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-   -   Serious Twistees engine scrapeing (http://forums.pelicanparts.com/bmw-r1100s-r1200s-tech-forum/686507-serious-twistees-engine-scrapeing.html)

Psychopath 07-01-2012 01:23 PM

I assume he has a short tq arm or taller rear spring.

My stock 04' R11S drags peg feelers before the cylinder head. (on the track)



If you're pushing that hard on the street......tsk tsk.

RIQUE 07-01-2012 02:44 PM

Quote:

Originally Posted by Psychopath (Post 6833726)
I assume he has a short tq arm or taller rear spring.

My stock 04' R11S drags peg feelers before the cylinder head. (on the track)



If you're pushing that hard on the street......tsk tsk.

No No No, not on the street. This is a country road far away from any city street
with very few cars on route.

bikerfish1100 07-02-2012 08:59 AM

Rique- "on the street" means on public roads, aka "anything that is not a dedicated track". also known as "a track with absolutely no safe runoff areas, possibly with light poles, trees, guard rails, animals, big drops off the side of the road thru rocks while you play pinball, etc"
really not the place to be playing Rique Racer.

twodear 07-02-2012 01:43 PM

+1 per BF1100's advice - potential for oncoming traffic wandering off line or doing U-turns, rocks/dirt/sand/oil - makes me shudder to think of all the little things that can make it end badly.

wswartzwel 07-02-2012 01:57 PM

Quote:

Originally Posted by bikerfish1100 (Post 6835074)
Rique- "on the street" means on public roads, aka "anything that is not a dedicated track". also known as "a track with absolutely no safe runoff areas, possibly with light poles, trees, guard rails, animals, big drops off the side of the road thru rocks while you play pinball, etc"
really not the place to be playing Rique Racer.

practice what you preach ! SmileWavy There is a group of Harley riders still looking for you. ;)


We all play to some extent, some just a little more than others.

bikerfish1100 07-02-2012 03:57 PM

Quote:

Originally Posted by wswartzwel (Post 6835634)
practice what you preach ! SmileWavy There is a group of Harley riders still looking for you. ;)


We all play to some extent, some just a little more than others.

you only got the 2nd hand story. ask Dee or RB- they'll tell you I was extremely polite in my exuberience.

poldar12s 07-03-2012 12:18 PM

I'm glad you made it. Leaned further than this pic on the road makes me feel so scary....

http://forums.pelicanparts.com/uploa...1341346725.jpg

twodear 07-03-2012 01:47 PM

Great action shot Poldar - I am assuming that is you?

Race regulations here require guards for crank cases (or on the valve cover in my case). I made some from heavy gauge sheet metal and found that, while robust, don't slide well and act like a bit of an anchor.

I'm trying to think up something to act like a curb feeler - a knee puck with a bit of give in the mount, to present some degree of warning that I'm close to touch down.

poldar12s 07-03-2012 02:21 PM

Quote:

Originally Posted by twodear (Post 6837577)
Great action shot Poldar - I am assuming that is you?

Race regulations here require guards for crank cases (or on the valve cover in my case). I made some from heavy gauge sheet metal and found that, while robust, don't slide well and act like a bit of an anchor.

I'm trying to think up something to act like a curb feeler - a knee puck with a bit of give in the mount, to present some degree of warning that I'm close to touch down.

Not me. Copy and paste one. Hmm, you make me plan my own action shot.

If the cover touches, don't you loose your tire friction?

sgoodwin 07-03-2012 02:35 PM

When they were running the boxercup series at Daytona every rider coming into turn 1 was dragging the left cylinder for the entire corner coming off the infield. It started slowly one then another by mid race they were all dragging hard in the corner without losing it. You could hear it in he stands as they blew by.

RBMann 07-03-2012 04:44 PM

Quote:

Originally Posted by wswartzwel (Post 6835634)
practice what you preach ! SmileWavy There is a group of Harley riders still looking for you. ;)


We all play to some extent, some just a little more than others.

It was just a couple out for a romantic ride. Although I think I would rather fight the dude and the girl??? Too much BC for me to mess with.

RIQUE 07-03-2012 06:21 PM

Quote:

Originally Posted by poldar12s (Post 6837629)
Not me. Copy and paste one. Hmm, you make me plan my own action shot.

If the cover touches, don't you loose your tire friction?

I did not and did not feel that was inminent however the scratch did make me pick the bike up a tad. Looking at my rear tire the lean was well over the edge. There was these little hairs beyond the elephants feet :D

My pals were like wow...dude...respect.

rjo 07-04-2012 01:49 AM

Quote:

Originally Posted by SergioK (Post 6833190)
I came down hard on my R1100S valve cover, going up hill through one of this road's most excellent turns. What you don't see is the steep incline at each apex which makes touching down just that much easier.

I think that the 'states is beckoning me for a biking holiday, when I see some of the roads you have over there.

leafman60 07-04-2012 02:10 AM

Corner surfing on the valve covers is a regular thing for our own Dr. Curve as I recall !

Guest24 07-04-2012 05:34 AM

Quote:

Originally Posted by leafman60 (Post 6838528)
Corner surfing on the valve covers is a regular thing for our own Dr. Curve as I recall !

Never seen Jim with knee pucks out street riding and don't recall seeing any valve cover grinding on two of his bikes. But, that don't mean it ain't so. PFFOG now, is a different story. He's not opposed to taking a few mm off the pegs. RIQUE, take the advice, move off the seat. Because grinding a valve cover means you're only a heartbeat away from an ugly lowside as the front wheel gets less weight on the contact patch.

signit98 07-04-2012 06:52 AM

Quote:

Originally Posted by poldar12s (Post 6837629)

If the cover touches, don't you loose your tire friction?

Depends on how hard you touch... if you just softly put them down (which you should, if at all) then there is no issue at all. If you go down a little harder and you lose the rear, it jumps and slides a bit...

If you lose the front, YOU slide as well...

RIQUE 07-04-2012 10:36 AM

Agree with Ralf, if you touch hard you are dangerously loosing control and traction. On the other hand when I gave it a touch I was opening the throttle on a turn and the bike although leaned extreamly was well planted and very slowly touched the Valve Guard.


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