Extractors

[Akil]

I'm looking at getting some extractors for my Suzuki and I was hoping that someone could tell me which is better and the pros and cons of 4 into 1 and 4 to 2 to 1.

:help:

[Lonx]

This paragraph sums it up fairly well.... for the full article visit http://www.zhaust.com/tech/0201/exhaust/


On a 4 cylinder engine there are basically 2 types of headers: 4-2-1 and 4-1. The 4-2-1 setup features 4 individual pipes leading from the engine which go to 2 pipes and finally 1 pipe leading to the catalytic converter. This setup is designed to improve low end torque. The 4-1 design features 4 pipes which go straight into 1 pipe going to the cat. This improves mid to high end power. When buying a header, remember to look for one with short pipes of a large diameter. Long pipes of a short diameter give better fuel economy and a bit easier drivability.

[Akil]

Thanks for that Lonx. :)

[Akil]

When they say low end I guess that is from 0 to 2500-3000 RPM aprox

[oliverfehr]

Dont get extractors for a 4 cylinder it's not worth the money. Twisted got some huricane ones for his exa nad he said it was the bigest waste of money. Save the money and get a turbo. Extractors only really do shit to V6 and V8 cars specially commodores and falcons cause there's more gas trying to escape down the exhaust then a 4 cylinder so if you free this up it helps but with a 4 cylinder just get a better catback.

[Lonx]

I disagree pretty strongly with that. A well designed set of extractors or a 'tuned' exhaust pipe/system on any piston engine will greatly decrease the restriction created by incorrect length/diameter/design factory pipes. I'm not being negative against Hurricane, but different headers give different results & maybe Hurricane don't make a 'great' set for the FWD CA18.

The result he had with the hurricane exhaust mainfold depends what other mods he had done, if the rest of the exhaust was upgraded as well & how well tuned his car was. I've known several people who will swear its one of the most cost effective mods they had done.

[Akil]

I agree with you Lonx I have talked to many people in regards to extractors and with my car they highly recommend getting them.

[ExaGP#98]

I agree to both arguements.. is that possible...? hehehe...
ummm... ur suzuki has an air-filter... thats it... depending on the restrictions of the standard engineering of the engine coincides with power gains.. usually across the bored its around 2% power gain...ummm... if ur after power umm... im not sure... but lonx also said "tuned" exhaust system... thats one thing u gotta keep in mind bout ur car and what twisted has done... u have hardly any mods.. and neither does twisted.. well minor mods... but to gain effeciency and power other mods should b done

[Akil]

I was speaking to to guys at SpeedWorks Auto and they recon that I should be able to get an extra 15 to 20 kw with extractors exaust and cams.

[[OUT-23K]`D_ExA]

hey guys how are use...
im new to the club but ive been checkin the site out for a while, jus casually goin through the gallery...
but now use have the new site so i registered...
i own a 1991 CA18DE Exa and its pretty much stock...
when i bought it, it had cold air induction n thats basically it...
i jus installed a K&N air filter n performance wise didnt make much of a difference but u can hear the grunt when u put ur foot down...
my next mod is an exhaust an i jus want to see what u guys think of what i might install...
im lookin to get 2 or 2/1/4 inch mandrel bent from the cat back, extractors, and maybe a 3inch tip..
also i got told to place a high flow cap on it but i still dont really knoe wat that is so i dont knoe if i will...
any suggestions before i go ahead wif it????
thanks n i love the site keep it goin...

[Akil]

2 1/4" exaust is what I would recoment for a NA car and I think most people here would agree with me.

[oliverfehr]

I say save the money and go DET

[ExaGP#98]

exhaust- $1000
extracters- $400 = 20KW ( for min $2400)
cams- $1000+

or turbo CA18DET = 50KW ( for min $2500)
engine- $1100
ecu- $800
gearbox- $600

hey dont quote me on these but yeah.... if u got that sorta money i kno what mod i would b goin for

[Akil]

Mike youl also have to add in a new exause for the DET. Plus I want to keep the car NA.

[boostinhard]

Hey,

Na setup: $1100

exhaust $400
Extractors $400
Cams $300

Turbo setup: $4900

Exhaust $1000 (Turbo needs bigger exhaust = more $$$)
Decent Motor$2000
Decent Turbo$600
ECU $1300

they are slightly more realistic figures.... I think a decent NA engine is awesome... Bump up the compression, run av gas, gfett some real lumpy cams a beaut set of extractors and listen to her scream! And yes, extractors on a 4 cylinder will make a good difference - but only if the motor is needing to breath that much more. Ie, your motor will only breath as good as its worst link - could be filter, inlet manifold, head, extractors, exhaust muffler. If they are all upgraded (or teh worst links upgraded) you will reap huge benefits....
San

[Akil]

Thanks for the figures Sam, I didn't think that EXAGP#98s numbers added up. But I'm not so sure that I will run av gas hehe wish I could... ummmmmm...... av gas :D

[^DeReK^]

on the topic of extractors...

what extractors are available for the 88-91 exa
i know theres hurricane but is there genie and other brands
and whats the difference if any????

[ExaGP#98]

Yeah boostinhard i 4got tha intercooler, exhaust, and turbo.. hehehe... :p . so yeah.... hehehe.... but i got a serious question 4 u all... y put bigger engines in, turbo, cams, extractors and shit? i guess to make it faster..... but its pointless isnt it... its not as if u get to use it legally without endagering the lifes of innocents.... hrmmm.... buy the car the way it is.... if u do up a car save it the embarassment and do sumthin decent to shit all ova hsv GTS.. .thats when its worth it

[oliverfehr]

I agree with GP exa if i wanted to drag get a SLR5000 Torana for say $5000 with LSD Dif, 3+ carbies, bored etc etc etc and supercharge it for say another $2000 so thats... $7000 and woopdee do now you have a fast car. I came from a redneck town called Albany ( no ma mumma dont live in a trailor) where your put to shame if you think you 4 cylinder is fast cause all there is down there is big bored V8s. I was gonna do that till I saw an exa and realised, I wasn't a petrol head and looks comes before speed for me. But yeah why make a stupid NA engine slightly faster by say 20 kw and spend thousands doing it when for a little more you can get a DET which will piss or a supercharged V8.

[boostinhard]

Hey,
not entirely true. I pride myself on havig about as quick as a car you can get for teh amount of dollars spent. I also take pride in doing the stuff myself, not jsut paying someone else to do it. Thats why I mdify cas, because I enjoy seeing the improvements you can make. And yes, I love shitting all over HSV GTSs, heavy pieces of shit!
Plus a supercharged V8 is going to take a little more than a DET motor... Turbo's are good, but there not miracle machines!!! Dont get me wrong, I love beating cars that have V6'sa nd V8's, your teh underdog! But nothing beats good old fashion cubc inches...
Sam

[oliverfehr]

yeah there is no point spending heaps to modify a na engine unless it's a v8. Go turbo. Plus if you later do decide to go turbo you'll have no use for extractors.

[ExaGP#98]

Hehehe.. boostinhard.. u mean a 1.8L DET rite... hahaha.. if u meant SR20DET.. i would beg to differ.. lol... considering ummm... there is a Silvia over here that is pushing 792hp as per standard engine.. ie. no NOS.... lol.. i think that would kick a supercharged V8

[ExaGP#98]

lol.. btw he spent $80,000 gettin it that powerful... hehehe.. but yeah... a question anyone supercharged an N13 Exa? i was thinkin about doin it until i got quoted $3000 for the entire kit that was gonna raise my Exa to around 150KW but that was minus fittin charges etc.

[oliverfehr]

Dont supercharge a 4cyl cause the super charger runs off a belt so it'll be like your aircon is on always so you'll lose torque as well as gain some. A v8 loses an unoticable amount of torque cause of it's bore size.

Anyway I was at this car and motor show and they dyno tested a V8 XY GT Falcon and it put out, wait fo it.... 984kW at the wheels... No supercharger just V8 with NOS. imagine it with a supercharger... drool drool. Anyone heard of that twin turbo V8ute called the JUDGE and the dude got killed dragging in it. well it put out 1000kW at the wheels, no nos or supercharger. lol. In japan they have GTR skylines doing close to 3500Kw no shit. That is insane.

[0xyg3n]

oliverfehr it wasnot the Ute he crashed. It was the new car he had "Giocattolo" basicly the same gear from the ute.

his website is still up here http://www.twinturbov8.com/

[FLANO]

i got 4to1 extractors with a complet 2.25" exhaust system high flow cat etc etc and yes it DEFINATELY made an instant insane difference so im definately a supporter of em hehehe

[Lonx]

yeah there is no point spending heaps to modify a na engine unless it's a v8. Go turbo.

hehe, i won't even start on this one.... :devilburn

[Akil]

Thatks for that Flano.

[Nugget]

I knew this pic would come in handy, its not an exa but hay you could try and do it.
Guess how many turbos
not one
not two
but three turbos

http://cheeseburger.hotmince.com/email/scripts/attach.pl/uid=193207782&pn=2&noInline=0&folder=Car%

:devilburn

[boostinhard]

Hey,
I dont know about 3500kw GTR's in Japan, maybe more like 600-900kw or somehitng...
Sam

[oliverfehr]

well believe it. If i find the site i'll post a url.

[WHI55L]

3500 kw .. hmmmm dont think so mate.....

The HKS drag GTR which is the quickest skyline in the world only puts out 1011 bhp / 754.4 kw . i would believe 1000kw, but no way 3500kw, thats like top fuel dragster horse power

My part on this issue: Extractors will only increase top end flow....Off the line it will actually decrease acceleration... Or so ive been told.... I have extractors fitted to my car, off the line it is sluggish compared to a standard exa, but when u get over 70-80ks, it picks up ALOT faster....

[[OUT-23K]`D_ExA]

Flano thats exactly wat i want...
wat brand exhaust n extractors were they?
wats the high flow cat doo?
do i really need one...
n wat size tip did u get?
:

[boostinhard]

Hey,
WHI55L - I think thats due to too large extractors - you need a bit of back pressure to get her going...
Sam

[KAMELEON]

i have custom made 4 into 1 extracotors(mandrel)
high flow bmw m3 cat
single resonator and single straight through rear muffler all straight through 2.25 piping twin dtm tips etc
very big difference especially when used with a pod as well
its also very quiet compared to other cars with similar systems
4 2 1 extracotors with give better low range torque if thast wat ure after but my car screams once the secondary intake comes into play
all up i spent 600
trade price yes and a mate made the extractors
the rear muffler is a redback sports muffler

[FLANO]

no worries man :D

[boostinhard]

Hey,
c'mon! I want proof of a 3500kw Skyline! then I'll believe it... yo udo realise that it basically not possible to extract that much power from a motor that size with todays technology?
Sam

[Akil]

Come on guys your getting a little off topic...

[boostinhard]

Hey,
c'mon you cant say you dont want to see the proof of a 3500kw Skyline? Lol, okay, okay, back to the topic....

So what design have you gone for? The 4-2-1 sounds like it will suit your taste a bit more by supplying better low end power (that is right isnt it?) and will still be better up top than the standard system. But if you want max power, go the 4-1 system and rev te living shits out of her! That way's gotta be more fun!
Sam

[Akil]

Well I was looking at the way I drive and when I push her hard out of 1st, I never drop below 4k so I was thinking of the 4 into 1

[boostinhard]

Hey,
yeah - thats the way to go then. you should be able a local exhasut shop to make you a decent set of extractors (4-1) that will do the job better than the "off the shelf" items I recon. But only if its a decent joint - up to you I guess...
Sam

[Akil]

I have to see what my mech. can do for me (Speedworks Auto (http://www.speedworksauto.com.au))

Plus I tend to rev the heck out of the car so 4 into 1 is the way!

*Thinks. Poor little engine*

[boostinhard]

Hey,
yeah, the little engines love it! Especially my motor which has alower compression and a really lumpy cam...
Sam

[Akil]

I can't wait to do my cams, exaust, extractors, compression and a few extra bits!

[FLANO]

ok i think my extractors are hurricanes (theyr not labelled though) im sure all my piping is remus, and i have a lukey turbo muffler, i dont exactly know technically what a hi flow cat does, but i know performance is better with one or sumthin hehehehe damn im technical! MRX42U previously known as EXA 70Y posted a big exhaust article which may have talked about it but theres other ppl here who will give ya the run down!!!!!