ruchi wrote:generally speaking, wherever there is a restriction pressure will increase, however with the UAS piping the hissing issue occurs when people back off on the accelerator (big pressure decrease) not when they are accelerating (big pressure increase). So I don't believe there is any restriction issues with the UAS pipe, in fact it could well be the reverse, perhaps it flows out so well that when the pressure does decrease (foot off the accelerator) there may be a void or low pressure that creates suction.
Who knows, I'm just speculating.
yeah it breathes pretty well... i'm going to do some vacuum testing on everything as soon as i can afford to take a day off and spend it at unique... if i have time i'll be doing this as well...
just of note the combination of the engine pipes and CAI stage two kit puts a woosh getting close to a BOV out the engine when you change gears...
ruchi wrote:The fact that the UAS pipe works best higher up in the rev-range where more exhaust gasses are being created proves that it is not restrictive.
Again, I am unbiased here as I own neither RPW or UAS stuff, just stating the facts.
actually that's only half of it... and restrictive is not the best word
basically you have two pipes going into one pipe... at different RPM the exhaust gass has different speeds...where two pipes connect you create turbulance...to aid with scavanging exhaust gasses you need the pressure wave from one pipe to be just passing the join to create a vacuum in the other pipe and help extract the exhaust gasses... you also do not want the gas from both pipes coliding with each other as this creates backwards pressure... its really fun trying to design something with variables like this
akuma3 wrote:i was thinking of doing this to my FTO
but i would like some more info from you guys who actually fitted to your car opinion first before i do so
i know that extractor on a civic is bloody loud, how about on FTO? and how much gain on torque or hp would you say it actually gain?
Overall not much louder but a lot more low down torque (as soon as i have these figures will let you know) On average 15 bhp was gained whih i think is alright for the money.
[url=http://www.mitsubishi-fto.org/dawn-spec/index.html]Here it is![/url]
akuma3 wrote:i was thinking of doing this to my FTO
but i would like some more info from you guys who actually fitted to your car opinion first before i do so
i know that extractor on a civic is bloody loud, how about on FTO? and how much gain on torque or hp would you say it actually gain?
I've got the RPW extrator & also a FPR. I did a review a while back already.
DISCLAIMER: The above text is the personal opinion of the author and does not represent the indisputable truth. The author is not responsible for any deaths, injuries or mental illness caused by the above statments.
akuma3 wrote:and now for a newbie question, would it be a defect?
I got pull over couple of times for a random check, pop the bonnet, & cops didn't say sh*t, cause they can't tell if the extractor is original or not, plus FPR is standard in every car, you just putting an adjustable one in thats all. Its all legal.
DISCLAIMER: The above text is the personal opinion of the author and does not represent the indisputable truth. The author is not responsible for any deaths, injuries or mental illness caused by the above statments.
mrx wrote:Don't know if anyone has brought this up, but there seems to be enough interest for a group buy. Anyone ever asked them about this?
If you talking about RPW extractor group buy, Dave (Mitsuman) from RPW had tried before in this forum, but there wasn't enough interest to carry through.
DISCLAIMER: The above text is the personal opinion of the author and does not represent the indisputable truth. The author is not responsible for any deaths, injuries or mental illness caused by the above statments.
