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Author Topic: backfire at idle..  (Read 3135 times)

walter

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backfire at idle..
« on: February 25, 2013, 10:54:17 AM »

! Private video

what do you think? engine is z6 vitara/eagle, ignition map at idle is set at 16.5º, i assume i should increase that due to low compressiont but idk if backfires will be for this. Car is not runs in the street yet.

what do you think?
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92CXyD

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Re: backfire at idle..
« Reply #1 on: February 25, 2013, 12:06:36 PM »

Did ya check your firing order?

By the way your video is private, I do not have a youtube account to look at it.  :noel:

walter

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Re: backfire at idle..
« Reply #2 on: February 25, 2013, 01:47:23 PM »

yeah, everything is ok, check vid again plz. thanks!
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Ntrain2k

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Re: backfire at idle..
« Reply #3 on: February 25, 2013, 06:30:46 PM »

You sure that is backfiring?

Sounds more like it might be a slight misfire to me.
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PhilStubbs

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Re: backfire at idle..
« Reply #4 on: February 25, 2013, 08:24:22 PM »

what are you tuning with? crome? occasionally i get a car that does that. havent found a way to get rid of it yet
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obd1>gtgtall

 fucking box started smoking and i saw a flame start up so i grabbed a bucket of water and splashed it on the breaker box.

bigdaddyvtec

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Re: backfire at idle..
« Reply #5 on: February 26, 2013, 01:42:36 AM »

WHere are the afrs?
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walter

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Re: backfire at idle..
« Reply #6 on: February 26, 2013, 10:35:54 AM »

Hi, engine sounds great, just sometimes it misfire/backfire.. idk if a stock base timing will cause that..

AFR is ok. 13.8-14 solid.


another video.

20130222_204732.mp4

thanks for replies.

P.S i know TB is to tight  :noel:
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HiProfile

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Re: backfire at idle..
« Reply #7 on: February 27, 2013, 06:35:02 AM »

Stock injectors or firehose?

Most large injectors won't work *perfect*. I look at it this way - if the problem is only at idle, DONT LET IT IDLE! Post ripper vids already!! :P
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walter

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Re: backfire at idle..
« Reply #8 on: February 27, 2013, 07:17:26 AM »

using 550cc evo injectors.. i will do it soon!!.
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PhilStubbs

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Re: backfire at idle..
« Reply #9 on: February 27, 2013, 07:49:21 AM »

I have never tuned those, but if they are anything like dsm 450's then that's your problem. I hate trying to idle dsm 450's. I always get stock idle and drivability with my tunes, but dsm injectors make me look bad
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obd1>gtgtall

 fucking box started smoking and i saw a flame start up so i grabbed a bucket of water and splashed it on the breaker box.

Speed Phreak

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Re: backfire at idle..
« Reply #10 on: February 27, 2013, 10:27:35 AM »

I honestly don't hear anything that sounds problematic, I've had stock cars idle worse. The g/f's SRT4 that sits in the yard is bone stock and doesn't sound that smooth at idle, I think you're fine personally.
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PhilStubbs

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Re: backfire at idle..
« Reply #11 on: February 27, 2013, 11:07:47 AM »

^^^
It's a dodge. I have never heard of more idling issues with a brand like I have dodge.
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obd1>gtgtall

 fucking box started smoking and i saw a flame start up so i grabbed a bucket of water and splashed it on the breaker box.

Speed Phreak

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Re: backfire at idle..
« Reply #12 on: February 27, 2013, 11:15:04 AM »

^^^
It's a dodge. I have never heard of more idling issues with a brand like I have dodge.

Lol, I didn't say it was a good example.
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1995 '#039#039Teg - Daily turd burglar
1991 Civic Wagon - N/A lawn dart
1988 CRX HF - Turbo deathtrap

HiProfile

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Re: backfire at idle..
« Reply #13 on: March 01, 2013, 12:13:54 AM »

They use Deka IV injectors, they aren't fantastic but better than old pintle style injectors.

Walter I'm in the process of making a whole bunch more 900cc sets, so I'll be getting you some pics soon.
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they mspainted dildoes in my mom'#039#039s hand, in a picture of her in a hospital bed. -JD
dem gurls need some boobz! -Engloid

Joseph Davis

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Re: backfire at idle..
« Reply #14 on: March 05, 2013, 10:05:06 PM »

Wes got 42mpg off of 500cc SRT-4 injectors in his turbo wagon.  Fuck all of you.

HiProfile

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Re: backfire at idle..
« Reply #15 on: March 06, 2013, 01:47:32 AM »

I got 37mpg on my turbo EF with 780cc Deka 1's. On uberdata. The srt-4 has 8-hole caps, but nearly all others use 2 or 4 holes. Jeep guys rave about upgrading to EV6 4-hole injectors over the Deka 4's, which is a half-decade older design.
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they mspainted dildoes in my mom'#039#039s hand, in a picture of her in a hospital bed. -JD
dem gurls need some boobz! -Engloid
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