Maximum Psi HPFP

Camus

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Hi,

I regularly check for new parts for the Supra and found out this HPFP:

https://maximumpsi.com/products/b58-toyota-supra-high-pressure-fuel-pump-a90

I was about to pull the trigger but then I read the description:

Genuine BMW B58 Z4 / A90 B58 Supra HPFP

Item '1' in diagram. BMW Part number - 13518631642

Upgrade for cars with early B58 engine. Will support 600whp on gasoline fuels, and will support stronger ethanol blends. Direct swap for early B58 cars. Will require extending wiring harness with included parts.


So I don't get it, early B58? Did Toyota/BMW released a revision on the B58 for the A90? Is this a stock part? Then why it says upgrade, don't really understand what's going on. Is this a real upgrade to the HPFP on the A90? This is basically the bottle neck of the engine right now, is the reason why people are using port injection.
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Guff

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Hi,

I regularly check for new parts for the Supra and found out this HPFP:

https://maximumpsi.com/products/b58-toyota-supra-high-pressure-fuel-pump-a90

I was about to pull the trigger but then I read the description:

Genuine BMW B58 Z4 / A90 B58 Supra HPFP

Item '1' in diagram. BMW Part number - 13518631642

Upgrade for cars with early B58 engine. Will support 600whp on gasoline fuels, and will support stronger ethanol blends. Direct swap for early B58 cars. Will require extending wiring harness with included parts.


So I don't get it, early B58? Did Toyota/BMW released a revision on the B58 for the A90? Is this a stock part? Then why it says upgrade, don't really understand what's going on. Is this a real upgrade to the HPFP on the A90? This is basically the bottle neck of the engine right now, is the reason why people are using port injection.
If I am reading this correctly, this is not an upgrade for Supra owners. This is an upgrade for BMW 40i owners with cars from 2015-2019. The TU revision of the B58 in the Supra and Z4 has an updated HPFP that supports higher pressures than the earlier B58s. So if you had a 2016 340i, this is an OEM Toyota/BMW part that will improve your old B58.
 

tisdrew

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Thanks for this post. So our fuel pump is attached to the injectors according to this diagram? Not an intank fuel pump like most I worked on.
With direct injection, there are 2 fuel pumps now. The regular 43psi in-tank pump that get it into the fuel rail and the new high pressure pump in the engine bay which flows it at incredible pressure (1500+psi) from the rail to the injectors.
 

Motorknut

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Does anyone know if the supra/g29 Z4 HPFP version is used in any other new b58 BMWs?
 

Twisted Tuning

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Does anyone know if the supra/g29 Z4 HPFP version is used in any other new b58 BMWs?
B58Tu (gen2) b58 use the same pumps. so say 2020 and newer in US, and maye 2019 in some other countries.
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