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Location:
Gold Coast
Registered:
June 2002
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Popping and farting 1JZ
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Mon, 15 September 2003 12:16
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well i got the exhaust done on my car and its nearly ready to be registered. after taking it for a drive on the weekend ive found it to pop and backfire on idle or cruising under boost... soon as it hits boost it runs like a dream... suggestions?
Thanks
Pete
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Location:
Sydney
Registered:
May 2002
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Re: Popping and farting 1JZ
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Mon, 15 September 2003 12:32
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hmm....is it going bang bang or just crackle crackle ?
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Location:
Gold Coast
Registered:
June 2002
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Re: Popping and farting 1JZ
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Mon, 15 September 2003 12:38
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nah its not pinging.. its just banging i guess.... if i open the hood and listen to it idle i can hear back fireing in the dump pipe but the car still runs fine of boost... it just sounds odd :\
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Location:
Ballarat, Victoria
Registered:
March 2003
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Re: Popping and farting 1JZ
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Mon, 15 September 2003 12:46
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i cant help ya dude, but....from your interior pic...it looks like you have a brown-bronze celica......   i cant say ive ever seen another one of these besides my own...
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I supported Toymods
Location:
Epping, Sydney
Registered:
May 2002
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Re: Popping and farting 1JZ
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Mon, 15 September 2003 12:50
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you sure that's not just the exhaust?
lots of large exhausts get that "crackling" in them when they're too big.
it varies between lots of little pops and a few big ones, but apparently it's harmless
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Location:
Sydney
Registered:
May 2002
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Re: Popping and farting 1JZ
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Mon, 15 September 2003 12:54
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yeah gregs right
but the typical sound is crackle crackle
u say u opened the bonnet and u could hear backfiring in your downpipe.....u sure it wasnt coming out of your throttle body ?
ta
Mani
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Location:
Gold Coast
Registered:
June 2002
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Re: Popping and farting 1JZ
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Mon, 15 September 2003 12:55
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most of those pics are very old... i got some new ones if ya wanna see them
draven: i only got a 3" mandrel zorst.... it really pops loud... ive never heard ne thing like it... but like i said... it drives nice... i just dont wanna keep "test" driving it incase its hurting it :\
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I supported Toymods
Location:
Epping, Sydney
Registered:
May 2002
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Re: Popping and farting 1JZ
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Mon, 15 September 2003 12:59
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well, I never had the problem with my exhaust, but I know a loty of mates with 3" exhausts that had a similar system, sometimes very loud
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Location:
Gold Coast
Registered:
June 2002
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Re: Popping and farting 1JZ
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Mon, 15 September 2003 13:00
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throttle body... no way its on the other side of the motor... its defenitly coming from the dump pipe.
its got a malpassi rising rate regulater on it.. and the spark plugs have only run about 5ks max
would running the motor very rich stuff the spark plugs?
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I supported Toymods
Location:
Epping, Sydney
Registered:
May 2002
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Re: Popping and farting 1JZ
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Mon, 15 September 2003 13:00
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yep
they'll get coated in carbon deposits
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Location:
Gold Coast
Registered:
June 2002
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Re: Popping and farting 1JZ
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Mon, 15 September 2003 13:02
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can i clean them? or just get new ones again?
thanks for all the replies. 
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I supported Toymods
Location:
Epping, Sydney
Registered:
May 2002
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Re: Popping and farting 1JZ
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Mon, 15 September 2003 13:03
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if they're just dirty, you can clean them (petrol and a razor work well - and re-gap them while you're at it)
if that doesn't work, it's time for some new ones
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Location:
Gold Coast
Registered:
June 2002
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Re: Popping and farting 1JZ
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Mon, 15 September 2003 13:05
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thanks
may i ask what happen to ur 1jz ma61?
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I supported Toymods
Location:
Epping, Sydney
Registered:
May 2002
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Location:
Ballarat, Victoria
Registered:
March 2003
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Re: Popping and farting 1JZ
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Mon, 15 September 2003 13:08
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yeah post up some new piccies if you can be bothered
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I supported Toymods
Location:
Epping, Sydney
Registered:
May 2002
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Re: Popping and farting 1JZ
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Mon, 15 September 2003 13:09
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my mate has a whole bunch on his digi-cam, taken under better light. I'll convince him to send them to me
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Location:
Ballarat, Victoria
Registered:
March 2003
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Re: Popping and farting 1JZ
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Mon, 15 September 2003 13:12
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okay cool narnies, ones of yours (pre-accident) and skidmans would be great
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Location:
Gold Coast
Registered:
June 2002
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Re: Popping and farting 1JZ
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Mon, 15 September 2003 13:19
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im on it... the latest pics ive got are when i had the turbos of before i replaced them with a bent chassis and dinged panels with a busted indicator... it must be a celica/supra thing with smashes 
take note that the bent chassis, busted indicator, and dinged panels are all fixed now bent the chassis back myself 
2 x dyna bolts in the ground, 1 chained down car and a 15t truck jack... boo yah
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I supported Toymods
Location:
Epping, Sydney
Registered:
May 2002
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Re: Popping and farting 1JZ
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Mon, 15 September 2003 13:20
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delicate
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Location:
Gold Coast
Registered:
June 2002
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Location:
Gold Coast
Registered:
June 2002
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Re: Popping and farting 1JZ
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Mon, 15 September 2003 13:29
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ra60 bars looks like crap on a ra65 i need the rubber side skirt bits for the bar to hide to bov....btw i didnt want the bov mounted there and it will be changed 
draven... that really sucks about ur supra man... hope u find a good lookin shell.
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Location:
Ballarat, Victoria
Registered:
March 2003
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Re: Popping and farting 1JZ
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Mon, 15 September 2003 15:43
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thats some cool stuff there
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Location:
sunny coast, qld
Registered:
October 2002
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Re: Popping and farting 1JZ
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Mon, 15 September 2003 22:46
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what sort of spark plugs to people recommend for 1jz's?
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Location:
Gold Coast
Registered:
June 2002
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Re: Popping and farting 1JZ
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Mon, 15 September 2003 23:35
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when i went to buy my plugs... i did a search on these forums and a few ppl recommended something like a NGK b6krep i think it was... just do a quick search and im sure u will find the same thread
Pete
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I supported Toymods
Location:
Epping, Sydney
Registered:
May 2002
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Re: Popping and farting 1JZ
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Tue, 16 September 2003 00:35
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BKR6E gapped to 0.8mm. do not get the grooved ones, they're crap
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Location:
Gold Coast
Registered:
June 2002
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Re: Popping and farting 1JZ
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Tue, 16 September 2003 03:12
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what are the differences i can look for between the grooved ones and the normal ones?
Pete
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I supported Toymods
Location:
Epping, Sydney
Registered:
May 2002
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Re: Popping and farting 1JZ
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Tue, 16 September 2003 06:51
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just tell the place you get them from you want non-grooved
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Location:
Sydney
Registered:
May 2002
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Re: Popping and farting 1JZ
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Tue, 16 September 2003 08:52
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by grooved do u mean the "V" groove ?
ive heard they are better
i have no idea y though
y do u say they suk greg ?
yes a rich mixture stuffs plugs
and excess unburnt fuel could be getting in your exhaust and igniting causing tyhe popping ?
or maybe u have an exhaust leak around the dump pipe ?
these are all just guesses....id have to hear it
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Location:
Wollongong
Registered:
March 2003
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Re: Popping and farting 1JZ
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Tue, 16 September 2003 11:27
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i use NGK b6kre with a 0.8mm gap in my 1JZ (thanks simon)
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