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4th June 2016
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Biker
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Join Date: Apr 2009
Posts: 61 Sportster/Buell Model: XL883/1200 Sportster/Buell Year: 2000
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My 2000 883/1200 dyno run today
Three years ago I went to a HP shootout at Koups Kawasaki with the sporty. I messed up and had the rev limiter set to 5k. It made 80hp before bouncing off the rev limiter. With a SS shorty E carb.
The specs are 1200 kit, 257degree 497 lift cams, ported stock 883 heads and bigger valves, and RBracing 2-1 exhaust.
Today I went back. It was a Baro of 30.04 and 75% humidity. I had 82hp and 73 ftlbs of torque with same above setup with the exception of going back to the 40mm carb. It was also blowing a 12.0:1 AF above 5000rpm.
Everyone ignored it rolling up to the dyno until they all heard it warming up and reving out so quick. It's a fun ride. From this run I'm going to richen up the needle 1 washer and go down 1 on the main jet.
Last edited by Folkie; 24th December 2016 at 00:58..
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21st December 2016
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Biker
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Join Date: Apr 2009
Posts: 61 Sportster/Buell Model: XL883/1200 Sportster/Buell Year: 2000
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My 2000 883/1200 dyno run today
This is the plug I put in in the beginning of spring. This is the rear plug from the hotter cylinder. The front colder cylinder is slightly darker.
The plug is a DCPR8EKC. It's 1 heat range colder than stock.
I like the fact it's a unshrouded spark. Adding them increased my idle 200rpm. Backed it back down to 800-900 afterwards. Feels like more off idle torque and crisper throttle response.
Both pictures are same plug
Last edited by Folkie; 24th December 2016 at 00:59..
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21st December 2016
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XL FORUM TEAM MEMBER
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Join Date: Jan 2008
Location: So Cal
Posts: 21,749 Sportster/Buell Model: XL1200C Sportster/Buell Year: 2006 Sportster/Buell Model #2: XL1200C Sportster/Buell Year #2: 2006 Other Motorcycle Model: 48 "Totalled" By a Douche Other Motorcycle Year: 2012
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Why the dual electrodes ?
__________________
Thy Sportster Come
It Shall Be Done
On Earth as it is on Salt
2006 Sportster XL1250C
Hammer Sledge Heads 1.98X1.61 Valves
Hammer 600 Cams
Big Ass CP/Hammer Pistons
Mikuni HSR 45 /Hammer Billet Manifold (Now HSR 48)
Jetted 27.5 slow,182.5 Main
97 Needle,Clip posistion 3
Hurricane Flow 3" offset AC,Rocketman Mod
Daytona Twin Tec TC88A,Rico Scarecrow Map
Sumax Thundervolt plug wires,NGK DCPR8EIX spark plugs. Gapped .040 and Indexed
Cycle Electric Stator and Regulator
Alto Carbonite Clutch (now with Barnett Pressure plate and 25% stiffer spring)
Royal Purple 20W50 MC Primary oil
Patriot Defender Pipe
Royal Purple 20W50 MC Engine Oil
Napa 7148 oil filter
Max Power, 111.47
Max Torque, 84.39
Best 1/4 Mile ET to date 11.85
Best 1/4 Speed to date 115.14
Build by Jester Motorwerkz West
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21st December 2016
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Biker
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Join Date: Apr 2009
Posts: 61 Sportster/Buell Model: XL883/1200 Sportster/Buell Year: 2000
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Quote:
Originally Posted by rocketmangb
Why the dual electrodes ?
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To me it's a unshrouded spark. Meaning the spark kernel is not hidden by the ground arm. And with two places to spark it will spark where the least resistance/ highest concentration of fuel mixture is. (More complete combustion bla, bla, bla....)
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21st December 2016
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XL FORUM TEAM MEMBER
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Join Date: Jan 2008
Location: So Cal
Posts: 21,749 Sportster/Buell Model: XL1200C Sportster/Buell Year: 2006 Sportster/Buell Model #2: XL1200C Sportster/Buell Year #2: 2006 Other Motorcycle Model: 48 "Totalled" By a Douche Other Motorcycle Year: 2012
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Thats a pretty long reach plug !
My motor would probably pound those shut instantly or break the center electrode
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21st December 2016
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Biker
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Join Date: Apr 2009
Posts: 61 Sportster/Buell Model: XL883/1200 Sportster/Buell Year: 2000
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My 2000 883/1200 dyno run today
Quote:
Originally Posted by rocketmangb
Thats a pretty long reach plug !
My motor would probably pound those shut instantly or break the center electrode
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They were no longer than the Autolite plugs I pulled out. More exposure to mixture.....
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21st December 2016
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XL FORUM TEAM MEMBER
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Join Date: Jan 2008
Location: So Cal
Posts: 21,749 Sportster/Buell Model: XL1200C Sportster/Buell Year: 2006 Sportster/Buell Model #2: XL1200C Sportster/Buell Year #2: 2006 Other Motorcycle Model: 48 "Totalled" By a Douche Other Motorcycle Year: 2012
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I'll pick up a pr and have a look !
However your logic is flawed !
It's easier to light a lean mixture.
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21st December 2016
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Biker
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Join Date: Apr 2009
Posts: 61 Sportster/Buell Model: XL883/1200 Sportster/Buell Year: 2000
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It still light any mixture faster or more completely. But I agree with the leaner mixture. I put a set of BKR6EKB-11's in my 02 Saturn SL1 a while ago and liked the extra grunt. Didn't notice using the AC as much as before. And others on the SaturnFans forum that tried it mentioned it also.
I wish they were available in a heat range 7. But I'm running 2 colder in my Saturn with no issues and much less active knock retard. (I can monitor it with my ScanGauge)
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21st December 2016
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Biker
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Join Date: Apr 2009
Posts: 61 Sportster/Buell Model: XL883/1200 Sportster/Buell Year: 2000
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Also I'm pretty sure I put them side by side with the correct NGK plug and length was identical. Compare them at the shop.
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21st December 2016
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XL FORUM TEAM MEMBER
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Join Date: Jan 2008
Location: So Cal
Posts: 21,749 Sportster/Buell Model: XL1200C Sportster/Buell Year: 2006 Sportster/Buell Model #2: XL1200C Sportster/Buell Year #2: 2006 Other Motorcycle Model: 48 "Totalled" By a Douche Other Motorcycle Year: 2012
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Even the DCPR8E plugs have to be indexed in my 1250 or the pistons will close em up.
These MIGHT work if I index them.
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