Soon to be E85
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evo-gsr
Well-Known Member
Updates on how the MAMBA went?
Turbo is great mate.Comes on boost very early. Couple of hundreds of rpm latter than evo 8 stock but keeps pushing to the red line.evo-gsr said:
Well worth the money.
I hit the limit of my injectors and pump as you can se in the pic running lean after 5500rpm
With low boost as shown it made great power.
Now i have walbro 460 installed, FIC 2150cc injectors, new radium fuel rail with inlet rubber hose and fuel damper as well. Pump is running 3 stages voltage and there is plenty of fuel up the top.
Just need a time to start tuning for 30-32psi of boost to see where it's going to end up being.
this is dyno readout with mamba run and last run on Evo 8 turbo
More to come
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.
4piknup
master of none
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 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.jack be nimble said:
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
4piknup
master of none
Absolutely makes sense!
I wasn't keen on the factory resistor to drop the pressure on the low setting. It's just like running a big toaster under the bonnet. I thought a pwm module would be much more efficient.
For highspeed pump, i was thinking to use a lipo, and your relay setup (or actually a variable voltage trigger on the AFM or boost sensor, or TPS). The relay to trigger a 18v or 20v lipo. When it's off, a charger could recharge it.
I wasn't keen on the factory resistor to drop the pressure on the low setting. It's just like running a big toaster under the bonnet. I thought a pwm module would be much more efficient.
For highspeed pump, i was thinking to use a lipo, and your relay setup (or actually a variable voltage trigger on the AFM or boost sensor, or TPS). The relay to trigger a 18v or 20v lipo. When it's off, a charger could recharge it.
4piknup
master of none
Awesome! Great to see a update on this ride
Wow still going strong . I remember you taking me for a ride in it when i flew down to Sydney to buy the rvr. After going for a ride in your evo i ended up getting a evo 8 mr thanks to you hahaha i need a tune my evo is trash
Yeah mate.boostn4g63 said:
Car is still going strong. Latest upgrades are SD tune and now over 400kwatw
I'm taking her to roll racing on 17th of July. Special one called state of origin.
If you were close i wouldn't mind helping you tune it.
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