Junior
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Post by sprocket on Jul 25, 2011 18:26:34 GMT -6
I would go 4 valve..cast iron... if you can find one...... there is more meat left in the head... some of those custom ports jobs leave something to be desired IMHO. Not saying that scrappy's are like that but some I have seen have been are fairly poor quality. I think with a 59 or larger a 30mm would be great...but I would go for EFI, if you can understand how to program the ECU in chinese! (actually it is in English now) How about a turbo? I have bought from these guys and never had a problem... in Canada at least. .chinese-parts-canada.com/turbocharger_fuel_injection.html" rel="nofollow" target="_blank"> .chinese-parts-canada.com/turbocharger_fuel_injection.htmlI think the weak point on these engines is the open cage crank bearings and the connecting rod bearing... perhaps the stroker kits have a better c-rod bearing I don't know... The options are virtually endless... |
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New Student
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My posts, entertainment value only. A scoot ain't yours until your blood's on it. Then it owns YOU!
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Joined: Jul 23, 2011 10:38:36 GMT -6
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Post by mapbike on Jul 27, 2011 17:04:19 GMT -6
The 4 valve head kit, 59mm BBK, and 30mm carb. & intake upgrade, will likely be the route I go, I ride in very rough dusty dirty conditions and EFI or the turbo would not likely hold up well to these conditions, plus I ride 25-40 miles at times and am looking for better performance but also as much reliabilty as possible too, so I will be looking into doing those upgrades maybe as a winter project if all goes well and I get my new work shop finished. I did get my new exhaust on today as well as my UNI Filter and just those two things made a very noticable difference, NO more sputter at high RPM's either so the rich condition is gone now but i need to make sure that I'm not actually too lean now, scoot is running real nice but it is so HOT here right now I dont think it would matter how rich the mixer was it would likely overheat, it's 105 in the shade right now and very dry so it could show to be OK for now but when it cools down in a couple months I may be way lean.... time will tell and I will do a plug check to confirm what I have now. Peace I would go 4 valve..cast iron... if you can find one...... there is more meat left in the head... some of those custom ports jobs leave something to be desired IMHO. Not saying that scrappy's are like that but some I have seen have been are fairly poor quality. I think with a 59 or larger a 30mm would be great...but I would go for EFI, if you can understand how to program the ECU in chinese! (actually it is in English now) How about a turbo? I have bought from these guys and never had a problem... in Canada at least. .chinese-parts-canada.com/turbocharger_fuel_injection.html" rel="nofollow" target="_blank">.chinese-parts-canada.com/turbocharger_fuel_injection.htmlI think the weak point on these engines is the open cage crank bearings and the connecting rod bearing... perhaps the stroker kits have a better c-rod bearing I don't know... The options are virtually endless... |
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