Toyspeed.org.nz Message Board

by **ROBODISCO_20v** » Sat May 20, 2006 1:20 pm

By no means do you have to buy big name gear, you can get the same results with no nane gear just as long as you are very careful as to who & how you build it. Pays to copy of a proven design like that of hks or apexi though.

crnkin, dito

by **Mr Revhead** » Sat May 20, 2006 1:22 pm

actaully for exhausts i would stay as far away from those N1 style as i possibly could

often they are too loud and drone, and those bolt in silencers are just stupid, they can cause some real issues with power and fuel usage

by **ROBODISCO_20v** » Sat May 20, 2006 1:23 pm

ROBODISCO_20v wrote:By no means do you have to buy big name gear, you can get the same results with no nane gear just as long as you are very careful as to how & who you get to build it. Pays to copy of a proven design like that of hks or apexi though.

crnkin, dito

by **no_8wire** » Sat May 20, 2006 1:29 pm

ROBODISCO_20v wrote:No wounder toyota always loose at the toy vs. honda drag days because no one here knows how to modify their cars proparly. sh*t box exhausts & standard air boxes with paper filters woo hoo my toyota goes hard bro, oh sh*t that standard vtec just owned me, but why

Because honda, like it or not, make far better NA engines than toyota could ever hope to...thats why they win at drags...fool... :roll:

by **Mr Revhead** » Sat May 20, 2006 1:37 pm

dont go there man..... again....

and your so wrong

by **repowered** » Sun May 21, 2006 4:25 pm

wouldnt say better.......maybe faster

by **crnkin** » Sun May 21, 2006 6:52 pm

There just different. The only reason more people dont like hondas is cos theyre 99% fwd, they put emphasis on the engine rather than the body, and they cram stuff in too tight.

We like toyotas cos theyre cheap, easy to work on, and mostly all well balanced packages.

The one thing i have noticed is how low you sit in a toyota seat compared to any other car out theyre, relative to the window sill - anyone noticed this? I love it

by **ROBODISCO_20v** » Wed May 24, 2006 8:12 pm

Mr Revhead wrote:often they are too loud and drone, and those bolt in silencers are just stupid, they can cause some real issues with power and fuel usage

What proof do you have of this :?:

I have a N1 style system on my levin with the removable silencer & it doesn't make any difference to fuel economy. & as for power issues when its in it gives more back pressure hence you have more power/torque at low revs & resctrics at high revs & vice versa when removed. no issues there.

crnkin wrote:The one thing i have noticed is how low you sit in a toyota seat compared to any other car out theyre, relative to the window sill - anyone noticed this? I love it

Yes very cool, you dont feel like you're sitting in a deck chair

by **Mr Revhead** » Wed May 24, 2006 8:25 pm

proof? have you got ears?

as for power issues when its in it gives more back pressure hence you have more power/torque

back pressure is bad, end of story

by **bluemaumau** » Wed May 24, 2006 9:23 pm

Mr Revhead wrote:proof? have you got ears?

as for power issues when its in it gives more back pressure hence you have more power/torque

back pressure is bad, end of story

what makes back pressure bad?

dont all the rally cars have mental backpressure?

by **crnkin** » Wed May 24, 2006 9:39 pm

rally cars having mental back pressure????????????????????

Maybe your thinking of the turbo restrictors... But back pressure?

by **Mr Revhead** » Wed May 24, 2006 9:53 pm

i can tell you that none of the top 4-5 group n cars in nz barely have a muffler let alone back pressure!!

do not confuse back pressure with exhaust pulse scavanging

by **bluemaumau** » Wed May 24, 2006 11:36 pm

my bad. i thought they all ran like 2" exhausts. :oops:

by **Mr Revhead** » Thu May 25, 2006 10:44 am

nah more like 3-3.5"
and i have seen one with no muffler at all

by **ROBODISCO_20v** » Sun May 28, 2006 3:39 pm

SO if you're saying back pressure is bad then why do you tell people to fit super turbo style mufflers over N1 :?:

Those super turbos have heaps of back pressure/restriction compaired to a N1 so that would make the N1 much better

by **Mr Revhead** » Mon May 29, 2006 10:01 am

not super turbo, super FLOW.

by **crnkin** » Mon May 29, 2006 6:35 pm

what a monkey oo oo ah ah

by **ROBODISCO_20v** » Wed May 31, 2006 8:18 am

Are these what you're going on about http://www.performanceexhaustdirect.com/ :?:

What the old rota boys would call a truck muf & below that a hot dog/coby.

by **Mr Revhead** » Wed May 31, 2006 10:55 am

oh whoops got the name wrong :oops:

i meant flow master :lol:

http://www.flowmastermufflers.com/

red car · by pc » Wed May 31, 2006 11:48 am

yeah... backpressure = urban myth

was useful in 2 stroke tuning, but don't know of many people running 2 stroke corollas on this forum... = none.

Getting the wave lengh, pressurery thingies right so that negative pressure is created at the time that the exhaust valves open may make a difference (which i think revhead called exhaust pulse scavanging). but the chances of getting that right without a rocket scientist working it out for you are nil.

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