Overboost Posted June 13, 2009 Report Share Posted June 13, 2009 or more specificly, if I was to do a 4 mil stroke, what is the bad things that are common? I heard it eats top ends and you have to rebuild them on a constant basis. do the pros out weigh the cons? is it really worth the extra 1G to go that route? or should I just do a GSXR 1000 motor swap and be done with it? Quote Link to comment Share on other sites More sharing options...
locogato11283 Posted June 13, 2009 Report Share Posted June 13, 2009 or more specificly, if I was to do a 4 mil stroke, what is the bad things that are common? every engine can and will have its problems. to say a 4mm is worse off than any other motor is a little off. a well maintained motor thats put together right can last years. I heard it eats top ends and you have to rebuild them on a constant basis. thats stupid. whoever told you that should be kicked in the balls. do the pros out weigh the cons? yes. more power = more fun. 4mm motors can be very reliable. is it really worth the extra 1G to go that route? by the time you buy a crank, proper porting, carbs, pipes, intakes etc. youre looking at over 1g. or should I just do a GSXR 1000 motor swap and be done with it? that motor wont fit for shit in a banshee frame. stick to the banshee motor. itll be faster and a lot less hassle. Quote Link to comment Share on other sites More sharing options...
robert0762 Posted June 13, 2009 Report Share Posted June 13, 2009 If you call more power any way u want it a downside then thats it Quote Link to comment Share on other sites More sharing options...
sheerider1026 Posted June 13, 2009 Report Share Posted June 13, 2009 no downside besides the cost.. Quote Link to comment Share on other sites More sharing options...
RIPPEN Posted June 13, 2009 Report Share Posted June 13, 2009 If I find a downside besides the initial cost Ill let you know. Havn't found one in the couple years that I have had it.. RIPPEN Quote Link to comment Share on other sites More sharing options...
Overboost Posted June 13, 2009 Author Report Share Posted June 13, 2009 http://cgi.ebay.com/ebaymotors/YAMAHA-BANS...634950QQptZATVs GSXR motor will fit in a banshee, but the cost seems to be phenomenal. I was thinking if I do ported cylinders and rebuild a top end, why not just go 4MM stroker? I guess at that point, I need to check into bigger carbs and jetting. what about my pipes? will my pro circuits still run right? I dont want to get too crazy on the setup, it is just now the speed bug has bit me I want more.... Quote Link to comment Share on other sites More sharing options...
Scott M Posted June 13, 2009 Report Share Posted June 13, 2009 http://cgi.ebay.com/ebaymotors/YAMAHA-BANS...634950QQptZATVs GSXR motor will fit in a banshee, but the cost seems to be phenomenal. I was thinking if I do ported cylinders and rebuild a top end, why not just go 4MM stroker? I guess at that point, I need to check into bigger carbs and jetting. what about my pipes? will my pro circuits still run right? I dont want to get too crazy on the setup, it is just now the speed bug has bit me I want more.... just as a rule of thumB: Stroker for torque/hill climbs, BigBore for power everywhere. Both for Ludacris Speed. Loss of bottom-end power for both is debatable, however if you have 10+ hp gain on mid and top who cares about 2-3hp on low end..? If money is an issue you want to ask yourself: what is broken? If the crank needs to be rebuilt anyways then your spending 1/2 the $ anyways, midas well go for it. If your top end needs refresh then go for the porting. If your sleeve is toast/on last bore then go for big bore. My advice is do 1 at a time so you can feel the difference of each. Best non-bolt on power is good porting. Start there if you already have pipes, filter. timing, gearing, tires etc. Quote Link to comment Share on other sites More sharing options...
ned Posted June 14, 2009 Report Share Posted June 14, 2009 biggest downside would be...NO TRACTION. ahahaha, but seriously i cant wait to get my 400cc motor back in the frame and rip. Quote Link to comment Share on other sites More sharing options...
brugal Posted June 14, 2009 Report Share Posted June 14, 2009 a 4 mil stroke, what is the bad things that are common? Youll have to change brake pads sooner :geek: Quote Link to comment Share on other sites More sharing options...
vulvafan537240 Posted June 14, 2009 Report Share Posted June 14, 2009 start doing curls so you can hang on better Quote Link to comment Share on other sites More sharing options...
GrMeyer Posted June 15, 2009 Report Share Posted June 15, 2009 The only down side I can see is GAS because you will want to keep to WOT all the time Quote Link to comment Share on other sites More sharing options...
sheefreak Posted June 15, 2009 Report Share Posted June 15, 2009 In a very short time you will want to build a bigger stroker motor.... Quote Link to comment Share on other sites More sharing options...
VegasJeff Posted June 15, 2009 Report Share Posted June 15, 2009 In a very short time you will want to build a bigger stroker motor.... white knuckles and longer arms :biggrin: Quote Link to comment Share on other sites More sharing options...
AWR Posted June 15, 2009 Report Share Posted June 15, 2009 chains and sprockets wear out faster and you will piss off some of your friends with the added roost. Quote Link to comment Share on other sites More sharing options...
DallasGDub Posted June 15, 2009 Report Share Posted June 15, 2009 biggest downside would be...NO TRACTION. This is true!!! 4 mills have tons of power. None of that does any good if you can Quote Link to comment Share on other sites More sharing options...
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