HarleyTechTalk

thanks FSG!! I guess I'll pull the rocker covers off and see what I can see there. I was comparing the old stock cams and cam plate to the new ones and really surprised how much more wear I have on the new ones. rev limiter is set at 6k and I've hit it a couple times doing auto tunes but I haven't lugged and am careful to roll on the throttle no burnouts wheelies or other stuff I might have been encouraged to do 30 years ago . I think the crank runout (.005 ) not increasing supports this.  the cam plate and oil pump are screaming eagle S&S lifters and quickee pushrods. I'm not seeing anything bad in the oil pump and orings look good. I've battled  a heat problem since first built big bore 107" flat top pistons, cnc ported heads s&s ezstart .570cams. engine temp on the pv1b shows 259 at best on long steady cruises with any stoplight action rising to 270 or higher it's never rattled or shut down highest temp observed was 307. I added a jagg 10 row vertical cooler about 200 miles into breakin but it didn't affect engine temps that I could tell. I've run amsoil 20-50 and k&n filters. always 93 octane fuel (yeah that's getting expensive ) I've worked with Lucas at fuelmoto on the dynojet fuel map and tuning and I have target tune. he said in last email "log looked virtually perfect"  I really can't afford to just throw parts at it especially replacing parts that are still new.

Techson,
I have very limited experience relative to others on this forum and particularly this thread, but I can share that I have seen a similar scenario.... once.....after the engine had already seized.

Based on the pics you provided, you have some serious wear on at least one of your cams and the obvious (wobble) wear on the backside (inside) of your cam plate. I never got to hear the engine prior to failure so I can't expand on what the owner heard - he said nothing noticeable but he did complain of a long term vibration and had previously gone through new engine mounts, his OEM, then a Fueling and finally an S&S cam plate before the main event, he admitted. He also admitted the original cam plate bolts showed a lot of "use" from previous owner. He had new ones in place.
On a side note, I have had trouble installing Fueling and S&S Cam plates I assume likely due to their tight tolerences. Perhaps your cam plate was installed incorrectly - not judging/suggesting, which caused similar wobble marks for both of you. Dunnofershur.

I suspected crank runout caused cam bearing failure followed by destruction of the cam bearing and it's mounting port but again, I'm the least experienced here. Post inspection of the oil pan did reveal he had been riding it beyond safe margins, however.
 
You say your crank is measured at .005? Can you show (pic) us how you measured it? I use an old cam plate cut in half, bushing removed with a dial set in a drilled pilot hole. (tried to post a pic on this quick reply but no joy).

Bottom line? I expect you have more crank runout that you measure, for whatever my opinion is worth. Re-measure to be sure and listen to the others on your thread. They are much more experienced.

***Just found Coyote has a pic posted in Homemade Tools Section under heading "Crank Runout"***

What's your compression?  The higher compression, the better return with corn. 

I figure injector size for pump gas and figure about a third more for corn. 

There is really no special tuning requirements as for as ION. Still works and if target is set up correct.  Not much is real different on your AFR target and lambda target is straight forward. 

Pump corn is inconsistent of how much is actual corn compared to gasoline.  I like e90 from a barrel better. 

I know guys that have been running it for years.  Never a problem with other EFI components. 

When sourcing injectors.  A lot are on the market that will fit and spray fuel.  Most are corn rated.  But with different dead times and the need to use more fuel.  You can chase your tail with auto tune programs.  I really have had the best luck with and recommend sizing your injectors through Injector Dynamics. 

try this

You cannot see attachments on this board.

Try Windows Media Player Legacy. That's what I used to hear it.

     Consider this. https://blog.brocksperformance.com/faq/e85-fuel-in-my-motorcycle/   

Quote from: kd on Yesterday at 09:24:48 PMHa Ha!  I was looking for your old thread where you discussed that.

it's a tig tack ......  we're not building the Queen Mary or the Sydney Harbour Bridge   

Well I can't get the video to start but someone has say it ..... did you check the exhaust and head gaskets?  Using a smoking cigarette will give a leak away when you can hear it but before it shows visually.

Quote from: FSG on Yesterday at 06:40:19 PMspot tig the stock race on   

Ha Ha!  I was looking for your old thread where you discussed that.

I seem to remember that Strokerjlk tuned his 120R with E85 for power at the track and rode it as a daily driver.  He was a winner at the track with it. IIRC at one point he had about 40,000 miles on it.  I think he had a thread running about his testing and final results. I do recall the larger injectors and using more fuel. Jim doesn't seem to post here anymore but there may be some of that thread in the archives.

Here's one hit

https://harleytechtalk.com/htt/index.php/topic,78936.msg1000075.html#msg1000075