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Post by bwader on Apr 22, 2013 11:52:23 GMT -5
On the 55mph highway wot my rpms range from 6,900 to 7,100 and my top speed was 54mph gps on that run.
16 gram sliders I drilled out the centers to make 14 gram sliders. Seems like I'm too heavy for the scooter to go past 7,200 rpms unless I'm behind a semi which rpms will go up to 7,300-7,500 and I finally feel that power range I keep reading about.
I got a new blue performance cdi and orange coil coming in to try out. I know people say it doesn't really do anything but I'm trying it.
I have stock black cdi and coil
I've tried a lot of different roller combinations all 9's, 10's, 12's, 13's , and 16's I liked the 16's the best for the lower rpm range but I still have trouble getting close to 7,500 rpms.
I've even tried 9's/16's 12's/16's 10's/13's.
I have been trying this goal but I just had it on the back burner I'm too heavy at 245 pounds for my scooter.
The 14gram sliders better than rollers I agree.
I would just like to run at the power range when I'm on the highway. I only have 3 miles but it would be nice to be able to overcome the wind and maintain 7,500 rpms. I have a windshield too.
So if I could get 8,000 rpms I could let off the throttle to get 7,500.
I don't think the cdi is rpm limited 150's aren't supposed to be.
My scooter should be able to hit 7,000-8,000 rpms even with me on it.
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Post by tvnacman on Apr 22, 2013 11:59:13 GMT -5
To increase the rpm you need to lighten up the weights .
John
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Post by skuttadawg on Apr 22, 2013 13:35:57 GMT -5
Try a performance variator that has a larger diameter and steeper ramps . Perhaps an exhaust and airfilter mod will have more flow and be able to rev higher once rejetting as to not be lean with increased air flow
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Post by urbanmadness on Apr 22, 2013 14:31:51 GMT -5
yeah, the weights are way to heavy. I'm running a HOCA 115mm variator with 11 gram weights and I get 57(gps confirmed) out of my 10" wheeled vintage (verano 150) and I weigh 310.
Just curious, do you have an EGR head on yours?
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Post by millsc on Apr 22, 2013 14:49:51 GMT -5
Dont trust the built in rpm gauge they are often wrong
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Post by millsc on Apr 22, 2013 14:51:23 GMT -5
Mine goes to 7500 at wot but if i bang the dash it will go up to 7900
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Post by seanalex538 on Apr 22, 2013 15:53:15 GMT -5
My scooter will run at about 8200rpms on a good day and that's at about 35mph.
sean
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Post by prodigit on Apr 22, 2013 18:11:46 GMT -5
It's not hard to modify the RPMs.
It is hard to increase MPH over the limit.
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Post by tvnacman on Apr 22, 2013 18:17:56 GMT -5
I have gotten positive feedback on this and I used it as well .  John |
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Post by jeffery5568 on Apr 22, 2013 19:41:17 GMT -5
Mine has 14 gram rollers and it "shifts" at 5500 rpms but after that it will keep climbing until I let off I have ran it up to 9500 rpm. I ordered a 115 koso varaitor with 12 gram rollers. Hoping I can take off faster when it shifts I feel it lose power.
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Post by nate7504 on Apr 22, 2013 20:02:10 GMT -5
I have that same variator in my 150cc with 14g rollers,when I tested it I could get to 55@7200 or so but the wind was at my back.now on a flat with no wind I can only get the same results as you and I weigh 195,so I was thinking about going to 12g rollers,I will say my take off is much better now but I would rather have better top end due to the roads I travel,if I could get 7300-7500 I think I would be in better shape to hit closer to 60mph,by the way I have that cheap eBay digital tachometer it has a lag when the rpm changes but it is fairly accurate as compared to the one in my car
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Post by prodigit on Apr 22, 2013 22:44:44 GMT -5
The problem is, with those lighter rollers, that the variator will not be maxed out under 7500 RPM. Meaning, you'd have to go 50MPH or so, before the belt reaches optimal position on the var.
That means MPG goes down, traction goes up (but generally a 150 has plenty of traction or acceleration), and belt wear goes up too.
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Post by skuttadawg on Apr 22, 2013 22:54:18 GMT -5
On my 2T I tried going from 6 grams to 4 grams and all it did was rev higher with a slower speed with top end loss .
Pushing it to its max RPM can wear it out faster , have increased risk of damage and less MPG . Wow with that many diff weights I would think you could spend all day testing a restesting and hopefully get it to how you like it . Stock clutch and torque springs ?
My Echarm came with 12g rollers and I switched to 12g Dr Pulley sliders and loved how it had a better acceleration curve and gained 5 MPH on top end . I would like to test heavier weight to see what my top end would be as well as try 11gs with 1k or 1.5k clutch springs to see how fast it would be on takeoff . My takeoff is quite fast and I stay around 45 to 60 MPH as when I go above that it gets sketchy and outright skeery at 75 . I do not have a tach but I have a rev limit of 8,5000 according to my paperwork as mine is controlled by the ECU instead of a CDI box .
Instead of redlining it you might want to look into getting taller final drive gears instead
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Post by bwader on Apr 23, 2013 23:03:26 GMT -5
On my 2T I tried going from 6 grams to 4 grams and all it did was rev higher with a slower speed with top end loss . Pushing it to its max RPM can wear it out faster , have increased risk of damage and less MPG . Wow with that many diff weights I would think you could spend all day testing a restesting and hopefully get it to how you like it . Stock clutch and torque springs ? Instead of redlining it you might want to look into getting taller final drive gears instead Yes stock clutch and torque springs I got 10 gram sliders coming in the mail I ordered I figured the sliders 200-300 rpm change every gram change up or down. I consistently get 6,900 rpm WOT at around 50-54mph with 14 gram sliders so 13's 7,100-7200 12's 7,300-7,400 11's 7,500-7600 10's 7,700-7,800 rpms I chose 10's so I can have leeway when it comes to the wind on the highway. Plus if it is too much I can combo it 10's/14's and try that out. |
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Post by bwader on Apr 23, 2013 23:14:29 GMT -5
yeah, the weights are way to heavy. I'm running a HOCA 115mm variator with 11 gram weights and I get 57(gps confirmed) out of my 10" wheeled vintage (verano 150) and I weigh 310. Just curious, do you have an EGR head on yours? I had an emissions canister off the fuel tank I took off but still have. Off the pipe going to the muffler I cut the line and plugged it. It went to part of the snorkel. I plugged that end of the snorkel that used come from the exhaust. I did that mainly that the snorkel part broke and it was the easiest thing to do. Plus I didn't know before its designed to save gas. But oh well one less thing to worry about |
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