Hmmmm....tips...

Well, I have certainly learned a few things doing this so a few things over and above doing the cams, which you have done previously.

Once you take the heads off the bike, get some short lengths of plastic pipe about an inch or so long and stick them over the headbolts, then snug the headbolts down to keep the cylinders tight against the cylinder base o-rings.

I think your bike is a '14 or so, so you should probably get replacement breather assemblies (the new stamped ones). Also get new inlet manifold seals while you are at it.

Once you have the breather assemblies off, think about drilling out the oil return holes while you are in there which should result in less blow by from the breathers. I used a 2.5mm drill, but I have seen both 0.089" and 0.125" recommended by others here.

Some tools that will really help with the rear rocker box assembly and the intake manifold are a Yost intake manifold wrench, a long ball ended 1/4" hex socket and two Snap-On "dog bone" torque adaptors (FRDH141 and FRDH161). Also a small 1/4" torque wrench. Finally, a low profile 7/16" socket will also be extremely helpful. Getting proper torque on all the rear rocker box fasteners is a bit of a bugger without these.

Once you get the intake manifold off, you might also consider replacing the two left hand side allen bolts with regular hex head bolts as well. That'll make it easier to put it back together.

There will probably be lots of gasket material left on the cylinder tops that you will need to clean off. I used the plastic razor blades and some ultra fine scotchbrite for this. That mating surface needs to be nice and clean.

You will also need a 12 point, 1/2 socket for the cylinder head bolts. Maybe a breaker bar as well.

Consider fitting a set of "rocker lockers" or similar bushes to the rocker assemblies while you have it all open.

That's about it for now....I need to do my pushrods tomorrow then put the rest of the bike back together and see if she fires up.

Good luck and have fun! It will be interesting to compare numbers when we get both bikes up, running and tuned!

 

That's an extremely thorough job of covering the steps. I take it for granted all the tools you need since I already had most of them and bought the rest over time as I remembered to do so.

 

[QUOTE=rauchman;14766401]You and I both. Internally I'm hoping for around 115hp and similar in tq. May be a pipe dream though.

With the cams alone I was somewhere around 77hp (pre supertrapp 2:1)) and 100.8 tq. But I like to think that Chad's machine was reading low!

 

Awesome thank you so much!! I have a breather system already installed and thankfully the 1/4" torque wrench and ball ends. I will pick up the others that you mention.

You're the second person to mention the rocker lockers. I know they're reasonably priced, so guess I'll get a set as well.

 

Good luck on the build, I have an 07 Bob that I want to take a very similar approach with. Looking at getting 574 cams this winter and bump it up to a 10.5:1 103 with headwork and possibly the 50mm SE tb this time next year. Love the bike by the way, I just convinced the wife that I need those bags!

 

The bags are awesome. Can't believe how easily they come off and go on and how clean the bike is without them (Looks as good as stock). Although I also like the look so much that I simply don't take them off. Also really surprised at how much they hold. Not that I do much traveling with the bike but I have been able to easily fit 3 days worth of clothes plus laptop and work items.

good luck to you as well!

 

Yeah, I need them bad! Haha I'll be checking back on your build, I'm rooting for you to make your 115/115 goal!

 

On the throttle body question, my head flow numbers are similar to Robby's at about 270 cfm on the intake.

I asked the guy that did my heads to measure the flow of the stock (48mm????) throttle body, and it tops out at about 245 cfm, so there is some restriction from the throttle body now and the heads can flow more air than the throttle body. How noticeable this would be in real life as opposed to on the flow bench is a different question as there are so many variables.

I am currently thinking about where to go with a new throttle body, what size etc. Currently torn between HPI and the SE 58mm versions - although I think 58mm one might actually be a bit too big and decrease velocity.

 

Yeah - they're like $20, so may as well just stick them in while you have the thing apart.

On the torque adaptors, they are FRDH141 (7/16”) and FRDH161 (1/2”) - I got the part number wrong in the earlier post.

 

cool thanks!