Aftermarket electric fuel pump, IHRA

IHRA answers this part for 29 of its classes. 2 of those answers permit the part outright and 12 permit it with stated conditions, leaving 15 that do not. 3 of the ones that do not are classes we read as open rather than as refusing it. 8 are inferred from how the class is written rather than quoted from a rule naming this part.

This page is IHRA only, and the bodies do not agree. The same part under IJSBA and UIM. Which one applies to you is decided by whoever sanctions the race you enter.

Where it stands, class by class

29 classes, grouped where the same rule gives the same answer rather than listed one by one, because an answer that holds for a class usually holds for every class that borrows its rules.

What each answer below means

OEM part required: This comes off. Only the part the manufacturer fitted is allowed here.
Not permitted, not listed in the rules: Treat it as coming off. The class requires the craft to stay stock except where the rules allow otherwise, and this part is not on the list, so this is our reading rather than a rule we can quote at you.
Legal, with conditions: Keep it, but measure it: the rules permit this part only inside stated limits.
Legal: Keep it. The rules permit this part in this class.
No rule, this is an open class: Probably keep it. The class carries no stock clause at all, so anything unlisted appears to be open. The rulebook does not say so in terms, and this is our reading rather than a permission anybody wrote down.

OEM part required 5 classes

Must remain OEM.

Runabout Lites · AA.3.3
Four-Stroke Ski Lites · N.3.2
Runabout GP2 · Y.3.3
Ski GP2 · L.3.2
Ski Lites · O.3.2

OEM part required 1 class

Four-stroke entries: Must remain OEM. · Z.4.3

Runabout GP3

OEM part required 1 class

The electric pump stays OEM for four-stroke and two-stroke entries alike (N.3.2, O.3.2). The only pump P.2.4 adds is an aftermarket crankcase-pressure pump on a two-stroke entry, with extra pulse line fittings on the crankcase. · N.3.2, O.3.2, P.2.4

Ski Limited

Not permitted, not listed in the rules 5 classes

On a closed list an unlisted modification is not permitted. · A.2.2, J.1

Legal, with conditions 2 classes

Manual pumps prohibited. Limits: max 4 psi.

Sport Spec · U.3.3
Ski Vintage · S.3.3