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Sputter at high rpm?

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Old 08-18-12, 01:18 AM
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Sputter at high rpm?

WOT 1st and 2nd gear are fine. when WOT in 3rd, 4th, and 5th gear it feels like a fuel cut.
3rd and 4th cut at 6000 rpm and i just change gears, and in 5 the same choke feeling at 5000 rmp. car was built before i got it from allrotor93. its almost as if it was set up that way from previous owner?? i can list some of the things for sale from the part out if that'll help.

new motor 800 miles, all factory - aftermarket downpipe and OEM BOV vented to atmosphere.
Old 08-18-12, 12:33 PM
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What boost are you running?
Old 08-18-12, 02:02 PM
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7 psi under 4500, above 4500 its 10 psi until it hits that cut/choke. It's the way its set up I guess. I've made no mods.
Old 08-18-12, 03:01 PM
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I've been told I have a supra fuel pump. Im unsure of the injectors. If really feel like a limiter was set up.
Old 08-18-12, 03:10 PM
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A list of previous mods. Now all OEM. Delete AST, Delete A/C, down pipe.

This was on the car before it was stripped and rebuilt to factory specs + or -

BDC Half-Bridgeport Engine, 1900 miles, RA Super Seals,Pineapple O-rings,

500R single turbo with A-Spec long runner manifold (hotside and manifold ceramic coated, manifold also wraped in Lava Wrap),Tial 44mm Wastegate

Custom V-Mount intercooler using GReddy intercooler and Koyo Radiator

XCessive Equal Length Lower Intake Manifold

Dual 18 Row oil coolers with all new lines and Mocal Oil Thermostat

Fuel Kit (1680cc/850cc,KG rails with stainless lines and aeromotive pressure regulator)

Nippondenso Supra fuel pump

Apexi N1 Catback exhaust

RX7 Store resonated midpipe using magnaflow resonator

Exedy Twin Plate Clutch and Flywheel

HKS Twin Power

CoolingMist CMGS Water/Methanol injection system

GReddy Profec B SpecII Boost Controller

Innovate LC-1 WB O2 and controller

Apexi PFC with commander and Datalogit
Old 08-18-12, 03:12 PM
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I was told I have this installed

Nippondenso Supra fuel pump

I can see after market wiring and relays to it.
Old 08-18-12, 06:13 PM
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Admit delete thread please
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