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safc2 tuning

Old 03-16-08, 08:04 PM
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Exclamation safc2 tuning

so here we go.

i have a 88 10th ann rx7 turbo. so far the mods i have are
-RB turbo back exhaust
-s5 turbo with a knightsport upgrade( just a replacement bigger compressor housing and turbine. i think its considered a t3/to4e hybrid)
- rat nest and all emmisions removed with block off plates
-throttle body mod
-xtd 6 puck clutch
-fcd
-walbro 255lph fuel pump
-custom t.i.d.
-dual alternator pulley
- fresh rebulid with app 1500 miles on it
-larger spark plug wires, ngkr plugs
-blitz blow off valve
-550cc primaries
-1000cc secondaries
-safc2
-boost gauge

..........with that said my questions are about tuning this setup with the safc. i have a bad hesitation once my secondaries come in. now would this be running really rich b/c of the 1000cc secondaries? and would i just need to adjust the % down through the safc? i would love to get any anwsers i can get with this. also its pulling around 10 psi once the studder(hesistation) is through.
thanks,
colby
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Old 03-18-08, 02:12 PM
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well after hooking up the safc and playing around with it i ended up adding more fuel throughout the 4000-5000 rpm range. the ne-points i have set are 4000,4200,4600,5000. then i have the fuel added at those points at 4%,10%,9%,4%. this has gotten most of the hesistation gone but you can still feel a little bump when going through the rpm range. as for now i am pleased but am probably going with something more along the stand alone position or another piggy back with more adjustments. thinking aobut rtech with the palm pilot.
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Old 03-18-08, 04:20 PM
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I am running a similar setup to what you have. What really worked for me was to get a wideband sensor and set up the throttle position wire to read boost instead of throttle postion. With the wideband sensor you can see your afr's at all rpm's and adjust accordingly, it really made a difference. They are expensive but in my opinion well worth it.
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Old 03-20-08, 08:33 PM
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so noone else??? will it help to wire the tps wire up to the map/boost sensor wire instead??any help please?
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Old 03-23-08, 06:05 AM
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you dont really need to buy a wide band either. another option is to go to a dyno. they all have to wideband your car to get air fuel right.

how much are you boosting? in my opinion 1000cc injector s is alot of injector for 10 psi. but thats just me.
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Old 03-23-08, 06:53 PM
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10-12 off of just the wastegate. im about to put a boost controller on and want 14 psi. it still seems to studder in 1st gear though. is that just because their is no load and not as mus psi built up?
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Old 03-27-08, 11:06 AM
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no one???
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Old 04-01-08, 01:23 PM
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so what would yall think i would need to do running 550cc primaries and 1000cc secondaries.??? right now i have a little added but that would make no sense
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