Free flow exhaust advice

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SKRIK NIKS
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Mon Aug 06, 2012 8:52 am

Ek wil n free flow exhaust op my 3.0l kz-te sit,is daar n specifieke een wat iemand kan voorstel,ek is in die roodepoort area,en watse plek daar naby is die beste om die te doen?
enige raad sal wardeer word :thumbup:
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Mon Aug 06, 2012 8:59 am

Jan, daar is seker ander voorstelle ook, ek weet of het al gehoor die plek in Newlands so 1km anderkant die highway op Ontdekkers (Oos rigting) ken!

Hoor ook by Blom, seker hy weet ook van iemand in Kdp area?

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Mon Aug 06, 2012 9:07 am

Net 'n vinnige vraag... is jy seker die KZ-TE het nie die back pressure nodig nie?
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Mon Aug 06, 2012 9:13 am

hello cassie
ek glo nie so nie ,want sac stel voor om n free flow op te sit as jy die chip op het :think:
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Mon Aug 06, 2012 9:15 am

SKRIK NIKS wrote:hello cassie
ek glo nie so nie ,want sac stel voor om n free flow op te sit as jy die chip op het :think:
Sorry man... het net gedog ek vra. My kennis is ma beperk tot petrol motors :blushing:
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Mon Aug 06, 2012 9:19 am

Jan het genoeg 'back pressure', nou net sy lorrie reg kry :tease: :tease:

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Mon Aug 06, 2012 11:31 am

IMO: if its turbocharged (petrol or diesel) the less back pressure the better as you do not need to scavenge your cylinders as they are being force fed by the 'charger.

A turbo also substantialy reduces the noise

on my Ssang Yong Musso turbo diesel I have a 63mm pipe from the turbo back and have only 1 63mm freeflow muffler at the rear.
it makes a nice throaty sound on accel but you can't even hear it while cruising

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Mon Aug 06, 2012 11:37 am

i have spoken to scorpion exhaust is krugersdorp,they ask R1300 for a stailes steel pipe from front to rear
if there is any one that done this on a dielsel enjine and has expirence any deffrence please let me know!
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Mon Aug 06, 2012 11:49 am

Andrevt en Traveler het dit gedoen :thumbup:

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SKRIK NIKS
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Mon Aug 06, 2012 11:53 am

wag maar om te hoor of iemand my gaan feedback gee :D:
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Mon Aug 06, 2012 12:08 pm

SKRIK NIKS wrote:i have spoken to scorpion exhaust is krugersdorp,they ask R1300 for a stailes steel pipe from front to rear
if there is any one that done this on a dielsel enjine and has expirence any deffrence please let me know!
R1300 klink goedkoop :thumbup:

Kan jy dalk hulle nr vir my stuur / hier pos ?

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Mon Aug 06, 2012 12:09 pm

I paid R850 for mine with freeflow box but it was in mild steel as they had no stock :(
R1300 sounds like a bargain!

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Mon Aug 06, 2012 12:15 pm

krazy_kameleon wrote:I paid R850 for mine with freeflow box but it was in mild steel as they had no stock :(
R1300 sounds like a bargain!
Yip!

Scorpion exhaust:
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Mon Aug 06, 2012 12:58 pm

Thanks, ek gaan myne volgende week laat opsit.

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Mon Aug 06, 2012 4:37 pm

a stainles free flow exhaust will sound TERRIBLE
make it 63 mildsteel and ask Jan to give you a ( 300mm long resonator) RIGHT AT THE BACK!!!
then it will sound like coooool ek se!!!
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louis fourie
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Mon Aug 06, 2012 6:21 pm

Jan

Ek het gehoor 'n free flow sal ook 'n laer EGT tot gevolg hê. Ek het pyp grotes gehoor van 76mm :shock: . Enige kommentaar

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Tue Aug 07, 2012 7:25 am

Met daai grote pyp diens jy sommer die motor van agter af. :lol: :lol:

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Tue Aug 07, 2012 8:25 am

louis fourie wrote:Jan

Ek het gehoor 'n free flow sal ook 'n laer EGT tot gevolg hê. Ek het pyp grotes gehoor van 76mm :shock: . Enige kommentaar
dont forget to put a security gate on the end to stop the skwatters from moving in...

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Tue Aug 07, 2012 9:45 am

Anyone know what the 'correct' best size pipe must be for a diesel?

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Tue Aug 07, 2012 9:49 am

is daar nie n Noise Boys of n Powerflow daar bo in julle gewestes nie?

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Tue Aug 07, 2012 9:51 am

Powerflow Exhausts
Main Reef Rd, Fordsburg, Johannesburg


Tel: (011) 833-0771
Fax: (011) 833-0772

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Tue Aug 07, 2012 10:08 am

IMO: any turbo car, the bigger the better.
it comes down to tolerence of noise
a friend of mine has a turbo diesel cruiser with a 76mm pipe and 1 freeflow box and it is quite.

as said here earlier the bigger the pipe the lower the EGT and that means you can increase the fueling saftely, increasing your power.
I beleive this is one of those cases where bigger definitely IS better

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Tue Aug 07, 2012 10:15 am

kontak henk by SAC vanderbijlpark, gebruik my naam ,die nuutste mod op my D4D is puik 0169339972,
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Tue Aug 07, 2012 12:11 pm

andrevt wrote:kontak henk by SAC vanderbijlpark, gebruik my naam ,die nuutste mod op my D4D is puik 0169339972,
Tx Andre :thumbup:

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Tue Aug 07, 2012 12:22 pm

Thanks for all the info as i need to change mine soon so will be going for the freeflow now.... :thumbup: :thumbup: :thumbup:
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Tue Aug 07, 2012 12:37 pm

Maak seker al die buigstukke is lekker gelyk en verkieslik stadig. Nie 90Deg draaie nie.

Moet nie te veel soek van oversize pype nie, anders gaan jy nie genoeg druk in die pype kry om die turbo te spin nie.
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Tue Aug 07, 2012 1:42 pm

Traveler wrote:Maak seker al die buigstukke is lekker gelyk en verkieslik stadig. Nie 90Deg draaie nie.

Moet nie te veel soek van oversize pype nie, anders gaan jy nie genoeg druk in die pype kry om die turbo te spin nie.
Heinrich, ek verstaan nie jou opmerking nie. Hoe hoor die druk, hoe minder die lug vloei of verstaan ek dit verkeerd?

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Tue Aug 07, 2012 3:05 pm

MOFASA wrote:Thanks for all the info as i need to change mine soon so will be going for the freeflow now.... :thumbup: :thumbup: :thumbup:
76mm is perfect for the 3CT - I was going to fit that to mine with the top mount intercooler from the 2.8 mitzi

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Tue Aug 07, 2012 3:07 pm

Traveler wrote:Maak seker al die buigstukke is lekker gelyk en verkieslik stadig. Nie 90Deg draaie nie.

Moet nie te veel soek van oversize pype nie, anders gaan jy nie genoeg druk in die pype kry om die turbo te spin nie.
I must humbly disagree, you do not need to scavenge on a boosted engine.
You only need enough pipe after the turbo to convert the radial flow of gas to axial, that can usually be acheived rapidly through a reduction in diameter or an abrupt change of direction (eg 90deg bend) as soon as possible after the exhaust housing

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Tue Aug 07, 2012 4:27 pm

krazy_kameleon wrote:
Traveler wrote:Maak seker al die buigstukke is lekker gelyk en verkieslik stadig. Nie 90Deg draaie nie.

Moet nie te veel soek van oversize pype nie, anders gaan jy nie genoeg druk in die pype kry om die turbo te spin nie.
I must humbly disagree, you do not need to scavenge on a boosted engine.
You only need enough pipe after the turbo to convert the radial flow of gas to axial, that can usually be acheived rapidly through a reduction in diameter or an abrupt change of direction (eg 90deg bend) as soon as possible after the exhaust housing
Stem nie saam met wat nie?? :blink: :blink: Ek gee raad om die turbo vinniger te spin, jy gee raad om die turbo te beperk. Wat is dan die doel van 'n free flow?

Jy skryf: "through a reduction in diameter", waarborg dit sal lei tot meer hitte wat binne die uitlaatstelsel bly, en met die KZ met sy reputasie vir blown gaskets is dit nie 'n goeie ding nie.

'n 90Deg draai lei tot swirling wat 'n buffer plaas op die spoed van die lug wat deur die draai kan gaan, want dit kan nie verder pyp af beweeg totdat dit self ge-swirl het nie. So, om swirling te vermy sit jy 'n gladde draai in, jy gebruik 'n pyp met 'n mindere diameter soos ek reeds genoem het om die relatiewe spoed deur die pyp en verby die turbo te onderhou.

Ander ding, as jy 'n massiewe groot pyp direk agter die turbo plaas het jy 'n vinnige verlies van druk, so jy kan nie 'n konstante werksverrigting op die turbo verwag nie.

Het al baie plaaslike vervaardigde uitlaatpype se ontwerpe goedgekeur op swaardiens diesel engines, almal toegerus met turbos.... :shh: Dan moet jy al hierdie goed in berekening bring, "swirling" is 'n praktiese metode om seker te maak dat jy 'n buffer in die stelsel bou om te verhoud dat die turbo te vinnig kan draai. As jy vinniger spoed op die turbo soek, dan verminder jy die swirling, maar jy moet steeds konstante spoed van lug deur die turbo verseker. Al waar dit bietjie anders werk is waar daar 'n ECU is met 'n variable turbo.
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Tue Aug 07, 2012 4:40 pm

Ek het nooit gedink raad op n free flow kan so tegnies raak nie :think:
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Tue Aug 07, 2012 5:05 pm

I think its just Heinrich and I that disagree with each other on this topic...
suggest you get the advice of a professional who is prepared to guarentee their work :)

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Tue Aug 07, 2012 5:48 pm

am with Rick on this one, and am not going to repost what has already been posted

and from my experience, bigger is better

if its bigger you want go for it. you won't regret it

. :cooldude:
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Wed Aug 08, 2012 6:32 am

:sick:
liewe aarde ouens
dis nie 'n blerrie "racies" trok nie
dis 'n "budget" free flow op 'n kz
jan bou die ding van 63mm (bang for buks)
:surrender: :surrender:
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Wed Aug 08, 2012 6:34 am

blom wrote::sick:
liewe aarde ouens
dis nie 'n blerrie "racies" trok nie
dis 'n "budget" free flow op 'n kz
jan bou die ding van 63mm (bang for buks)
:surrender: :surrender:
Nay, dis interessant die verskillende opinies, nog asb :lol: :lol: :lol:

Ek wil ook weet :mrgreen:

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Wed Aug 08, 2012 8:13 am

Mark, are you trying to start a war between Heinrich and myself??? :wth:

:D:

Blom, I fitted the 63 to my Ssang Yong Moose for exactly that reason. (see earlier post)
R850 bucks - 63mm mild steel from turbo back with a single 63mm freeflow box at the back
Nice sound, nice power

( and the budget shop I was at didn't have the tooling to bend 76mm or I would have done it :twisted: )

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Wed Aug 08, 2012 8:37 am

krazy_kameleon wrote:Mark, are you trying to start a war between Heinrich and myself??? :wth:

:D:

Blom, I fitted the 63 to my Ssang Yong Moose for exactly that reason. (see earlier post)
R850 bucks - 63mm mild steel from turbo back with a single 63mm freeflow box at the back
Nice sound, nice power

( and the budget shop I was at didn't have the tooling to bend 76mm or I would have done it :twisted: )
Definately not :!: Just interesting to hear differnt views on the matter :thumbup:

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Wed Aug 08, 2012 9:07 am

Ha ha, all good Mark, only joking :)

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