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This is a question born of curiosity, and a desire for understanding, not discontnent. I love my car, and with the mods i have done, i think i may have hit my goal of 200 whp. The "formula" isnt anything I pulled from the internet, just a manifestaion of what i know about forced induction. Since...

I understand that volume and pressure are not the same, so a bigger turbo at lower pressure pushes a greater volume of air than a small turbo at higher pressure. All i am saying is at one bar, the air pressuure is 2x that of atmospheric, so doessnt that mean twice as much air in terms of volume...

I thought my little math up there was self-explanatory, if an engine is ingesting twice as much air and fuel or 1 bar over atmosphere, then i is the same effect as doubling its displacement.

Okay, 1 bar= 1 atmosphere= 14.5psi Adding 1 bar of boost to an engine effectively doubles its displacement. At 10 psi, I boost 71% of 1 bar. My effective displacement should be about 3.4 liters. I know there's more to horsepower than just displacement, but most 3.4 liter engines make...

I was browsing craigslist, and came accross a guy seeling a used greddy catback for a protege 5 for 100 (new 550-600). So my question is: is it at all practical to make it fit on my mazdaspeed? I know protee 5 pipes are shorter, and I have seen some evidence that the stockers are of narrower...

Installed some Weapon R hardpipes... and yeah I've had them pop off twice now. Once at the intake manifold, and once at the turbo/hot pipe. Still when they are holding I am definitely noticing some improved acceleration and spool up, and they look so much better than stock

Anyway what about the question that stated this thread that no one has answered?

i read elsewhere that if its no taller than 7 in you dont have to cut the crash bar.

Ok first off I really looked to see if there was already a thread for this but couldn't find one. If there is just link it and I will smack the back of my head for you. having said that. I am researching as much as I can into getting a fmic. Because I am consistently short on cash I'm just...

replaced the wategate, and now she runs like a champ. Boosts all the way to 9psi under full throttle which I understand is a safe level. Thanks to everyone for helping.

I don't think that can be done with an after market intake since its got a cone filter

I have an injen CAI for my 3.5 MSP so the filter has been placed low in the driver side fender. A friend and fellow car guy suggested that i make the non functional "mesh looking" piece of plastic functional by either cutting out the spaces between the mesh or by just removing the piece all...

hey Yeah I'm from stl. I am going to school at semo so im in cape giriardeu most of the time but i come up to stl all the time to see my gf. i have a 2003.5 sunlight silver

u prob have the same problem im dealing with which is runaway boost, and no the oem part is a 295.00 rip off... you can get better forged ones for half the price. you found a cheap one like i did which should work in theory, but it looks a little different from oem

first of all thank you to you all for replying... now: The guys at Benning Mazda thought the waste gate had been "bent open" but they said it looks fine, but Ill try the hose thing anyway. I got the car from Lou Fusz Chevrolet in St. Peters Mo (suburb of STL), I have already called and tried to...

I have an 03.5 MSP and have noticed the following on my boost gauge 1st-4psi 2nd-10psi 3rd-13psi 4th-15psi I know the factory settings are 7psi so idk whats going on here I'm the third owner of this car so I have considered some knuckle head monkey business, but for the life of me I can't find a...