View Single Post
Old 04-17-2002, 09:11 PM   #1
Dark_5.0
Registered Member
 
Dark_5.0's Avatar
 
Join Date: Apr 2001
Location: Staging lane
Posts: 4,337
Default Fuel pressure at high altitude. etc...

I am having hell finding just the right fuel pressure for my speed density stang....

MY THEORY the stock fuel pressure is set at 39psi....If you go up to say 3000ft the car would actually be running a lil' rich, and you could actually gain HP by cutting back the fuel pressure.

Some of the people on this board have almost the exact same mods as me and run 44-45psi of fuel pressure......My car seemed like it performed better at 42-43psi.....I am asuming that my car likes less fuel pressure cause I am making less HP cause of the altitude.

Nitrous also seems to knock more time off at high altitude than it does at sealevel.....I am assuming that this is do to the fact that nitrous makes Oxygen as a buy product wich counteracts the thin air.

I am just thinking out loud......and trying to figure out if the fuel to nitrous ratio is going to be different at high altitude compared to sea level....Since nitrous has a greater effect on cars at high altitude than at sea level IMO

I would like to here what people think good or bad.

Later,
__________________
92' LX-Big brakes, Lots and lots of suspension, GT40X heads, Ported cobra intake, stock cam, Vortech SC trim.
00' Lightning-Stock
88'CRX-13 second ego killer
Dark_5.0 is offline   Reply With Quote