Thread: HPFP swap
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T_H_O_M_A_S T_H_O_M_A_S is offline
Junior Member
Posts: 150
Join Date: Oct 2017
Car: M135ix
Default 03-04-2019, 08:50 PM

Originally Posted by IK6SPEED

My stock F30 N55 HPFP can hold that and more.

As for alternatives, the XDI-35 runs at 2600-2900 PSI and can easily hold 2900PSI. The XDI-60 can run and hold 3500PSI (but the F30 injectors probably won’t like that).

So all in all, I’m not seeing where this is really much of an upgrade. In fact on my car, it would be a downgrade from stock.

Well i ve got that comment once more from somebody else . in every log i have so far from wegde /MHD , even with the oem and the evo pump , at the beginning of the log , the rail pressure is higher , but tapers to 2050 . in the V1.10 of the app there is also a rail pressure required . the rail pressure mean just seems to follow that . why its only a little over 2000 psi idk ? maybe its tuner related ? . what i do see in those logs , is with the oem pump rail pressure dropped further when hovering around 18 psi , the evo version doenst . 800 psi or 2000 psi is a decent upgrade to me . its only to be seen how far it can be stretched when ,i or others who are willing to try this , going with E20 or more

as far as the connector goes ,it has to do with production dates
If your car was built before March 2014 you may need a new plug.
It was changed around 03/2014

M135i PWG , FBO , PS2 , LPFP st2 , HDP6 custom for N55 , wedge MHD mapping , XHP AT8

Last edited by T_H_O_M_A_S; 03-04-2019 at 09:28 PM..
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