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Post by xyshannen on Jan 14, 2015 4:25:22 GMT -5
Looking good man!
I broke my engine in by setting my scoot up on it's center stand and turned the idle up to 5k (no belt on the cvt). I had a fan pointed at it and ran it for about an hour. I sat with it the whole time and played with the idle speed as to not just run it at 5 k. I would also blip the throttle every now and then. It was interesting to hear the motor break in. In the first 20-30 mins you could actually hear the rings seat.
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Post by xyshannen on Jan 13, 2015 20:31:16 GMT -5
I agree, that noise is not crank related. If it were it would be constant.
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Post by xyshannen on Jan 11, 2015 20:39:21 GMT -5
jerseyboy Just a note about if the tests done on the cams outputs were on a stock gy6 or not. According to the HP readings they were getting, their engine(s) had to at least have a free flow exhaust with a good intake and probably a complete performance ignition.
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Post by xyshannen on Jan 11, 2015 20:26:44 GMT -5
Back when I was 14 it snowed enough here in Jacksonville to get 2 inches on the ground. I made a 2 foot tall snow "MAN" on the trunk of my Grandmothers car. She noticed all the honks she was getting on her way home. Once home she decided to see what all the commotion was about, When she looked at the snow man she was very surprised to find out he was anatomically correct, and rather endowed also.
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Post by xyshannen on Jan 11, 2015 20:19:24 GMT -5
Everyone knows stickers make you faster....including cops.  |
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Post by xyshannen on Jan 10, 2015 12:01:53 GMT -5
No problem. That thing really should be posted in a sticky at the top of this forum.
See I don't think the a9 is better than the 11. (why I went with the 11) the nine might have more pull past 8k, but the 11 has more top end and better torque up to 8k. As I see it the 9 would only be my choice if I were wanting to drag race. Those extra 500 rpms would give you a little more top end speed. As I see it if you run these motors over 8k for long periods of time, they won't last very long. It's heat and RPMs that kills these motors. They don't last that long to begin with so running it at 8500 (or 8k for that matter) longer than the time it takes to do a speed test run isn't really something you want to do. With the way my motor is built I can cruise at 55 mph at 7k and still have plenty of power left. I'm running 10 gram rollers.
You'r right about that a8, I'm actually planning on getting one so I can see the difference. Like you I would rather have more power at lower RPMs. I didn't build my engine so I could run my scoot at 70+ mph/ I'm more worried about having power to get out of the way on normal surface streets. I'll never take my scoot on the freeway.
Oh and good job on getting the new rocker assembly. Cams make wear patterns in rockers and each cam's wear pattern is different. Not changing the rockers is good way to knock out the lobes on a new cam.
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Post by xyshannen on Jan 10, 2015 4:02:34 GMT -5
Not 100% sure bro..I read an A8 was compared to stock so I figured A10 would give me just a little more lift...and it did 1mm across the board. Didn't want to go to big cause then you get alot of slap on the valves to seats...but I guess with a better head that would be fine.Plus i still have a 24mm carb.. I bet the A10 will take alot of air and fuel,,heck the stock cam can handle a 30mm carb. The cam size is something I am going to experiment with in the future though... I wasn't on my computer earlier or I would have linked this.. Just incase you haven't seen it. wildswede.se/Baotian/Cam_horsepower2.jpgIn this graph you can see the cam's # has nothing to do with it's performance. As for how much lift they have I really can't say. I do know the creator of this graph (a fellow member) stated that the lift of the a14 was s much that any larger and it would stress the valves. As for my a11 it's one heck of a performer! It does just about open the valves about as much as the springs would allow but not so much so to cause any problems. I did have to shave a mm or two off of my intake valve well on the piston because it was hitting the piston. I asked my question because according to the chart the a10 has no advantages low end or top end over a good number of cams you could have chosen...Eh it's still better than stock. Geh, from what I understand, most cams sold as "performance" cams are usually a9s. As for the stock being comparable to the a8. Maybe in top end performance, but the a8 should be pretty aggressive on the low end. I don't think I would label anything about the stock cam as aggressive. |
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Post by xyshannen on Jan 9, 2015 14:09:25 GMT -5
Just curious as to why you went with the a10?
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Post by xyshannen on Jan 6, 2015 15:11:27 GMT -5
It's a mix of 3, a 3 inch 30mm tunnel ram, a clocking intake spacer, and a 30mm Hoca intake.
An added benefit of a setup like this is it's really easy mess with the air/fuel mix and I can pull the carb and swap out jets and reinstall and tune in less than 30 mins.
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Post by xyshannen on Jan 6, 2015 14:33:16 GMT -5
geh3333 Mine was actually hitting the dang bottom of the pumper on the carb. Here's mine as of today. I was outside rejetting the carb and took this pic. My motor is very sensitive the changes in weather. Hot or cold more than 30 degrees and I have to rejet. A change in air temps 10 degrees + or - and I have to readjusting the air fuel mix. It runs fine if I don't, but for it to be running like a swiss clock, I have to tune. I don't mind playing with the tune and I'm OCD about how it runs. It's in the high 70s today so I had to lean it out some. i1287.photobucket.com/albums/a624/xyshannen1/Mobile%20Uploads/IMG_20150106_125747_zpstla0yqgb.jpgi1287.photobucket.com/albums/a624/xyshannen1/Mobile%20Uploads/IMG_20150106_130033_zpsahawafvl.jpgAs a side note, you can see the cut up 2 gal gascan that I cut and installed as a much better replacement of the old plastic rear tire cover/fender that attached to my old stock exhaust. It sucked and didn't do jack for protecting my engine from road grime. The can pretty much blocks off the whole engine compartment from the rear wheel. I just cut it to fit in the frame between the carb and the battery box/rear wheel. Then zip tied it to the frame.
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Post by xyshannen on Jan 5, 2015 22:25:59 GMT -5
Yeah Jerry bout the only thing that scoop does is help keep from sucking the heated air coming off of the header. I just put it on there because I only paid like 4 bucks for it. Being winter I'm not too conserned about putting something better on there. I'll end up doing something like what Geh has before summer.
Geh, it does sound hella deeper than my cell could pick up.
Tom, one thing I tried and it almost worked was using a small radiator hose to attach the carb to the intake. The rubber connector that comes with these intakes has a gap between the 2 that pushes the carb up against the cross bar. 1/16th of an inch less and it would have worked and saved me a bunch of trouble.
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Post by xyshannen on Jan 5, 2015 10:54:41 GMT -5
jerseyboy tvnacman geh3333 JerryScript dyoung1167 Geez, get busy for a couple of days n you guys go nuts.  Jersyboy, No it isn't a "ram air". It is a tunnel ram and it does act as a fuel and air excelerator (I know that's not the right technical term, i'm just getting up and my brain isn't quite working) Jerry, I don't know how it affected my top end performance vs my bottom end. I did so much other stuff to the motor at the same time this was installed that it runs so much better in all ends it's hard to say. I mean with the cam I have installed.. It pulls like a monster all the way up to 8k. dyoung, An actual ram air works well on a carb set up and with having a pilot and a main jet it would have little effect on your air fuel mix at idle speeds. Think about it, at idle seeds you are not moving fast enough, or at all so little extra air is being forced into the engine. Tune your main jet for the extra air and you will be fine. But this point is mute for my setup as I do not have "ram air" Jerry, It does get a lil warm but not enough to make a difference how the engine runs once it gets hot. Also since the engine compartment on my scoot is very closed off. I do have a cold air scoop on the side of thee body to keep things cool in there, and help feed cold air right to the carb. Since this pic, I installed a 45 degree clocking spacer that turns the carb an puts my UNI filter pointed right at this scoop to suck cold air when at speed. John, That pic was just after the rebuild. The cover was put on right after this. Remember you commented on the paint I used. An hour later.  The intake on the carb just cleared the cross bar wile out of the engen. After I mounted it in the scoot it changed the position of the bar causing it to hit the carb just enough I could not put a filter on. It still ran but riding like that isn't smart, so I installed the a clocking spacer to lift the crab and point it towards the air scoop. This solved the clearance issue.. I need to get an updated pic of it how it looks now. LOL at fart sucker. I had to cut a channel in my under seat compartment. I can still use the compartment, but obviously small objects don't go in this compartment. Sides my scoot has a pretty large trunk that more than meets my storage needs. It runs And John remember, that's your CDI in there.  
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Post by xyshannen on Jan 2, 2015 21:51:39 GMT -5
This is how I solved the crossbar issue.  |
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Post by xyshannen on Dec 27, 2014 19:30:33 GMT -5
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Post by xyshannen on Dec 22, 2014 17:57:35 GMT -5
Thanks man! I was really hoping they would have ponied up for the 30/28 mm valve heads. I still have my stock cylinder jug and will get you some numbers off of it in the morn.I can tell you from memory it doesn't seem to be much thicker. Hey Shannen, did you ever read the thread I linked to? You can always send Matt a PM to contact him, that's how I got in contact with him....I never talked to him directly about the stroker, that was cyborg, but I too would like to know his results better myself. You have a chance to get that measurement yet? Sorry man..with xmas coming, I've been up to my ears with leather work orders and have barely had enough time to even log on to the site. I think next year I'm going to have to hire some help for Nov and Dec. Hows this working out for you? |
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