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Will larger secondaries cause fuel cut? S5 TII

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Old 01-30-10, 02:20 PM
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Will larger secondaries cause fuel cut? S5 TII

Will having larger (880's) secondaries cause fuel cut with an OEM ECU?

Setup is:

91 TII
88 block
streetport
S5 sensors/electronics/ECU (N370)
FCD
Precision SC61/racing beat manifold
550/880 injectors

Has a wideband and SAFC II...running 8.5-9psi
Old 01-31-10, 09:43 AM
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Fuel cut will occur regardless on a stock ECU without an FCD at 8.6 PSI.

If you have an FCD, fuel cut will not occur regardless of injector size.

The ECU has no way of knowing what sized injectors you have installed, thus changing injector size will have no effect on ECU operation.
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