Dyno Results.....CAI tested vs Stock Airbox
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Joined: Sep 2003
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From: ok, USA
Dyno Results.....CAI tested vs Stock Airbox
Alright, well I went to the dyno today, mostly to check the difference between the stock airbox and the CAI that I make. The stock air box did NOT have the resonator attached, so the ratings would have been a little bit worse for the stock one.
My CAI peak power is 167.3 @ 4500rpm
My CAI peak torque is 177.1 @ 5400rpm
Stock airbox peak power is 166.6 @ 4500rpm
Stock airbox peak torque is 173.2 @ 5300rpm
That is top end. On both sides, the power/torque drop off VERY rapidly after the peaks. Horsepower stays up all the way, but tq is basically dead at redline for type 1s. We have about 70tq at that time. For you type 1 manual people, you need to shift at around 5700 rpm to stay in your max power. I am going to test my car again at the track, with this meathod to see what kind of difference I get.
The LOW end of this, the differences are ASTONISHING. at 3200rpm, the difference is 21.4tq, and 13hp. at 4000rpm the difference is 13tq and 8hp. This makes sense though, because of the VIS.
The stock airbox had some very bad drops on power however. It had a 20tq drop at 3000rpm, and between 3600 and 4000, it goes down again. Horsepower also drops at 3000rpm.
With the CAI. There really isnt a major drop in tq, at 3700, it goes down 3-4tq, and then keeps going up. Horsepower is VERY linear throughout the entire test.
Also, I had the A/F ratio checked, and the CAI did not make the car run rich at all. The two graphed lines for CAI and stock airbox are intertwined throughout the tests.
I am going to get a spreadsheet tomorrow of the differences in each space, but I will try to scan the graph this evening.
I will let you all know very soon, I am going to get a Y pipe made within a few weeks, and will update to say the gains for it.
Alright, you might be able to see behind the MAX POWER part, it says 172.8 or something like that.
CLICK HERE IF YOU WANT TO SEE THE FULL SIZED PIC
My CAI peak power is 167.3 @ 4500rpm
My CAI peak torque is 177.1 @ 5400rpm
Stock airbox peak power is 166.6 @ 4500rpm
Stock airbox peak torque is 173.2 @ 5300rpm
That is top end. On both sides, the power/torque drop off VERY rapidly after the peaks. Horsepower stays up all the way, but tq is basically dead at redline for type 1s. We have about 70tq at that time. For you type 1 manual people, you need to shift at around 5700 rpm to stay in your max power. I am going to test my car again at the track, with this meathod to see what kind of difference I get.
The LOW end of this, the differences are ASTONISHING. at 3200rpm, the difference is 21.4tq, and 13hp. at 4000rpm the difference is 13tq and 8hp. This makes sense though, because of the VIS.
The stock airbox had some very bad drops on power however. It had a 20tq drop at 3000rpm, and between 3600 and 4000, it goes down again. Horsepower also drops at 3000rpm.
With the CAI. There really isnt a major drop in tq, at 3700, it goes down 3-4tq, and then keeps going up. Horsepower is VERY linear throughout the entire test.
Also, I had the A/F ratio checked, and the CAI did not make the car run rich at all. The two graphed lines for CAI and stock airbox are intertwined throughout the tests.
I am going to get a spreadsheet tomorrow of the differences in each space, but I will try to scan the graph this evening.
I will let you all know very soon, I am going to get a Y pipe made within a few weeks, and will update to say the gains for it.
Alright, you might be able to see behind the MAX POWER part, it says 172.8 or something like that.
CLICK HERE IF YOU WANT TO SEE THE FULL SIZED PIC
Joined: Nov 2001
Posts: 518
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From: in your moms bedroom in, oklahoma
Re: Dyno Results.....CAI tested vs Stock Airbox (RangerJoe)
hey your from tulsa? hell yeah. i use chis all the time for my dyno tunning.
take a look at the itr dyno. thats a buddy of mine. he made more power with his stock itr box than a aem short ram.
take a look at the itr dyno. thats a buddy of mine. he made more power with his stock itr box than a aem short ram.
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