvements now i know intakes dont do much for our cars but i know my car is a lot louder and i feel my rpm's jump a lot faster now i wanna know if its me or it actually did give me a little more power? Let me know what you guys think. Thanks.

 

Low end should be a little bit better - simply the engine doesn't have to reach as far to suck in the air. You will notice better down low, but your up top will have a little fall off.

-Sean

 

Actually in theory, it's the other way around.

 

I do feel more down low alot more put i have pullyes so my top feels the same. i feel that my torque has increased.

 

Here the CAI or intake topic begins to be beatin to death - again. Simply think of it like this jeff. If you put a short straw in a glass of water and suck on the straw, you will be able to drink the water faster. Less volume to fill.

If you put a long straw in a glass of water and suck on the straw, you will have a delay in time before the water gets to your mouth.

Same goes for an engine shorter tube = less time have to gasp for air equaling in better responce and low end torque and power.

Longer tube = longer time have to gasp for air, but once filled allows for more air volume and higher end power and torque.

-Sean

 

Uh no. Your explaination directly contradicts all exhuast flow tube/size theory I've learned. Which applies here. Just on the intake side.

Ask any hotrodder which is better for low/high end. Long tube headers or short tube.

 

Long tube headers? Isn't that an exhaust jeff? what are you even talking about now? Now your saying that since it takes less time to get the air in it takes longer to get it out and thus loosing power down low????

-Sean

 

Which does apply here. Because it's gas flow theory. Doesn't have that much to do with time IMHO

 

whatever - every time we discuss air intakes your theory changes. Anyone on here should be able to tell you that CAI = more power in the high end and a short ram = more power down low.

In fact i can apply this to real life every time dan and i race at the strip. He will jump on me off the line by the 1/8 mile i have realed him in and by the 1/4 mile im about a car length ahead of him. Difference in cars. He has a short ram and i have a CAI. Its beyound obvious that short rams give more power and less delay down low and that CAIs give more up top, but with a loss down low.

-Sean

 

Where has my story changed? Proof? Link?

Dave also agrees with me.

 

Sorry - looked it up and it wasn't you. In fact i couldn't find out who it was, but i was reading our post a long time ago and it seems as though i mixed up my data. CAI for down low and short ram for up top according to dave b.

It still doesn't make sense to me though. If you go to physics 101 the CAI vs short ram topic defies physics.

Let’s say you take a CAI and submerge it in water. You then take a short ram air intake and submerge it in water. If you took both cars and had them hardwired together to 100% open throttle the short ram engine would hydrolock faster than the CAI. Reason being that the CAI has more volume to fill so it takes longer for the engine to breathe in the water. Same would apply for air it would take longer for the CAI to breathe in more air than it would for a short ram thus resulting in delayed acceleration.

Every car G or Z that i have raced at the track ALWAYS takes me off the line (my reaction times were even better), but by the 1/8 mile i have pulled them back in and end up beating them down the 1/4 mile by X amount of time.

The Z that i always race has a borla exhaust, 5/16th spacer, and short ram intake.
My g has stillen exhaust, 5/16th spacer, and CAI.

Like i said he beats my to the 1/8th mile i beat him down the 1/4 mile.

Just doesn't make since to me

-Sean

 

You theory MIGHT hold true if both cars were turn off and then ran WOT. But both cars are running already so you theory isn't valid.

Study some exhaust system theory. It would be much clearer to you. Really

 

Linky?

-Sean