exhaust pop
does anyone know why
28 October 2007, 05:48 PM
#2
Scooby Regular
iTrader: (1)
Join Date: Jun 2007
Location: throwing pieces oot a 20 storey flat
Posts: 1,845
Likes: 0
Received 0 Likes
on
0 Posts
is it running rich or have you got a vta dump valve fitted,my blitz did it when i got it fitted,sounded great.....till something decided it didnt want to play ball inside the engine,nowt to do with the exhaust tho
28 October 2007, 11:49 PM
#4
Scooby Regular
iTrader: (4)
Join Date: May 2005
Location: midlands......
Posts: 1,966
Likes: 0
Received 0 Likes
on
0 Posts
Excessive fuel being burnt off in the exhaust,dv can cause this as the mixture in the engine will be richer than normal when the dv vents air to atmosphere.....
29 October 2007, 10:56 AM
#5
Scooby Regular
Join Date: Feb 2007
Location: Uganda
Posts: 455
Likes: 0
Received 0 Likes
on
0 Posts
A decat will also give you pops every time. I've got a decat and OE recirc DV and the car pops very nicely on gear changes and on overrun.
A straighthrough exhaust will also make the pops much more noticeable.
A straighthrough exhaust will also make the pops much more noticeable.
29 October 2007, 11:06 AM
#6
Scooby Regular
iTrader: (8)
Join Date: Aug 2007
Location: Swansea.In search of more power!!
Posts: 6,498
Likes: 0
Received 0 Likes
on
0 Posts
Mine has been popping since i bought it
Nothing to worry about. Just make sure it doesnt happen when your passing an old person who is a bit nervous
Nothing to worry about. Just make sure it doesnt happen when your passing an old person who is a bit nervous
Trending Topics
29 October 2007, 04:20 PM
#10
Scooby Regular
Join Date: Jun 2007
Location: Scunny
Posts: 182
Likes: 0
Received 0 Likes
on
0 Posts
What went bang on yours?
I'm taking mine on a rolling road in the next couple of weeks to make sure all is well. I've also fitted an ESL chip, so it should be OK.
I'm taking mine on a rolling road in the next couple of weeks to make sure all is well. I've also fitted an ESL chip, so it should be OK.
29 October 2007, 04:24 PM
#11
Scooby Regular
iTrader: (1)
Join Date: Jun 2007
Location: throwing pieces oot a 20 storey flat
Posts: 1,845
Likes: 0
Received 0 Likes
on
0 Posts
piston/conrod.Dont think it was anythin to do with the exhaust/forge or anythin just unlucky i guess but the remap might be a good idea to sort out the overfuelling prevent bore wash
29 October 2007, 04:33 PM
#12
Scooby Regular
Join Date: Jun 2007
Location: Scunny
Posts: 182
Likes: 0
Received 0 Likes
on
0 Posts
Like you say, probably would have happened anyway.
I must admit, I intended keeping the engine standard, but when you get the chance of cheap parts you've got to have them
If the rolling road session finds any problems they'll just have to come off again
I must admit, I intended keeping the engine standard, but when you get the chance of cheap parts you've got to have them
If the rolling road session finds any problems they'll just have to come off again
29 October 2007, 04:52 PM
#13
Scooby Regular
iTrader: (4)
Join Date: May 2005
Location: midlands......
Posts: 1,966
Likes: 0
Received 0 Likes
on
0 Posts
Gonna be pretty hard to eliminate overfueling when there is a vta valve fitted as its always gonna do it,irrespective of the mapping, as the already measured is is being vented,but the fuel to go with that air will always be injected,hence the over fuel.... be pretty extreme to cause bore wash though.
29 October 2007, 07:25 PM
#14
Scooby Regular
Join Date: Apr 2002
Location: Warwickshire, UK
Posts: 1,185
Likes: 0
Received 0 Likes
on
0 Posts
My car used to pop and bang like mad with a full decat and HKS SSQV. Since having the PFC and remap it doesnt do it at all. Looking at the before and after power run graphs you can see how the AFR was all over the shop pre map and nicely oroned out afterwards...
Thread
Thread Starter
Forum
Replies
Last Post
fatboy_coach
General Technical
15
18 June 2016 03:48 PM