DIY Rom tuning for exhaust pops and backfires W/ romraider - Page 10 - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

DustinS · 10-30-2014, 02:17 PM

Quote:

Originally Posted by BuBlake

shoot flames yet?

My friend was able to get mine to shoot a very small flame. I suspect that having a proper un-catted header, and running a gas map will make it a lot easier. I am running e85 with de-catted stock header(and front pipe) right now. e85 almost sounds like popcorn if it isn't just right, and the expansion chamber that the hollow cat makes doesn't make it any better. The Gas maps sound like gun shots though.

BuBlake · 10-30-2014, 03:47 PM

Quote:

Originally Posted by DustinS

My friend was able to get mine to shoot a very small flame. I suspect that having a proper un-catted header, and running a gas map will make it a lot easier. I am running e85 with de-catted stock header(and front pipe) right now. e85 almost sounds like popcorn if it isn't just right, and the expansion chamber that the hollow cat makes doesn't make it any better. The Gas maps sound like gun shots though.

I'm running no cats in the video above. also running a 10:1 AFR in the same load range that timing is -15. I think that for consistent flames, one needs to install a grill ignitor. haha

Regardless, I notice that .15 load happens more often than I would like. This causes the car to lurch a lot in almost any gear after getting off and back on the throttle... Probably not good for the transmission or engine. lol Almost worth it for the awesome sound though.

Tenchi · 10-30-2014, 07:23 PM

I've ran this backfiring/exhaust popping setup almost 3,000 miles and had to switch it for a standard map as the daily popping damaged the packing in my Q300 resulting in a loud ass exhaust.

Sent from my iPhone using Tapatalk

BuBlake · 10-31-2014, 11:45 AM

Quote:

Originally Posted by Tenchi

I've ran this backfiring/exhaust popping setup almost 3,000 miles and had to switch it for a standard map as the daily popping damaged the packing in my Q300 resulting in a loud ass exhaust.

Sent from my iPhone using Tapatalk

I'm also running a Q300... lol I think I liked the car more before I got all pop drunk so I'm going to revert to a normal tune as well.

andrew5826 · 03-16-2015, 07:40 AM

updated the op. just curious if anyone ran this long term? i have a stock exhaust now and the pops sound like crap with it so i just removed it

DustinS · 03-16-2015, 09:33 AM

Quote:

Originally Posted by andrew5826

updated the op. just curious if anyone ran this long term? i have a stock exhaust now and the pops sound like crap with it so i just removed it

I ran it for almost 7-8 month, no issues besides black exhaust tip. I went back and am super glad I did. It drives so much nicer on initial tip in (tip out...).

KslayFRZ · 04-02-2015, 08:51 PM

I'm still running mines and it shoots flames everywhere lol. I've mastered the pop

Tenchi · 04-02-2015, 08:52 PM

Quote:

Originally Posted by KslayFRZ

I'm still running mines and it shoots flames everywhere lol. I've mastered the pop

What's your exhaust setup?

KslayFRZ · 04-02-2015, 08:53 PM

Ap el header
Invidia uncatted everything else
Into a q300

Tenchi · 04-02-2015, 08:54 PM

Quote:

Originally Posted by KslayFRZ

Ap el header
Invidia uncatted everything else
Into a q300

Lol very nice. A night video of that would be sweet

KslayFRZ · 04-02-2015, 08:56 PM

Doing it right now :-D

KslayFRZ · 04-02-2015, 08:58 PM

[ame]http://youtu.be/4R2HYnqrryY[/ame]

andrew5826 · 04-03-2015, 12:43 PM

Quote:

Originally Posted by KslayFRZ

that's pretty nuts. is it just ignition timing?

KslayFRZ · 04-03-2015, 12:45 PM

I think it's must the fuel load if I read correctly,.and those are the smaller ones lol. It's loud af

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10-30-2014, 07:23 PM	#129
Tenchi Senior Member Join Date: Feb 2014 Drives: Silver Ignition 6MT 10 series FR-S Location: Rochester NY Posts: 162 Thanks: 95 Thanked 66 Times in 36 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	I've ran this backfiring/exhaust popping setup almost 3,000 miles and had to switch it for a standard map as the daily popping damaged the packing in my Q300 resulting in a loud ass exhaust. Sent from my iPhone using Tapatalk

03-16-2015, 07:40 AM	#131
andrew5826 Señor Member Join Date: Jun 2013 Drives: BRZ SWP Location: BC Canada Posts: 192 Thanks: 22 Thanked 109 Times in 54 Posts Mentioned: 3 Post(s) Tagged: 0 Thread(s)	updated the op. just curious if anyone ran this long term? i have a stock exhaust now and the pops sound like crap with it so i just removed it

04-02-2015, 08:51 PM	#133
KslayFRZ Senior Member Join Date: Jun 2013 Drives: 2013 Frs asphalt Location: Frederick/hagerstown/Baltimore....MD Posts: 1,404 Thanks: 469 Thanked 510 Times in 315 Posts Mentioned: 25 Post(s) Tagged: 0 Thread(s)	I'm still running mines and it shoots flames everywhere lol. I've mastered the pop

04-02-2015, 08:53 PM	#135
KslayFRZ Senior Member Join Date: Jun 2013 Drives: 2013 Frs asphalt Location: Frederick/hagerstown/Baltimore....MD Posts: 1,404 Thanks: 469 Thanked 510 Times in 315 Posts Mentioned: 25 Post(s) Tagged: 0 Thread(s)	Ap el header Invidia uncatted everything else Into a q300

04-02-2015, 08:56 PM	#137
KslayFRZ Senior Member Join Date: Jun 2013 Drives: 2013 Frs asphalt Location: Frederick/hagerstown/Baltimore....MD Posts: 1,404 Thanks: 469 Thanked 510 Times in 315 Posts Mentioned: 25 Post(s) Tagged: 0 Thread(s)	Doing it right now :-D

04-02-2015, 08:58 PM	#138
KslayFRZ Senior Member Join Date: Jun 2013 Drives: 2013 Frs asphalt Location: Frederick/hagerstown/Baltimore....MD Posts: 1,404 Thanks: 469 Thanked 510 Times in 315 Posts Mentioned: 25 Post(s) Tagged: 0 Thread(s)	[ame]http://youtu.be/4R2HYnqrryY[/ame]

04-03-2015, 12:45 PM	#140
KslayFRZ Senior Member Join Date: Jun 2013 Drives: 2013 Frs asphalt Location: Frederick/hagerstown/Baltimore....MD Posts: 1,404 Thanks: 469 Thanked 510 Times in 315 Posts Mentioned: 25 Post(s) Tagged: 0 Thread(s)	I think it's must the fuel load if I read correctly,.and those are the smaller ones lol. It's loud af

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