PDA

View Full Version : backfire



evox310
08-17-2009, 07:30 PM
ok i installed my test pipe and downpipe and got a retune. im noticing now when i shift between gears i will sometimes hear a backfire. im just wondering if ths is ok.

EvoPwr
08-17-2009, 07:35 PM
ok i installed my test pipe and downpipe and got a retune.Â* im noticing now when i shift between gears i will sometimes hear a backfire.Â* im just wondering if ths is ok.

It's not ok if the cops are behind you, but other than that it's fine

1GGEvo
08-17-2009, 07:36 PM
this is perfectly ok, and quite common.Â* It was also discussed here: http://www.socalevo.net/index.php?option=com_smf&Itemid=37&topic=83300.0 not too long ago.

Mike W
08-17-2009, 08:22 PM
Popping and a little fary with a bah-bump is normal running catless. But to me a "back fire" is a KA-POW with flames to light up traffic behind you with the hood rats pulling out they 38s... that is a bit much and not quite normal.

Mike W

EvoPwr
08-17-2009, 08:49 PM
Popping and a little fary with a bah-bump is normal running catless. But to me a "back fire" is a KA-POW with flames to light up traffic behind you with the hood rats pulling out they 38s... that is a bit much and not quite normal.

Mike W


quoted LOL

ultraflip
08-17-2009, 08:55 PM
sounds illegal and not street legal

captain-stl
08-18-2009, 08:35 PM
damn Mike ..you got it done already.. so how much whp did you gain?

captain-stl
08-18-2009, 08:43 PM
that sounds good.. I am still not sure what am I going to do but before I do anything I need to get my wife a coach purse so she wont give me any crap about the $$$ that I am going to spend on parts

urneighborhood
08-31-2009, 07:54 PM
i backfire A LOT when i was giving gas in first, second and third fire..
and the car doesnt accelerate as smooth anymore.
before taht happened, i installed HKS spark plugs and navi..
but knowing that spark plugs wont be the major reason makin any of these problems,
i wonder what is going on with my X..especially when backfire shouldnt happen when gasing, only when letting go of the gas.
in addition to that, i had my car tuned at HB speed about 3 monthes ago, the result was 325whp.
after that, i left the car in the garage for 2 monthes, but it has been turned on and off without driving. when i drive it again about a week ago, i start to gain a lot of boost to about 30psi..
after that, i installed a HKS wastegate actuator so that it could hold more boost
now i am waiting for my turbosmart MBC and see if anything improves...
however, please let me know if any adjustment should be made in order to get the car going again..
i am not happy at the car at all for now...

urneighborhood
08-31-2009, 07:58 PM
this is my 'mod list"

SSR Type F RS 18x9 +32 (fuk boring setup)
Nitto Invo 245/40
Greddy Ti-C turbo back (single exit)
HKS R-Suction intake
HKS upper and lower intercooler pipe kit
HKS wastegate actuator
HKS spark plugs
HKS Type 0 Turbo Timer
Sard Racing BOV
JIC Magic Coilover
Cusco Sway Bars
Defi boost gauge
HB Speed Tuned

STIH8TER
08-31-2009, 08:01 PM
sounds illegal and not street legal


Im getting 310whp with just tune/reflash and exhaust plus air intake. I think thats reasonable for the street. I aint too loud either just a nice purr rumble on my car.
Heh you'll find out later that you might wanna go back from doing that if cops are on your ass all the time. I just do it simple; exhaust, air intake and tune. U dont need to be that loud in the streets where people will be noticing you commin by. Well if you track it then thats ok. Careful dude.

Mike W
09-02-2009, 10:23 AM
i backfire A LOT when i was giving gas in first, second and third fire..
and the car doesnt accelerate as smooth anymore.
in addition to that, i had my car tuned at HB speed about 3 monthes ago, the result was 325whp.
after that, i left the car in the garage for 2 monthes, but it has been turned on and off without driving. when i drive it again about a week ago, i start to gain a lot of boost to about 30psi..
after that, i installed a HKS wastegate actuator so that it could hold more boost
now i am waiting for my turbosmart MBC and see if anything improves...
however, please let me know if any adjustment should be made in order to get the car going again..
i am not happy at the car at all for now...


You had your car tuned for lower boost, raised the boost and now it runs worse? Higher boost is never a remedy for bad running cars. Get your boost down for now and get back to your tuner for a check up before you blow it up. Putting a MBC on a bad running car is a bad idea. I doubt your car was tuned and set up for 30 psi.

Mike W

GokuSSJ4
09-02-2009, 11:00 AM
30psi.. YIKES!!!!!

urneighborhood
09-02-2009, 02:33 PM
i backfire A LOT when i was giving gas in first, second and third fire..
and the car doesnt accelerate as smooth anymore.
in addition to that, i had my car tuned at HB speed about 3 monthes ago, the result was 325whp.
after that, i left the car in the garage for 2 monthes, but it has been turned on and off without driving. when i drive it again about a week ago, i start to gain a lot of boost to about 30psi..
after that, i installed a HKS wastegate actuator so that it could hold more boost
now i am waiting for my turbosmart MBC and see if anything improves...
however, please let me know if any adjustment should be made in order to get the car going again..
i am not happy at the car at all for now...


You had your car tuned for lower boost, raised the boost and now it runs worse? Higher boost is never a remedy for bad running cars. Get your boost down for now and get back to your tuner for a check up before you blow it up. Putting a MBC on a bad running car is a bad idea. I doubt your car was tuned and set up for 30 psi.


Mike W



thanks for advising, and thats what i have figured out too. it would be a bad idea to put MBC
i would probably bring the car to roadrace for a check up...

HB Speed
09-02-2009, 10:47 PM
i backfire A LOT when i was giving gas in first, second and third fire..
and the car doesnt accelerate as smooth anymore.
before taht happened, i installed HKS spark plugs and navi..
but knowing that spark plugs wont be the major reason makin any of these problems,
i wonder what is going on with my X..especially when backfire shouldnt happen when gasing, only when letting go of the gas.
in addition to that, i had my car tuned at HB speed about 3 monthes ago, the result was 325whp.
after that, i left the car in the garage for 2 monthes, but it has been turned on and off without driving. when i drive it again about a week ago, i start to gain a lot of boost to about 30psi..
after that, i installed a HKS wastegate actuator so that it could hold more boost
now i am waiting for my turbosmart MBC and see if anything improves...
however, please let me know if any adjustment should be made in order to get the car going again..
i am not happy at the car at all for now...
Holy chit dude bring the car by and we can adjust that
no way would 30 psi be ok the MAX i run on pump is 27-28

Blk Mivo IX
09-02-2009, 11:55 PM
backfire is alright. its pretty awesome actually.
i even backfire and im only running an axleback lol

urneighborhood
09-03-2009, 03:14 AM
i backfire A LOT when i was giving gas in first, second and third fire..
and the car doesnt accelerate as smooth anymore.
before taht happened, i installed HKS spark plugs and navi..
but knowing that spark plugs wont be the major reason makin any of these problems,
i wonder what is going on with my X..especially when backfire shouldnt happen when gasing, only when letting go of the gas.
in addition to that, i had my car tuned at HB speed about 3 monthes ago, the result was 325whp.
after that, i left the car in the garage for 2 monthes, but it has been turned on and off without driving. when i drive it again about a week ago, i start to gain a lot of boost to about 30psi..
after that, i installed a HKS wastegate actuator so that it could hold more boost
now i am waiting for my turbosmart MBC and see if anything improves...
however, please let me know if any adjustment should be made in order to get the car going again..
i am not happy at the car at all for now...
Holy chit dude bring the car by and we can adjust that
no way would 30 psi be ok the MAX i run on pump is 27-28


yup, thats what i am about to do and give you a call ronnie haha..
i guess the boost got messed up a bit because i didnt drive for quite a while...
and the boost got up to 30psi itself..
however, i adjusted it by gettin the HKS wastegate..now 1st, 2nd, 4th and 5th gear are stable on 22psi
but 3rd gears pops up to 24psi dunno why..
but i guess i need a retune sometime soon