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Picking up new ride Tuesday and at very least have a stage 2 kit planned for it in the near future, theres just so much more umph! to be had by changing cams. All the catalogs show the kits as being 96" inchers being bumped up to 103" / but I already have the 103 motor so jugs and pistons should not be needed.... right ? It would seem that a stage 1 plus the cost of new cams would yield me a stage 2.... right.
Stage 2 nets me 95 HP and 80 torque / 110" big bore only gets me 100 HP and 80 torque plus requires case boring according to screamin eagles catalog. Seems like it would be alot more $$ spent for minimal gain. If I stayed with 103 bore and just done cams and breather I would have about the same and about 2 grand left
I just did the HD SE Stage II kit on my new RG. You will see it in the Screaming Eagle catalog, its about an $750 kit, comes with 254e cams, Race Tuner and all the gaskets. I put this on along with the Ventilator air cleaner and I am very happy with the results.
I considered the 110 kit, but didnt think it was worth all the extra hassle and expense. The 103 responds very well with a simple cam and air flow change.
You need to do some more research before you do any of this. Search this forum for some pretty good insight. Your understanding of the stage 1 or 2 are not right and you shouldn't spend 1000's of dollars for something that you dont understand.... IMO. Do your research and spend wisely. You can save a lot of money and get the same, if not better, quality parts by staying out of that screaming eagle catalog. I would go with a stage 1, (intake, tuner, exhaust) first and see how you like that. You may be completely satisfied. That 103 is a hell of a motor. Congrats on your new ride!
Last edited by WireDawg77; Jun 24, 2012 at 08:50 AM.
but I already have the 103 motor so jugs and pistons should not be needed.... right ?
It depends on the CAM your are thinking and/or your CAM choice will be limited by the piston architecture....specifically the compression ratio. As an example, a 255 CAM is a nice CAM to bring in power earlier in the RPM range. BUT, if you have gimmick's to increase compression such as thin gaskets, shaved heads, or milled cylinder bases...then you need to check into the compression ration factors of the CAM choice. As an example, a 255 CAM is not a good choice for 10.X:1 compression motors. A 257 CAM is. A 257 CAM will bring in power a little later of the RPM range and hold the duration a lot longer than a 255 CAM. However, a 257 CAM must have 10.X:1 compression. Easiest way to do that is a piston change. Replacing the stock flat top pistons with forged high compression pistons. So basically, it's a total view of where you are trying to get to. If you keep your flat top pistons to save costs, then limit your CAM choice based on your current compression ratio, in the end , it woill cost you more money if you want more power since as soon as you shave your heads, thin out the gaskets, mill your clyinder bases, you might be sitting at looking at another CAM and piston change.
CaptainIron62, thats pretty much what I was thinkin right now. Obviously gonna log some miles first and maybe do the kit over the winter if I can wait that long. I know this bike is gonna seem like a turd compared to the Vmax I came off of but it will no doubt be a nice ride with bells and whistles.
you would be correct in resisting the impulse to compare.
you can make your new Harley as fast as a Vmax- but it will cost the equivalent of 2 Vmaxs + the Harley to get there.
sit back and enjoy the ride.
if you need to go fast, get a 2nd bike which is designed to do just that.
it would be less expensive in the end
many of the common mods we do violate the 2 year factory warranty and we have to be prepared to absorb any costs which might other wise be a warranty claim
Mike
Last edited by mkguitar; Jun 24, 2012 at 11:33 AM.
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