jwt pop sucks! (hot air)

don't get me wrong i think the jwt pop is a quality piece , but in the summer my car runs better with the stock box than the jwt. i live in jersey and we just experienced a 100 degree heat wave. In the summer i can't even put my hands on that filter. that chrome cap at the end of the filter is blocking the air coming into the intake system . the air lead is right in front of it and i have the coolant resevoir right there. i recently put in a weapon r intake which is a bit smaller but has more filter area (the end is not sealed) and the car is much stronger now. i g teched my car with the jwt, it's a 2000 g by the way, and i couldn't do better than a 16.3 but after installing the weapon r the times dropped to about 16.0 @85mph a 3mph improvement. i know 2 or 3 tenths may not seem like alot but i swear u feel it . in the winter i'll go back to the jwt, it's definatly louder and looks a hell of alot better. the diffrence between the car's performance in the summer compared to the winter is incredible. At englishtown i run 15.9 all day in the winter which i think isn't that bad considering we have almost 300 pounds over the sentra se which sport compact car clocked at a 15.7 one time.

yeah, we really need to get cooler air from the fender area, not from inside the hood. :o

everyone I ask say's to get the Hotshot Cold Air Intake. They say it add's about 15 hp...

Originally posted by wickedG20
everyone I ask say's to get the Hotshot Cold Air Intake. They say it add's about 15 hp...

It actually makes only about half of that. The header will get you about 15 hp.

i think U guys need a cold air intake similar to what K&N supply with their kit.........feeds air to the cone from under the car.....
will post pictures soon.........:smoka:

The problem is that the cold air feed only really works when you are moving. When you are stationary or moving slowly, it has no effect at all.

The air feed effectively only directs moving air into the bonnet area, rather than sucking air into the bonnet area. Spot the subtle difference?

Actually, even though the air is slight bit cooler at the ground, this is not what makes the HP.


You actually make more HP do to the fact that the intake is longer and funneling the air harder and faster into the intake manifold.


They should rename "cold air intakes" to "long air intakes" ;)

K&N dyno test the filters with the hood up, thus the cold air. In real world situations (especially summer), hot air is being sucked in your engine, this will give you no advantage and will probably suck power out of the engine. It may also be bad for the MAF.

Also K&N's filtering of microscopic elements is questionable. See this link

http://forums.tdiclub.com/cgi-bin/ultimatebb.cgi?ubb=get_topic&f=17&t=002361

I know they use K&N for some stock cars (Mustang Cobra, etc.) so they can't be that bad?? I had use K&N cone filters on my previous cars (Q45, Ford Probe GT, Toyota Celica) with no problems.

bonnet vent above the cone can also help........

Other than installing a vent in your hood you could also run a hose (similar to a dryer hose) from the wheel well to the cone and a second from the fron bumper to the cone...I've done it to all the cars I've modded and it helped out.

Originally posted by zykotik
Other than installing a vent in your hood you could also run a hose (similar to a dryer hose) from the wheel well to the cone and a second from the fron bumper to the cone...I've done it to all the cars I've modded and it helped out.

This won't work anywhere near as well as a CAI. As Boogie wrote, the bulk of the gain from a CAI is from the harmonic resonance of the long tube.

While cold air will make more power, some folks on the SE-R list did some data logging and found the air temp near the K&N cone filter of their POP Charger was near ambient while the car was moving. So, the effect of colder air is minimal since the temp difference is pretty slight.

I have a hose (cold air feed) running from the bottom of the car to the cone as shown in the following pics.....
I think this is still better then having nothing....specially as it doesn't cost anything:flash:

as seen from under the cone

RagT20

What type of intake is that and who is it made by. I had never seen one like that. I currently have the $tillen model on my '96 G20 which is a large metal cast intake. I like the fact that there is a particle screen on the end of the intake for larter particle to be blocked from entering the MAF.

:silly2:

Acutally that screen is stock w/ the newer Nissan MAF's


My 2000 US-spec has that screen stock. It seems restrictive, I was actually thinking of removing it... :rolleyes:

I have a K&N kit ....they inc the cold air feed hose and fitting instructions with it