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B13 FTW
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179 Posts
Discussion Starter #1
how much PSI of fuel do i need to have to run 15 lbs of boost on a stock B.B DET motor
 

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merely a flesh wound
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15,274 Posts
Your fuel pressure is based on the ecu program, not the amount of boost you're running. Stock DE & DET ecu's are set for 3bar. Most JWT's are also 3bar, unless you specifically request 4bar.

The answer to your question is also going to depend on what injectors and turbo you're running. If it's a T25 & 370's you'll need 4bar fuel.

370's at 3bar will top out around 250 WHP, at 4bar they're good to about 290 WHP.

Refer to this chart -
http://www.sr20forum.com/technical-information-library/142897-inj-size-whp-output.html

C
 

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agent camel toe
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9,396 Posts
how much PSI of fuel do i need to have to run 15 lbs of boost on a stock B.B DET motor
43.7 with the vac line disconnected..hope u have a walbro to support the fuel
 

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Registered
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198 Posts
i run 15 psi with 3 bar fuel, rc 555cc injestors and 300zx twin turbo fuel pump.
car has been like this for 3 years and beaten on daily and runs like a top but rumor has it that my motor is blessed
 

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merely a flesh wound
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