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OK, now that I have first tracks-This is right up with Chuck's incredible machine. In many ways this may have been more useful, not many drone mills running around, and I'm going to send this vid to my friend with a V7R, along with a dare..
Gee, you don't mess around with panty waisted break in procedures, do you!Sending this too, I may have peed a little.
Whoo Hoo!!! That sums it up!! Got the replacement tensioner in today. A quick note, when disaasembling the front end of a small block Guzzi engine, DO NOT try to move the tensioner plastic out of the way with your thumb. Just unbolt it and remove it. Things are a lot better that way.
Attaboy! ;-T Congrats. Now you see why people have been talking up the Lario for a long time. There *is* that one little longevity problem, though. ;D
I hope that red stuff isn't blood.I have to say, what you did was very impressive!Ken
I have to qualify the difference between the two and four valve as quite dramatic. Very noticeable.
Absolutely. The 4 valve engines breathe much better as revs build.I talked to my friend that builds race engines about your piston hone job using a brake cylinder hone today. He thinks you'll be ok, although a Sunnen hone job would have been better..and he knows his stuff.Yes, you have addressed the reliability issues as we know them. Your job, should you wish to accept it, is to run the piss out of it for 50K miles. ;DNice job.
a totally bad-ass build. I hope mine turns out as nice. Going to a dyno at all?
Awesome! Great work. Sounds sweet!Kurt
Yes, planning on a Dyno for tuning. I am really happy how the fueling is working now. I was not sure the extra flow from the four valves would be handled by the auto tune. Turns out it was a non issue. I did not have to adjust a thing. Thanks for the compliment! What are you building?
LMAO. I am pumped! The bike was a blast to ride before. Now its just...exponential. ..
Thank you! It has been a long time in the making. Yes, I am pretty confident the valve train will not be an issue. I'm going to be putting the miles on this bike now, establish the reliability. It was interesting how the gearing and better flowing heads worked. As you can probably tell from the ride video, the bike wrapped right to 100 mph no problem. I could not feel any restriction on the intake like I used to. It was just a smooth winding up in rpm. I am not sure why I couldn't get fifth gear, until I backed out of it some. Need to work on that, mostly rider technique. Lol. I do remember that with the two valve heads, 100 mph was about it as far as the top speed. I could hit it in fourth gear with some effort, but fifth gear it would get to about 6K rpm and that was all she could do. Just too tall a gear and not enough air going into the combustion chamber.I am kind of surprised that the fuel tuning worked as well as it did. I just the air/fuel ratio at 13.2:1 and the auto tune handled it no problem. That is pretty neat, no messing around with jetting or spark advance, just type some numbers in the computer and go...Lol.Next step this spring is to tune it on a Dyno. Then just keep riding it.Thanks for all of your interest and input!
LM 1000 with lots of special goodies, but 4 valve heads, hm...http://wildguzzi.com/forum/index.php?topic=74056.0
This is why I invested into this mill to see what was possible when giving it its due respect. Yee-haaaaaaa
Congrats Mike!!! - I'm so happy your project is a success - like Chuck points out - the next 50k miles will tell the story. The DLC is one feature I still have to try (I have a old shaft with oil ducts I may have Ed fix up for me), allthough my lobes still are holding up, but I haven't done 50k on them either...yet. Happy to welcome a new SB 4V (8V) addict into the "club" ;-T ;-T ;-T Like Chuck once pointed out - they are more fun than a guy should be allowed to have :DNow you have to write up a few more ride repports :BEER:Hoping to cranck up my silver streak project this next season, but time is an issue with the family growing (grandkids) and traveling our vacations away.Ciao
Just watched the ride vid; didn't see that last night. Holy Moses did that thing get up there quick. Gave it a fist full and never backed off. Looks like valve float is a non-issue to the limiter and the fueling is very good. That's a beast! ;-TTake away the initial clutch slip and you're up to 60 in no time flat and blowing straight up like it's nothing. Truly impressive.
BTW, how high do you rev your bike? It feels like I could use another 1000 rpm or so. Not worth dinging a valve though.
I would not take her beyond 7500rpm - valve float is taking off on my modded Lario @ 8000rpm using Nevada springs and China valves, and one other parameter is the longer push rods. More weight to move than on the Lario. Using titanium valves may give more head room and perhaps lightening the rockers, but now it starts to get a bit tricky, one do not want to weaken them :) ...and titanium valves comes with a hefty price tag.Ciao
I agree with Ice Ice Baby on this rev thing. If you feel you've got more to be had then you're still safe. If Ice is getting valve float around the 8000 mark I'd stay clear of that. You know yours is good to what the limiter indicates and that's perfect. You can have some good safe fun now knowing this. I was trying to get a feel on mine from a fueling standpoint all last summer as well as dealing with life changes. Those are behind me, though I'm not certain on the fueling. It's good now, but think it can go higher on the mains. I'm up there as is, but she is none too rich. So... this spring I'm going to finish that job of dialing it up and ride ride ride. I really do need to see what it can do up top. I have a couple different options I could try for kicks. Mine has even bigger valves and a modified cam. What yours did tells me something!How did it do low side of the gearing on pull in normal riding (under 4k RPM)? Comparable to the two valve or did it feel bigger? Much more intoxicating these 4-valves over the 2. Betcha' can't wait for warm weather again. ;D
First ride report...it's a different bike..the only words I can use to describe it..The acceleration, rolling on power, is effortless now. Its just comes on and keeps winding up. I went out and broke the ton with her this afternoon. Funny, at the end of the vid, I couldn't get 5th gear. I backed off and caught it. 4th gear was holding against the rev limiter, 100 mph and 7600 rpm. When I caught 5th, it was going through 110 and plenty of room left. Had to back off for traffic ahead of me. That was plenty for me, I know she can represent now...and not come apart! LOL I will have to compose my impressions in a more detailed manner and post them. Right now I am extremely pleased with the conversion. It was well worth it. Next on the agenda is to see about longevity. I really don't think I will have any problem putting a lot of miles on and having her be reliable. We will see.For your perusal and enjoyment:
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