JDively910 Posted July 15, 2014 Report Posted July 15, 2014 I have a full k&t 421 cub drag banshee ... k&t shearer pipes straight cuts billet basket over ride 39mm keihin on race gas cool head and stock ignition.. looking to see what is the best setting is... had a pvl on at 100degrees ran a. 6.2 to 6.3 at97to 98mph. Put stock igniton on at 8 and ran 6.2to 6.3 at low 92 to mid 95... Quote
JDively910 Posted July 16, 2014 Author Report Posted July 16, 2014 I took pvl off because of the bogg off the line and put the stock igniton on to get the torque off the line and I seemed to loose mph pretty bad I was wonder what I should set it on for the stock ign not pvl.... I was told up to 10 and 12... but 12 seems crazy..I didn't no what the ratio was from stock to pvl.. .and I apologize if you answered it. Quote
CottonBranchRacing Posted July 16, 2014 Report Posted July 16, 2014 You took the good ignition off. If you back off your static pressure, you'll get past that bog. 100 is a lot, 80 is safer and it'll give it a little more leg. CottonBranchRacing Quote
J-Madd Posted July 16, 2014 Report Posted July 16, 2014 Hard to compare PVL to oem timing. Very little retard in the PVL. Quote
CottonBranchRacing Posted July 16, 2014 Report Posted July 16, 2014 It's about a 16degree swing from max timing. Starts at 0, goes to plus 8, then drops to minus 8. An OEM cdi curve isn't far from that, goes from like ..plus 8 to plus 20ish and back. And they aren't all exactly the same. Varies from box to box. You'll need a dial and degree wheel to compare the two CottonBranchRacing Quote
camatv Posted July 23, 2014 Report Posted July 23, 2014 peg the stocker. rotate it as far as it will go. back off one degree and watch your tune. compare times.. do some real tuning to both and see what works best. Quote
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