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Vonsliek
Posted on Wednesday, June 22, 2005 - 09:52 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)
after accelerating hard, my xb12r makes little popping sounds from exhaust on engine breaking (?!) .. is this right?!

i really like the sound .. i put 91/92 octane in it.

also, on decelleration i notice a whistling sound that i think is from intake .. is this correct & another thing i find cool! : )
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Njbuell
Posted on Wednesday, June 22, 2005 - 09:57 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)
Are you running a free flowing exhaust? They tend to pop a little more although the stock can does too a little. If is excessive it may be on the lean side.
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Cataract2
Posted on Wednesday, June 22, 2005 - 10:18 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)
Mine (XB9SX w/race kit) was doing that a bit more until today when I got the TPS and AFV reset. Rarely did it when I was pegging the throttle wide open and off on the way home.
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Kdan
Posted on Wednesday, June 22, 2005 - 11:33 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)
I know, ain't it cool!?

Aren't you supposed to put 93 octane in?
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Ingemar
Posted on Thursday, June 23, 2005 - 04:22 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)
What njbuell said.

You called it backfire in your subject which isn't what this is btw.
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Cataract2
Posted on Thursday, June 23, 2005 - 07:16 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)
Aren't you supposed to put 93 octane in?

91+ Basically, if it anything in the 90's.
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Vonsliek
Posted on Thursday, June 23, 2005 - 11:36 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)
ok .. what is it? i called it backfire cause i don't know the tech term for it.
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Buelltroll
Posted on Thursday, June 23, 2005 - 02:35 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)
The "tech" term for it is a lean condition,My D&D does it even just changing from first to second gear.
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Stealthxb
Posted on Thursday, June 23, 2005 - 04:07 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)
Completely normal.
Can be reduced by adding a TFI.
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Ingemar
Posted on Thursday, June 23, 2005 - 04:47 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)
ok .. what is it? i called it backfire cause i don't know the tech term for it.

I'm sorry if I sounded condemning.

The tech term would be exhaust popping

Backfire is litterally what it says it is ... it fires back into the airfilter.

Unless I am misinformed exhaust popping can be both a lean and a rich condition.
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Vonsliek
Posted on Thursday, June 23, 2005 - 06:51 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)
ingemar .. its cool .. i am over it! ; )

new question .. what is TFI?! : )
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Ivershay
Posted on Thursday, June 23, 2005 - 11:13 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)
check for intake/exhaust leaks
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Buelltroll
Posted on Thursday, June 23, 2005 - 11:17 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)
A TFI is a less techy Power commander,Lets you adjust the air/fuel ratio,The TFI uses screws to adjust it n the Power Commander uses a laptop.
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