Topic: DIY Egli Sohc 4

[mec]

hei mec

will 95% be in imola, so looking fwd.

Cheers

TG

fine, see you in imola.

had been on the dyno again. my stroker engine runs fine and seems to be healthy still. dyno shows 114rwhp (2 ponies less than the first runs) and 113Nm (4Nm more compared to the first runs). the engine is running on 95 to 98 octane gas.

mec

[Duanob]

Nice project! You're not related to Burt Munro are you

[mec]

Nice project! You're not related to Burt Munro are you

unfortunately not, but would like to be


update race at Rijeka sept. 2010:
we had bad luck, but in the end everything went fine.
a friend of mine rode my egli and our guzzi. cause of oil at the track he crashed the sohc-egli during first practice. but i managed to repair the bike and we finished 9th in the short track race. the bike performed more than well, power output ok, handling could not have been better. our GPS lap timer showed a max of 224km/h, best laptime 1.47.50sec.
damage to the bike: fairing, painting of the seat, footrest, gear pedal, left handlebar. now the bike is as new again

our guzzi performed not as good. we had some handling problems in fast turns, 4th gear under accelerating, track uneven. reducing throttle, acceleration helped and the bike went fine. but under full acceleration the wobble began.
we didn´t have such problems in Spa, Oschersleben nor Imola. But Slovakiaring it started that bad behaviour and it was worst in Rijeka.
nevertheless we started the 2hours race. we had been 4th, 20min before end of the race one rider crashed again. again damage was minor and the bike has been repaired on the track.

next tuesday we are planing to do our last test riding (panonniaring) this year. we will do some test runs with öhlins rear shocks to sort out our handling issues. curious if this will help, otherwise there will be some work in the winter season.


i have found 3 nice youtube vids (the third one is link only) from the event in rijeka:

http://www.youtube.com/user/oldtimersignale


some impressions from the race weekend.

mec

[Retro Rocket]

Thanks for the video and pics Mec....

Mick

[Syscrush]

Just found this now.

WOW.

This certainly has not decreased my desire for a cool bike with a one-off frame!

[754]

 Here you go TEWS19...

[Tews19]

Took a little bit but read the entire thread. i think all the adrenaline has spiked and now coming down off my high after reading this. What skill Mec has. More then double the Hp to rear wheel and the engineering of the frame. Im exhausted from all the great work put into this. Now time to take a nap>Great work Mec. i will have to look for your other threads more closely now.

[Syscrush]

i will have to look for your other threads more closely now.

Have you seen the MotoGP dry clutch conversion thread?  Holy sh!t it's awesome.

[Tews19]

Come on now! Really? Link please.  Is mec a world renown builder? Sorry for my ignorance.  Still a newbie in awe of his work

[HonderCB]

wow, this thread is unreal

[Retro Rocket]

Come on now! Really? Link please.  Is mec a world renown builder? Sorry for my ignorance.  Still a newbie in awe of his work

No, he is just an enthusiast like the rest of us, except extremely talented...

[Tews19]

And his toys, I mean tools are an upgrade

[lucky]

So the rake of your steering head is 23º not 67º. You have to subtract 67 from 90º.
Great project. the new Suzuki's are 24º that is why they all need steering dampers.

An you tell us anything about the jet sizes?

[Spikeybike]

 

[Retro Rocket]

So the rake of your steering head is 23º not 67º. You have to subtract 67 from 90º.
Great project. the new Suzuki's are 24º that is why they all need steering dampers.

An you tell us anything about the jet sizes?

34mm Mikuni's lucky, and 1100cc's, nothing that would work with stock gear.....

[mec]

So the rake of your steering head is 23º not 67º. You have to subtract 67 from 90º.
Great project. the new Suzuki's are 24º that is why they all need steering dampers.

An you tell us anything about the jet sizes?

hi lucky,
reading all the numbers the manufacturers provide, you can see their frames are in the 62° to 68° or 28° to 22° range. egli made frames with 62.5° rake. in the 70-80ies this was the number to go for. it seems that the bike manufacturers are undecided which number to use. but i am with you.

jet sizes for my 34: slow jets 25. main jets all reamed by hand and in the 135er range. after 30 years of experience of doing so, the lambda numbers during the dynoruns showed only to make minor corrections to the main jets.

mec

[mec]

hi,

I added another feature:
at the first glance this 42 rear wheel sprocket looks as usual. but there is a special goodie built in it. my cnc made it possible to make it out of two separate parts which will fit perfectly together.
the benefit of it: changing the transmission ratio it is not mandatory to remove the rear wheel.

i have seen this modification at a picture shown a norton vintage racer. from what i have heard, such "two pieces" sprockets are a common item on quads too.

we will see, how it will perform on race track.

mec

[lucky]

So the rake of your steering head is 23º not 67º. You have to subtract 67 from 90º.
Great project. the new Suzuki's are 24º that is why they all need steering dampers.

An you tell us anything about the jet sizes?

Thanks Retro Rocket.

34mm Mikuni's lucky, and 1100cc's, nothing that would work with stock gear.....

[Syscrush]

at the first glance this 42 rear wheel sprocket looks as usual. but there is a special goodie built in it. my cnc made it possible to make it out of two separate parts which will fit perfectly together.

You're such a nut.

I love it!

[tweakin]

Awesome work!

[jaguar]

Really cool stuff

[mec]

I sent a picture of my sprocket to a friend of mine. he is ducati dealer.
look, what he sent back:
http://www.desmoworld.com/shop/de/performance-kettenrad-s2r1000-s4r-mts-hym-848.html

I didnt know, that ducati (or someone else) is offering such sprockets, WOW. they seem to be a little more sophisticated than mine (inner toothing).

mec

[Jan W]

My EGLI Honda 736cc

[mec]

beautiful bike

engine 836?

mec

[sander]

I have seen it before on brakediscs (on trains not bikes), never on a chainwheel. But why not? Beautiful craftsmanship!