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Hi rpm spark retard #383521 07/22/09 08:37 PM 07/22/09 08:37 PM
Joined: Jan 2007 Posts: 3,695 nc E emarine01 OP master
emarine01 OP master E Joined: Jan 2007 Posts: 3,695 nc	Why and how does it make more power?

Post deleted by Defbob [Re: emarine01] #383522 07/22/09 08:44 PM 07/22/09 08:44 PM
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Re: Hi rpm spark retard #383523 07/22/09 09:01 PM 07/22/09 09:01 PM
Joined: Jan 2007 Posts: 3,695 nc E emarine01 OP master
emarine01 OP master E Joined: Jan 2007 Posts: 3,695 nc	Is this something worth looking deeper into on a 12 to 1 small block with 34* total advance that only turns in the low 7k range?

Post deleted by Defbob [Re: emarine01] #383524 07/22/09 09:05 PM 07/22/09 09:05 PM
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Re: Hi rpm spark retard #383525 07/22/09 09:39 PM 07/22/09 09:39 PM
Joined: Dec 2007 Posts: 12,587 Great Neck,LI,new york hemi-itis I Live Here
hemi-itis I Live Here Joined: Dec 2007 Posts: 12,587 Great Neck,LI,new york	I have asked this question here and YB without any real solid replies.The Holley pro strip ignition system in my junk allows me to change the timing every 500 RPM.There are parameters of retard for nitrous oxide and boost.Someone should do some research on the dyno with more advance in the lower RPM range ramping down to 7500 to 8500 RPM. HEMI-ITIS has no cure. My condition is fully BLOWN!!

Re: Hi rpm spark retard [Re: hemi-itis] #383526 07/22/09 09:52 PM 07/22/09 09:52 PM
Joined: Jan 2007 Posts: 3,695 nc E emarine01 OP master
emarine01 OP master E Joined: Jan 2007 Posts: 3,695 nc	Must be a tuff question cause its very head specific , For my stuff W5s there are not too many shops that mess with them, looks like more trial and error testing

Re: Hi rpm spark retard [Re: emarine01] #383527 07/23/09 09:48 AM 07/23/09 09:48 AM
Joined: Oct 2004 Posts: 8,165 Left Coast B BobR master
BobR master B Joined: Oct 2004 Posts: 8,165 Left Coast	Quote: Is this something worth looking deeper into on a 12 to 1 small block with 34* total advance that only turns in the low 7k range? NO.

Re: Hi rpm spark retard [Re: emarine01] #383528 07/23/09 10:00 AM 07/23/09 10:00 AM
Joined: Jun 2003 Posts: 52,972 Romeo MI MR_P_BODY Master
MR_P_BODY Master Joined: Jun 2003 Posts: 52,972 Romeo MI	Quote: Must be a tuff question cause its very head specific , For my stuff W5s there are not too many shops that mess with them, looks like more trial and error testing I was going to try it but never got around to it, I was going to put a micro switch on my shifter so it would activate in high gear only then go to a rpm chip to engage it at that rpm to a retard box, but never got to it yet.... I only have a 7 AL-2 box unlike the fancy digital boxes

Re: Hi rpm spark retard [Re: MR_P_BODY] #383529 07/23/09 10:07 AM 07/23/09 10:07 AM
Joined: Jan 2003 Posts: 4,573 ...gently down the stream LAR_414 master
LAR_414 master Joined: Jan 2003 Posts: 4,573 ...gently down the stream	I've played with it on my 11.2 to one 34 degree 4" stroke smallblock.....never found any conclusive results. I've taken out from 4 to 10 degrees once I hit high gear, via my Digital 6 plus MSD box. No real difference in ET or MPH using the switch. I've even tried launching at like 38 degrees and taking out 4 degrees to get back to my normal 34 degrees total.....no difference on the time slip.

Re: Hi rpm spark retard [Re: LAR_414] #383530 07/23/09 01:51 PM 07/23/09 01:51 PM
Joined: Jan 2007 Posts: 3,695 nc E emarine01 OP master
emarine01 OP master E Joined: Jan 2007 Posts: 3,695 nc	Thankx guys, ya saved me some time and money

Re: Hi rpm spark retard [Re: emarine01] #383531 07/23/09 02:38 PM 07/23/09 02:38 PM
Joined: Nov 2004 Posts: 2,825 Sk. Canada RemCharger master
RemCharger master Joined: Nov 2004 Posts: 2,825 Sk. Canada	The biggest gain would likely be from a long piston dwell engine..

Re: Hi rpm spark retard [Re: emarine01] #383532 07/27/09 09:51 PM 07/27/09 09:51 PM
Joined: Feb 2004 Posts: 1,417 Chicago, IL blownEFI pro stock
blownEFI pro stock Joined: Feb 2004 Posts: 1,417 Chicago, IL	Everyone knows you never go full retard "These go to eleven", Nigel Tufnel

Re: Hi rpm spark retard [Re: emarine01] #383533 07/29/09 11:35 AM 07/29/09 11:35 AM
Joined: Oct 2007 Posts: 4,206 New York polyspheric master
polyspheric master Joined: Oct 2007 Posts: 4,206 New York	It doesn't make more power. The spark setting in high remains what it should be - but it allows more advance in the lower gears which may improve your 60. Boffin Emeritus

Re: Hi rpm spark retard [Re: blownEFI] #383534 07/29/09 11:54 AM 07/29/09 11:54 AM
Joined: Sep 2006 Posts: 408 Nelsonville , Ohio D Duster3105 mopar
Duster3105 mopar D Joined: Sep 2006 Posts: 408 Nelsonville , Ohio	Quote: Everyone knows you never go full retard ROFLMAO!!!!

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