PCM Diagnostics & Tuning HP Tuners | Holley | Diablo

need spark help

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Old Jun 10, 2012 | 05:14 PM
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RPD_Vette84's Avatar
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Default need spark help

alright so ive been workin on my tune and it seems to be gettin better but goin through my log i noticed that my spark at full boost seems pretty low (to me).

first gear full boost was 8 degrees
second gear full boost was .5 degrees

cut-out closed and goin through 3" exhaust

(street i was testing on only lets me get up to 2nd gear)

info on the car:

4.8l
t56
edelbrock vic jr intake with low pro elbow
FAST 90mm tb
60lb injectors
NGK TR8's
2 bar map
t76 turbo 8lbs of boost
no o2's only AEM wideband.

ecu is a stock 2001 4.8l

any help is greatly appreciated and thanx in advance

attached a copy of current tune and a little log i did



Attached Files
File Type: hpl
OL fuel test 2.hpl (79.6 KB, 230 views)
File Type: hpt
open loop fuel test.hpt (467.8 KB, 70 views)
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Old Jun 10, 2012 | 06:33 PM
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Base spark (hi/low octane)-burst knock+IAT spark+ECT spark.
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Old Jun 10, 2012 | 07:12 PM
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sorry should have said im new to tuning.

what should i do in those tables?
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Old Jun 10, 2012 | 07:23 PM
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Zero out the burst knock, and tweak the IAT and ECT tables until you get the desired results.
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Old Jun 10, 2012 | 09:12 PM
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ah ok thank you.
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