What's up guys!

I took my Max to the dyno for the first time in my life. I made 3 runs.

run #1 = Factory setup. (i blocked the oscai opening tube with duct tape to disable it)
200 hp, and 192 lb of tq.

run #2 = OSCAI (I removed the duct tape to activate the OSCAI)

198 hp and 189 lb of tq.

At this point, I'm thinking something must be not right, how can I lose power with OSCAI? So the guy gave me a freebee run.

run #3 = Factory setup again. ( I duct taped the opening again to return the car to stock stage)
197 hp and 188 lb of tq.

I decided to disregard the first run. It was a glitch. The first run and the last run should be identical cause i disabled the OSCAI for both runs, but there is a big discrepancy. Maybe the dyno needs one preliminary run before it gets accurate. The last 2 runs are consistent.

Conclusion, OSCAI is good for 1 hp and 1 tq!

 

Do you have a K&N drop in or just the OSCAI tube?

 

The benefits of the OSCAI will not be brought out in a dyno. You need to be moving, right?

 

That's EXACTLY what I was thinking.

 

in order for OSCAI to work, the car must be moving, which creates a flow of air moving towards the filter. So basically, if your car is running, you should have more power the faster you go because of the force of air boosting into your intake chambre!!!

 

well if it's perpendicular to the ground then no, you should lose power. the highpressure coming from under the car will suck out the low pressure air from the oscai tube (just like an air brush) so i hypothesize that it will actually decrease teh performance of the car.

 

No. I don't believe that having the vehicle in motion would provide any more benefit to the OSCAI than it would to a Place Racing CAI, ram air scoops notwithstanding.

Frankly, I'm more interested in track results than dyno results. Those who have installed an OSCAI/K&N Panel Filter combination have reduced their quarter-mile ETs by an average of 2/10ths of a second. That's good enough for me.

 

I don't know if this is a good time but I ran 15.5 @ 90.6mph tonight at the track, and I would also like to mention that is was 90 degrees. All I have done to the car is OSCAI w/ K&N panel filter.

 

cold air intakes really don't show big differences on a dyno. As many have said already, the car needs to be moving and air needs to be flowing in to the intake. Track results are a better measure of this. Thanks for the dyno results though!

 

I'm not sure an OSCAI qualifies as a cold air intake since the tube is merely hanging in the engine bay. So, a moving vehicle would play no part. This could be debated if the tube were hanging below the car, but most are just "dangling".

So, I ask if the test were done with a K&N drop in filter in additon to the additional tubing?

 

My best ET's

15.9 stock
15.6 OSCAI
15.47 JWT intake (cold day)

 

Well that dyno just shows me that a k&n will give a 1hp/1tq gain over stock filter. With the oscai tube installed properly in the bottom splash guard and while the car is moving forward you are going to be seeing the true gains. These real gains could only be simulated on a dyno if you had a speed regulated fan blowing air up the oscai tube. That is the true way to dyno test of a CAI of any sort!

I have a thread going for pop charger owners to take a look at....please leave your feedback on that thread.

http://forums.maxima.org/showthread.php?threadid=51267