Hello gents,
So I have wanted to put together a bike to go race AHRMA at willow springs for the annual April race. I live reasonably close ( 2hrs) to Willow, and the idea was just pushed down the priority list by other things and projects. I hooked up with a racer the other day and he inspired me to make this a priority again! He generously offered to help me with set up and parts suggestions.
So here is the goal; build a compliant bike in 90 days, go to track school the day before, and race on April 26th.
I have about 80% of what I need in the garage already, and I will borrowing some parts from my daily rider (rear sets, works shocks, ignition, battery), I already put in an order to Boretech for my pistons, KA slipper, valve guides and gasket set.
Tonight I will start the frame prep by grinding off all the stamped lips that are spot welded so that I can full seam weld the frame. ( pics to follow)
tonight I was able to slip into the garage for about an hour and a half, did some grinding and beating, still a few more hours to go ; maybe on Sunday. Tonight I was able to cut off the center stand lugs, grind off the back bone seam , remove the foot peg bar brackets and trim down the tail section a bit.
My boretech order has not shown up yet; maybe tomorrow. I called and talked to Matt at Racetech , and Mike at Vintage brake, have been emailing back and forth with Buff at THR also, going to buy the lowered 5th gear tomorrow. I hope to have the frame trimmed down this weekend
here are a few pics
Here are the plans for the bike..
I will build the motor to the following spec:
motor-
65mm pistons from boretech
NOS head, new valves and guides, head to be ported and port matched
early fat cam with stock springs
lowered 5th gear from THR
KA slipper
tsubaki cam chain
boretech ignition
mikuni VM30 carbs
Ricks stator
barnett clutch
I will take pics of the engine build and share
thanks
Chad
you would think that in this age with all the information on the internet; especially since there are a ton of people who swap front ends; that there would be a reference for front end measurements..
1. fork tube size
2. overall fork length
3. fork to stem offset
4. fork spread
5. axle size
I guess all of the internet is devoted to advertising and porn and there must not be enough space left to put something together like this! if anyone knows of anything let me know
thanks
Chad
Spent another hour in the garage tonight, "metric mason" was over for dinner, so he helped with the grinding and chopping tonight! Another pile of metal dust and cut off metal bits, frame is going to welder later tonight , he is going to start the full seam welding tomorrow.
frame is done being de-tabbed; off to the welder today for full seam welding. My new pistons, bronze valve guides, KA slipper and gasket kit showed up on saturday. I am still waiting for my THR lower 5th gear so that I can start the assembly of the bottom end. I dropped the cylinder/pistons and head off to the machinist saturday and the cylinder will be ready this afternoon. I am getting a port and polish job for the first time; cant wait to see how that feels on the throttle!
a quick update,
I was planning on building a mild yet reliable motor for this bike. Not any more... i have been talked into going as far as the budget will allow, so here are the parts I have ordered
THR- PVL ignition
THR- lowered 5th gear
Boretech- megacycle X5 cam
Boretech - timeable cam gear
I will be doing a full race valve train but have yet to decide which and where to buy..
I spent a few hours in the garage last night and the day before getting the cases ready for assembly. This set of cases was from a 69 CL350 , and I previously had them hot tank cleaned and then blasted. I removed the head studs and have tapped all of the threaded holes. You wouldnt believe how much gunk can come out of the threaded holes!!! the cases are sparkly clean (you think) and then pure black coming out of the holes!! haha
I am happy to know these cases are now truly clean and nothing will contaminate the motor.
pictures to follow tonight!
Outobie
thank you for the reply, I believe we are on the same page.
I will be running 67.5 pistons, either the THR or Team Hansen
the valve train will be the 5mm Kibblewhites, still shopping them.
I had previously dropped off a head with new valves, and a cylinder with new 65mm pistons - my machinist is finishing up this work, and now it will go on my bone stock 68 when it needs a rebuild.
I have already dropped another cylinder and will drop another head to be used for the race build (+1 on intake valve/ kibblewhite 5mm full valve train/ KA cut/67.5 bore/ port head)
Ok, just got the off phone with Kelly at Boretech, my Megacycle X5cam and timeable cam gear are shippping tomorrow. She also told me that Kibblewhite is direct shipping me 5mm stainless valvetrain tomorrow!! It is going to be like christmas all over again!!!
so supposedly my frame is going to be done today and delivered, if so I will take some pics of the additional welding. This is just first round of fabrication, next will be hoop at rear, a couple new tabs including one up front for the Ohlins steering damper; and a tab for the tach/ number plate frame.
outobie,
yes I will be putting in (2) braces from the back bone to the rear triangle (each side)
I thought about putting in a tube under the motor side to side, but the racers I asked didnt seem to think it would add much. Thoughts?
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