Tuning my car, hitting a wall at 10 psi and up.
#1
Tuning my car, hitting a wall at 10 psi and up.
im in the process of tuning the fd right now and it been going pretty smooth until now. when i am under 8 psi or so it feels really good and strong and as soon as i hit 10 psi or greater i can feel the car being held back. AFR's were at about 10.2 to 10.8 at 10 psi. could being to rich cause this or is it in my timing map. mods are streetport, holset WH1E, 550 and 1600 injectors and supporting mods. thanks in advance guys.
#2
Boost Up, Seals Out!!
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Join Date: Sep 2005
Location: Jacksonville, Fl
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Do you have an aftermarket ignition system, specificly the HKS twin power? If yes, if seen several problems with this controller failing, it results in poor startup and misfiring under boost. Easy way to check is the LED on the box should be flashing at a pace with the rpm of the engine, if the LED is not on or flashes intermitently its probly bad. What EMS do you use?
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#21
wannaspeed.com
iTrader: (23)
This is the first time I've actually looked at the timing map, as before I was replying from my cell phone and couldn't see it. Timing looks alright to me. Just some weird stuff going on in the P6 - P8 area in low RPMs, I doubt it's even noticeable when driving, and its at low load so its not dangerous.
#24
wannaspeed.com
iTrader: (23)
No it doesn't look too advanced, it just isn't smooth, but its in an area that would be very hard to hit, probably only by free revving. maybe not even then. It wouldn't have much if any effect on how the engine runs, it's more of a visual thing. I try to keep everything as smooth as possible so when I look at a map I'm not distracted by large differences in the timing. I use the color feature of the maps and it makes things stand out more.
Glad to hear the engine is happier with the reduced fuel. It should keep everything cleaner and get more life from your plugs not running so rich. What AFR's are you sitting at now?
Glad to hear the engine is happier with the reduced fuel. It should keep everything cleaner and get more life from your plugs not running so rich. What AFR's are you sitting at now?
#25
well i had to go back to school today so i wont be able to play until next weekend but i got them down to about 11.2-5 at 10 psi. im going to continue when i get back on thursday and get a little closer to 15 psi slowly but surely. thanks for the help again guys.