Hi all
i have a s1 bluebird with a fj20 t and an EMA dual sport 1 computer , woudl anyone be kind enought to send me a base map for me to get a starting point
this is the old girl so far
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I too would also be intrested in any maps people have for a FJ20ET (dualsport ECU).

Dont have a map, but i can get you to have your engine running.

Idle and full vacuum: run 15-20 degrees adv so between 500-1000rpm. Then work your way up in a linear fashion to 40-42 degrees at 3500rpm and continue at 40-42 degrees till your redline.

Working your wap up to atmospheric pressure (ie 0 on the boost gauge) decrease again in a linear fashion from and above 3500rpm from 40-42 degrees to 32 degrees. Below 3500, stay with the figures used for your vacuum. After that, remove 1 degree for every psi of boost.

Make sure your timing is spot-on...ie your 0TDC is acutally 0 degrees TDC on the engine and the computer or it wont run well or youll ping it.

As for injection, depends on what your injectors are and how your cpu runs them. You can actually be very rough and the engine will run ie add as much fuel as you can till you see black smoke and back off until you here the engine pick up in revs a little at a certain load point and you should be safe-rich...or you could use a wideband sensor. Not the best of ways and certainly not something to do on a newly rebuilt engine. You could also work with duty cycles if you know the cc range of your injectors. Ie you shoud max your 370cc injectors at 12-13psi (100% duty cycle) and you should idle at about 1-2 percent.

Duty cycle = time in ms injectors are open divided time for the engine to do 2 revs. Since its a percentage, obviously times it by 100.

Ie at 6000rpm, your engine takes 20ms to do 2revs, at 3000rpm, it takes 40ms.....

Hook up your cold start valve and get the crank ign timing right and cold start enrich right up there (20-30 percent should be more than adequate) and youll be right.

After that, time for a dyno tune :P

BF

well i have jsut taken some of your suggestions on board and done a bit of rough playing
its is now not running lean and am confident to drive i tto the tuners

many thanks
len

Great mate,

let us know how it goes and a scan of your graph always get forum-goers like myself happy.

Boosted frog