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| WagonDad |
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KWIKXR, the primary collectors on those Coby's are the longest I have ever seen on a set of Ford six extractors, need to keep the Cat in the sytem so moving it back is the only option. My Wildcat secondaries measure about 200mm and 300mm so as they make the turn to level out they go straight into the collector, Im thinking along the line of skider and extending them around 200mm, again not based on sience but what seems to work for JMM and the hours of R&D they have done.
_________________ 4.0L EF Fairmont Station Wagon. EL GT Snorkel. K&N Pod in air box. 3" Intake piping.
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| KWIKXR |
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Agree with ya 100% mate, relocating the cat converter back a bit is the only way to go especially with rules and reg's regarding cats over in Aussie.
Lol about the comment regarding the Coby's, they definately are the longest collectors ive seen too, initially i thought that they might not work very well as the internal size inside the collectors would seem to be quite big. Funnily enough they seem to work well and i have no complaints with them at all. Look forward to your progress regarding the modding of the wildcat's WagonDad. Would love to do the same to a set of pacemaker 4480's if i ever get my hands on a set |
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| ToranaGuy |
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Moving the cat back down the exhaust pipe would cause it to take a little longer to warm up, and they don't work so well when they are cold. But once the engine has been running for a couple mins it would be up to temp anyway.
It would be interesting to see some basic emissions tests with the cat in stock position & with it moved back a bit. Cheers ToranaGuy
_________________ I am the ToranaGuy!|74 Lh Torana Turbo|78 Hz PanelVan|86 Mighty Boy Ute|93 EB2 Ghia,GT Mockup,5spd,LPGI,Full Leather|2 x EB Xr8 5spd's|{DESCRIPTION}|{DESCRIPTION}|{DESCRIPTION}| |
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| Bug |
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Anyone got an opinion on the standard JMM headers? I have some (I think) in an EL I bought, but they're press bent so I'm strongly considering throwing my 4480's in.
_________________ EL XR6 5spd |
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| Bug |
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{USERNAME} wrote: its funny how 79% have indicated pacemaker, when only the old not sold anymore 38mm units would even be considered for this application. I was lucky to find a set of 38mm 4480's in good nick second hand, but its getting harder as older units crap themselves and are resigned to the scrapheap. its just misleading when 79% vote pacemaker. its such a brand thing for most of this 79%. This is why you have to watch what you read on here, and listen to guys who know, like ticky. always there with a good straight answer. a new member might open this thread, look at the vote, and there we have another miss-informed individual. I went from old 4480's to new ones a couple years ago (they cracked). It was a noticeable step backwards as I wasn't running the kinda power to really notice any top end improvements compared to the bottom end loss. Having said that I wouldn't say the new ones bottom end is any worse than stock.
_________________ EL XR6 5spd |
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| el fantasy |
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hey guys didin't want to start a new thread.
I also have a EL on gas. Im also interested in low down power torque I currently have a catback 2.5" redback system. Ive just got the rear res nothing else. What extractors would you recommend? thanks. |
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| EL__Fairmont |
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{USERNAME} wrote: Reading an article online and they had a set of JMM Scavengers, they measured the secondary pipes as 55cm and 69cm thats s**t loads long. I am thinking of extending the secondaries of my Wildcat 21x's to improve low down torque, any thoughts. I have thought about he same thing with my 4499 pacemakers extending the secondary pipes to where the cat back exhaust bolts on. If you look at all the 4l crossflow extractors they have very long secondaries, although no need to fit a cat...........
_________________ 97 EL Fairmont 4l OHC .Silver. |
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| Raptor1603 |
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i have a set of the jmm race series headers (only put them on last friday!
 ) and they bolt straight up to a 2.5" exhaust system with out a cat (or modify exhaust to include cat) and they work brilliantly down low!!
_________________ 184 rwkw with more to go! |
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| EL__Fairmont |
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{USERNAME} wrote: i have a set of the jmm race series headers (only put them on last friday! ) and they bolt straight up to a 2.5" exhaust system with out a cat (or modify exhaust to include cat) and they work brilliantly down low!!I have just recently removed my 4499 (tri-y)pacemakers headers, there going to the exhaust shop to get the secondary's extended to where the cat back exhaust is fitted.
_________________ 97 EL Fairmont 4l OHC .Silver. |
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| WagonDad |
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Keep us informed with the changes.
_________________ 4.0L EF Fairmont Station Wagon. EL GT Snorkel. K&N Pod in air box. 3" Intake piping.
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| ELboy |
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Sorry to bring up an old thread
Mickyyy mate i think you need a diesel engine Fitting a set of headers simply will not give you what your looking for! You want power under 2500rpm well you would need a supercharger. No set of headers, exhaust system or aftermarket cam will give you big power increases at revs as low as 2500rpm its just not possible My advice to you is to go drive a whole heap of different cars. I have not driven a car (besides mates supercharged 6.0 hsv maloo) that has as much low down power as ford's 4.0 ie. under 2500rpm. Go drive a 220kw 5.7 gen3 they have nothing at all down real low |
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| Spoondog |
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^agreed go drive other cars and then u will realise how much power the standard ford 6 has down low, and the SOHC has way more then the later DOHC versions too.
_________________ R33 GTS-T - 222.6rwkw |
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| MICKYYYY |
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good to see an old thread keep going and have learned more since 2008 and its all about velocity, and if i were to get a set i would buy them from the below as he will make it in the primary pipe size and length i want.
http://www.dkne.com.au/ford-falcon-6cyl ... p-235.html
_________________ Wanted Either Capri/Cortina/XY/XW/XR/XT with tough V8 stroker engine, auto, 9inch, upgraded brakes etc[/SIZE][/size][/color] |
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| adam88 |
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Just to add, I noticed that the Tiger brand headers you can get on eBay have 38mm pipes.
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| krisisdog |
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{USERNAME} wrote: good to see an old thread keep going and have learned more since 2008 and its all about velocity, and if i were to get a set i would buy them from the below as he will make it in the primary pipe size and length i want. http://www.dkne.com.au/ford-falcon-6cyl ... p-235.html I've mentioned this a few times now; I bought a set from these guys when they first opened a few years back, quality is pretty good. Theyre basically a Pacie 4499 copy. I had no issues with them, and only upgraded as I found a set of 4480's for cheap cheap. |
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