Is the AFE a horsepower loser?
02-07-2017, 06:36 PM
#1
Burning Brakes
Thread Starter
Is the AFE a horsepower loser?
I just got done talking with my tuner and he said the AFE intake has not been valuable at creating power and that the stock airbox with upgraded filter is a better at making power.
I haven't seen anything like this on the board, are others going back to stock?
I haven't seen anything like this on the board, are others going back to stock?
Last edited by leadville1; 02-07-2017 at 06:43 PM.
02-07-2017, 09:49 PM
#4
Drifting
Purely my opinion.
Chevy didn't get to the power levels we are currently at with leaving much on the table. There really isn't much low hanging fruit anymore. You're going to spend money for incremental gains.
I really don't think there's much to be gained in the intake track other than the filter used.
Exhaust is really just removing the cats. Otherwise it's pretty solid.
Chevy didn't get to the power levels we are currently at with leaving much on the table. There really isn't much low hanging fruit anymore. You're going to spend money for incremental gains.
I really don't think there's much to be gained in the intake track other than the filter used.
Exhaust is really just removing the cats. Otherwise it's pretty solid.
02-07-2017, 10:03 PM
#5
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from 2014
https://www.corvetteforum.com/forums...e-low-end.html
from 2014
https://www.corvetteforum.com/forums...tune-dyno.html
both your threads?
there are a lot of threads showing gains out there also. I also thought for some reason you had a Z06 where the intakes make a bigger difference.
Just slapping the intake on without logging appropriate data isn't telling us much. These computers are sophisticated enough to pull spark or close throttle when you hit certain limits in the tune and the AFE is known to be a different sized tube the MAF sits in and could easily cause this. I've never logged one untuned, I tune everything.
https://www.corvetteforum.com/forums...e-low-end.html
from 2014
https://www.corvetteforum.com/forums...tune-dyno.html
both your threads?
there are a lot of threads showing gains out there also. I also thought for some reason you had a Z06 where the intakes make a bigger difference.
Just slapping the intake on without logging appropriate data isn't telling us much. These computers are sophisticated enough to pull spark or close throttle when you hit certain limits in the tune and the AFE is known to be a different sized tube the MAF sits in and could easily cause this. I've never logged one untuned, I tune everything.
02-08-2017, 12:32 AM
#6
Le Mans Master
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St. Jude Donor '15
This thread shows an AFE only install on the dyno. ~10 hp gain.
https://www.corvetteforum.com/forums...e-install.html
https://www.corvetteforum.com/forums...e-install.html
02-08-2017, 06:46 AM
#7
Burning Brakes
Thread Starter
from 2014
https://www.corvetteforum.com/forums...e-low-end.html
from 2014
https://www.corvetteforum.com/forums...tune-dyno.html
both your threads?
there are a lot of threads showing gains out there also. I also thought for some reason you had a Z06 where the intakes make a bigger difference.
Just slapping the intake on without logging appropriate data isn't telling us much. These computers are sophisticated enough to pull spark or close throttle when you hit certain limits in the tune and the AFE is known to be a different sized tube the MAF sits in and could easily cause this. I've never logged one untuned, I tune everything.
https://www.corvetteforum.com/forums...e-low-end.html
from 2014
https://www.corvetteforum.com/forums...tune-dyno.html
both your threads?
there are a lot of threads showing gains out there also. I also thought for some reason you had a Z06 where the intakes make a bigger difference.
Just slapping the intake on without logging appropriate data isn't telling us much. These computers are sophisticated enough to pull spark or close throttle when you hit certain limits in the tune and the AFE is known to be a different sized tube the MAF sits in and could easily cause this. I've never logged one untuned, I tune everything.
We shall see what it feels like when I get it back today. One thing for sure don't let GM flash anything on your car if you have an aftermarket tune. They totally screwed up my car.
02-08-2017, 08:24 AM
#8
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just fyi, i always ask them to flash any new updates on mine. i just pull them off and apply my old changes to the new GM tune and reflash it back on there so whatever GM updated can stay. It's a little work but you shouldn't need a whole new tune.
02-08-2017, 08:38 AM
#9
Burning Brakes
Thread Starter
It made no sense they said that most of the parameters that would have been put in were missing when they went to tune the car, cam phasing, injector angle etc. It needed a tune anyway with the new intake manifold and the STFT's were very high which probably meant it needed tweaking. If the original baseline had been there it would have probably been much easier.
02-08-2017, 09:14 AM
#10
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It made no sense they said that most of the parameters that would have been put in were missing when they went to tune the car, cam phasing, injector angle etc. It needed a tune anyway with the new intake manifold and the STFT's were very high which probably meant it needed tweaking. If the original baseline had been there it would have probably been much easier.
thats where id put my money, of course theyd be crazy to admit to that one.....
02-08-2017, 10:12 AM
#12
Burning Brakes
Thread Starter
02-08-2017, 10:24 AM
#13
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its a simple mistake and its been made many times before. when you say tables werent visible this indicates to me being in basic mode. sometimes it happens after updating HPT.
I think many of us have been there before, it is a true WTF moment.
not saying they are wrong or this is for sure what happened but I've done 100 factory updates and continued tuning with no issue so it's the only thing I can think of. sometimes the simple answer is the most rightest.
saying that GM's flash on your car hid tables from HPT would just be the first time I have ever heard of that in 10 years.
I think many of us have been there before, it is a true WTF moment.
not saying they are wrong or this is for sure what happened but I've done 100 factory updates and continued tuning with no issue so it's the only thing I can think of. sometimes the simple answer is the most rightest.
saying that GM's flash on your car hid tables from HPT would just be the first time I have ever heard of that in 10 years.
02-08-2017, 11:09 AM
#14
Burning Brakes
Thread Starter
its a simple mistake and its been made many times before. when you say tables werent visible this indicates to me being in basic mode. sometimes it happens after updating HPT.
I think many of us have been there before, it is a true WTF moment.
not saying they are wrong or this is for sure what happened but I've done 100 factory updates and continued tuning with no issue so it's the only thing I can think of. sometimes the simple answer is the most rightest.
saying that GM's flash on your car hid tables from HPT would just be the first time I have ever heard of that in 10 years.
I think many of us have been there before, it is a true WTF moment.
not saying they are wrong or this is for sure what happened but I've done 100 factory updates and continued tuning with no issue so it's the only thing I can think of. sometimes the simple answer is the most rightest.
saying that GM's flash on your car hid tables from HPT would just be the first time I have ever heard of that in 10 years.
02-09-2017, 09:22 AM
#15
Burning Brakes
Thread Starter
I decided to buy the Halltech and install it, and have it re-tuned and dyno'd again.
This should be a good comparison to see if there truly are gains to be had with this intake.
This should be a good comparison to see if there truly are gains to be had with this intake.
02-09-2017, 02:22 PM
#16
04-15-2017, 10:38 AM
#17
Drifting
04-15-2017, 11:35 AM
#18
Le Mans Master
I decided sometime back in 2016 (so it seems from search, where I initially thought the opposite) that it was the filter, not the housing, that was the restriction. So I opted not to get a CAI and instead just run an upgraded green filter. But I wanted to get a stock baseline before dropping it in, and the weather hasn't permitted track time yet... so one day, I shall find out for sure! But not today.
Remember it's entirely possible that CAIs show benefits because they too replace the restrictive LT1 filter, but they may not be the ONLY or EASIEST way to achieve it, that's all.
Remember it's entirely possible that CAIs show benefits because they too replace the restrictive LT1 filter, but they may not be the ONLY or EASIEST way to achieve it, that's all.
Last edited by davepl; 04-15-2017 at 11:35 AM.
04-15-2017, 02:00 PM
#19
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I decided sometime back in 2016 (so it seems from search, where I initially thought the opposite) that it was the filter, not the housing, that was the restriction. So I opted not to get a CAI and instead just run an upgraded green filter. But I wanted to get a stock baseline before dropping it in, and the weather hasn't permitted track time yet... so one day, I shall find out for sure! But not today.
Remember it's entirely possible that CAIs show benefits because they too replace the restrictive LT1 filter, but they may not be the ONLY or EASIEST way to achieve it, that's all.
Remember it's entirely possible that CAIs show benefits because they too replace the restrictive LT1 filter, but they may not be the ONLY or EASIEST way to achieve it, that's all.
There was a time when engines sucked hot air right off the top middle of the engine (carb, TBI, etc) and an aftermarket CAI truly did make a difference with temps as well as CFM.
04-15-2017, 10:03 PM
#20
AFE Tuned
Higgs, what gains in terms of torque and drive ability did you see tuning an AFE on a C7 Stingray? Had one installed untuned recently on my A8 and the car runs and sounds better.
Last edited by marcouvo; 04-15-2017 at 10:07 PM.