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EPP Blower Cam tuning help

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Old 09-13-2013, 11:59 PM
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Default EPP Blower Cam tuning help

This is what Iv got on the car!
NA LS1 with 317 heads, EPP Blower Cam, LT Headers, LS6 intake, EGR and Cat delete, Ported Throttle Body, and SLP lid(also stock stall )... May be some small odds and ends but those are the main ones!

So I have been trying to get this thing tuned on my own. I under stand some basics(Im Still new to this)... I installed everything on the car and tuned it to run in park and drive. I also dyno tuned it for WOT making 353 whp on a dynojet.

I feel that is very low! So I was wondering if anyone had any suggestions or could help me out? Sometimes get a misfire when cold and the "cruise control" problem!
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Old 09-14-2013, 07:42 AM
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Is it really missing? the low rev mode misfire tables are zeroed out, repopulate that table with 32767. Smallish cam can require some misfire table tweaks larger numbers
desensitize it. Lower your throttle cracker airflow at speed they are a problem.
Although the stock converter is likely the problem at low speeds with an 800 rpm
idle speed.
353 does sound low what was the AFR on the dyno? How big is this cam?
you are probably just above 9:1 compression
Old 09-14-2013, 12:31 PM
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Originally Posted by sreve
Is it really missing? the low rev mode misfire tables are zeroed out, repopulate that table with 32767. Smallish cam can require some misfire table tweaks larger numbers
desensitize it. Lower your throttle cracker airflow at speed they are a problem.
Although the stock converter is likely the problem at low speeds with an 800 rpm
idle speed.
353 does sound low what was the AFR on the dyno? How big is this cam?
you are probably just above 9:1 compression
The car is counting misfires then throws a check engine light and engine light flashes.... It doesnt feel like it is missing but it thinks it is!

ill adjust the throttle cracker airflow and see how that works. it will Cruise control even around 45mph or it will accelerate on its own up to 45 at times...(how much should i lower throttle cracker?

the Dyno sniffer we had was a POS. it said we were right around 13-14:1 but im running pretty rich still..
Cam specs are: Dur @ .050 232/240 .595/.608lift Lobe Sep 115.0

Thanks for the help!
Old 09-15-2013, 01:02 PM
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I made the adjustments on the throttle cracker and misfire table but havent had the chance to see if my misfire problem was fixed... car still has its "cruise control" problem... been tinkering with it abit and seems like nothing is changing to fix it lol...
Old 09-15-2013, 04:16 PM
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Thats very low. I have a 6.0, 317's, ls6 intake, 80mm tb, 85mm lid, 1 7/8 headers, true duals, and an epp blower cam and I made 405 on a mustang dyno through a 6sp and 9"
Old 09-16-2013, 06:22 PM
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Misfire will not be fixed all those tables need overhauled for that cam.
353rwh with 6200 rpm stock rev limit, that cam needs more than that.
scale down RAF X .9
The combo of parts you have makes me think a stock Z28 would run circles
around it.
Old 09-16-2013, 11:20 PM
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Originally Posted by sreve
Misfire will not be fixed all those tables need overhauled for that cam.
353rwh with 6200 rpm stock rev limit, that cam needs more than that.
scale down RAF X .9
The combo of parts you have makes me think a stock Z28 would run circles
around it.
I adjusted my tune but have not loaded it yet... will soon.
they car is faster but not like i hoped to be. obviously i cant get off the line at all... other than that it isnt bad but my tune must be so far off its ridiculous...

Thanks for your help!
Old 09-17-2013, 09:54 PM
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I scaled down the RAF didnt seem to help should i keep scaling it down?
Old 09-17-2013, 10:51 PM
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If the check engine is flashing you most likely have a vacuum leak causing a real misfire.
Old 09-18-2013, 11:49 AM
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Originally Posted by LSX Power Tuning
If the check engine is flashing you most likely have a vacuum leak causing a real misfire.
Ill check for leaks again but the only time it ends up flashing is on cold starts at idle...



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