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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > SHO 220 psi pump - snow performance st3



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      01-17-2011, 06:07 PM   #1
enrita
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Drives: 335i - Big turbos
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SHO 220 psi pump - snow performance st3

So i am running this pump with dual nozzles that are rated at 60 psi:
1x225 ml/min
1x375 ml/min
2x 250 psi solenoids
Failsafe/flow is a labonte
My mix is about 70/30

Start psi 5-11 and power nozzle 11-13 psi

My procede is reading on 220 psi pump around 14 which should be around 700 ml/min.

Since i think that i am running too little meth for my high boost setup (19 psi) i upped the pressure of the pump to do some testing.
There is an allen screw on top of the pump which i turned clockwise till the end or at least to a point where it felt looser so i stopped.
Max flow of this pump should be 270 psi .

When i retested the flow i got straight away a nice 17-18 reading on the procede which should indicate a flow of 150-200 ml/ min more than on 220psi. So total 850-900 ml/min.

Now i guess first of all is probably not good to run 270 psi with 250 psi solenoids and that the pump will probably last less so i will try to set it at 250psi max.
I wonder if anybody knows how many full turns from totally closed are necessary to reach 250 psi and if you think i need to either get another 375 injector or even a 625 for my power (450whp? /psi levels. Last time i tested i was maxing out timings on 19/20 psi and 700 ml/min. What i find strange is that many here seems to run over 1000 ml/min of meth while it seems my engine is fine with 700?
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