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B58 Injector Flow Rate Data

Comprehensive injector flow rate data for BMW B58 and B58TU engines.

Figures are calculated based on available online information and average BSFC for each fuel.

Gen 2 & Up injectors do not fit in Gen 1 engines due to a 6.5mm injector tip vs 7mm on Gen 1. Gen 2 injectors only flow the same or more than Gen 1 equivalents at 5000PSI.

BMW B58 Gen 1 Injector Flow Rate Info

InjectorFlow @3600PSIFlow @2900PSIRated PressureBMW Part #Requires TuneCompatibility
B58 EU6Est. 950CCEst. 850CC20mPa/2900PSI13538625396NoB58 Gen 1 Only
IFX150Est. 1425CCEst. 1250CC29mPa/4200PSIN/AYesB58 Gen 1 Only
XDI +40% InjectorsEst. 1330CCEst. 1200CC25mPa/3600PSIN/AYesB58 Gen 1 Only
XDI +75% InjectorsEst. 1660CCEst. 1490CC25mPa/3600PSIN/AYesB58 Gen 1 Only
Nostrum S1Est. 1280CCEst. 1150CC25mPa/3600PSIN/AYesB58 Gen 1 Only
Nostrum S2Est. 1570CCEst. 1400CC25mPa/3600PSIN/AYesB58 Gen 1 Only

BMW B58TU Injector Flow Rate Info

InjectorFlow @5000PSIRated PressureBMW Part #Requires TuneCompatibility
B58TU EU6Est. 1000CC35mPa/5000PSI13538656548NoB58TU
S58Est. 1300CC35mPa/5000PSI13538671991Only If Swapped With S58B58TU
IFX350Est. 1300CC39mPa/5600PSIN/AYesB58TU
IFX350XEst. 1700CC39mPa/5600PSIN/AYesB58TU
XDI +40% InjectorsEst. 1430CC40mPa/5800PSIN/AYesB58TU

BMW B58 Gen 1 Injector Max WHP

Injector93 OCT @2900PSI93 OCT @3600PSIE85 @2900PSIE85 @3600PSI
B58 EU6486540372414
IFX150703802508578
XDI +40% Injectors676749487540
XDI +75% Injectors840934606674
Nostrum S1656728503560
Nostrum S2802890614684

BMW B58TU Injector Max WHP

InjectorMax WHP 93 OCT @5000PSIMax WHP E85 @5000PSI
B58TU EU6552420
S58 EU6720546
IFX350720546
IFX350X960691
XDI +40% Injectors792600
HPFP & LPFP DataSpark Plug Info