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Jul 11, 2009, 04:34 AM
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#31
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Evolving Member
Personal Sales Rating: ( 1)
Join Date: Dec 2008
Location: Ohio
Posts: 203
Drives: 2008 Evo X
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I've gone ahead and tweaked what I viewed as logical things on my tune, including following the original post here (though the tuner had done 95% of it beforehand).
Anyone willing to take a gander at a few maps for me, and see where/what I'm missing? Still having a lot of grinding when I start it, especially when it's warm. I can give details of everything in a PM or somesuch.
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Aug 1, 2009, 09:31 AM
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#32
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Newbie
Personal Sales Rating: ( 0)
Join Date: Jul 2009
Location: elizabeth city,NC
Posts: 29
Drives: 03 evo8.
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Quote:
Originally Posted by BBrooks
Yes, I use the rpm vs start tables all the time. Opening the idle valve(similar to pushing the throttle slightly) helps start up time. Using the Crank initial pulse table will also solve a lot of the cold start issues i see people post about.
What I was referring to is the amount of time the AEM ECU takes to sync the 8tooth count(2 physical teeth counting each edge, twice per cycle) and turning ON the parameter "Stat Sync". No amount of ECU tuning will make this a faster process. What you'll notice if you monitor the Stat Sync Parameter during cranking is the ecu takes about 3 seconds of cranking time before the Stat Sync will turn to ON, giving the slow AEM EVO start. (The lower the battery voltage the more noticable this is) By increasing the tooth count to 24 (12tooth wheel) which the GEMS/AEM15 ecus are designed around, this delay isn't there.
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Buschur Racing has a 12 tooth for $109.00 plus shipping.
https://secure.buschurracing.com/cat...f7d73b1e060f04
Triggerdisc's 12 tooth is $100.00 plus shipping.
http://www.triggerdisc.com/evo12.htm
One thing to keep in mind is that with either of these the balance shaft MUST be removed as these aftermarket ones are flat and "does not provide the balance shaft belt with aligning support like the factory disc does".
Last edited by coastevo; Aug 1, 2009 at 09:37 AM.
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Oct 1, 2009, 07:11 PM
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#33
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Newbie
Personal Sales Rating: ( 0)
Join Date: Nov 2003
Location: Puerto Rico
Posts: 51
Drives: evo8 2003 gt30420hp, civic b20turbo 300hp, ford 150lighting 359hp
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if you removed the balance shaft, the engine still ok without it....? or it should be good to balance the engine without the balance shaft ??
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Oct 29, 2009, 07:38 PM
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#34
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Newbie
Personal Sales Rating: ( 0)
Join Date: Jul 2009
Location: elizabeth city,NC
Posts: 29
Drives: 03 evo8.
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I haven't doen it but I've heard youll have more cabin vibration and an all aroudn more "roudy" ride... someone who knows what theyr'e talking about chime in please..
__________________
"America is all about speed, nasty badass speed"
-Elenor Roosevelt
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Tags
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12, aem, cold, crank, ems, evo, initial, install, map, start, starting, sync, teeth, tooth, trigger, wont  |
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