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powerhousr
Joined: 28 Aug 2007
Posts: 13
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 Posted: Thu Aug 30, 2007 4:23 pm Post subject: |
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| Thanks again Brian. I actually ordered them from you this morning. |
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BMEP EFI
Joined: 18 Nov 2004
Posts: 510
Location: Austin, TX
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| Posted: Thu Aug 30, 2007 8:37 pm Post subject: |
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Yes I know, but others have inquired about these lately also. 
BK
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BK |
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powerhousr
Joined: 28 Aug 2007
Posts: 13
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| Posted: Sat Sep 01, 2007 4:53 am Post subject: |
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| BMEP EFI wrote: | Yes I know, but others have inquired about these lately also.
BK |
oh ok cool.
coils will be wired up today. I will keep you posted. |
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powerhousr
Joined: 28 Aug 2007
Posts: 13
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| Posted: Sun Sep 02, 2007 5:16 pm Post subject: |
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so far so good, got them all wired up and car fired up first shot. took it for a spin on 17 psi and so far no break-up. 
ill take some pictures of how i mounted them later on. I might move them under the dash to keep them away from underhood heat. but besides that, they are working flawlessly. Cant wait to go post it over in the aem boards. |
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powerhousr
Joined: 28 Aug 2007
Posts: 13
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| Posted: Mon Sep 03, 2007 7:12 pm Post subject: |
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gunna move them under the dash to keep them away from heat and also need to find me a nice high current relay to power the coils.
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Gadgeroonie
Joined: 24 Aug 2004
Posts: 1723
Location: UK
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| Posted: Tue Sep 04, 2007 7:09 am Post subject: |
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looking good
do the coils have to be mounted on that frame ?
did Brian supply the ht leads also ?
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Dyno Developments
2WD and 4WD Chassis Dynamometers
www.DynoDevelopments.co.uk |
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BMEP EFI
Joined: 18 Nov 2004
Posts: 510
Location: Austin, TX
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| Posted: Tue Sep 04, 2007 7:26 am Post subject: |
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Because the coils themselves have ground connections for both the secondary voltage (ground to the cylinder head) and for the primary circuit (ground to the battery) it doesn't matter how/where you mount the coils so long as they are mechanically sound and have ample air moving across them for cooling. I would try to keep the coils as close to the cylinder head as possible to avoid induced cross-fire between the cylinders as well as reducing the possibility of ECU/trigger errors due to EMI and RFI caused by the ignition system. I don't see a problem with where the coils are mounted in the pictures. As long as there's an ample amount of air moving around back there to keep the coils cool, they'll work well for a LONG time.
BK
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BK |
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niterydr
Joined: 06 Feb 2006
Posts: 58
Location: Savage, MN
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| Posted: Wed Sep 05, 2007 3:19 pm Post subject: |
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| powerhousr wrote: | | ohh and one more thing. the timing drift is a linear thing. it doesnt bounce around, it increases linearly with rpm |
Adjust your pickup-delay comp.
Setting the aem "base timing" only locks out idle. I usually lockout timing, and set it at base (advance/retard).
Then as we rev the motor I adjust the pickup-delay/comp value (I believe it is a 0-255, most individual sensors use under 50 for a number, most distributor/cas sensors are 110+) until the ignition timing doesn't rise with rpm.
this is of course assuming you just have it at a flat rpm. I usually pick something mild like 15 or 20 degrees to set across the rpm band. You want enough timing to let it burn during low load without causing a mis-fire condition, yet not have it so high you could somehow be knocking under minimal load. Most 4 cylinder applications idle and rev in the 15-20 degree range.
Good luck.
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-Josh
EFI Certified Tuner
ASE Certified
"AEM Factory Trained" |
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