supra5677
Pro
Posts: 1279
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posted May 16, 2006 12:33 PM
Opinions of 105/103 Cam timing
Just got back from a 600 mile trip from San Francisco to Las Vegas Nevada. While my bike was down I put on a thin cometic head gasket, 105/103 adustable cam gears, and a bmc race filter. I am currently running an akrapovic full system, bonneville box, and extended rev limiter. and 4 degees of ignition advance
First of all the cam timing is incredible! The bike pulls hard from 4500rpm's all the way to the rev limiter. I haven't noticed any loss in power on the low end. I can still wheelie just as easily in 1st and 2nd gear. It feels as though the increased compression gave me back what I would have lost and then some..
I want to thank Y2K for helping me with the changes I made.. I haven't dynoed yet but Im expecting 190 plus on the dyno 
p.s saw a zx14 in Las Vegas but he was going the opposite direction.. looking forward to a roll on with one, hopefully I go up against a good rider..
supra
   
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Y2KZX12R
Needs a job
CompetitionCNC.com
Posts: 3762
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posted May 16, 2006 04:41 PM
Not a problem. I enjoy helping people out with thier bikes and discussing the technical stuff.... Love a good technical debate.
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mlb
Novice Class
Posts: 48
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posted May 16, 2006 07:45 PM
Supra, are you stretched or slammed, if not I had a hard time NOT wheelieing in 1'st and 2'nd on a stock bike so I'm not sure that's a good indication.
What are you doing to get the extended rev limiter?
Y2k, I've also been following your build tread and agree it seems to have a wealth of knowledge in there.
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supra5677
Pro
Posts: 1279
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posted May 16, 2006 08:09 PM
my bike is lowered to the middle setting on the muzzy lowering link.. and a half an inch in the front.. Its pretty low...
the extende rev limit mod was done by Superbike Mike.. ( way to expensive) going to do it via the ecu later this year...
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mlb
Novice Class
Posts: 48
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posted May 16, 2006 08:24 PM
Oh that's the mod where they "screw up" the ecu's timing to fool it into thinking it's running a different / lower RPM than it actually is right? What are your impressions on that mod and if you like it are there others that can do it at a more reasonable price and that have a better reputatoin than superbike mike?
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Y2KZX12R
Needs a job
CompetitionCNC.com
Posts: 3762
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posted May 17, 2006 03:42 AM
MLB, if it ever stops raining here i'll get the little basterd on the dyno and get it mapped nice and finish this project.
The first few weeks i had it on the road i was breaking it in. I wanted to get a few hundred miles on it before a long dyno session. Then the monsoon started 3 weeks ago. Looks like this weekend is going to be a washout agin also. 
____________
Y2KZX12R
CompetitionCNC.com
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supra5677
Pro
Posts: 1279
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posted May 17, 2006 05:55 AM
Mlb you are correct.. The injector pulse is shortened by 5 %. The rpm timing is increased to 105% and the ignition timing is pushed to 102&.. It is NOT a reprogramming mod.. However this ecu mod DOES perform better than the stock ecu. However I believe that it can run even better if I Can interface with it directly..
supra
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