Brand new Voodoo, Bipes and a set of Supra injectors
08-12-2009, 01:58 AM
#11
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Location: Killen, AL, 35645
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Leave it to me to encourage the selling of this man's product. True, while there may be more "powerful" options on the market, such as Megasquirt PNP, adaptronics, link, or hydra. 350 dollars shipped for the voodoo card, a set of 305cc injectors, and the bipes is an incredible deal. The only reason why I haven't jumped on this is because I got my car fine like it is. True, the Voodoo card may be "old" technology in some sense, but its easy and straight-forward installation and tuning makes it an excellent choice for someone seeking a nice moderate boost in horsepower with perfect drivability in and out of the boost...
On my 1999 10th Anniversary with the Mazdaspeed intercooled turbo kit, I have the voodoo card's fuel pods turned to max for running 8psi, and I have a static ignition timing at 6 degrees before top dead center. This ensures I have no predetonation in temperatures of 100 degrees, though I have been able to run 8 degrees BTDC in 60-70 degree weather...
With the larger injectors and the bipes electronic ignition retard, you might be able to run 10 psi given the bipes can retard more than just 4 degrees ignition retard. That being the case, you can advance your timing to 14 degrees BTDC and program the bipes the way you need it. Ultimately, the biggest limiting factor will be the injectors, as the stock ecu's can only idle so big of an injector. General rule of thumb is the Supra 7MGE 305cc fuel injectors is about as big as you want to go, and as I said earlier, with a good fuel and ignition tuning they might be good for 10 psi. For 350 dollars, can't beat that and once it is tuned you never have to mess with it again
So 94-97 injector flow around 260cc/min at 48.5 psi and the 7MGE flow 305cc/min at 48.5 psi. On the 99-05's stock fuel pressure is around 60 psi, so 7MGE injectors actually flow around 320-330cc/min.
On my 1999 10th Anniversary with the Mazdaspeed intercooled turbo kit, I have the voodoo card's fuel pods turned to max for running 8psi, and I have a static ignition timing at 6 degrees before top dead center. This ensures I have no predetonation in temperatures of 100 degrees, though I have been able to run 8 degrees BTDC in 60-70 degree weather...
With the larger injectors and the bipes electronic ignition retard, you might be able to run 10 psi given the bipes can retard more than just 4 degrees ignition retard. That being the case, you can advance your timing to 14 degrees BTDC and program the bipes the way you need it. Ultimately, the biggest limiting factor will be the injectors, as the stock ecu's can only idle so big of an injector. General rule of thumb is the Supra 7MGE 305cc fuel injectors is about as big as you want to go, and as I said earlier, with a good fuel and ignition tuning they might be good for 10 psi. For 350 dollars, can't beat that and once it is tuned you never have to mess with it again
So 94-97 injector flow around 260cc/min at 48.5 psi and the 7MGE flow 305cc/min at 48.5 psi. On the 99-05's stock fuel pressure is around 60 psi, so 7MGE injectors actually flow around 320-330cc/min.
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08-12-2009, 04:28 PM
#14
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(the difference from 6 BTDC to 8 BTDC on my car is very noticable)
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08-13-2009, 05:12 PM
#16
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Join Date: Apr 2009
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hey man! just got the pm. I will do the paypal tonight when i get off work! A quick question... how long do you think before it gets here im in socal??
Also Cody Strife thanks for the help in advance, because i will need it! This is the first turbo build ever and i want to do it right the first time!
Also Cody Strife thanks for the help in advance, because i will need it! This is the first turbo build ever and i want to do it right the first time!
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