CAI vs BMS filter
Thread Starter
Le Mans Master
Joined: Jul 2010
Posts: 5,407
Likes: 265
From: montreal quebec
CAI vs BMS filter
I would like to know if the Max flow CFM difference would justify getting a full Cai system instead of a BMS filter! I know it has been discuted before, but ive seen a lot of difference in level of modding. In this case, i'm talking about Intake, Ported TB and X pipe,notplanning on going crazy....yet!!
And more importantly, NO TUNE!!!!! Not looking FCK up the warranty just yet, So gains WITH a tune, wont be revelant here. Lastly, Im hope a CAI would at least let us hear the blower whining a Lil more!!!
And more importantly, NO TUNE!!!!! Not looking FCK up the warranty just yet, So gains WITH a tune, wont be revelant here. Lastly, Im hope a CAI would at least let us hear the blower whining a Lil more!!!
Racer
Joined: Dec 2005
Posts: 451
Likes: 413
I would like to know if the Max flow CFM difference would justify getting a full Cai system instead of a BMS filter! I know it has been discuted before, but ive seen a lot of difference in level of modding. In this case, i'm talking about Intake, Ported TB and X pipe,notplanning on going crazy....yet!! And more importantly, NO TUNE!!!!! Not looking FCK up the warranty just yet, So gains WITH a tune, wont be revelant here. Lastly, Im hope a CAI would at least let us hear the blower whining a Lil more!!!
And more importantly, NO TUNE!!!!! Not looking FCK up the warranty just yet, So gains WITH a tune, wont be revelant here. Lastly, Im hope a CAI would at least let us hear the blower whining a Lil more!!!
Le Mans Master
Joined: Nov 2004
Posts: 5,886
Likes: 371
From: Cape Coral FL
I have had 3 C7 Z06s all 3 had aftermarket Cold air intakes, Halltech and AFR, My opinion they both worked great, I just got my 4th Z06 yesterday and today I ordered the BMS filter, I hope it works as well as some of the reviews I have read? Anyone else have any input on the BMS VS CAI? I did not tune with my aftermarket CAI no issues at all. You could hear a slight improvement of blower whine.
Last edited by DRLC5; Aug 30, 2017 at 09:38 AM.
Former Vendor
Joined: Jan 2006
Posts: 797
Likes: 224
From: terry@burgertuning.com Simi Valley, CA
You are asking the wrong question on "Max CFM Flow Difference"... Generally the larger the intake/filter the higher the total CFM and the lower the restriction at very high CFMs... But, the CFM your motor requires depends effectively on its power level. It doesn't matter if you have less restriction at 1400cfm if your motor only requires 900cfm.
Our drop in filter and a full air intake are very close on power at least until the ~630whp levels we've tested so far (2.3" upper pulley, 30% E85). I'd love to see someone with 700whp do some back to back testing to evaluate.
Our drop in filter and a full air intake are very close on power at least until the ~630whp levels we've tested so far (2.3" upper pulley, 30% E85). I'd love to see someone with 700whp do some back to back testing to evaluate.
Last edited by Terry@BMS; Aug 30, 2017 at 10:42 AM.
Thread Starter
Le Mans Master
Joined: Jul 2010
Posts: 5,407
Likes: 265
From: montreal quebec
Thanks Tery for the input! Btw , I love the JB4 on the B car!! Now like i said i still new room for upgrading afterward. Intake, X-pipe and ported TB are for now. Later, ill throw a upper pulley and meth and a tune obviously, this is where i think i might regret the filter!
Team Owner
Joined: Mar 2005
Posts: 20,933
Likes: 905
From: salem OR
I have the first Gen Halltech. The amount of power the Z06 it picks up with the Halltech is amazing I love my Halltech on my 2015 Z06.
My car pulled 600 rwhp stock with just the Halltech intake.
My tuner installs them but he didn't install mine nor did I buy it there said they pull at least 40 rwhp and more on everyone he sees.
The Halltech CAI is the single best mod for the dollar you can do bar none.
That car now has headers PTB tune etc.
But one Z06 with mods is enough so
for my 2017 Z06 I'm staying stock except for a different filter.
Which is very good mod as well. In my mind any Z06 should have at least a High flow filter.
This paper filter GM uses on the C7 as well is really bad that is why just a filter adds power back pretty big power. My 4 cly Colorado has a bigger filter than the Z06 has.
Not doing any other mods no point I'm just going to chill with the A8.
Leave it stock less the filter swap for dinner dates.
If I had plans for any mods per say I would do the CAI. But I staying stock on the A8 so just the filter.
Both have there place.
My car pulled 600 rwhp stock with just the Halltech intake.
My tuner installs them but he didn't install mine nor did I buy it there said they pull at least 40 rwhp and more on everyone he sees.
The Halltech CAI is the single best mod for the dollar you can do bar none.
That car now has headers PTB tune etc.
But one Z06 with mods is enough so
for my 2017 Z06 I'm staying stock except for a different filter.
Which is very good mod as well. In my mind any Z06 should have at least a High flow filter.
This paper filter GM uses on the C7 as well is really bad that is why just a filter adds power back pretty big power. My 4 cly Colorado has a bigger filter than the Z06 has.
Not doing any other mods no point I'm just going to chill with the A8.
Leave it stock less the filter swap for dinner dates.
If I had plans for any mods per say I would do the CAI. But I staying stock on the A8 so just the filter.
Both have there place.
Last edited by 3 Z06ZR1; Aug 30, 2017 at 09:29 PM.
Le Mans Master
Joined: Oct 2005
Posts: 7,088
Likes: 1,829
From: Metro Detroit Michigan
If untuned, how much does the power decrease after the computer "learns" the different airflow?
(BMS found some interesting things on this, that part of the power increase is due the engine running less rich, because the air flow pattern around the MAF is altered.)
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Every 2027 Corvette Engine Explained
Joe Kucinski
Designer Imagines A Corvette That Looks More Like a Corvette Than the Corvette
Verdad Gallardo
10 Ugly Corvettes That We Still Kinda Love
Joe Kucinski
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Team Owner
Joined: Mar 2005
Posts: 20,933
Likes: 905
From: salem OR
How much of that is the intake, and how much is the tune?
If untuned, how much does the power decrease after the computer "learns" the different airflow?
(BMS found some interesting things on this, that part of the power increase is due the engine running less rich, because the air flow pattern around the MAF is altered.)
If untuned, how much does the power decrease after the computer "learns" the different airflow?
(BMS found some interesting things on this, that part of the power increase is due the engine running less rich, because the air flow pattern around the MAF is altered.)
Tech Contributor
Joined: Oct 1999
Posts: 41,063
Likes: 9,825
From: Charlotte, NC (formerly Endicott, NY)
I have the first Gen Halltech. The amount of power the Z06 it picks up with the Halltech is amazing I love my Halltech on my 2015 Z06.
My car pulled 600 rwhp stock with just the Halltech intake.
My tuner installs them but he didn't install mine nor did I buy it there said they pull at least 40 rwhp and more on everyone he sees.
The Halltech CAI is the single best mod for the dollar you can do bar none.
That car now has headers PTB tune etc.
But one Z06 with mods is enough so
for my 2017 Z06 I'm staying stock except for a different filter.
Which is very good mod as well. In my mind any Z06 should have at least a High flow filter.
This paper filter GM uses on the C7 as well is really bad that is why just a filter adds power back pretty big power. My 4 cly Colorado has a bigger filter than the Z06 has.
Not doing any other mods no point I'm just going to chill with the A8.
Leave it stock less the filter swap for dinner dates.
If I had plans for any mods per say I would do the CAI. But I staying stock on the A8 so just the filter.
Both have there place.
My car pulled 600 rwhp stock with just the Halltech intake.
My tuner installs them but he didn't install mine nor did I buy it there said they pull at least 40 rwhp and more on everyone he sees.
The Halltech CAI is the single best mod for the dollar you can do bar none.
That car now has headers PTB tune etc.
But one Z06 with mods is enough so
for my 2017 Z06 I'm staying stock except for a different filter.
Which is very good mod as well. In my mind any Z06 should have at least a High flow filter.
This paper filter GM uses on the C7 as well is really bad that is why just a filter adds power back pretty big power. My 4 cly Colorado has a bigger filter than the Z06 has.
Not doing any other mods no point I'm just going to chill with the A8.
Leave it stock less the filter swap for dinner dates.
If I had plans for any mods per say I would do the CAI. But I staying stock on the A8 so just the filter.
Both have there place.
You are asking the wrong question on "Max CFM Flow Difference"... Generally the larger the intake/filter the higher the total CFM and the lower the restriction at very high CFMs... But, the CFM your motor requires depends effectively on its power level. It doesn't matter if you have less restriction at 1400cfm if your motor only requires 900cfm.
Our drop in filter and a full air intake are very close on power at least until the ~630whp levels we've tested so far (2.3" upper pulley, 30% E85). I'd love to see someone with 700whp do some back to back testing to evaluate.
Our drop in filter and a full air intake are very close on power at least until the ~630whp levels we've tested so far (2.3" upper pulley, 30% E85). I'd love to see someone with 700whp do some back to back testing to evaluate.
At what rpm does having a higher flow intake actually make a difference?
Bill
Racer
Joined: Oct 2006
Posts: 481
Likes: 26
From: Edmond Oklahoma
I went with the BMS, and plan on adding a nomex sock or something to the equivalent and possibly add a tric from halltech. The question I have is should I remove the screen that is on the filter box? Or has anybody seen before and after results from this.
Former Vendor
Joined: Jan 2006
Posts: 797
Likes: 224
From: terry@burgertuning.com Simi Valley, CA
Team Owner
Joined: Mar 2005
Posts: 20,933
Likes: 905
From: salem OR
That may all be true but at 3000 rpm is the Halltech providing any benefit over the factory filter? As Terry says having a super high air flow capacity doesn't help if the engine doesn't need it. How many places are you going to run the car at 6500 rpm to actually make use of that extra 40 to 60 HP of peak HP. Almost all street driving is done with engine rpms in the 1K to 3K range I don't know what the WOT air demand is at those rpms but I suspect it is well within the capabilities of the stock filter.
At what rpm does having a higher flow intake actually make a difference?
Bill
At what rpm does having a higher flow intake actually make a difference?
Bill
I will bet their will be a difference from right off idle not just in the upper RPM's!
Until then you are speculating!
Race Director
Joined: Jul 2007
Posts: 10,961
Likes: 2,643
From: Texas Hill Country
Leeds.io
Joined: Sep 2003
Posts: 4,604
Likes: 409
From: White Mountains
St. Jude Donor '14-'15-'16
NCM Sinkhole Donor
Le Mans Master
Joined: Nov 2004
Posts: 5,886
Likes: 371
From: Cape Coral FL
I installed the BMS in my new 18 Z tonight, started raining so yet to give it a try. I have had the other intakes both with good power increases but not so good fitment. Looking forward to testing it out tomorrow.