Z/28 Air Intake Kit - Page 7 - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

CreeperRS · 03-09-2015, 12:07 AM

Yes, still going to dyno. Waiting for approval of day off from work,should know by tomorrow. Already reseved a date with JBA, 3/20/15 2:00 pm. It's just down the street from me, so I'll give them a second chance. What's the deal about the hood being closed? I thought it did not matter?

Camarotobeornottobe · 03-09-2015, 09:56 AM

I've been waiting on some dyno results, too. I like the look of the Z28 intake, but probably not enough to pay $400 if it offers no performance gains.

Hood should be closed so it keeps the intake from sucking in cool air from the top -- and will give you a more "real life" measurement because it must suck air from the bottom inlet just like when you are driving and just like the stock intake.

CreeperRS · 03-09-2015, 01:02 PM

Ok, so everyone who Dynoed their car did it with the hood closed? Did Jannety do all his test on CAI with the hood closed? Just asking, I want to know whats everyones opinion?

zr1chris · 03-09-2015, 05:49 PM

Quote:

Originally Posted by Camarotobeornottobe

Hood should be closed so it keeps the intake from sucking in cool air from the top -- and will give you a more "real life" measurement because it must suck air from the bottom inlet just like when you are driving and just like the stock intake.

If you have a fan running in front of the car then yes. If not then the hood should be open to make up the difference for having no air flow.

cdb95z28 · 03-09-2015, 08:21 PM

Since the Z/28 CAI is a different animal compared to everything else (in regards to how it seals up at the hood), I think the hood needs to be closed for a realistic result.

Nick S · 03-09-2015, 08:33 PM

Quote:

Originally Posted by cdb95z28

Since the Z/28 CAI is a different animal compared to everything else (in regards to how it seals up at the hood), I think the hood needs to be closed for a realistic result.

I don't know that it's entirely different. I believe the Roto-Fab also is intended to seal against the hood. Were all of the dyno tests performed on Roto-Fab CAI's with the hoods closed? I'm betting they were not.

ToolFan66 · 03-09-2015, 08:56 PM

Like there is really going to be some magical results with the Z/28 CAI.

The RotoFab, and CAI will be just as good, and you have the same chance at having the dealership deny your warranty with all three..

Stay away from kool aid and buy what you like..

Happy modding...

cdb95z28 · 03-09-2015, 08:58 PM

I stand corrected about the rotofab, but which way is proper? I think it needs to be done as it would be driving, for a real world result.

But, if the testing was done hood open then the Z/28 CAI should be done that way too for sake of consistency and fairness.

CreeperRS · 03-09-2015, 09:01 PM

I agree the hood closed would reflect real world readings on the Dyno. However, like Nick S said, I'm sure the other CAI's were not dynoed with the hoods closed! Everyone always has their hood open. I will attempt to try both one open and one closed.

Mgizzle · 03-09-2015, 09:02 PM

Its not as much what other intakes did as it is that the stock only has a hole in the front. So does the z/28 with hood closed but if you open it you allow the z/28 to suck air from top now too. That will never happen in real world so in my opinion not realistic numbers. Keep it closed if you want apples to apples comparison and understand the real difference.

Mikamaro · 03-09-2015, 09:08 PM

Hood closed.

CreeperRS · 03-09-2015, 11:27 PM

.......I see your point. Hood closed it is!

xTOXICxDEATHx · 03-10-2015, 04:38 AM

As I stated in another thread I had a CAI on my 2ss and decided I liked the look of the z/28 one so I bought it installed and IMO the chevy one performed better plus it changed the exhaust note to a more deep tone btw I'm not trolling on CAI I LOVE THEIR KIT still got it on my V6 but the Z kit to me made to car perform better and sound better

Dropspeed · 03-10-2015, 06:38 AM

The reason cars are dynoed with the hood open is that there are no public dyno facilities that can duplicate the airflow of a car at speed. Sticking 5 foot fans or multiple small fans around the car does not replicate the airflow the car will see in the real world. They also do not have variable speeds. IE when the car is at 20mph on the dyno it receives the same air from the fan as when it is at 100mph on the dyno. With that said, the hood should be open as underhood temps are not realistic with the hood closed.

03-09-2015, 12:07 AM	#85
CreeperRS Drives: 20’ Chevrolet Camaro 2SS 1LE Join Date: Jan 2009 Location: San Diego Posts: 1,579	Yes, still going to dyno. Waiting for approval of day off from work,should know by tomorrow. Already reseved a date with JBA, 3/20/15 2:00 pm. It's just down the street from me, so I'll give them a second chance. What's the deal about the hood being closed? I thought it did not matter? __________________ Last edited by CreeperRS; 03-09-2015 at 12:10 AM. Reason: Fs

03-09-2015, 01:02 PM	#87
CreeperRS Drives: 20’ Chevrolet Camaro 2SS 1LE Join Date: Jan 2009 Location: San Diego Posts: 1,579	Ok, so everyone who Dynoed their car did it with the hood closed? Did Jannety do all his test on CAI with the hood closed? Just asking, I want to know whats everyones opinion? __________________

03-09-2015, 08:21 PM	#89
cdb95z28 Drives: 2022 1SS 1LE A10 BCD WCT+PDR Join Date: Mar 2008 Location: Johnstown, PA Posts: 3,796	Since the Z/28 CAI is a different animal compared to everything else (in regards to how it seals up at the hood), I think the hood needs to be closed for a realistic result. __________________ 2022 1SS 1LE A10 BCD WCT+PDR2014 1SS 1LE NPP RECARO SIM-SOLD1995 Z28 M6 GSC PGM-SOLD1975 NOVA COUPE 300HP 350 TH350 FLASH RED-SOLD "KEEP THE FAITH"-Fbodfather

03-09-2015, 08:56 PM	#91
ToolFan66 Drives: 2011 2SS 6.2L W/RS package Join Date: Jan 2011 Location: Colorado Posts: 3,008	Like there is really going to be some magical results with the Z/28 CAI. The RotoFab, and CAI will be just as good, and you have the same chance at having the dealership deny your warranty with all three.. Stay away from kool aid and buy what you like.. Happy modding... __________________ KooKs LT Headers, Borla S-Type cat back, RotoFab CAI, Bo White PTB, RMCR tune...

03-09-2015, 08:58 PM	#92
cdb95z28 Drives: 2022 1SS 1LE A10 BCD WCT+PDR Join Date: Mar 2008 Location: Johnstown, PA Posts: 3,796	I stand corrected about the rotofab, but which way is proper? I think it needs to be done as it would be driving, for a real world result. But, if the testing was done hood open then the Z/28 CAI should be done that way too for sake of consistency and fairness. __________________ 2022 1SS 1LE A10 BCD WCT+PDR2014 1SS 1LE NPP RECARO SIM-SOLD1995 Z28 M6 GSC PGM-SOLD1975 NOVA COUPE 300HP 350 TH350 FLASH RED-SOLD "KEEP THE FAITH"-Fbodfather

03-09-2015, 09:56 AM	#86
Camarotobeornottobe Drives: 1LE Join Date: Feb 2013 Location: East Coast Man Posts: 550	I've been waiting on some dyno results, too. I like the look of the Z28 intake, but probably not enough to pay $400 if it offers no performance gains. Hood should be closed so it keeps the intake from sucking in cool air from the top -- and will give you a more "real life" measurement because it must suck air from the bottom inlet just like when you are driving and just like the stock intake.

03-09-2015, 09:01 PM	#93
CreeperRS Drives: 20’ Chevrolet Camaro 2SS 1LE Join Date: Jan 2009 Location: San Diego Posts: 1,579	I agree the hood closed would reflect real world readings on the Dyno. However, like Nick S said, I'm sure the other CAI's were not dynoed with the hoods closed! Everyone always has their hood open. I will attempt to try both one open and one closed. __________________

03-09-2015, 09:02 PM	#94
Mgizzle Drives: 2013 Camaro 1LE 1SS Join Date: Aug 2012 Location: Detroit Posts: 1,252	Its not as much what other intakes did as it is that the stock only has a hole in the front. So does the z/28 with hood closed but if you open it you allow the z/28 to suck air from top now too. That will never happen in real world so in my opinion not realistic numbers. Keep it closed if you want apples to apples comparison and understand the real difference. __________________ I work for General Motors and am not an official spokes person for General Motors. My views and opinions are my own and not those of General Motors.

03-09-2015, 09:08 PM	#95
Mikamaro MikeNoMaro Drives: A 2016 Challenger R/T M6 STP Join Date: Sep 2009 Location: America Posts: 2,375 View My Garage	Hood closed. __________________ Track Day Videos: http://www.youtube.com/user/mrgoodman2000/videos Built #83817, Born January 18th, Christened June 11th 2010, Stolen October 3rd 2016.

03-09-2015, 11:27 PM	#96
CreeperRS Drives: 20’ Chevrolet Camaro 2SS 1LE Join Date: Jan 2009 Location: San Diego Posts: 1,579	.......I see your point. Hood closed it is! __________________

03-10-2015, 04:38 AM	#97
xTOXICxDEATHx Drives: 2013 Hot Wheels Ed/2014 camaro SS Join Date: Jul 2013 Location: DuQuoin,IL Posts: 170 View My Garage	As I stated in another thread I had a CAI on my 2ss and decided I liked the look of the z/28 one so I bought it installed and IMO the chevy one performed better plus it changed the exhaust note to a more deep tone btw I'm not trolling on CAI I LOVE THEIR KIT still got it on my V6 but the Z kit to me made to car perform better and sound better Attached Images __________________ Dennis xTOXICx rose

03-10-2015, 06:38 AM	#98
Dropspeed 2013 Camaro SS1LECTSVZ28 Drives: 2013 AGM 1SS/1LE Join Date: Nov 2012 Location: Suburbs of Detroit, MI Posts: 2,440	The reason cars are dynoed with the hood open is that there are no public dyno facilities that can duplicate the airflow of a car at speed. Sticking 5 foot fans or multiple small fans around the car does not replicate the airflow the car will see in the real world. They also do not have variable speeds. IE when the car is at 20mph on the dyno it receives the same air from the fan as when it is at 100mph on the dyno. With that said, the hood should be open as underhood temps are not realistic with the hood closed. __________________ My 1LE Build/Journal : http://www.camaro5.com/forums/showthread.php?t=351990