Quote:
Originally Posted by GJF
What's going on with that semi surge before full boost? Are your AFR's linear on boost? Your running wasted spark? Plug gap? This only started happening when running 20psi?
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You know, I've wondered the same. I always wondered if it's the MAP getting maxed out. It's been awhile since I logged, but I believe the AFR's go richer fairly linear.
Wasted spark with Ford EDIS ignition.
Plug gap is 0.025".
And yes, once it ran a Holset HX40, I kicked up boost from 1 to 1.4. It happened (hard hitting surge) around this time IIRC.
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Cory - turbo'd '87 C3.2 Guards/Blk, 3.4, 7.5:1 CR, 993SS cams, Borg-Warner S366 turbo @ 1.2-1.5 bar, Treadstone full bay IC, 70mm TB, TiAL F46 WG, HKS 1 1/2" BOV, twin 044 pumps, MicroSquirt AMP'd w/GM smart coilpack, Bilstein coilovers, Tramont replica Speedlines (285's rr, 225's frt), Big Reds frt, 993 rr., tower brace, MOMO wheel
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