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#1 |
Registered Member
Join Date: Sep 2002
Location: southeast texas
Posts: 90
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![]() While dynoing my car this last weekend the air fuel ratio went to 17:1 as soon as we shot 150-hp at 3500 rpm . The dyno operator shut everything down in enough time that no engine damage occured. I have a walboro 190-lph in tank pump with factory lines, new fuel filter(high flow), and a kirban adj. fuel reg set to 40 psi ,24 pound inj.. Everything ran fine on 80 hp shot. On motor made 260 at the wheels on a mustang dynometer . The n2o kit is made by nitrous works and is obviously a wet kit. Im pretty sure the kit robbed the fuel pressure from the motor. So with all that said has anyone experimented with adding an in-line pump after the in-tank pump to boost flow/pressure available at the regulator.
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AFR 1492 heads,Track Heat Intake, d.s.s super pro bullet 331, lakewood bell, king cobra, 3550 ,UPR shifter, aluminum shaft, 4.10, 31-spline, spool,hoosier27x10, moroso ds-2, 175-juice, egt...11.40 on motor spray pass coming. |
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#2 |
Registered Member
Join Date: Aug 2001
Location: Huntington NY
Posts: 573
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![]() Are you sure you jetted the fuel correctly when you changed to the 150 setting? What was the FP doing when you hit the nitrous? It is a possibility that you may need to jet the fuel up to reach the required level of enrichment.
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-1993 Mustang, 900rwhp 03-04 cobra based 4v swap, full Griggs setup, project underway -1994 Ranger w/ 427cid windsor (daily beater) check it out! |
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#3 |
Registered Member
Join Date: Sep 2002
Location: southeast texas
Posts: 90
|
![]() yes ,jetted correctly/fp@40psi, think my walboro pump(190) not enough,may try 255 holleywhat ya think?
__________________
AFR 1492 heads,Track Heat Intake, d.s.s super pro bullet 331, lakewood bell, king cobra, 3550 ,UPR shifter, aluminum shaft, 4.10, 31-spline, spool,hoosier27x10, moroso ds-2, 175-juice, egt...11.40 on motor spray pass coming. |
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#4 |
Registered Member
Join Date: Aug 2001
Location: Huntington NY
Posts: 573
|
![]() the 255 should be plenty, Thats what i am running with a 125 Zex kit
__________________
-1993 Mustang, 900rwhp 03-04 cobra based 4v swap, full Griggs setup, project underway -1994 Ranger w/ 427cid windsor (daily beater) check it out! |
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