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vr401

vr401

Member Since 31 Jan 2006
Offline Last Active Today, 08:29 AM
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In Topic: Soon to be E85

13 January 2019 - 06:18 AM

All done now.
Cooler and Evo X brakes on.
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In Topic: Soon to be E85

25 December 2018 - 02:58 AM

My latest upgrades.
Evo X wheels and soon to upgrade to evo X front brake setup.
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I also got new HDI intercooler kit
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In Topic: Soon to be E85

10 October 2018 - 10:23 AM

How are you getting 3 stages of voltages at the pump? I know there is 2 on the Evo ECU.. not familiar with a 3rd stage.
I was thinking to change out the low voltage resistor block with a pwm module. That way the pump duty could be adjusted infinitely.
Great to see you are still going with this car.


I kept stock evo 7 fuel pump voltage control and besides that i connected pressure switch to my vacuuum line that switches on at 15psi triggering relay I setup to let the power to pump directly from battery using 15amp fuse and very thick wire. It's like running hardwire setup but pressure switch turns on the relay instead of constant high voltage so at low psi it remains on stock voltages.
This helps to control base pressure at idle. Evo ecu lets you dial in the loads vs rpm to turn on second stage voltage so i set it up the way it makes smooth transition to high voltage. If it turns on early low is 9v to high around 12v pump suddenly bumps the fuel pressure so it may cause reach run if set too low.

Hope it all make sense

In Topic: Soon to be E85

27 September 2018 - 01:47 PM

BTW: I've tested my base pressure today. With all radium staff plus walbro 460 on stock low voltage and stock fpr with venturi pipe drilled to 3.5mm pressure sits at 45psi without vacuum hose. Pretty close to stock 43psi so I'm more than happy to leave it as is.   


In Topic: Boden's RVR HSGR

27 September 2018 - 01:46 PM

Post #73 suggests a Radium FPR....

Yea, I've seen that after i wrote all the above so i couldn't bother changing it.

 

Radium has great products.