Fuel Pressure Regulator/NOS
09-13-2001, 09:21 AM
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Fuel Pressure Regulator/NOS
Does anybody know how many pounds of pressure the fuel regulator in a 1999 2.0L Hyundai Tiburon is? I am putting in a 55 shot of NOS and I don't wanna screw up my engine. For the time being I plan on getting an adjustable fuel pressure regulator, a larger fuel pump and an Air/Fuel Ration gauge so I can see if I am running to rich or to lean. Can somebody please give me some advice. I have heard that you can runn a 55 shot of NOS on a stock system in a tiburon, but I don't wanna screw up anything. Thanks
09-13-2001, 09:57 AM
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The stock pressure is 44.3psi, or exactly 3 bar.
A larger fuel pump is fine and dandy, but unless you're doing a wet injection setup, you will want a high PRESSURE fuel pump. A large fuel pump such as an Eclipse GSX/GST setup will flow significantly more fuel, but will max out at the same pressure that our stock unit will (read: 60psi or thereabouts)
You need more actual fuel pressure to get the stock injectors to spray more than they want, thus you need a pump that can deal with high pressures. A "bigger" pump isn't necessarily going to cover that, you need to ensure your new pump can deal with high pressure as well.
Just wanted to interject that FYI...
-Red-
A larger fuel pump is fine and dandy, but unless you're doing a wet injection setup, you will want a high PRESSURE fuel pump. A large fuel pump such as an Eclipse GSX/GST setup will flow significantly more fuel, but will max out at the same pressure that our stock unit will (read: 60psi or thereabouts)
You need more actual fuel pressure to get the stock injectors to spray more than they want, thus you need a pump that can deal with high pressures. A "bigger" pump isn't necessarily going to cover that, you need to ensure your new pump can deal with high pressure as well.
Just wanted to interject that FYI...
-Red-
09-14-2001, 04:04 AM
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While we are on the subject of fuel pumps and NOS, If I were to run a 65 shot system how much would I have to modify the fuel system. Also where can we get the larger fuel injectors/pumps/regulators. How hard are they to change out. Thanks in advance.