Engine backfires after Roto-Fab CAI Install - Page 2 - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

jbotta · 06-30-2013, 03:46 PM

Rotofab, No back fire.

hawk02 · 06-30-2013, 04:19 PM

This morning I started out easy -- shifted from first to second somewhere between 15 and 20 mph and no backfire just a nice decel pop. Yesterday it backfired so loud, I thought someone had thrown a firecracker at my car.

SPOOKYGUNNER · 07-01-2013, 06:20 PM

I INSTALLED THE ROTO FAB CAI AND INITIALLY GOT A MAF CODE. IT WENT AWAY AFTER A FEW ENGINE ON OFF CYCLES. RUNS GREAT NOW AND I CAN REALLY HEAR THE SUPERCHARGER WHINE. LOW END PERFORMANCE BY THE SEAT OF PANTS SEEMS TO BE MUCH BETTER AND ALL THRU THE RPM RANGE IT SEEMS TO PULL HARDER.HAVE NOT BEEN TO THE TRACK OR A DYNO TO CONFIRM THE DIFFERENCE BUT I AM A HAPPY CAMPER SO FAR!!! HAVE A LOWER PULLEY YET TO INSTALL.

SamHouseIII · 07-01-2013, 11:23 PM

Roto-Fab here...No Backfire

BAD ZL1 · 07-01-2013, 11:29 PM

Put the stock intake back on it, if it happens, it has nothing to do with the rotofab, then take it to the dealer, sheesh.

SamHouseIII · 07-01-2013, 11:35 PM

Quote:

Originally Posted by BAD ZL1

Put the stock intake back on it, if it happens, it has nothing to do with the rotofab, then take it to th dealer, sheesh.

BAD ZL1 · 07-01-2013, 11:42 PM

Quote:

Originally Posted by hawk02

It happens at high rpms like when shifting between gears. For example, today when I pulled out of my driveway and started down the street, it backfired when I shifted between first and second. The backfire was so loud I thought I ran over something in the road. Tonight I just started the car and gave a little tap on the gas and it backfired. It was loud enough my wife asked if I hit something with car. And see was sitting in the house watching TV.

I wonder what in the heck someone might run over that would sound like a backfire too???

hawk02 · 07-02-2013, 12:19 AM

Quote:

Originally Posted by BAD ZL1

Put the stock intake back on it, if it happens, it has nothing to do with the rotofab, then take it to the dealer, sheesh.

Not exactly a 5 min procedure to go back to the stock intake. I thought I'd ask for some opinions first before going to the effort of returning everything back to stock. Isn't the point of of these forums to share each others knowledge with the Camaro5 community or did I miss something?

BAD ZL1 · 07-02-2013, 01:05 AM

The time spent typing about this topic you could have swapped back to the stock intake and gave it a test drive, or did I miss something? My suggestion of swapping back is my feedback, I thought you were looking for feedback about the problem you are having? I hope you find out what is causing the backfire, I meant no harm. Good luck.

05stram · 07-02-2013, 06:57 AM

Is this arrow pointed towards your intake?

A quick check should reveal if you have it 180 degrees out - could be your problem

BAD ZL1 · 07-02-2013, 07:15 AM

Quote:

Originally Posted by 05stram

Is this arrow pointed towards your intake?

A quick check should reveal if you have it 180 degrees out - could be your problem

I remember this part of the install with the way they have the screw holes placed, you could not plug it in the wrong way. Am I misremembering?

05stram · 07-02-2013, 07:56 AM

you are correct one screw is out a little further I do not know if the tube can be reversed or not however

KD Innovations · 07-02-2013, 08:09 AM

Quote:

Originally Posted by ninsecgt

Anything other than a regular k&n air filter replacement requires a tune to optimize the engine function.

Absolutely correct. By changing the intake you are either going up or down the MAF curve and each car will respond a little differently. The car is going to lean out or run richer (and get worse mileage and pop).

Like they say, you don't HAVE to get a tune but with most intakes you don't HAVE to. By not doing so though, your MAF is not calibrated properly. In fact, you don't know how it is calibrated or what fuel it is demanding at a given mass air.

TripleBlkZL1 · 07-02-2013, 08:21 AM

Quote:

Originally Posted by KD Innovations

Absolutely correct. By changing the intake you are either going up or down the MAF curve and each car will respond a little differently. The car is going to lean out or run richer (and get worse mileage and pop).

Like they say, you don't HAVE to get a tune but with most intakes you don't HAVE to. By not doing so though, your MAF is not calibrated properly. In fact, you don't know how it is calibrated or what fuel it is demanding at a given mass air.

This.

06-30-2013, 04:19 PM	#16
hawk02 Coupe Newbie Drives: '23 CT5-V BW, '21 Corvette HTC Join Date: Jul 2011 Location: Columbus, Ohio Posts: 3,412 View My Garage	This morning I started out easy -- shifted from first to second somewhere between 15 and 20 mph and no backfire just a nice decel pop. Yesterday it backfired so loud, I thought someone had thrown a firecracker at my car. __________________

07-01-2013, 06:20 PM	#17
SPOOKYGUNNER ROCK Drives: 2013 ZL-1 TRIPLE BLACK VERT Join Date: Oct 2012 Location: DENVER COLORADO Posts: 609	I INSTALLED THE ROTO FAB CAI AND INITIALLY GOT A MAF CODE. IT WENT AWAY AFTER A FEW ENGINE ON OFF CYCLES. RUNS GREAT NOW AND I CAN REALLY HEAR THE SUPERCHARGER WHINE. LOW END PERFORMANCE BY THE SEAT OF PANTS SEEMS TO BE MUCH BETTER AND ALL THRU THE RPM RANGE IT SEEMS TO PULL HARDER.HAVE NOT BEEN TO THE TRACK OR A DYNO TO CONFIRM THE DIFFERENCE BUT I AM A HAPPY CAMPER SO FAR!!! HAVE A LOWER PULLEY YET TO INSTALL. __________________ WHEN ONE AMERICAN IS NOT WORTHY TO BE FOUND...THEN WE AS AMERICANS HAVE LOST. POW/MIA YOU ARE NOT FORGOTTEN

07-01-2013, 11:23 PM	#18
SamHouseIII I Carry! Drives: 2013 CRT ZL1 Join Date: Jul 2011 Location: Fletcher, Ok Posts: 2,722	Roto-Fab here...No Backfire __________________ I am a Modaholic!! Please Help!! Do Not feed my addicition....See build... http://www.camaro5.com/forums/showthread.php?t=261540 From Oklahoma, Join us on Facebook https://www.facebook.com/groups/okcamaros/

07-01-2013, 11:29 PM	#19
BAD ZL1 BAD ZL1 Drives: 2013 VIN 48 Victory Red ZL1! Join Date: Jan 2012 Location: California Posts: 707	Put the stock intake back on it, if it happens, it has nothing to do with the rotofab, then take it to the dealer, sheesh. Last edited by BAD ZL1; 07-01-2013 at 11:43 PM.

06-30-2013, 03:46 PM	#15
jbotta Drives: Camaro ZL1 Join Date: Jan 2012 Location: Dyer, IN Posts: 1,130 View My Garage	Rotofab, No back fire.

07-02-2013, 01:05 AM	#23
BAD ZL1 BAD ZL1 Drives: 2013 VIN 48 Victory Red ZL1! Join Date: Jan 2012 Location: California Posts: 707	The time spent typing about this topic you could have swapped back to the stock intake and gave it a test drive, or did I miss something? My suggestion of swapping back is my feedback, I thought you were looking for feedback about the problem you are having? I hope you find out what is causing the backfire, I meant no harm. Good luck.

07-02-2013, 06:57 AM	#24
05stram Drives: 2013 RS - 2013 2SS/RS - 1971 RS Join Date: Sep 2012 Location: West Virginia Posts: 1,027	Is this arrow pointed towards your intake? A quick check should reveal if you have it 180 degrees out - could be your problem

07-02-2013, 07:56 AM	#26
05stram Drives: 2013 RS - 2013 2SS/RS - 1971 RS Join Date: Sep 2012 Location: West Virginia Posts: 1,027	you are correct one screw is out a little further I do not know if the tube can be reversed or not however