mxthunder

This was one of my favorite color schemes. Would love to see more pics.

I think I would have to go with Arlan. Heard nothing but great things about him and saw what kinda magic he could work on my buddies Sphinx. Is it safe to say that a proper build 4 mil on race gas with +4 timing, carbs and pipes and other supporting mods could make 75HP?

Is the stuff from motorcityatv any good? http://www.motorcityatv.com/parts-store/engines-components/new-yamaha-banshee-crank-crankshaft-4mm-stroker-115mm-long-rod-welded-balanced/ Could Arlen port a serval and get more power out of it? How much power is there to be gained from a 4 mil setup running lets say 22cc domes on pump vs 18 or 19cc domes on race gas?

I dont really want it to look stock to be a sleeper, I just like the way a lot of the OEM parts look better. Headlights, plastics, hubs, engine side covers, etc. I like the look of an OEM bike with bolt on goodies. I suppose my budget for an engine excluding pipes and the small stuff would be around $1500. The serval looks like a good option, I see a few retailers have them but I cant find any info on then on cpindinc.com What is a good price to pay for a welded and trued + 4 mil crank? Then I could just send my cylinders and head to LED to have them modified and ported for the 4 mil, and find a set of pistons somewhere. 795's still the best option to run?

Wow that stealth head is awesome!! I will buy one of those for sure! Will that work with a 4 mil stroker or would I have to get specal domes to put in it? As far as the sphynx goes.. I am only approx 2 bike lengths behind it on the raptor 700 I have been riding which is all stock except a slip on pipe. i can beat him top speed for sure, but we have to slow down before i can even click 5th and he is already tapped out. (GNCC bike) so i dont know how much of a challenge it will be with a banshee either. I expect to spend 12-1500 on the motor excluding pipes.I dont plan on doing an extended swinger at all, but A-Arms and shocks all around. The Vito's kit keeps looking better and better. 397cc... they advertise 90HP on race gas, so even if its really only 75-80 that would be perfect.

Well its that time when I get myself a banshee. I have owned almost every other sport quad including YFZ450, Raptor 700, Z400, warrior, blaster, etc. I dont really care about the MX thing any more, I have two kids and dont want to get hurt. I just want to do some aggressive trail riding, drag racing and duning. Most of my riding will be done in farm lands of Ohio - rolling hills, trails, logging roads, flat flields. I will still hit the occasional MX track, and some trips to silver lake. I have been doing a ton of searchin on here and all over the web regarding what mods to do when I get a banshee. I have a couple of questions now, so that I know how to weight certain mods while I am shopping. My goal is to have 80+ HP at the rear wheel. I need to be able to beat a ported sphynx 350R at the very least. Of course I am thinking ported long rod 4 mil setup, but started thinking that may not be enough. What would be the difference between going with a 4 mil and a 7 mil setup as far as supporting mods goes. Cases would need to be trenched? Could I still run stock (modified) cylinders? Would things like a set of carbs become a requirement? Would your run of the mill FMF/ Pro Circuit pipes become a bottleneck? How much difference is there between the two as far as power goes? When shopping for domes, at what cylinder bore size are "big bore" domes required? I would like the engine to still look very much like OEM, so I have some questions regarding a head setup. Can a stock head be modified to have different dome sizes? Would a stock head work with a 7 mil setup? Could I potentially get two stock heads, and have one modified to be a race gas setup, and leave the other one more stock for when I dont want to run race gas, and just swap the heads and replace the gasket? I hear that some say that a modified and fixed up stock head is just as good as a cool head. I was looking to start things off by getting a billet impeller and billet impeller drive gear from mull engineering. I would also like to get an aftermarket radiator (those $65 ebay ones any good?) Anyone have any thoughts on Vito's 4 mil kit? http://www.vitosperformance.com/atv_parts/product.php?productid=11502&cat=439&page=1 I guess my ideal setup would be: pipes, +4 timing, at least ported cylinders, the cooling mods I mentioned above, tors removal, pod airfilters, modded head. What HP #'s could I expect out of a setup like that? When I was in the YFZ450 world, the OEM YZ450F dirt bike clutch was the best there was, the barnett kids, etc were not as good as OEM. Is the same true for banshees? Is there a "ideal" setup for a mild banshee build? Thanks for any and all input