Great write up.
Halltech?
Thread Starter
Le Mans Master
Joined: Nov 2004
Posts: 5,886
Likes: 371
From: Cape Coral FL
Halltech?
Ordering tonight for my 16 model. Is there more than one filter? I do not want to tune at this time. So which filter do I need or does it come by default? Also any deals for forum members? Thanks for any input.
Drifting
Joined: Jul 2008
Posts: 1,799
Likes: 446
From: FEMA Region 4
I believe the dry filter comes stock bit the oiled filter comes as an option. The oiled filter makes more HP, but I'd sacrifice a lot tle power for the better filtering of the dry one. The dry filter isn't supposed to require a tune.
Drifting
Joined: Jun 2007
Posts: 1,425
Likes: 238
From: Macomb MI
The Stinger RZ (rotomolded plastic for Z06) comes with the "high flow" oiled filter. This is the NO TUNE version for the RZ intake that flows most and makes the most power. The synthetic (dry) filter is optional and also NO TUNE with a tad better filtering efficiency, but gives up just a bit on ultimate power (~6hp in the RZ).
The whole filter confusion came from the differences between the CKNZ (carbon fiber + Nomex) and the RZ (rotomolded plastic).
Originally the CKNZ was the only one available, and the oiled (high flow) filter was "tune recommended" and the dry (synthetic) was the "no tune" option for the CKNZ only.
When the RZ was introduced and reached its final iteration of internal geometry, the high flow (oiled) filter became the "no tune" option with the same peak gains as the CKNZ, and the synthetic filter was an option for those wanting the last little bit of filtration efficiency at the cost of a small bit of flow and peak gains.
Jim has addressed this many times, but the misunderstanding for many obviously remains. I think his attempts at explaining the differences for the filters for the two different CAI models are not that clear because he pulls in too many dyno stories and evolutionary tales. (sorry Jim!) And the CKNZ (carbon Nomex) is NOT AVAILABLE any more until Jim can find another carbon fiber shop.
Cliff's Notes:
RZ + High Flow (oiled) filter = NO TUNE and MAX untuned gains
RZ + Synthetic Filter (dry) = NO TUNE and MAX filtration (and ~6hp less max gains)
https://www.corvetteforum.com/forums...post1590180274
https://www.corvetteforum.com/forums...post1590179250
https://www.corvetteforum.com/forums...post1590177508
The whole filter confusion came from the differences between the CKNZ (carbon fiber + Nomex) and the RZ (rotomolded plastic).
Originally the CKNZ was the only one available, and the oiled (high flow) filter was "tune recommended" and the dry (synthetic) was the "no tune" option for the CKNZ only.
When the RZ was introduced and reached its final iteration of internal geometry, the high flow (oiled) filter became the "no tune" option with the same peak gains as the CKNZ, and the synthetic filter was an option for those wanting the last little bit of filtration efficiency at the cost of a small bit of flow and peak gains.
Jim has addressed this many times, but the misunderstanding for many obviously remains. I think his attempts at explaining the differences for the filters for the two different CAI models are not that clear because he pulls in too many dyno stories and evolutionary tales. (sorry Jim!) And the CKNZ (carbon Nomex) is NOT AVAILABLE any more until Jim can find another carbon fiber shop.
Cliff's Notes:
RZ + High Flow (oiled) filter = NO TUNE and MAX untuned gains
RZ + Synthetic Filter (dry) = NO TUNE and MAX filtration (and ~6hp less max gains)
https://www.corvetteforum.com/forums...post1590180274
Simple. The dry filter is more efficient in terms of filtration, at the cost of more restriction to flow, and less horsepower. Approximately 6 RWHP less than the high flow.
Tuning was required with our CKNZ intake when equipped with our high flow filter. The MAF read area of the carbon fiber intake was made to under-report airflow at the beginning (in prototype A configuration)
The wall thickness of the plastic intake can be controlled to allow any read area we want, and is our method of dialing in the air fuel ratio. LTFTs are dead nuts on with our plastic unit, and around +6 with the CKNZ. Moot point at this time, since we are not making the CKNZ until we find another carbon shop.
That will happen this fall.
Tuning was required with our CKNZ intake when equipped with our high flow filter. The MAF read area of the carbon fiber intake was made to under-report airflow at the beginning (in prototype A configuration)
The wall thickness of the plastic intake can be controlled to allow any read area we want, and is our method of dialing in the air fuel ratio. LTFTs are dead nuts on with our plastic unit, and around +6 with the CKNZ. Moot point at this time, since we are not making the CKNZ until we find another carbon shop.
That will happen this fall.
All dyno reports so far have been with the high flow filter, both in the case of the CKNZ and Stinger-RZ.
The last dynos done on the dry filter was done on a different cars, but both the Gen 1 and Gen 2 were 44 and 46 RWHP respectively.
The last dynos done on the dry filter was done on a different cars, but both the Gen 1 and Gen 2 were 44 and 46 RWHP respectively.
We have discontinued all carbon fiber products at this time. We will probably have the CKNZ back this fall.
The high flow filter has always been the filter that comes with the Stinger-RZ. All testing, dynos, etc. have been done with that filter. The dry filter is slightly more efficient at the cost of a few horsepower.
We will have a special going today on our website that offers the second filter for $49.00 when purchased along with the Stinger-RZ.
The high flow filter has always been the filter that comes with the Stinger-RZ. All testing, dynos, etc. have been done with that filter. The dry filter is slightly more efficient at the cost of a few horsepower.
We will have a special going today on our website that offers the second filter for $49.00 when purchased along with the Stinger-RZ.
Last edited by xp800; Sep 10, 2015 at 07:51 AM.
Pro
Joined: Feb 2015
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From: Half Moon Bay Caifornia
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Safety Car
Joined: Sep 2014
Posts: 4,301
Likes: 959
From: in the country North Carolina
I bought both with mine. If you want to swap your dry for my oiled I will be glad to help you out. It hasn't been used.
Melting Slicks
Joined: Feb 2002
Posts: 2,479
Likes: 17
From: Miami Fl
My buddy got hall tech dyno showed 4 hp less than stock. I'm very cautious after reading all the posts about over leaning. Who better to say what air fuel level is best other than GM? I have no stake but want the real story.
Safety Car
Joined: Apr 2010
Posts: 4,231
Likes: 451
From: Maryland
WOW!!!I have an A8 running the stock air intake that I added an aftermarket OEM replacement air filter to and all I could manage in August was a 10.68 with a 1.59 60 ft. on the OEM PSS tires. I hope to improve on that 60 ft.. I only had 1 real pass that day/night due to break downs, etc. at the track.
PS: What 1/4 mile ET's are the Halltech cars running? I think I may of seen "one" here. Post up.
EDIT: Times should start to improve now due to better weather.
Last edited by C7/Z06 Man; Sep 27, 2015 at 06:07 PM.
Thread Starter
Le Mans Master
Joined: Nov 2004
Posts: 5,886
Likes: 371
From: Cape Coral FL
Is this for real? There have been over 20 different results/threads from several different shops all with positive results and no issues, I have contacted 3 on my own with positive results just like the data shared on this site, And your buddy said he installed one and came in at 4hp less? Really?
Melting Slicks
Joined: Feb 2002
Posts: 2,479
Likes: 17
From: Miami Fl
Is this for real? There have been over 20 different results/threads from several different shops all with positive results and no issues, I have contacted 3 on my own with positive results just like the data shared on this site, And your buddy said he installed one and came in at 4hp less? Really?
Team Owner
Joined: Mar 2005
Posts: 20,933
Likes: 905
From: salem OR
Yes for real! If u r one of the ones who got a 40-50 hp dyno documented boost u should realize that it's not just better airflow. The MAF is in a different position and the ECU is "fooled" into delivering more power. GM sets a/f level in the 10s at WOT for a reason. If u don't know the reason maybe u should question the device or at least tune it and lose warranty
Racer
Joined: Mar 2005
Posts: 257
Likes: 11
From: Naples FL
Finally someone who dares bring some objectivity to the matter.
Dyno numbers can easily be manipulated. I will be a believer once drag strip racing same day with 2 Z06s (one stock and one with halltech) or roll racing.
DRLC5: Did I offend you in any way that you are ignoring my posts and pms?
Dyno numbers can easily be manipulated. I will be a believer once drag strip racing same day with 2 Z06s (one stock and one with halltech) or roll racing.
DRLC5: Did I offend you in any way that you are ignoring my posts and pms?
Yes for real! If u r one of the ones who got a 40-50 hp dyno documented boost u should realize that it's not just better airflow. The MAF is in a different position and the ECU is "fooled" into delivering more power. GM sets a/f level in the 10s at WOT for a reason. If u don't know the reason maybe u should question the device or at least tune it and lose warranty
Le Mans Master
Joined: May 2010
Posts: 7,756
Likes: 173
From: Ventura CA
Finally someone who dares bring some objectivity to the matter.
Dyno numbers can easily be manipulated. I will be a believer once drag strip racing same day with 2 Z06s (one stock and one with halltech) or roll racing.
DRLC5: Did I offend you in any way that you are ignoring my posts and pms?
Dyno numbers can easily be manipulated. I will be a believer once drag strip racing same day with 2 Z06s (one stock and one with halltech) or roll racing.
DRLC5: Did I offend you in any way that you are ignoring my posts and pms?
I had a Mustang on 3 different dynos....all different numbers, some as far as 25-30hp off on a little 302.
Racer
Joined: Jun 2010
Posts: 252
Likes: 32
From: Puyallup WA
Dyno's can be very helpful if you don't pay so much attention to the top number as you do the difference of before and after numbers. This assumes all other conditions are the same.
I can't believe all the shops are massaging the before and after numbers but the MAF sensor location could make a difference. Only putting it on a dyno and recording the air fuel ratio along with other variables will give you an true picture of what is going on and if your in danger of hurting your engine without a tune.
I can't believe all the shops are massaging the before and after numbers but the MAF sensor location could make a difference. Only putting it on a dyno and recording the air fuel ratio along with other variables will give you an true picture of what is going on and if your in danger of hurting your engine without a tune.