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08-08-2013, 09:24 PM
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#1 |
 Join Date: Mar 2006
Location: Georgia
Posts: 43
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150cc upgrade no machining
HI all,
This may sound dumb coming from me but I really have not been keeping up with the 150cc upgrades. So I am looking to add a big bore kit upgrade for my customers that does not need machining and was wondering if anybody could tell me what the largest size bore I can order is that does not require machining. I want something that my folks can just install and go without any extra work. thanks for the help, John
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John Dikov Valley Scooters www.scootersus.com www.valleyscooterparts.com www.valleyscootersdealers.com 203-500-0960 |
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08-10-2013, 01:40 PM
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#2 |
 
Join Date: Mar 2010
Location: Houston area
Posts: 945
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I'd sure like to know that myself.
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"Beer never broke my heart" - Luke Combs |
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08-10-2013, 03:17 PM
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#3 |
 
Join Date: Aug 2011
Location: Buncombe Co. N.C.
Posts: 337
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Most I know of is changing the jug to make it an actual 158cc. Then over stroke cranks.
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2007 Sportiva Falcon GY6 150 4T 7,200+ Mi. 68 ( GPS Verified ) 76 MPG Few Mods, Lots-O-Tweaks 2003 Vento Zip R3i TurboCam 50cc 2T 8,500+ Mi. 62mph ( GPS Verified ) 90 MPG Seriously Modded Check out the new group for the Mountain Area! http://www.scootdawg.net/group.php?groupid=4 |
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08-22-2013, 12:22 AM
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#4 |
 
Join Date: Aug 2013
Location: sw fla
Posts: 7
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you need a shorty exhaust,
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08-22-2013, 09:15 AM
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#5 | |
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Join Date: Aug 2011
Location: Buncombe Co. N.C.
Posts: 337
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Quote:
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2007 Sportiva Falcon GY6 150 4T 7,200+ Mi. 68 ( GPS Verified ) 76 MPG Few Mods, Lots-O-Tweaks 2003 Vento Zip R3i TurboCam 50cc 2T 8,500+ Mi. 62mph ( GPS Verified ) 90 MPG Seriously Modded Check out the new group for the Mountain Area! http://www.scootdawg.net/group.php?groupid=4 |
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11-05-2013, 01:32 AM
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#6 |
Join Date: Jan 2013
Location: midwest
Posts: 93
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58.8mm is the largest size bore that can be installed on the GY6 engine without boring the case or a 58.5 but what is the point without a Stroker Crank. Just slapping in a 58.? is only going to give you about 5-6 more ccs around 156cc over 149.6 OEM. That will not even be noticeable to tell you the truth.
Lefty
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 Three Wheels keep me up You’ll never be old and wise if you weren’t young and crazy |
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11-06-2013, 05:36 PM
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#7 |
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Join Date: Jan 2013
Location: midwest
Posts: 93
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Here are my Mods:
Lefty Here is what my PST150H Ice Bear Trike currently has it was a 149.6cc Motor now it is 182cc motor: 62mm BBK 60mm Stroker Crank 16/37 Hoca Tranny Gears – Original were 13/40..I have 18/36 gears I have not put in yet Reduction gear is 43 teeth K&N Air Filter with a Short Stack SuperTrapp Muffler 1 1/4 Header Pipe 24mm Carb #122.5 Main Jet #38 Pilot Jet Peformance Coil/CDI Manual Choke Iridium Plug Prodigy Variator 12g Dr. Pulley Sliders 205/65-10 Kenda Load Tires-3"s taller than OEM 29 tooth Drive Sprocket-came with 24 tooth. DID 428 Pro V Series O-Ring Chain Givia 29" tall Windshield All Led bulbs Except the Headlights-I do not drive at night 4 way Flasher Turn Signal Beeper Relay for the Beeper connected to the Brakes VIP Trunk with Led lights Flasher on Vip Trunk lights Radio with SD card,MP3 connections
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Three Wheels keep me up You’ll never be old and wise if you weren’t young and crazy |
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02-12-2014, 01:15 AM
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#8 |
Join Date: Feb 2014
Location: las vegas
Posts: 100
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Yeah on a 150 its better to go with a stroker crank, you get more cc's without machining. with a +4 crank you will be at 160cc or with a +8 you could hit 170cc.
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02-12-2014, 11:40 AM
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#9 |
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Banned
Join Date: Feb 2014
Location: MIAMI
Posts: 196
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i would like to know this myself
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02-13-2014, 11:06 AM
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#10 |
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Join Date: Mar 2011
Posts: 29
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http://itistheride.boards.net/thread...-crank-project read this......
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Linear Mode
