Subaru Impreza Forum

SilverStreak · 26 Jul 2008, 08:13 AM

Nearly forgot to ask about this, but since putting a new back box on, no baffles witha 4" opening, the car backfires sometimes after i change gear and hit the accelerator. Any reason for this?

Scotty.

2002pete · 26 Jul 2008, 08:53 AM

With no baffles & a 4" opening. I think it just released backpressure.

(muffled with the stock setup)

SilverStreak · 26 Jul 2008, 09:00 AM

Cheers Pete. Glad thats all it is.

Scotty.

tom73 · 26 Jul 2008, 04:50 PM

mine does the same mate. had a funny experience passing a cyclist a few weeks ago. had to nail it in 1st to get round him on a back road. had to take 2nd just as i was alongside him. as i did that the car let out an almighty backfire which almost blew him off into the hedge

26 Jul 2008, 08:13 AM	#1 (permalink)
SilverStreak Senior Scooby Join Date: Apr 2007 Location: Herts Posts: 645	Car back-firing? Nearly forgot to ask about this, but since putting a new back box on, no baffles witha 4" opening, the car backfires sometimes after i change gear and hit the accelerator. Any reason for this? Scotty. __________________ Scotty.
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26 Jul 2008, 08:53 AM	#2 (permalink)
2002pete Super Moderator Join Date: Sep 2004 Location: UK Posts: 14,377	Re: Car back-firing? With no baffles & a 4" opening. I think it just released backpressure. (muffled with the stock setup) __________________ Pete.
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26 Jul 2008, 09:00 AM	#3 (permalink)
SilverStreak Senior Scooby Join Date: Apr 2007 Location: Herts Posts: 645	Re: Car back-firing? Cheers Pete. Glad thats all it is. Scotty. __________________ Scotty.
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26 Jul 2008, 04:50 PM	#4 (permalink)
tom73 Senior Scooby Join Date: Jan 2006 Location: County Durham Posts: 1,208	Re: Car back-firing? mine does the same mate. had a funny experience passing a cyclist a few weeks ago. had to nail it in 1st to get round him on a back road. had to take 2nd just as i was alongside him. as i did that the car let out an almighty backfire which almost blew him off into the hedge
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