First of all…thanks for all the great information I’ve read here. I think I’ve spent 12 hours reading and learning. What a great source of solid information! This is my first post here and I’d like to contribute what I can.
I purchased a SunL 150cc buggy. I love it, but wanted more acceleration. Mine is the 2005 ˝ model which has the larger 22” rear tires (was 19” I think), I don’t think they changed the gearing to accommodate the larger tires. Anyway, I ordered the 9 and 10 gram rollers from MiamiMoto and the racing clutch, spring and plug from Carl. To sum it up the difference is amazing. Thanks Carl! I’m still running the stock air filter and exhaust, but the acceleration is massively improved. I wish I had a speedometer and tach, but that it down the list. The engine really revs up much better. Before the mods, it always felt like I was starting out in 5th gear or something. Now I can power out of corners and get to my top speed much quicker.
Thanks, thanks, thanks!
Oh, I took lots of pics of the entire process…I could post them if it would help anyone?
Mine is the 2005 ˝ model which has the larger 22” rear tires (was 19” I think), I don’t think they changed the gearing to accommodate the larger tires.
The old SUNL Explorer had 19" rear tires.
When they switched over to the 22" in tires, I'm sure they didn't change the gearing in any way. I've ridden both and the ones with 22" rear tires are definitely slower on take-off and don't feel as powerful.
I was glad when I found Buggynews too. It actually adds value to your buggy just having some online buggy buddies to knock ideas around with, and get the upgrade info on parts and such. Thanks for your report.
In my mind I still think the official description of BuggyNews should read:
BuggyNews.com - The premiere sourse for all your buggy news and information on the net.
First of all…thanks for all the great information I’ve read here. I think I’ve spent 12 hours reading and learning. What a great source of solid information! This is my first post here and I’d like to contribute what I can.
I purchased a SunL 150cc buggy. I love it, but wanted more acceleration. Mine is the 2005 ˝ model which has the larger 22” rear tires (was 19” I think), I don’t think they changed the gearing to accommodate the larger tires. Anyway, I ordered the 9 and 10 gram rollers from MiamiMoto and the racing clutch, spring and plug from Carl. To sum it up the difference is amazing. Thanks Carl! I’m still running the stock air filter and exhaust, but the acceleration is massively improved. I wish I had a speedometer and tach, but that it down the list. The engine really revs up much better. Before the mods, it always felt like I was starting out in 5th gear or something. Now I can power out of corners and get to my top speed much quicker.
Thanks, thanks, thanks!
Oh, I took lots of pics of the entire process…I could post them if it would help anyone? :D
Randy
I would like to see those pictures. I have the same model. Right now, it is in Eastside being fixed. The carb was puking gas. They fixed that, put on a HP kit and rejetted it for higher altitude. It ran worse when they were done than before. If your mods work well, I may buy them and do the install myself. Eastside does not impress.
What jet did they use on your kit?? I will run better when jetted correctly. They tend to over jet there from what we've seen.
127.5 to 130 seems to give nice results after those mods.
-Steve
sunl150 wrote:
dewmanity wrote:
First of all…thanks for all the great information I’ve read here. I think I’ve spent 12 hours reading and learning. What a great source of solid information! This is my first post here and I’d like to contribute what I can.
I purchased a SunL 150cc buggy. I love it, but wanted more acceleration. Mine is the 2005 ˝ model which has the larger 22” rear tires (was 19” I think), I don’t think they changed the gearing to accommodate the larger tires. Anyway, I ordered the 9 and 10 gram rollers from MiamiMoto and the racing clutch, spring and plug from Carl. To sum it up the difference is amazing. Thanks Carl! I’m still running the stock air filter and exhaust, but the acceleration is massively improved. I wish I had a speedometer and tach, but that it down the list. The engine really revs up much better. Before the mods, it always felt like I was starting out in 5th gear or something. Now I can power out of corners and get to my top speed much quicker.
Thanks, thanks, thanks!
Oh, I took lots of pics of the entire process…I could post them if it would help anyone?
Randy
I would like to see those pictures. I have the same model. Right now, it is in Eastside being fixed. The carb was puking gas. They fixed that, put on a HP kit and rejetted it for higher altitude. It ran worse when they were done than before. If your mods work well, I may buy them and do the install myself. Eastside does not impress.
_________________ 2004 KPX Xterro: pumper carb, oil cooling, 10 gram rollers, Toy junkies pipe, uni
2005 Blade 150 DX: 4 Valve head, 10 gram rollers, East Side pipe, uni
Post some pics... can't have enough. Always nice to see the innerds of different buggys along the way as well. The more we have here the better things come up on searches as well.
-Steve _________________ 2004 KPX Xterro: pumper carb, oil cooling, 10 gram rollers, Toy junkies pipe, uni
2005 Blade 150 DX: 4 Valve head, 10 gram rollers, East Side pipe, uni
Most people seem pleased somewhere between 9 and 10 grams. I like my 9s.
People that do nothing but sand riding, mudding, heavy hill riding seem to like to go lower... like 7 gram or so. But the buggy will run funny on flat hard packed ground. It will always rev the engine up really high, even if you don't need to. Plows through the sand and hills with ease though.
If you go with a happy medium like 9 or 10 grams you enjoy better sand and hill performance while not keeping the engine pegged at high RPM all the time needlessly.
We've seen the buggys come standard with anything between 12 and 14 grams in the 150 sized engines so far.
-Steve _________________ 2004 KPX Xterro: pumper carb, oil cooling, 10 gram rollers, Toy junkies pipe, uni
2005 Blade 150 DX: 4 Valve head, 10 gram rollers, East Side pipe, uni
I used the 9 gram rollers. I bought 9 and 10 gram rollers. I haven't tried the 10's yet but I REALLY like the 9's. The RPM's are much higher, but not too high. The kart feels so much more "alive" for lack of a better word. I can hear the transmission "whir" sound more now than I could before. Not really sure why, but it doesn't seem to be a problem. I'll post pics as soon as I can. It still doesn't spin the wheels from dead stop, but they will spin even on little turns now.
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