new! need a bit of help
#22
nah dude i dont i wish i did lol. but THANKS EVERYONE and Rob X-7 car started last night!!!
i got a little vid.
http://vimeo.com/2916219
it wont idle on its own. im thinking its because all emissions are removed and i did the tb mod. tonight will be spent dialing it in.
i got a little vid.
http://vimeo.com/2916219
it wont idle on its own. im thinking its because all emissions are removed and i did the tb mod. tonight will be spent dialing it in.
#30
Well I am sure this is going to upset a few people here, but really your not going to accomplish a whole lot performance wise. Sure opening up the intake and exhaust will help but, too far and the car will loose drivability and power on the bottom end as well as the top end. You have a limited ability to tune an N/A those injectors and the stock ECU are limited at best. And that's old tech compaired to todays systems.
Turbo cars have back pressure just because there is a turbo in the exhaust path and reducing intake or exhaust resistance allows the turbo to spool faster, but there is back pressure. Anyway this is why the turbo cars run the larger pipes and less of a muffler.
N/A motors require back pressure too! Only wide open throtle will an open tuned system help power. Now to produce torqe and that's what starts the car in motion not horse power ya need some of that back pressure. First off look at the stock exhaust manifold it's a chamber not a header or even close. I think it is also used to retain heat as well as cut sound. People wrap headers and pipes now because it retains the heat help scavage the spent gases. Keeps the turbo hot on turbo cars. Anyway it not a DIY project.Even for a professional in shop equipped with a hydraulic pipe bender, welder etc. Get a header wrap it,keep the pipe size modest 2 maybe 2 1/4" and use a resonator in place of that cat and a couple low restriction type mufflers. Hey and too much noise will only attract the guys in BLUE. I am sure some will disagree but there ya go.
Turbo cars have back pressure just because there is a turbo in the exhaust path and reducing intake or exhaust resistance allows the turbo to spool faster, but there is back pressure. Anyway this is why the turbo cars run the larger pipes and less of a muffler.
N/A motors require back pressure too! Only wide open throtle will an open tuned system help power. Now to produce torqe and that's what starts the car in motion not horse power ya need some of that back pressure. First off look at the stock exhaust manifold it's a chamber not a header or even close. I think it is also used to retain heat as well as cut sound. People wrap headers and pipes now because it retains the heat help scavage the spent gases. Keeps the turbo hot on turbo cars. Anyway it not a DIY project.Even for a professional in shop equipped with a hydraulic pipe bender, welder etc. Get a header wrap it,keep the pipe size modest 2 maybe 2 1/4" and use a resonator in place of that cat and a couple low restriction type mufflers. Hey and too much noise will only attract the guys in BLUE. I am sure some will disagree but there ya go.