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#1 |
Join Date: Mar 2021
Posts: 21
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Cam for a pentora 250
So I’ve been looking everywhere for a cam for my pentora 250 but cant seem to find anything on it.I’m trying to put a cam on it because I’m trying to squeeze out some extra horses out of it.The main reason I cant find anything because mine is a over head cam or ohc and most Chinese 250 are push rod.If anybody know anything please let me know where I can buy a cam for it
Thanks |
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#2 |
Moderator
Join Date: Oct 2016
Location: Houma, La.
Posts: 11,667
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The Wiseco 11:1 piston for the Honda CRF230F will fit and so will cams for the Honda CRF230F.
Cams https://www.ebay.com/itm/UPGRADE-Cam...9/174322962671 https://www.ebay.com/itm/New-Hot-Cam....c101195.m1851 https://www.ebay.com/itm/BBR-Motorsp....c101195.m1851 Piston https://www.ebay.com/itm/Wiseco-4816...F/382670730611
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2024 Linhai 300 ATV 4x4 2023 Lifan Lycan 250 Chopper 2023 Venom Evader 2022 Lifan KPX250 2020 Kawasaki Vulcan S (Sold) 2004 Honda ST 1300 2016 Black Hawk 250 (sold) Keihin PE30 carb,125 main,38 slow.Pod filter,ported & decked head 10:1 CR,Direct Ignition Coil,15/40Sprockets,NGK DPR8EIX-9,De-Cat,Dual Oil Cooler,Digital Cluster 2016 Cazador180 XL 2014 Coolster150 JerryHawk250.com My YouTube Channel |
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#3 |
Join Date: Mar 2021
Posts: 21
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Thanks so much I will order the cam and piston for it right away and how much power can I hope to gain by doing these mods
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#4 |
Moderator
Join Date: Oct 2016
Location: Houma, La.
Posts: 11,667
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Good for 5 to 7 hp. Definitely made a huge difference on my X22R 250. Also porting the head and a 30mm smooth bore carb will add some hp.
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2024 Linhai 300 ATV 4x4 2023 Lifan Lycan 250 Chopper 2023 Venom Evader 2022 Lifan KPX250 2020 Kawasaki Vulcan S (Sold) 2004 Honda ST 1300 2016 Black Hawk 250 (sold) Keihin PE30 carb,125 main,38 slow.Pod filter,ported & decked head 10:1 CR,Direct Ignition Coil,15/40Sprockets,NGK DPR8EIX-9,De-Cat,Dual Oil Cooler,Digital Cluster 2016 Cazador180 XL 2014 Coolster150 JerryHawk250.com My YouTube Channel |
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#5 |
Join Date: Mar 2021
Posts: 21
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Is there a stage 2 or stage 3 cam available or is it only a stage 1 available? and also where can I buy the smooth bore carb
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#6 |
Join Date: Nov 2017
Location: Marseille, France -> Conakry, Guinea
Posts: 1,481
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Stages are just marketing terms, there are no fixed or set definitions... If you get a big cam, you might need stiffer valve springs, clearance the valve pockets in the piston, lightweight retainers, etc. Just to theoretically make it all work together physically, and then supporting mods like a different carb, exhaust, ported head and a high compression piston so that it will run well together.
If you're thinking in terms of stages, it might be best to start small and understand what you're doing first. |
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#7 | |
Moderator
Join Date: Oct 2016
Location: Houma, La.
Posts: 11,667
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Quote:
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2024 Linhai 300 ATV 4x4 2023 Lifan Lycan 250 Chopper 2023 Venom Evader 2022 Lifan KPX250 2020 Kawasaki Vulcan S (Sold) 2004 Honda ST 1300 2016 Black Hawk 250 (sold) Keihin PE30 carb,125 main,38 slow.Pod filter,ported & decked head 10:1 CR,Direct Ignition Coil,15/40Sprockets,NGK DPR8EIX-9,De-Cat,Dual Oil Cooler,Digital Cluster 2016 Cazador180 XL 2014 Coolster150 JerryHawk250.com My YouTube Channel |
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#8 |
Join Date: Mar 2021
Posts: 21
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I understand what u mean and also will removing the egr valve help with horse power on nah
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#9 |
Moderator
Join Date: Oct 2016
Location: Houma, La.
Posts: 11,667
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Nah, won't make any difference.
__________________
2024 Linhai 300 ATV 4x4 2023 Lifan Lycan 250 Chopper 2023 Venom Evader 2022 Lifan KPX250 2020 Kawasaki Vulcan S (Sold) 2004 Honda ST 1300 2016 Black Hawk 250 (sold) Keihin PE30 carb,125 main,38 slow.Pod filter,ported & decked head 10:1 CR,Direct Ignition Coil,15/40Sprockets,NGK DPR8EIX-9,De-Cat,Dual Oil Cooler,Digital Cluster 2016 Cazador180 XL 2014 Coolster150 JerryHawk250.com My YouTube Channel |
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#10 |
Join Date: Mar 2021
Posts: 21
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One question will a 420 sprocket fit a 520 chain or is it not possible?and thanks for all the help
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Tags |
250, atv, camshaft, power |
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