piping question

adri 2nr · Postby **adri 2nr** » March 6th, 2005, 3:34 am

if your piping is too small can it cause enough restriction if you gear down to cut off the engine?

plex · Postby **plex** » March 6th, 2005, 10:50 am

not sure, but i see your car passed down my street and sounding good..

adri 2nr · Postby **adri 2nr** » March 6th, 2005, 10:58 am

yeh i got it back yesterday so i was just seeing how she was running

plex · Postby **plex** » March 6th, 2005, 11:07 am

it sounding real good...even when you pass mine street i hearing it..

adri 2nr · Postby **adri 2nr** » March 6th, 2005, 7:01 pm

lol thanks..i have to run straight pipe though still..i was in ur street earlier this morning as a matter of fact

Postby **AllTrac** » March 6th, 2005, 7:05 pm

mazdaspeed 3 wrote:if your piping is too small can it cause enough restriction if you gear down to cut off the engine?

i dont think thats possible, you might get alot of back pressure if the piping is extremely small, but as long as its not totaly blocked i dont think that could happen.

adri 2nr · Postby **adri 2nr** » March 7th, 2005, 1:39 pm

so the back pressure noise would stop with the bigger pipes right? but wouldn't the car be more noisy? as well would a free flow(bigger size..moving up from 1 3/4 to 2 1/2) show any increase in horsepower ? i also heard gas consumption would increse..i don't so since this is more expelled stuff at this stage? however what do u all think?

Spyrogyra · Postby **Spyrogyra** » March 7th, 2005, 2:05 pm

do you have a free flow intake ?

what size engine is it on ? You will see some small gain in HP but torque would be affected.

adri 2nr · Postby **adri 2nr** » March 7th, 2005, 3:27 pm

2000 cc

torque will be afftected positively or negitavely?

WadadliX · Postby **WadadliX** » March 7th, 2005, 4:46 pm

also depends on if ur engine is NA or forced inducted. bigger gains r noticed on a boosted engine.

length and width on the primary has a bigger difference also.

TurboDrive · Postby **TurboDrive** » March 10th, 2005, 8:33 am

I have a fuel injected 1.5L 16v DOHC engine the only mod is a performance filter. What size piping would you advise to install ?

Jesu · Postby **Jesu** » March 23rd, 2005, 1:21 am

TurboDrive wrote:I have a fuel injected 1.5L 16v DOHC engine the only mod is a performance filter. What size piping would you advise to install ?

i intrested in d answer too

JL · Postby JL » March 23rd, 2005, 10:04 am

I have the same engine type and I use 2 inch piping throughout.

Aaron 2NR · Postby **Aaron 2NR** » March 23rd, 2005, 10:42 am

that problem was sorted out..what happened was the fan was throwin a lot of hot air directly to the air filter an causin it to cut off..
i think the correct size piping for n/a engine (2000) is about 2 1/4 or 2 1/2

Spyrogyra · Postby **Spyrogyra** » March 23rd, 2005, 11:35 am

low end torque would decrease becasue there's less backpressure, High end would improve.

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