North American Turbocoupe Organization



fuel pressure - 42psi?
jabobia Offline
Member
#1
i just tested my base fuel pressure with two different gauges and its 42psi base...56psi with 14psi boost 58psi f/p with 16psi boost

is my regulator going south on me?...would this explain the rich condition im having (rough idle - lots of carbon on plugs) and the bogging?

-james


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87 TurboCoupe - 5spd
87 Thunderbird TurboCoupe - 2.3T, T5, 3.55L - K&N, 18psi - 16.14@88mph(2.37 60')
88 Thunderbird Sport - 5.0SO, AOD, 2.73L - 16.77@82mph(2.39 60')
www.cardomain.com/id/jabobia
jabobia.com
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Pete D Offline
Administrator
#2
I don't think fuel pressure is the problem. 42 is in the range, but let me ask if this was with the vacuum line to the FPR connected, or disconnected.
Pete Dunham


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jabobia Offline
Member
#3
disconnected

-james

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87 TurboCoupe - 5spd
87 Thunderbird TurboCoupe - 2.3T, T5, 3.55L - K&N, 18psi - 16.14@88mph(2.37 60')
88 Thunderbird Sport - 5.0SO, AOD, 2.73L - 16.77@82mph(2.39 60')
www.cardomain.com/id/jabobia
jabobia.com
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Harvs Offline
Senior Member
#4
sorry if its off topic, but im going to buy an adjustible FPR. How do i know what to set it at if i dont have a gauge?
Sandlewood beige 88 coupe 93k/ super 60 T3 at 24 pounds/ ATR 3" no cat or tail pipe/ 255lph high pressure pump/ Kirban AFPR at 42/ Spec stg3/ GN FMIC/ 1g DSM BOV/ 14* timing/ disconected KS/ Tri-ax short throw/ Autometer boost,vac and air to fuel/ 140 spedo/ Ford motorsports 5300-c springs/ tubular rear upper cntrl arms.
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Noname
Unregistered
#5
Quote:Originally posted by Harvs:
How do i know what to set it at if i dont have a gauge?

You need a gauge to properly set it. If you don't have one and don't want to fork over $40 for one, your only option is to find a friend that has one or can otherwise get access to one.
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jabobia Offline
Member
#6
yeah i had to borrow my brothers...i cant afford that yet [Image: biggrin.gif]

-james

------------------
87 TurboCoupe - 5spd
87 Thunderbird TurboCoupe - 2.3T, T5, 3.55L - K&N, 18psi - 16.14@88mph(2.37 60')
88 Thunderbird Sport - 5.0SO, AOD, 2.73L - 16.77@82mph(2.39 60')
www.cardomain.com/id/jabobia
jabobia.com
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Jeff K Offline
Administrator
#7
James, it sounds like your fuel system is in great shape to me. 42 psi base is just fine.

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Jeff Korn

88 Turbo Coupe: Intake and exhaust mods, T3 turbo at 20 psi, forced air intercooler, water injection, bypass valve, Ranger roller cam, subframes, etc., etc.. // 86 Tbird 5.0 (original owner): intake, exhaust, valvetrain mods, 100 HP nitrous, ignition, gears, suspension, etc., etc.... // 91 Escort: Bone stock winter car // 02 Taurus Vulcan(wifes car)
Jeff Korn

88 Turbo Coupe: Intake and exhaust mods, T3 turbo at 24 psi, forced air IC, water injection, BPV, Ranger cam, subframes, etc., etc.
86 Tbird 5.0 (original owner): intake, exhaust, valvetrain mods, 100 HP N2O, ignition, gears, suspension, etc., etc.
11 Crown Vic Interceptor
14 Toyota Camry (wifes car)
95 Taurus GL Vulcan winter beater
67 Honda 450 Super Sport - completely customized
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jabobia Offline
Member
#8
wouldnt the 3 extra psi make it run rich?

hmm [Image: confused.gif] this is very frustrating

what else should i look at?...i assume its spark related now [Image: rolleyes.gif]

-james

------------------
87 TurboCoupe - 5spd
87 Thunderbird TurboCoupe - 2.3T, T5, 3.55L - K&N, 18psi - 16.14@88mph(2.37 60')
88 Thunderbird Sport - 5.0SO, AOD, 2.73L - 16.77@82mph(2.39 60')
www.cardomain.com/id/jabobia
jabobia.com
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Pete D Offline
Administrator
#9
Check the resistance of the ECT. It should be around 24.3K ohms at 86 *F and 5.4K ohms at 158*F. A bad one doesn't always set a code.
I'm e-mailing some info.

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NATO Member. it's not a vice, it's an obsession
Letting the cat out of the bag is a whole lot easier than putting it back in.
88 TC X 2, 86 SVO, mods list at
http://www.turbotbird.com/showroom/pd_88tc.htm
Pete Dunham


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rairbird Offline
Senior Member
#10
Jabobia, have you run any codes? It may help you determine the cause of your rich condition.

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87 T/C, 5sp., Ported/Polished head, 1.89, 1.59 S.S Valves. Motorsport Lifters, A-234 cam, ported lower intake, Rod's S/S headers, 3" DP, T3/T04E 46, Gillis BCV, K&N Air Filter, 42LB injectors, kirban Adj. FPR, Walbro 255 FP, Diablo chip, Head and Main studs, APR rod bolts.
The next two mods are a guttted upper, and the GN intercooler, which I have but only need to install.
88 T/C stock, 5sp.
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