Just Installed AFE CAI - Dyno Numbers
05-26-2016, 01:11 PM
#1
Racer
Thread Starter
Just Installed AFE CAI - Dyno Numbers
I just got back from the speed shop after installing an AFE CAI on my 2015 Z06 with 8600 miles. The dyno numbers are amazing.
Outside temperature was 88 degrees with 35% humidity. The dyno numbers for the stock Z06 were 573 rwhp/582 # torque which is really good and only shows a horsepower loss of a little less than 12% from GM reported 650 crank to rear wheels and 10% on torque.
After CAI install and tune, the car returned 636 rwhp/619 # torque. I'm not sure if this is accurate, but using the same differences on the stock numbers, then that should equate to 712/681# torque at the crank.
The tuner told me if the outside temperature was in the 50s-60s, that the increases would have been even more dramatic. Personally, I think a 63 rwhp is dramatic enough. These Z06s are astoundingly fast.
Outside temperature was 88 degrees with 35% humidity. The dyno numbers for the stock Z06 were 573 rwhp/582 # torque which is really good and only shows a horsepower loss of a little less than 12% from GM reported 650 crank to rear wheels and 10% on torque.
After CAI install and tune, the car returned 636 rwhp/619 # torque. I'm not sure if this is accurate, but using the same differences on the stock numbers, then that should equate to 712/681# torque at the crank.
The tuner told me if the outside temperature was in the 50s-60s, that the increases would have been even more dramatic. Personally, I think a 63 rwhp is dramatic enough. These Z06s are astoundingly fast.
05-26-2016, 01:17 PM
#2
Le Mans Master
Remember the low point for Corvettes was 180hp, so you picked up a third of that with an intake change!
05-26-2016, 02:05 PM
#3
Did you happen to do a pull with intake only? Im curious how much HP the tune actually gave on top? These intakes make so much power without the tune, was the warranty worth tossing for an addition 15hp? Unless of course you have other plans for more power adders like pulleys and headers and what not. Now personally I road course mine, not drag so after the intake I really see no reason for more power. As you said these things are so fast as it is.
Last edited by jdmdohcpower; 05-26-2016 at 02:07 PM.
05-26-2016, 02:09 PM
#4
Racer
Thread Starter
I asked for a post CAI run, but the tuner told me that the fuel/air ratios needed to be adjusted so he could not give me accurate numbers, however, the first run after CAI install was 610 rwhp, so maybe that's some indication; 37 rwhp jump.
05-26-2016, 02:17 PM
#5
Not surprising if GM left some power on the floor with this engine.
It's important to remember Dodge was able to get a very conservative 707hp from a motor about the same size as the Z's.
It's important to remember Dodge was able to get a very conservative 707hp from a motor about the same size as the Z's.
05-26-2016, 02:32 PM
#6
Indeed, but if the weather station on the dyno is properly set up, shouldn't it account for changes in temperature? So if the weather was colder it really shouldn't matter in the measurement, or so I thought.
Remember the low point for Corvettes was 180hp, so you picked up a third of that with an intake change!
Remember the low point for Corvettes was 180hp, so you picked up a third of that with an intake change!
The following 2 users liked this post by musclesbmf:
04SeaFive (05-26-2016),
Big Reds Z (07-02-2021)
05-26-2016, 05:37 PM
#7
And the same 376 cubic inches is not the same as the "same size" by a long shot.
Last but not least it cost about $10.000.00 dollars more than a LT4 to replace.
Very impressive!
http://www.moparproshop.com/inc/sdetail/12462/12670
http://www.jegs.com/i/Chevrolet+Perf...FZQjgQodbtsPSQ
Last edited by dar02081961; 05-26-2016 at 05:42 PM.
05-26-2016, 06:15 PM
#8
I noticed big change in mine after installing AFE and Borla XPipe and cat back ATak. Not through yet going tomorrow to take off small cats to help with sound and no tune. If that don't help the sound next will be headers.
Did notice more HP gains !!!
Did notice more HP gains !!!
06-26-2021, 12:36 PM
#9
I just got back from the speed shop after installing an AFE CAI on my 2015 Z06 with 8600 miles. The dyno numbers are amazing.
Outside temperature was 88 degrees with 35% humidity. The dyno numbers for the stock Z06 were 573 rwhp/582 # torque which is really good and only shows a horsepower loss of a little less than 12% from GM reported 650 crank to rear wheels and 10% on torque.
After CAI install and tune, the car returned 636 rwhp/619 # torque. I'm not sure if this is accurate, but using the same differences on the stock numbers, then that should equate to 712/681# torque at the crank.
The tuner told me if the outside temperature was in the 50s-60s, that the increases would have been even more dramatic. Personally, I think a 63 rwhp is dramatic enough. These Z06s are astoundingly fast.
Outside temperature was 88 degrees with 35% humidity. The dyno numbers for the stock Z06 were 573 rwhp/582 # torque which is really good and only shows a horsepower loss of a little less than 12% from GM reported 650 crank to rear wheels and 10% on torque.
After CAI install and tune, the car returned 636 rwhp/619 # torque. I'm not sure if this is accurate, but using the same differences on the stock numbers, then that should equate to 712/681# torque at the crank.
The tuner told me if the outside temperature was in the 50s-60s, that the increases would have been even more dramatic. Personally, I think a 63 rwhp is dramatic enough. These Z06s are astoundingly fast.
Last edited by grecoz06; 06-26-2021 at 12:37 PM.
06-26-2021, 01:08 PM
#10
Team Owner
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Others more knowledgeable than me here will chime in with what the expected gains should be with the mods you just did. But I think that’s a good call on holding off on letting them sell you another expensive package
Last edited by need-for-speed; 06-26-2021 at 01:09 PM.
06-26-2021, 01:34 PM
#11
regarding the shop specifically it's more than just the dyno numbers. They charged me 3 hours to install an mgw short shifter. I did several other things such as an alignment, DSC sport controller, have been swap out my lug nuts for black lug nuts and lowered the car about an inch. Everything seemed rounded up for billable hours. I'm by no means more expert but I think there's at least five hundred to a thousand of fat in the labor. Every time I ask a question my questions get immediately dismissed.
everybody needs to make a living and I'm always happy to pay a premium for good work , but I can't help but suspect because I'm green and it's probably obvious when I speak to them that I haven't been taken advantage of a little bit. The positive is it's forcing me to learn a lot more about tuning and just so I can speak the language a little bit more and knowing what questions to ask and not just blindly paying and trusting people.
07-02-2021, 08:37 PM
#12
I'm going to do a griptec 2.3 pully, heat exchanger (hopefully keep her cooler so I'm not cutting power) and a re-tune. Parts ordered, probably in 2 weeks. I'll report back.
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need-for-speed (07-02-2021)
07-03-2021, 02:16 PM
#14
Just had an xpipe installed and got a dyno diagnostic, not a tune yet. Guy said it looks like I have a very lean tune and I'm cutting power around 5900-6000. He said his tuning style is more on the richer side than lean.
I'm going to do a griptec 2.3 pully, heat exchanger (hopefully keep her cooler so I'm not cutting power) and a re-tune. Parts ordered, probably in 2 weeks. I'll report back.
I'm going to do a griptec 2.3 pully, heat exchanger (hopefully keep her cooler so I'm not cutting power) and a re-tune. Parts ordered, probably in 2 weeks. I'll report back.
I think for owners who install any aftermarket CAI which will impact the A/F ratio or potentially add even an insignificant more boost through opening up the inlet airflow should either consider running a higher octane mixture, can of boostane or your favorite octane booster, or get the car tuned.
it is my opinion the car would respond and make a whole lot more power if the +KR would be nearly or fully eliminated.
07-03-2021, 02:37 PM
#16
A friend has the AFE installed on his car but does not have any before and after numbers. What he did indicate is the car is leaning out resulting in considerable knock retard on 93 octane. The dyno operator suggested a tune for the car to adjust some of the timing maps and fuel trims which could obviously help.
I think for owners who install any aftermarket CAI which will impact the A/F ratio or potentially add even an insignificant more boost through opening up the inlet airflow should either consider running a higher octane mixture, can of boostane or your favorite octane booster, or get the car tuned.
it is my opinion the car would respond and make a whole lot more power if the +KR would be nearly or fully eliminated.
I think for owners who install any aftermarket CAI which will impact the A/F ratio or potentially add even an insignificant more boost through opening up the inlet airflow should either consider running a higher octane mixture, can of boostane or your favorite octane booster, or get the car tuned.
it is my opinion the car would respond and make a whole lot more power if the +KR would be nearly or fully eliminated.
I would love to tune it with a higher octane, but I don't want to worry about perfect mixers and accidently harm the engine. So we'll see what we can safely squeeze out of another 91 tune but I'll keep doing my fuel mixture and I'll just use torco or boostane in the event I can't get 100