Cold Air Intakes
07-08-2019, 10:58 AM
#22
Safety Car
I just love the advertising that CAI makers use to sell this snake oil. K&N used to say that you can get up to 15 HP more by switching to their system. Up to means that you can get anywhere from less HP to a maximum of 15 HP. There is a big difference between the intake systems of years ago and today. GM puts a hell of a lot of work into designing an intake that will supply the air needed to get the 650 HP they were shooting for. In fact the same air intake system is used on the ZR1 as the Z06 and the LT5 sucks in 52% more air than the LT4. Now GM performance does sell a "high performance" air intake and it says you can get up to 17 more Hp.....sound familiar??
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B747VET (09-19-2019)
07-08-2019, 11:04 AM
#23
Yea.... most of us dont really put much stock into the advertising claims.
As you indicate advertising is often hype..
However dyno claims and reduced ET's posted by several forum members and independent shops have shown very good results for most of the more reputable CAI's.
As you indicate advertising is often hype..
However dyno claims and reduced ET's posted by several forum members and independent shops have shown very good results for most of the more reputable CAI's.
07-08-2019, 11:09 AM
#24
Safety Car
Yea.... most of us dont really put much stock into the advertising claims.
As you indicate advertising is often hype..
However dyno claims and reduced ET's posted by several forum members and independent shops have shown very good results for most of the more reputable CAI's.
As you indicate advertising is often hype..
However dyno claims and reduced ET's posted by several forum members and independent shops have shown very good results for most of the more reputable CAI's.
07-08-2019, 02:04 PM
#25
Not true according to many post here.
Several were done without a tune and yielded good results. (Of course as you suggest a tune will optimize any set up for the most hp possible)
Within reason if you are getting more air you will make more power.
You can gain some power with more air without a tune because the stock tune has some flexibility built into it, to compensate for more or less air based on altitude and humidity.
This is one advantage of the modern ECM over a Carburetor. It has the ability to compensate for different atmospheric conditions (more or less air) by adding or subtracting fuel. So on any given day if you get the engine more air you will have more power (within reason of course).
Several were done without a tune and yielded good results. (Of course as you suggest a tune will optimize any set up for the most hp possible)
Within reason if you are getting more air you will make more power.
You can gain some power with more air without a tune because the stock tune has some flexibility built into it, to compensate for more or less air based on altitude and humidity.
This is one advantage of the modern ECM over a Carburetor. It has the ability to compensate for different atmospheric conditions (more or less air) by adding or subtracting fuel. So on any given day if you get the engine more air you will have more power (within reason of course).
07-08-2019, 02:54 PM
#26
Safety Car
07-08-2019, 03:02 PM
#27
Safety Car
So you are telling us that with nothing but changing your intake you gained 44.79 HP???? Sorry but I call BS on that...the same Intake on the ZR1 makes 750 HP where is the restriction???
07-08-2019, 03:41 PM
#28
Safety Car
If you go back to 2015 when these came out you'll find ALL THE INDEPENDENT TESTING on these found the same thing. Halltech CAI made 40 to 50 additional SAE RWHP over stock. On my car it also made almost a pound more boost than stock. Ask any of the big shops, same answer.
07-08-2019, 03:48 PM
#29
I will approach your doubts a different way.
1. If I told you the Z06 loses 50hp when its located in Denver versus Miami because the air is thinner... you would believe that wouldn’t you?
2. If I told you for any given location on a cold day at freezing temps the Z06 makes more power than it does on a warm 70* day you would say...no **** we all know that because cold air is thicker?
The above is without a tune. The point is the tune adjust for more or less air.
3. If I told you the LT1 and LT4 share the same intake for most model years and folks are picking up 8-12 hp on normally aspirated Stingray LT1's with a CAI, I suspect you would find that reasonable?
So why do you question a Z06's gaining 40 hp with a CAI, knowing it needs at least 40% more airflow than the restrictive LT1 intake (it shares) can provide.
AND if you provide less restriction (more airflow sooner) the LT4 will also gain some additional boost?
Regardless 6 Speeder's results are one of many with results in that ballpark. Do a search on this forum. Since 2015 we have revisited this discussion at least 100 times and there are scores of dyno charts and ET's backing up similar results.
1. If I told you the Z06 loses 50hp when its located in Denver versus Miami because the air is thinner... you would believe that wouldn’t you?
2. If I told you for any given location on a cold day at freezing temps the Z06 makes more power than it does on a warm 70* day you would say...no **** we all know that because cold air is thicker?
The above is without a tune. The point is the tune adjust for more or less air.
3. If I told you the LT1 and LT4 share the same intake for most model years and folks are picking up 8-12 hp on normally aspirated Stingray LT1's with a CAI, I suspect you would find that reasonable?
So why do you question a Z06's gaining 40 hp with a CAI, knowing it needs at least 40% more airflow than the restrictive LT1 intake (it shares) can provide.
AND if you provide less restriction (more airflow sooner) the LT4 will also gain some additional boost?
Regardless 6 Speeder's results are one of many with results in that ballpark. Do a search on this forum. Since 2015 we have revisited this discussion at least 100 times and there are scores of dyno charts and ET's backing up similar results.
07-08-2019, 04:44 PM
#30
Zr1 can make 800 with a new intake.duh
Last edited by BrunoTheMellow; 07-08-2019 at 04:44 PM.
07-11-2019, 09:27 PM
#33
Pro
07-12-2019, 12:00 AM
#34
I'm running a Halltech CAI, Borla off-road x-pipe and Soler PTB - makes for a nice combo. No codes, stock tune. Car definitely feels stronger post CAI but its just butt-dyno which is less than reliable. PTB was great at getting rid of off idle hesitation. '19 Z, M7
07-12-2019, 07:50 AM
#36
All the rookies in here need to go read up if they think a good CAI intake doesn’t pick up power. CORDES 5” even picked up 25whp more on a heads/cam ported factory blower car over a Halltech. Ask Joe from CPE. The easier you let a positive displacement blower breath, the more power it will pick up. Why do you think companies like Katech and Nick Williams offer multiple TB options? Because the more power you make the bigger the intake and TB need to be. No different than N/A but the power is multiplied. The blower is sucking for air. If it was a turbo car it would be different since the intake is pressurized.
Get a scanner and log your KPA under wot, if it isn’t matching what barometric pressure is “kpa” key on engine off, you have a potential large gain in HP depending on how much you are below BARO. If you are above BARO, you’re free flowing and possibly even pressurizing the intake.
YES STOCK CARS PICK UP FROM A CAI
Get a scanner and log your KPA under wot, if it isn’t matching what barometric pressure is “kpa” key on engine off, you have a potential large gain in HP depending on how much you are below BARO. If you are above BARO, you’re free flowing and possibly even pressurizing the intake.
YES STOCK CARS PICK UP FROM A CAI
Last edited by CamOnlyJabroni; 07-12-2019 at 07:53 AM.
07-12-2019, 08:04 AM
#37
07-12-2019, 08:08 AM
#38
9.5 seems to be the norm. Halltech always claimed an increase in boost which seems to be true time and time again. Which is where most of that large hp gain comes from that most don’t understand.
07-12-2019, 08:14 AM
#39
Halltech claims 10.4 psi with intake only which makes sense as I was right there. Sadly PDR boost reading is completely useless.
Here's the short pull graph. 4th gear boost was still increasing.
Last edited by BrunoTheMellow; 07-12-2019 at 08:16 AM.
