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Discussion Starter · #1 ·
Has anyone tried alternate cam timing on their 1050 engine?

I have recently purchased a set of Falicon adjustable cam gears and am planning on trying a few alterations to the stock settings.
 
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Discussion Starter · #3 ·
I have a couple of software packages I use regularly - Dynomation works well. The problem is I do not have flow numbers for the stock head with intake/throttle body - YET. So I am using flow numbers from the 955i heads, which should be close.

The results show keeping the stock positioning for the exhaust cam, and advancing the intake cam 4 degrees. I will confirm this on the dyno soon.

I plan on spending a lot of time on the dyno working on cam timing and venturi length and volume.
 
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Discussion Starter · #6 ·
I have been playing with cam timing on my 2005 S3. What normally works for many bikes - retarding the intake cam - gives a little boost above 9000 rpm. This is good for dyno numbers, but not for riding.

Advancing the intake cam gives a nice little boost to the low and mid range - right where we spend most of our time.

The latest engine modeling results seem to indicate that widening the lobe centers 10 degrees (advancing the intake cam 5 degrees, and retarding the exhaust cam 5 degrees) will give a nice boost to the entire powerband up to 8500 rpm, but hurt 9000+. I am going to try this for the next dyno session and report back.

I may be able to play with intake length (adjusting the velocity stack length) to get the best of both worlds.
 
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