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  #1  
Old 4th June 2016
xl2000883/1200 xl2000883/1200 is offline
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Default 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 01:58..
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  #2  
Old 21st December 2016
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Default 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 01:59..
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  #3  
Old 21st December 2016
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Why the dual electrodes ?
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Old 21st December 2016
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Quote:
Originally Posted by rocketmangb View Post
Why the dual electrodes ?


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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Thats a pretty long reach plug !
My motor would probably pound those shut instantly or break the center electrode
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Old 21st December 2016
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Default My 2000 883/1200 dyno run today

Quote:
Originally Posted by rocketmangb View Post
Thats a pretty long reach plug !
My motor would probably pound those shut instantly or break the center electrode


They were no longer than the Autolite plugs I pulled out. More exposure to mixture.....


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Old 21st December 2016
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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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Old 21st December 2016
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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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Old 21st December 2016
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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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Old 21st December 2016
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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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