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MAG86
16-08-2005, 06:47 AM
OK what size its best for increased performance
Ive got dad saying 2" , mate saying 2.5" and exhhaust guy sayinf 2.25"
I really dont know!
What are other 1st Gen Magna drivers useing???

mad lanté
16-08-2005, 06:54 AM
go either 2" or 2.25, 2.5" is overkill
i have 2" and found there was a big difference from stock but depending on where u want to go on mods if your doing say carby mod, cam etc go 2.25 but if your just doing exhaust, intake go 2"

schifter
16-08-2005, 07:32 AM
lol im currently savin for a 4" so if a 2.5" is overkill wot would this be?

Itsubish
16-08-2005, 08:32 AM
Road kill!!! lol lol

TM-Terror
16-08-2005, 01:16 PM
im using a 2 1/4" exhaust, sounds beefy and likes to rev. but i have lost a slight amount of bottom end torque. these engines are designed to produce lots of low and mid range torque so putting on anything over 2.25 is a waste of money. probably 2inch is the best overall for fuel economy/torque.

mad lanté
16-08-2005, 09:24 PM
lol im currently savin for a 4" so if a 2.5" is overkill wot would this be?
do u mean a 4" muffler or 4" inlet cos theres a different

MAG86
17-08-2005, 06:18 AM
im gonna go 2" and a lukey highflow muffler with my Hi Techs...
the only problem is i can only get 2" press bent in tassie, not mandrel bent..
man id love to get mandrel bent its just so much smoother and sonds more seriouse not like a farty press bent

i hope it flows a bit better and getmore economy, i know it will go better than what ive got!

My manifold is cracked, cat probably siezed 15 years ago, a few holes in the exhast pipe, a flexi pipe that looks like a flexi mesh with rocks falling out, and s bends and curves and press bends blo0dy everywhere! no wonder it backfires on LPG.... my compression is probabley NON EXITSTENENT!!
i might even get it running like it did 20 years ago!!

MAG86
17-08-2005, 06:20 AM
nice avatar pic mad lante!

My 1st Gen is the same but only burgundy lower half and the small black trim along the bottom edge...
but those rims are totally awesome!!

schifter
17-08-2005, 06:37 AM
do u mean a 4" muffler or 4" inlet cos theres a different


lol yeah i ment a 4" pipe from tha engine then a 4 or 5" muffler u no the sort the type jap tunas have apparently the system on it now duznt have a cat dew to sum dodgy mechanic so thats y from engine

TM-Terror
17-08-2005, 11:45 AM
lol yeah i ment a 4" pipe from tha engine then a 4 or 5" muffler u no the sort the type jap tunas have apparently the system on it now duznt have a cat dew to sum dodgy mechanic so thats y from engine

well if all you want is noise coming from your car then thats a good expensive way to go.
but you will have no power at all, because the exhaust gas travelling out will be going really slowly. the exhaust gas needs to be travelling at a certain speed to "scavenge" or suck out the exhaust gas behind it. in other words u need the exhaust small enough to keep the exhaust gases moving fast to make the engine breath right, but large enough to keep it flowing easily at higher revs. if you just want noise, then get one of those ricey exhaust tips or somthing.

there is an article on here somewhere.

oh also there is nothing wrong with a press bent exhaust, they are the most common type and they do the job well for most applications. you only really need mandrel bent for cars with turbo's or race application where every half a killowatt counts. for our cars id say press bent gives you better bang for your buck. better off putting the savings into a bonnetscoop/ram air intake or getting your intake manifold ported and polished or somthing.

TM-SE-RED
17-08-2005, 03:53 PM
lol yeah i ment a 4" pipe from tha engine then a 4 or 5" muffler u no the sort the type jap tunas have apparently the system on it now duznt have a cat dew to sum dodgy mechanic so thats y from engine

u seriously better be taking the piss... ill laugh at it like its a joke until u say otherwise

Wagon*
17-08-2005, 05:03 PM
OMG BIG EXHAUST = OMG BIG POWAA~!!!11

lol

-Wagon*

mad lanté
17-08-2005, 07:53 PM
nice avatar pic mad lante!

My 1st Gen is the same but only burgundy lower half and the small black trim along the bottom edge...
but those rims are totally awesome!!
yer theres bigger pics of it in one of these threads around here its an overseas model too!!


yeah i ment a 4" pipe from tha engine then a 4 or 5" muffler u no the sort the type jap tunas have apparently the system on it now duznt have a cat dew to sum dodgy mechanic so thats y from engine
heh yer good luck on getting the car to move :rolls:

schifter
18-08-2005, 07:39 AM
lol noise all the wai fellas gotta love that massivly loud exhaust sound, as for power i dont really mind as of yet just because i dont really race, or that sorta thing, only on l pl8s (gets annoyed at driving assessor for failing because of not putting wipers on... :doh: ) (...twice :angry: ) maybe put a big turbo in l8r or sumthin afta gettin more experience "driving"

stripper13
18-08-2005, 09:41 AM
lol noise all the wai fellas gotta love that massivly loud exhaust sound, as for power i dont really mind as of yet just because i dont really race, or that sorta thing, only on l pl8s (gets annoyed at driving assessor for failing because of not putting wipers on... :doh: ) (...twice :angry: ) maybe put a big turbo in l8r or sumthin afta gettin more experience "driving"

Learn about exhausts before talking again.

Your saving for a 4" Tip / Muffler, not the inlet. A V8 would have a tough time trying to get enough exhaust pressure through a 4" system, let alone yours. Your car literally, would have trouble moving from a stop position.

So yes, you are going for noise, but that occurs via the tip/muffler. So if someone has tricked you into buying a 4" exhaust system, it's your own fault.

mad lanté
18-08-2005, 10:24 AM
hes right you will have major power loss and the car will strugle to even move if you want loud just going a overly sized pipe isnt going to do much
get extractors hiflo cat with say a 2.5 cat back with no res and a gay cannon if u want loud :roll:

Aströn Boy
18-08-2005, 10:34 AM
hes right you will have major power loss and the car will strugle to even move if you want loud just going a overly sized pipe isnt going to do much
get extractors hiflo cat with say a 2.5 cat back with no res and a gay cannon if u want loud :roll:
u can get plenty of noise with 2.25" piping and a whopping huge muffler and no res.
take my car for example :D
tho i did ask for a freakin reso, stupid bloody carline.

mad lanté
18-08-2005, 10:55 AM
u can get plenty of noise with 2.25" piping and a whopping huge muffler and no res.
take my car for example :D
tho i did ask for a freakin reso, stupid bloody carline.
exactly see how a 4" pipe is useless

Aströn Boy
18-08-2005, 11:01 AM
he's just pokin fun. relax :P
mind u i have this terrible drone at 70kph now. think the rubber around the gas tank has worn again.

PeteW
18-08-2005, 03:27 PM
oh the subject of zorsts anyone one know the internal size of the flex pipe on an efi? looking to go full 2.25 from extractors to cat just want to know if its worth going a bigger flex pipe if its 2" i wont bother ill just get the pipe and v6 commie cat fitted

pete

Aströn Boy
18-08-2005, 03:35 PM
yes ud need to replace ure flex pipe.

schifter
19-08-2005, 07:43 AM
yeah ive had probs with the exhaust before stock thou got completely clogged driving flatfoot get the car to a top speed of bout 20-25kph trying to avoid this again. you would think that with with the 4" exhaust it wouldnt loose any power due to tha fact that the engine is still breathing thru its original intake setup, meh, your the experts

notorius
19-08-2005, 04:26 PM
jacked up my car with a 2inch zaust before i modded and changed everything went off the clock when i floored it, with no exhaust it couldnt get past 130, if u go 4" then its just stupid your car will not even have the power wanted foir daily driving, also it will be to loud and defected, if ure after noise go 2.25" and take out the res, and get a high flow cat, and cannon, that will give u the noise u want and keep the power

and brendan, why would u laugh at that, ure exhaust is overkill as all u have is a cam and a carby, u only need 2" for best preformance, expecaily considering how small ure cam is