08-26-2017, 11:51 PM | #1 |
Join Date: Jul 2017
Location: Hamilton,Ohio
Posts: 52
|
Enforcer 6hp possible?
Ok so I have been looking around and here is what I want.
Bashan Enforcer...supposidly 15.6 HP...do you guys think adding 7hp is possible and I would like to shed 15lbs. Lets hear your thoughts!! |
|
08-27-2017, 12:19 AM | #2 |
Join Date: Oct 2015
Posts: 75
|
Doubtful you'll find another 45% in hp, but there are likely lots of things you can do to lose the weight. Biggest weight loss would come from losing things you don't need. If it were me and I didn't mind spending some dollars, I would lose the passenger pegs and stock mirrors. The whole exhaust would be replaced (getting rid of the cat), lighter headlight and tail light assemblies, lithium battery,lose the rack grab handles, aluminum bars, swap the turn signals for the tiny ones, lose the entire air box for a pod filter, lighter tires, take out the stock gauge cluster and put in a vapor or something similar, ditch the chain guard and countershaft cover if possible. At this point I'd question what the heck I just did to my bike and why I just spent another 25% over the bike's cost for a minimal weight reduction on an overweight bike. Seriously, just enjoy the bike for what it is. At that price point and owner support here, it's hard to go wrong.
|
|
08-27-2017, 02:03 AM | #3 | |
Join Date: Jul 2017
Location: Hamilton,Ohio
Posts: 52
|
Quote:
|
|
|
08-27-2017, 03:07 AM | #4 |
Join Date: Apr 2017
Location: Omaha, NE
Posts: 8,100
|
Yes, it is very possible. I have seen proof of a CG250 engine making 18whp on a bike, which you could roughly translate to 20 crank hp. What it requires is head work. the ports on these heads suck, and I have a whole thread with pictures showing just how much they suck. The engine in question I am referencing also has a decked head though, which bumped the compression up almost a full point. While I do plan on porting the head, I do not plan on decking the head to that extreme. I will aim for maybe an extra half a point at most. More compression = more heat and stress = reduced life.
This is in fact my goal over winter with my Hawk. I already have an extra head, I just need to get around to doing the port work to it and then taking the time to install it. The cylinder heads themselves are actually not that expensive. I got a complete assembly for $50, and I regularly find them around 50-60 bucks. The expensive part, if you can't do the port work yourself, would be having a shop do the work. Thankfully, since it's a single cylinder 2 valve head, they cost won't be too ridiculous. You could probably call around and get quotes. Likely cost would be around $150-250 depending on what you want done. With a tuned carb, free flowing exhaust and intake, somewhere around 17-18 crank hp is realistic for a CG250 engine. If 20hp is your goal, the last 2-3hp has to be made up on the cylinder head.
__________________
Hawk Information and Resource guide: http://www.chinariders.net/showthread.php?t=20331 2018 Hawk 250 - Full Mod list here. http://www.chinariders.net/showpost....62&postcount=1 2024 Royal Enfield Shotgun 650 https://chinariders.net/showthread.php?t=34124 |
|
08-27-2017, 01:31 PM | #5 | |
Join Date: Oct 2015
Location: connecticut
Posts: 980
|
Quote:
|
|
|
08-28-2017, 04:30 AM | #6 |
Join Date: Feb 2016
Location: George West, Texas
Posts: 4,097
|
Megadan...i see what ya dun there, (18whp ..."whopping horsepower")
__________________
***************************************** 2015 Bashan"Blaze" BS250GY-31 (DB-07K-250) GONE 2017 Suzuki V Strom 650 XT "We are all born ignorant, but one must work hard to remain stupid." ~Benjamin Franklin~
|
|
08-28-2017, 05:27 AM | #7 |
Join Date: Apr 2017
Location: Omaha, NE
Posts: 8,100
|
I prefer to call it whoopin' horspower!
__________________
Hawk Information and Resource guide: http://www.chinariders.net/showthread.php?t=20331 2018 Hawk 250 - Full Mod list here. http://www.chinariders.net/showpost....62&postcount=1 2024 Royal Enfield Shotgun 650 https://chinariders.net/showthread.php?t=34124 |
|
08-28-2017, 09:01 AM | #8 | |
Join Date: Jun 2016
Location: akwesasne, NY-13655
Posts: 2,220
|
Quote:
|
|
|
08-28-2017, 10:57 AM | #9 |
Join Date: Mar 2010
Location: Volcano, Ca
Posts: 7,112
|
I haven't seen any dyno numbers on a CG motor but I'd imagine that with simple mods (breather, carb and jetting and pipe), expect about 3??? Porting may help but I doubt with the stock super-mild cam. No reason to open holes if the cam timing will still only allow so much to enter. These things were built for longevity far more than anything. Either way, the standard mods make 'em pretty spunky. These things are much like a 1 cylinder Panhead.
On the QLink, a solid 5 is gained by jetting and muffler. The difference between a pushrod and OHC motor.
__________________
"Light a fire for a man, and you heat him for a day. Light a man on fire, and you heat him for the rest of his life." 2007 Suzuki DRZ400S (SM convert) 2009 Q Link XP 200 1967 BSA B25 250cc Starfire 2022 Royal Enfield Interceptor 650 2023 Royal Enfield Scram 411 1948 Royal Enfield Model G 350 |
|
08-28-2017, 11:10 AM | #10 | |
Join Date: Jun 2016
Location: akwesasne, NY-13655
Posts: 2,220
|
Quote:
|
|
|
08-28-2017, 01:32 PM | #11 |
Join Date: Mar 2010
Location: Volcano, Ca
Posts: 7,112
|
My particular experience is that with a super mild cam, opening the ports (more than just a clean up) reduces the venture and vacuum action created by the tighter porting, creating less cavitation and atomization. One of my old Harley's was a perfect example. I ported it and put a larger carb on it with pipes but left the cam alone. Did it run a little better? Maybe,...once it was running. Kick starting it became a bear. Not enough atomization and it would drown the plug quickly. I cammed it and problem solved. Then it gave me second gear wheelies.
__________________
"Light a fire for a man, and you heat him for a day. Light a man on fire, and you heat him for the rest of his life." 2007 Suzuki DRZ400S (SM convert) 2009 Q Link XP 200 1967 BSA B25 250cc Starfire 2022 Royal Enfield Interceptor 650 2023 Royal Enfield Scram 411 1948 Royal Enfield Model G 350 |
|
08-28-2017, 02:46 PM | #12 | |
Join Date: Apr 2017
Location: Omaha, NE
Posts: 8,100
|
Quote:
Not the greatest pictures, and I can't show the area around the valves to well until I decide to disassemble it more, but believe me... these ports leave a lot to be desired. The exhaust port is especially terrible. The reduction in cross section at the valve guides is pretty bad and can easily be cleaned up. Just to toss in my own head porting experience. A better flowing head on a weaker cam profile will always make more, and better power, than a poor head with a radical cam as long as intake velocity is maintained.
__________________
Hawk Information and Resource guide: http://www.chinariders.net/showthread.php?t=20331 2018 Hawk 250 - Full Mod list here. http://www.chinariders.net/showpost....62&postcount=1 2024 Royal Enfield Shotgun 650 https://chinariders.net/showthread.php?t=34124 |
|
|
08-28-2017, 03:22 PM | #13 | |
Join Date: Jun 2016
Location: akwesasne, NY-13655
Posts: 2,220
|
Quote:
|
|
|
08-28-2017, 06:31 PM | #14 | |
Join Date: Jun 2016
Location: akwesasne, NY-13655
Posts: 2,220
|
Quote:
|
|
|
08-29-2017, 12:34 PM | #15 | |
Join Date: Mar 2010
Location: Volcano, Ca
Posts: 7,112
|
Quote:
Back to point, if porting is on the menu, as you know, it needs to be balanced all the way through with breather, carb, jetting, cam and exhaust to really be effective. I'd LOVE to find a cam grinder who'd like to play with a CG cam! :-)
__________________
"Light a fire for a man, and you heat him for a day. Light a man on fire, and you heat him for the rest of his life." 2007 Suzuki DRZ400S (SM convert) 2009 Q Link XP 200 1967 BSA B25 250cc Starfire 2022 Royal Enfield Interceptor 650 2023 Royal Enfield Scram 411 1948 Royal Enfield Model G 350 |
|
|
|
|
|
|