2qik4u
15+ Year Contributor
- 180
- 0
- Oct 5, 2007
-
Free Soil,
Michigan
First off if you havent done and equivalent built or extencively worked on an equivalent build to mine dont waste my time with maybe nonsense please. I have a 98 eclipse 420a with stock ecu. I have a missing link. Bottom end is bored .020 over with wiseco forged pistons, eagle h-beam rods and stock equivalent forged crank. I have also done a very extensive port and polish on the head with 1mm oversized valves and upgraded crower springs,retainers,and positive valve stem seals. I picked up 50 cfm on intake side and 30 cfm on exhaust side. I still have stock cams and stock cam gears. I have installed a walbro 250lph fuel pump and RC Engineering 550cc injectors with a SARD 1:1 rising rate fuel pressure regulator. I have a custom tubular turbo manifold with an XSPower t3/t4 thrust bearing turbo and a front mount intercooler. I have wired an SAFCII but have done no corrections because I need to still purchase and install a wideband 02 sensor but don't know which one I want yet. I also have yet to install a Greddy profec e-01 boost controller which I have already but don't yet have it installed. right now I have installed a homemade ball and spring manual boost controller. I have an unorthodox underdrive crank pulley. Fidanza ultimate aluminum flywheel and spec stage 3 clutch. also have short throw shifter. I guess my first question would be what way does the little white disk have to sit in my missing link?? there is a narrow end and a wide end to the disk which end goes up??? Second question it I have an autometer 02 sensor and autometer guage and the wiring goes purple, red, black, now what wires form my stock 02 sensor splice into that and what colors go with what?? I know the purple is the voltage wire that tells the guage the ratio and I know the black and red are for power and to run the heater for the sensor itself but don't know how to hook my ecu up to this cause wire colors don't match.
now the rest of what I'm concerned about involves the actual tuning. when I get my wideband I know what my voltages need to be for rich lean and stoich but I don't understand fuel air correction with the SAFCII. DO I need to go positive ir negative with my corrections with 550cc injectors?? when I go positive does that tell the ecu to feed more or less fuel?? if anyone who has proven results with a similar setup would help me I would very much appreciate this. this is my first DSM and actually my first 4cyl build. when engine was first built we had it on engine dyno and it ran great pushing almost 260hp but that was with a pro running it on a standalone that was part of the engine dyno and unfortunalely this guy passed away in a motorcycle vs, tractor trailor accident so I can not seek his help and now I am Kind of lost. PLease help me.
Sincerely,
2qik4u
PS if I don't reply right away its cause Im only able to get on internet on saturdays and sundays.
1 more question. does anyone sell upgraded or custom ecu's for our na motors that have been boosted??
now the rest of what I'm concerned about involves the actual tuning. when I get my wideband I know what my voltages need to be for rich lean and stoich but I don't understand fuel air correction with the SAFCII. DO I need to go positive ir negative with my corrections with 550cc injectors?? when I go positive does that tell the ecu to feed more or less fuel?? if anyone who has proven results with a similar setup would help me I would very much appreciate this. this is my first DSM and actually my first 4cyl build. when engine was first built we had it on engine dyno and it ran great pushing almost 260hp but that was with a pro running it on a standalone that was part of the engine dyno and unfortunalely this guy passed away in a motorcycle vs, tractor trailor accident so I can not seek his help and now I am Kind of lost. PLease help me.
Sincerely,
2qik4u
PS if I don't reply right away its cause Im only able to get on internet on saturdays and sundays.
1 more question. does anyone sell upgraded or custom ecu's for our na motors that have been boosted??