Ive been reading alot of threads on motor upgrades and am waiting to starting planning mine. Thinking of first collecting parts or at least start saving money and then doing the job when i can do it all at once. definatly need some help picking this stuff out. I started to ask some questions on other threads but just thought to start my own.

My bike is an 06 superglide i bought new and now has 81,000 miles. At 50,000 i put in andrews 37 with 4* advance, SE tapered pushrods, hylift lifters, and new SE inner cam bearings and a bub 7 2 to 1. I did the work at home and had it dynoed at a shop close to home. bike has pc3. also the bike still has stock tensioners. the bike also has andrews 30t

other work ive done is last month rebuilt tranny due to the double roller bearing going out. at this time i replaced some stock compensator parts and installed baker manual primary chain tensioner, clutch is stock

i like to do as much work myself as possible to learn how to do it and beacause im really cheap

basically i want to increase displacement, do head work and upgrade/ maintanance in cam chest as needed, id like to reuse as many parts as possible like cams, but could be talked into changing if it was worth it

I realize it is a good idea to check run out at this time. unless it is really bad i am leaning toward just leaving the cases alone. i will most likely continue to use chain drive cams too.

so, my bike has about 3 persanalities. i take about one long trip a year(something like SA to Sturgis), do some Sunday cruisin with the wife, commute some between SA and Austin, but i really like hotroddin around with friends, racin between lights, doin an occasional burn out, and everyonce in a while like to go to test and tune night

i hardly ever am under 2800 rpms and do most of my cruisin around 3000, bike is the most fun to ride over 3500. i like to be able to cruise around 3000 and know that i can downshift and be able to pull steady all the way to red line.

i really dont want to sacrifice ridability or touring dependabily at all, but To be completly honest i want to smoke my friends with thier new 103's.

dont know if it matters but i wiegh about 175

lookin for advice

 

A 2006 Dyna with that 88... I would say do the S&S 106.

 

That would be a stroker kit; hellhound says he wants to "leave the cases alone". However, if he did decided to go the stroker route, he should go all the way to 117". The additional cost to go from 106" to 117" is marginal.

98", headwork and the right cam set, say S&S 585, Andrews 57, TMan 590, will get him where he wants to be.

 

I thought it would be good idea to check runout before starting to buy parts or deciding what route to go. I do want to leave the cases alone unless the runout is really bad, only then would I want look at something bigger than 98"

 

Since you have decided against running gear drive cams which would require runout .003" or less, what will you consider acceptable for chain drives? What will you consider "really bad" as justification for going bigger than 98"?

 

I thought it would be good idea to check runout before starting to buy parts or deciding what route to go. I do want to leave the cases alone unless the runout is really bad, only then would I want look at something bigger than 98"

 

OK, got that but what is "really bad". How bad does runout have to be for you to go the extra troube of pulling the lower unit and sending it off for case and crank work that will probably cost about $1500? That is the question; just wondering if you have thought that through.

 

I haven't thought it through that far. My only goal with the run out is to make sure I don't put a new top end on a worn out bottom end. I don't really want or expect to do any work to the crank. Basically, if I was going to have to address a worn out bottom end then at that point I would bore cases and go bigger.

 

I really don't think you will have a problem. Chain drives can accomodate .005", or more, without issues but once runout gets up in that range you have to start thinking about oil pump life. Just saying that you should probably have an unnacceptable upper limit in mind, otherwise, why measure unless for gear drives. If runout was out real bad, you most likely would have noticed other symptoms with the miles you have on the motor. Good luck with the project.

 

I don't know enough about this to know what an unacceptable amount is. It just seemed like something worth knowing before putti g a couple thousand dollars on top of it. If it is pointless to check it if I'm going to use chain drive cams anyway then I don't want to waste my time or money thinking about it and I will just start shop in for 98" parts.