What have you done to your MS3 today?
- Thread starter ZoomVT
- Start date
Atmospheric is around 101kPa in absolute pressure (gauge pressure is silly, I don't like it), so anything less than 101kPa, or whatever your local atmospheric pressure is, is considered a vacuum. Anything above your local atmospheric pressure is considered boost.
oaklandopen
Member
Well....we are also talking about an "enclosed" system....so you cant really count for "your area". my guess is you mean whatever elevation you are at
by that logic, since i think that normal atmospheric pressure at sea level is near 15psi (sorry but **** kilopascals for the moment) then our car would never really reach "boost" since we are also near 15psi
granted, i didnt really google anything before this post, so im going by whatever is in the back of my skull
by that logic, since i think that normal atmospheric pressure at sea level is near 15psi (sorry but **** kilopascals for the moment) then our car would never really reach "boost" since we are also near 15psi
granted, i didnt really google anything before this post, so im going by whatever is in the back of my skull
I do mean your geographic location when I say "your area."
The intake pressure, as measured in absolute terms, is about 30psi. With gauge pressure (i.e. pressure over atmosphere) it reaches about 15psi. With my mods, I see about 215kPa manifold absolute pressure via my DashHawk, or about 30.9psia (absolute), which is about 16.2psig (gauge). I would say my car is "boosted 16.2psi" because the intake sees pressure 16.2psi greater that the atmosphere I'm driving in.
alright alright everyone calm the **** down
oakland, the turbo does not create boost based on rpm, its strictly controlled by your right foot
cruising i will see anywhere from -10 to -15 in Hg at 60 on a level road
remember the throttle plate is not wide open (unless you are going WOT....get it?)
the engine is turning fast with the throttle body nearly closed, creating a large vacuum, add more throttle, the plate opens more and the vacuum decreases
a NA motor will have 0psi/vacuum when going wot since it is wide open, we have a turbo shoving air down the motors throat as well
oakland, the turbo does not create boost based on rpm, its strictly controlled by your right foot
cruising i will see anywhere from -10 to -15 in Hg at 60 on a level road
remember the throttle plate is not wide open (unless you are going WOT....get it?)
the engine is turning fast with the throttle body nearly closed, creating a large vacuum, add more throttle, the plate opens more and the vacuum decreases
a NA motor will have 0psi/vacuum when going wot since it is wide open, we have a turbo shoving air down the motors throat as well
oaklandopen
Member
I realize that turbo boost is based on load (or right foot whichever you prefer) but i couldnt understand how there was still vacuum in any condition other than closed throttle plate or idle....even when the plate is barely open at a steady cruising speed with ultimately low load
the part that really confused me was that there is still vacuum in anything other than idle on a turbo car. ive never had a gauge or anything so i never really tested it out
I must have never truly understood all the vacuum parameters, regardless of NA or charged engines. Muh bad
and i was completely calm, you probably took notice of my "**** kPa"....didnt mean anything by it
the part that really confused me was that there is still vacuum in anything other than idle on a turbo car. ive never had a gauge or anything so i never really tested it out
I must have never truly understood all the vacuum parameters, regardless of NA or charged engines. Muh bad
and i was completely calm, you probably took notice of my "**** kPa"....didnt mean anything by it
Hehe, I can appreciate that sentiment, no worries, I knew it wasn't anything personal.
oaklandopen
Member
Im real short when i drink. that should have been translated to "pardon, may we use the psi measurement in lieu of kPa?"
find something that she spends money on unnecessarily
like 100000000000000 shoes
then argue you are ordering 15 parts for 1 car, you have 100000000000000 ricer mods for 2 feet
if she gives you this face
then you have to walk out of the room immediately so you can declare victory
Can we photoshop a cock in her mouth? She's bangin'.
- :
- 06 LS MS6
07 BM GT (shell has been struck from the roll)
I smile inside when I hear it spool on cruise control, which it will do on modest inclines
oaklandopen
Member
To be installed this weekend in place of the second bad set of xenons
Uploaded with ImageShack.us
im tired of the cheap retrofit HID kits. going back to halogens....might as well get the 'spensive ones
Uploaded with ImageShack.us
im tired of the cheap retrofit HID kits. going back to halogens....might as well get the 'spensive ones
Why are you nervous about letting the engine work a little bit?
oaklandopen
Member
Im surprised no one caught my my post of the wrong bulbs....im an idiot. i shoukd have known better than to listen to a pepboys worker
but, against my better judgement i took his word for it. didnt realize it till i had everything apart. it was so funny cuz when i was there last night i headed right for the booklet of bulb types when he said "you need some help?" i told him i was just looking for the bulb type
he told me he wouod be glad to look it up on his computer. whatever, i was having vision issues from the alcohol i consumed earlier anyway. so i told him "its a 2008 mazda, mazdaspeed3. the one with the turbo."
he asked "is it the hatch or sedan?" at this point i probably should have reenforced the "turbo" statement
he said they were H11 and went to the back and grabbed them for me. and now here we are
i guess had i not been inebriated i would have driven my car there instead of riding in the truck, then the last thing i would have done before even entering the store would have been to look through the owners manual for the exact bulb
but, against my better judgement i took his word for it. didnt realize it till i had everything apart. it was so funny cuz when i was there last night i headed right for the booklet of bulb types when he said "you need some help?" i told him i was just looking for the bulb type
he told me he wouod be glad to look it up on his computer. whatever, i was having vision issues from the alcohol i consumed earlier anyway. so i told him "its a 2008 mazda, mazdaspeed3. the one with the turbo."
he asked "is it the hatch or sedan?" at this point i probably should have reenforced the "turbo" statement
he said they were H11 and went to the back and grabbed them for me. and now here we are
i guess had i not been inebriated i would have driven my car there instead of riding in the truck, then the last thing i would have done before even entering the store would have been to look through the owners manual for the exact bulb
oaklandopen
Member
oh lord i must not troll or post ***** enough lol
ive got a gt. ive been tinkering with HID retrofit kits for the fog lights, and i mean some cheap kits that you get in stores and vendors at car shows. they work great till about the 100th igniting, then they s***
i was hoping to have a nice 3k yellow HID independant foglight setup but it just never turned out that way. i had yellow at first without the indy setup, then they failed. so once i did the indy wiring i got around to ordering some 6k HID, then they strted to fail
so here we are. ive now gone back to halogen bulbs for the fog lights, and they are still independent
Check out these LED Fogs from CorkSport. I have them and they give a nice white light with a hint of blue.
http://www.corksport.com/corksport-led-drl-kit.html
http://www.corksport.com/corksport-led-drl-kit.html
