Viability of aftermarket CAC (Wagner testing and installation inside)
04-05-2014, 06:17 PM
#11
I just did a test on my truck with B intercooler and lower deflector plate installed. I'll start a thread with pictures. I monitored iat2 for 1.5 hours of steady driving at 60 and 70 mph at a steady outside temp of 71degrees. Iat2 never dropped below 87 degrees. Did a 0-90 run, iat2 started at 95, at the end of the run it was 140! At that rate I just just a soon run without an intercooler
04-05-2014, 08:50 PM
#12
I just did a test on my truck with B intercooler and lower deflector plate installed. I'll start a thread with pictures. I monitored iat2 for 1.5 hours of steady driving at 60 and 70 mph at a steady outside temp of 71degrees. Iat2 never dropped below 87 degrees. Did a 0-90 run, iat2 started at 95, at the end of the run it was 140! At that rate I just just a soon run without an intercooler
04-07-2014, 01:22 AM
#13
This is part 4 of a multi-part thread.
Closing thoughts. Everyday usage on the stock CAC is probably sufficient for the standard user. Clearly the IAT portion is a no-brainer for those pushing their truck with hard launches, increased tuning, or taking runs down the track. I do question the actual "performance gains" you will see by just plugging this component in.
My reason is this:
On the Pre-CAC 0-80 MPH runs, it took 9.296 seconds and 10.749 seconds to reach 80MPH. On the post-CAC runs, it took 9.681 and 10.584 to reach 80MPH. This also checks with the early testing I did from 0-60. Going back to my first test (linked before), I did some testing with 4x4 engaged was able to achieve a repeatable 5.40 second 0-60MPH. After installing the CAC, the fastest 0-60MPH I got was 5.84.
This is probably due to the increase in total CAC footprint and it taking a slightly longer time to generate the same boost pressure the stock unit was seeing. If you take a look at the boost curves in part 3 (green), you will see there are very close to identical. The Wagner runs yielded just a slightly higher spike in initial boost, but overall the boost was pretty close to the same as the stock CAC.
The gains are probably going to be centered around the lower and consistent IAT at WOT. As the lower number is maintained, the ECU will likely try to start pushing stronger timing. Honestly though, I believe the big gains you would expect to see would have be done through custom tuning. Nothing else I've seen so far has shown any significant increase in overall horsepower by just bolting this on.
What about condensation? Well it is obviously too early to tell on the Wagner unit but here is an interesting note on the stock CAC:
After running the crap out of the truck (several WOT runs), and removing the CAC the following morning, there was still moisture in the stock CAC:
Closing thoughts. Everyday usage on the stock CAC is probably sufficient for the standard user. Clearly the IAT portion is a no-brainer for those pushing their truck with hard launches, increased tuning, or taking runs down the track. I do question the actual "performance gains" you will see by just plugging this component in.
My reason is this:
On the Pre-CAC 0-80 MPH runs, it took 9.296 seconds and 10.749 seconds to reach 80MPH. On the post-CAC runs, it took 9.681 and 10.584 to reach 80MPH. This also checks with the early testing I did from 0-60. Going back to my first test (linked before), I did some testing with 4x4 engaged was able to achieve a repeatable 5.40 second 0-60MPH. After installing the CAC, the fastest 0-60MPH I got was 5.84.
This is probably due to the increase in total CAC footprint and it taking a slightly longer time to generate the same boost pressure the stock unit was seeing. If you take a look at the boost curves in part 3 (green), you will see there are very close to identical. The Wagner runs yielded just a slightly higher spike in initial boost, but overall the boost was pretty close to the same as the stock CAC.
The gains are probably going to be centered around the lower and consistent IAT at WOT. As the lower number is maintained, the ECU will likely try to start pushing stronger timing. Honestly though, I believe the big gains you would expect to see would have be done through custom tuning. Nothing else I've seen so far has shown any significant increase in overall horsepower by just bolting this on.
What about condensation? Well it is obviously too early to tell on the Wagner unit but here is an interesting note on the stock CAC:
After running the crap out of the truck (several WOT runs), and removing the CAC the following morning, there was still moisture in the stock CAC:
Thanks Mark.
04-08-2014, 01:58 AM
#18
04-08-2014, 02:11 AM
#19
Agree with what engineermike stated, it isn't that hard. Take a look at post 5, I have a video there showing it. I'd say the hardest is just taking your time with guiding it out so you don't bend the fins up. I put a slight bend it one corner just by grabbing it the wrong way, so it's doesn't take much. So yeah it is quick, but definitely not something I would want to do every weekend!
Last edited by Justus; 04-08-2014 at 11:19 AM.
04-09-2014, 01:50 AM
#20
Agree with what engineermike stated, it isn't that hard. Take a look at post 5, I have a video there showing it. I'd say the hardest is just taking your time with guiding it out so you don't bend the fins up. I put a slight bend it one corner just by grabbing it the wrong way, so it's doesn't take much. So yeah it is quick, but definitely not something I would want to do every weekend!
Thanks Mark.