My scan data (Moates) shows the A/F at 11.73 as soon as TPS goes above ~65%, and the injector pulse ~9.5-10.5. I know it looks like the injector is going static and thus the loss of performance I'm feeling at WOT vs. 3/4. My question...is the 11.73 a referenced value in the chip when going into PE? If so, if it was say 12.5, maybe my injector pulse would be more like 8-9ms. With my mods I can see the need for 24# injectors, but I'm planning on doing those with a SuperRam in ~6 months. What I'm planning to do before that is getting set up to burn my own prom. It would be nice to think I could enhance my WOT performance with my current set up. By the way, I'm running a crap JET chip...good news is, sounds like the JET module will make it easier on me when I start burning.

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'87 Formula WS6 - ZZ4 Crate TPI, SDPC ported heads, LT4 hot cam, 1.6RR, Accel runners, Accel lower, ported plenum, Edelbrock 58mm TB, Crane Fireball ignition, SLP cold air, SLP headers, !cat, Summit exhaust cutout, Walbro 255, Koni yellows, aftermarket panhard & LCA's.

 

I doubt your injectors are going static at only 9-10 msec unless you're still hitting 10 msec at 6000 rpm. You're feeling a loss in performance because it's too rich. Yes, leaning it out with a higher A/F ratio would reduce your injector pulsewidths some. You'll love being able to change a ton of things (especially the part-throttle stuff) burning your own chips.

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Greg Westphal
'87 IROC 355TPI/A4