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Location:
Newcastle
Registered:
August 2003
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Location:
brisbane
Registered:
September 2005
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Re: Hottest 4ag headers
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Thu, 10 November 2005 01:46
 
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ooh i like 
the ones in that second link are very nice 
any ideas on the price for work like this ?
above or below the value of the engine they are on 
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I supported Toymods
Location:
melbourne
Registered:
June 2002
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Re: Hottest 4ag headers
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Thu, 10 November 2005 01:59
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look pretty good, i have seen nicer.
cant see the reason for all the swoopy pipes though, they aren't equal bend.
the oxy sensor in one primary would seriously block flow, and an oxygen sensor is totally useless in a racing car anyway. i dont even know if they are very useful in a street car, must compare my fuel economy with someone who has one.
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Location:
Kita-Ku, Sapporo, Japan
Registered:
January 2003
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Re: Hottest 4ag headers
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Thu, 10 November 2005 03:04
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| love ke70 wrote on Thu, 10 November 2005 12:46 |
ooh i like
the ones in that second link are very nice
any ideas on the price for work like this ?
above or below the value of the engine they are on
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you didn't look at the page huh  the price is on there..
144900yen
173000yen
92400yen...
if you ask how much that is in australian dollars.. you should be banned
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Location:
brisbane
Registered:
September 2005
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Re: Hottest 4ag headers
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Thu, 10 November 2005 03:09
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sorry i looked at the pretty pictures and left again 
kinda studyin for an exam 
anywho i didnt ask for the aussie prices, me smart enough to do that bit
1,679.73 AUD
2,005.47 AUD
1,070.67 AUD
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Location:
Kita-Ku, Sapporo, Japan
Registered:
January 2003
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Re: Hottest 4ag headers
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Thu, 10 November 2005 03:15
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| shinybluesteel wrote on Thu, 10 November 2005 12:59 |
look pretty good, i have seen nicer.
cant see the reason for all the swoopy pipes though, they aren't equal bend.
the oxy sensor in one primary would seriously block flow, and an oxygen sensor is totally useless in a racing car anyway. i dont even know if they are very useful in a street car, must compare my fuel economy with someone who has one.
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some of the swoopy pipes look equal length. in fact they all look equal length.
the reason for the swoopiness is to get a longer primary pipe length within the engine bay.... it's easier to get 1 pipe under the car than 4 
O2 sensor... wideband...AFR targetting. narrow band do give better fuel economy if you are cruisig at part throttle for a long time. definitely.
then again, mine never had to correct more than about 5% due to the god tune i did so at most i would get 5% better economy..
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I supported Toymods
Location:
sydney.au
Registered:
August 2002
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Re: Hottest 4ag headers
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Thu, 10 November 2005 03:21
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kms headers are sooooo expensive.. but sooo good
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Location:
Canberra
Registered:
May 2002
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Re: Hottest 4ag headers
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Thu, 10 November 2005 03:53
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| shinybluesteel wrote on Thu, 10 November 2005 12:59 |
an oxygen sensor is totally useless in a racing car
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I was having a look at a set of headers from an A1 GP car last night and guess what? They run an oxygen sensor....
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I supported Toymods
Location:
sydney.au
Registered:
August 2002
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Re: Hottest 4ag headers
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Thu, 10 November 2005 07:57
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ozygen sensors are a good thing! expecially 6 wire wideband ones!
talk about quick and accurate!
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Location:
Kita-Ku, Sapporo, Japan
Registered:
January 2003
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Re: Hottest 4ag headers
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Thu, 10 November 2005 12:53
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oh.. what do the 6 wire ones have that the 5 wire ones don't??
there's a new kid on the block apart from the LSU4 and the NTK uber dollar jobbie?
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I supported Toymods
Location:
sydney.au
Registered:
August 2002
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Location:
Perth
Registered:
January 2005
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Re: Hottest 4ag headers
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Fri, 11 November 2005 03:09
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Hi,
Yes oxygen sensors are good! But they can lie to you if you have valve overlap (race car!), raw fuel can skew the readings badly.
Don't rely soley on the number of wires, though generally you need lots of wire to operate a wideband. Find out information about the sensor, there are several types.
There are two Bosch 'LSU4' sensors, LSU4.2 and LSU4.9. LSU4.9 is 'apparently' optimised for lean burn applications (not cars, but CNG where you can run at lambda 1.6 etc). They both have 6 wires but different plugs and work on petrol engines.
Regards, Nick
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I supported Toymods
Location:
sydney.au
Registered:
August 2002
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Re: Hottest 4ag headers
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Fri, 11 November 2005 05:27
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well there ya go
learn somethin every day
thanks nick
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Location:
Kita-Ku, Sapporo, Japan
Registered:
January 2003
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Re: Hottest 4ag headers
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Fri, 11 November 2005 11:14
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| ae86drift wrote on Fri, 11 November 2005 11:22 |
the Bosch LSU4 is a 6 wire is it not?
also that would make it wideband, as 5 wires and less are not wideband correct?
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heh heh, my bad.. that'lll teach me not to go without sleep for a few days
all you can ever want to know about widebands..
http://www.megasquirt.info/PWC/
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Location:
Melbourne - NthSubs
Registered:
January 2004
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I supported Toymods
Location:
melbourne
Registered:
June 2002
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Re: Hottest 4ag headers
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Fri, 11 November 2005 11:33
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so the exhaust doesnt fall apart, must have run out of welding rods
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Registered:
January 2004
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Re: Hottest 4ag headers
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Fri, 11 November 2005 13:09
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narrowband work on a 0-1.0volt, wideband work on a 0-5.0volt, narrowband basically work around very rich to very lean, whereas wideband can generate a voltage at a particular AF ratio, basically said!trying to tune with a narrowband is not possible, well not with any accuracy!!I'm sure someone will say they can.....I'd hate to see their fuel maps
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Registered:
January 2004
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Re: Hottest 4ag headers
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Fri, 11 November 2005 13:11
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There is a reason my Autronic wideband AF meter cost $2000 which is a lot more than those $100(or so) Jaycar narrowband AF meters!!
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I supported Toymods
Location:
sydney.au
Registered:
August 2002
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Re: Hottest 4ag headers
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Fri, 11 November 2005 13:29
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a LSU4 with a controller box isnt $2000 man!
whys the autronic wideband so exxy?
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Location:
Kita-Ku, Sapporo, Japan
Registered:
January 2003
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Re: Hottest 4ag headers
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Fri, 11 November 2005 14:06
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lack of competition 
there are a of kits and products based vaguely on the DIY-WB designs, but i'm hanging out for B&G's PWC...
the Motec Lambda meter is also pretty good (thanks Mr Shin ) (we were only 5% rich tuning with SOTP dyno and narrow band )
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Registered:
January 2004
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Re: Hottest 4ag headers
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Sat, 12 November 2005 11:02
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ae86drift....haven't been around top equipment lately have you???? the Autronic /dyno dynamics etc etc is around $2000, unlike the cheap wideband analyzers, Autronic has temperature compensation etc etc, if you think those innovate ones do...think again
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Registered:
January 2004
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Re: Hottest 4ag headers
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Sat, 12 November 2005 11:04
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oldcorollas a narrowband might work at the extremes of rich/lean BUT try tuning AF ratios in between.....not possible, if you say it is I know your full of shit!!!  just look at the voltage vs AF curve for a narrowband
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I supported Toymods
Location:
sydney.au
Registered:
August 2002
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Re: Hottest 4ag headers
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Sat, 12 November 2005 11:19
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| 170bhp wrote on Sat, 12 November 2005 22:02 |
ae86drift....haven't been around top equipment lately have you???? the Autronic /dyno dynamics etc etc is around $2000, unlike the cheap wideband analyzers, Autronic has temperature compensation etc etc, if you think those innovate ones do...think again
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haha not really
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Registered:
January 2004
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Re: Hottest 4ag headers
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Sat, 12 November 2005 11:25
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ae86drift, a little advice if you wish to listen, don't try tuning with one of those cheap narrowband af meters and don't listen to those who say you can, they'll get it going no worries about that, but it won't be optimal, infact far from it.
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I supported Toymods
Location:
sydney.au
Registered:
August 2002
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Re: Hottest 4ag headers
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Sat, 12 November 2005 11:43
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i was gunna get the boscu lsu4 6 wire wideband one with a controller box
priced around $600 bucks for it installed with a perma-fitted style box
sound ok?
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Registered:
January 2004
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Re: Hottest 4ag headers
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Sat, 12 November 2005 11:47
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there is nothing wrong with that equipment, the Autronic is OVERKILL for private tuning, but for a company that is tuning all the time the accuracy is nice, but be assured that what you want to buy will be no problem, just don't buy one of those Jaycar narrow band $60 kits, they are nice to have flashing lights in the car and that's about it!!
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