jaspersbanshee Posted December 28, 2011 Report Share Posted December 28, 2011 (edited) does anyone know if i can hit 100hp with a 421 kit? if so what kind of pipes and carbs? i can run 50/50 fuel, and do a little trail riding, so it cant be a full drag port. any help is appreciated!!! Edited December 28, 2011 by jaspersbanshee Quote Link to comment Share on other sites More sharing options...
n2otoofast4u Posted December 28, 2011 Report Share Posted December 28, 2011 This ranks right up there with some of the most stupid questions asked on here. Quote Link to comment Share on other sites More sharing options...
SandmanPNW Posted December 28, 2011 Report Share Posted December 28, 2011 does anyone know if i can hit 100hp with a 421 kit? if so what kind of pipes and carbs? i can run 50/50 fuel, and do a little trail riding, so it cant be a full drag port. any help is appreciated!!! You can get 100hp out of a 421. Might I ask WTF you want 100hp in the trails for? Quote Link to comment Share on other sites More sharing options...
NYUK Posted December 28, 2011 Report Share Posted December 28, 2011 u just came over from fb huh Quote Link to comment Share on other sites More sharing options...
jaspersbanshee Posted December 28, 2011 Author Report Share Posted December 28, 2011 You can get 100hp out of a 421. Might I ask WTF you want 100hp in the trails for? i do SOME trail riding, but also like hp like anyone else. if i wanted slow id a bought a utility. Quote Link to comment Share on other sites More sharing options...
SandmanPNW Posted December 28, 2011 Report Share Posted December 28, 2011 i do SOME trail riding, but also like hp like anyone else. if i wanted slow id a bought a utility. I hear ya man. You can still do a full drag port and run 50/50. Now that you mention it, that would be a bad ass trail/drag bike. 39pwk carbs and shearer OOF pipes since you won't be in the trails much. Quote Link to comment Share on other sites More sharing options...
jbooker82 Posted December 28, 2011 Report Share Posted December 28, 2011 If you can ride a cub in trails then your trails are not really trails they are power line roads, or fire roads. Quote Link to comment Share on other sites More sharing options...
dirtydownunder Posted December 28, 2011 Report Share Posted December 28, 2011 buy a serval. then you can keep porting/modding it untill you hit 100hp. start off with a lazy but torquey 75-85hp. then progress !! use the same pipes (shearers, cpi, etc) and carbs, 35's will be ample. remember, a 100hp trail bike, is like a ~1.5hr trail ride haha. not much of a ride. but 100hp is a nice number to tell your buds. Quote Link to comment Share on other sites More sharing options...
gh2010ism Posted December 28, 2011 Report Share Posted December 28, 2011 does anyone know if i can hit 100hp with a 421 kit? if so what kind of pipes and carbs? i can run 50/50 fuel, and do a little trail riding, so it cant be a full drag port. any help is appreciated!!! Yes you can I believe a 421 cub bolt on is 80 without porting. But I'm not sure how you would handle 100 hp on a real trail the power band is going to be really strong. If I were you I would have a trail bike and a drag bike if you really like HP. Quote Link to comment Share on other sites More sharing options...
armyvet Posted December 28, 2011 Report Share Posted December 28, 2011 too much of a good thing isnt really a plus in the wrong enviroment...fun for the slag pits though Quote Link to comment Share on other sites More sharing options...
spurdy Posted December 28, 2011 Report Share Posted December 28, 2011 Yeah, I don't think a 100 hp cub would be a good set up for real trail riding. The cub out of the box is drag ported (so in one of your first posts you said *can't be a full drag port*), well that's what a cub is. Ported for drag racing with drag port timings. Granted there is further porting you can do to get more out of a stock cub but it is a drag cylinder. Now, the serval has lower port timings and con be increaesed to the regular cub timings in the future but has a much smother power delivery, which is more what you would want for trail riding. I think your best bet would be either a serval, or a very aggressive duen ported stock cylinder. Depending on the fuel you run and set up, you an squeeze 80-90 hp out of a well set up stock cylinder and maintain the trail riding ability. Last thing yoiu want is to have that light switchy power band of a drag port come on at the wrong time in the trail. With a drag port wyour gonna be right between not having any power and having way too much power. SP Quote Link to comment Share on other sites More sharing options...
Coupelx Posted December 28, 2011 Report Share Posted December 28, 2011 if you have to ask how to get 100hp then your probably not capable of riding 100hp. Quote Link to comment Share on other sites More sharing options...
Phelps Posted December 28, 2011 Report Share Posted December 28, 2011 if you have to ask how to get 100hp then your probably not capable of riding 100hp. man i wonder if i could handle 100hp sounds fun! Quote Link to comment Share on other sites More sharing options...
BUILDER Posted December 28, 2011 Report Share Posted December 28, 2011 You may have got a better response if you would have told us what was done to your bike now and then ask what was a good hp upgrade for the riding you do. To answer your question lol yes 100hp out of a 421 is easy but if you are riding real trails then that is a waste of a motor. Quote Link to comment Share on other sites More sharing options...
Coupelx Posted December 28, 2011 Report Share Posted December 28, 2011 man i wonder if i could handle 100hp sounds fun! flower plastics are needed. Quote Link to comment Share on other sites More sharing options...
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