I'll take that as a yes.

I was just gonna say " The oil hole is the wrong way" on the thing-a ma-bob

great write up Stan .... makes me wanna go home and tear down my spare XX motor

found the link

On mine I am creating a vacuum in the crankcase but I use the negative air pressure created in the compressor intake. I had to make an adapter to hold the air filter and tapped a hose barb through to the inside of the filter. The other end goes to the PCV fitting on top of the motor. Stopped all that pesky oil smoke at start up too.
Only problem I ran into was I needed a restrictor in the hose as it was pulling too much oil vapor into the compressor at full boost.

Nice....

I love watching your progress...

Makes me wish...

But, Oh now I remeber...

For some reason, I decided to work for a living !

It's work,,,,, just not worth the pay..yeah, I am an idiot.

but,,,,anyway...












take that!!!

Need help installing those cams???

This is interesting.... Tell More, please.

That's where I am at, calculating cr. and the sleeve reinforcing. I don't have the equipment to properly do that type, but I have been considering another way to support it with a receiving groove o-ring. I could do that, if I had a mill....and it would help with the seal also.
Looking at that as a possibility in a few weeks,,, so depending on Brent's ability to pay for the additional work compared to the durability of it. I think he is going to have to make that decision as to the pressures and potential failures.
He has an idea that head gasket failures leave a lot to be desired and they are a direct result of the lack of cylinder support there.

With the valve to piston clearance now and a stock gasket used I wonder where we can go without the plate. We are close, closer than I was expecting without cutting the valve reliefs more. And a thicker head gasket will have a lot less support. I am leaning to a solid copper head gasket, and o-ring. Got any input in that area?

Give Cometic a call direct for their opinion.
Also, a lot of the import car guys are running a lot of boost and they sometimes do a hybrid gasket...o-ring in the block made out of copper with a MLS head gasket.

Where are the coolant jackets?
On closer inspection I notice that this is not attached to the engine case.
Hmmm, Honda?

the top has a plate that goes inbetween the sleeves and the case and is 1/2" thick. and you can't see the rest of the block that is near you in the picture cut off.
It is the honda BB motor, but just the top of the case. So you can see all the way to the cardboard.

The numbers,,,
Bore 3.1875"
Stroke 2.23"
Rod length, 4.31"
piston dish 12cc
head gasket thickness, .060"
diameter 3.188
head 18cc
intake valve opens 40' abdc
7.52407: 1 static compression ratio
45.699 cc total displacement
effective stroke is 2.08"
dynamic compression ratio 6.75 ; 1
dynamic cranking psi 127.24 psi
dynamic boost CR relative to static CR cam timing altitude(1000 foot) and boost of 30 psi is,,,,,20.53:1
volume to pressure index is 25

Copper headgaskets also have a propensity for seeping, partially due to the fact that they need to be retorqued periodically...

As an aside, the MLS headgaskets prefer almost a polished finish on the mating surfaces and Cometic suggests they be assembled dry. I've been using spray Hylomar instead and have had no problems...then again, I'm not running that much boost...

Dean, when you said you went with "a know and proven solution", what was it?



Stan, thanks for all the pics and the updates..great thread and very interesting...Hank

Damn.

Soon 3000 views

I think i might not be the only one following the progress.

Ok got done with it, cams at 105 cl on the intake and 111 cl on the exhaust. Sealed up and ready to ship, other than boxing, or not. primed the oil system so it is going to have a qt of oil in it and the filter. went ahead and stuck some old plugs in it, and pluged all the lines. Made a line to connect the coolant lines and left it so might send it back. fittings are there but moved around just to seal and bagged the rest.

So if you want to have the guy come by, I will leave it like it is, Brent, but if your going to have me ship it, well going to have to build a box and attach to a pallet.

But, I am headed to the OK city area this weekend and I might be able to get it to the Chicago area, if that would help. Otherwise, I might be out during that time.

Kinda anticlimactic ain't it.

Amazing!


LMK if you need help with the cams on Dean's motor!

next week?

Gotcha...
I was thinking about the different headgaskets when I asked and hoped you had a trick setup...

crated and shipped

So, what is the final tally on hours and parts?

Is she in and running?

Sweet thread, Stan.

Love to see an XX motor torn down now and again.

Well look who just pop in now and then. That just made it worth it. Great to see you again, I have missed you. Too cool. How have you been? Things all good?

Hey guys Jay posted!!!!

His name ain't Jay, though "J" is acceptable.


'Sup, J?

Ill be posting pictures with the install this weekend, might not have a dyno till next year when it starts warming up again...but will see

Well, I don't know about that...

Doing well, sfarson and I went and bought VFRs. Fantastic bike, if a bit slow every so often. I suppose I'll buy an XX again, just not right now.

This thread brings back some memories for moi.

Hey, Tim. How's it going?

Brent, looks like your mill was in good hands, a turbo XX must be a force to respect. Kudos.

J.

My claim to fame is rebuilding first gen v4 Honda engines to stock specs. This whole engine project is just plain mouth watering (in a horsepower kind of way). I have been looking at the pictures closely and trying to soak up all of the great information that is front of me. It's just amazing to me what you can do if you just put your mind to it.

Just re-read this thread. Great read.

I wish I could afford to Have Stan build me an XX motor.


Stan, how are you fixed for gloves? let me know if ya need more.

I wish I could afford to build you one too. Cause I should have gloves when I am gone. Should get you to make a box for me and them.LOL.

I forgot to take unboxing pictures, Stan did an excellent job on the crate.. I was expecting some headache getting the engine back in since it was quite troublesome to take out..
but so far so good everything went smooth and im excited to see how much power she makes...

Outstanding work Stan!

Wish I could be there to see/hear it run.

Music, sweet sweet music!

how much?

should be around 400hp @ 20lbs and pump gas..if i run race gas 35lbs should be over 550 but its completely pointless to run that much boost
i get her this weekend she is finally someone complete...possibly a video too

65mm hybrid

Late to the party I know, but since somebody already resurrected it.....

Isn't this the same XX that was in the International Motorcycle Show a couple years ago?

if you are referring to the one at the javitz in 07 then yes

Thought I recognized the pic back on page 1

Have you reinforced you joints, or are you expecting them to pop every time you hit the gas?

Instant wedgie

JB Weld :)

more problems, the turbo was blowing smoke like a fog machine... very embarrassing



Ill have to have redcam chime in on this one, Running to 13500 RPM

Ouch. I have a sneaking suspicion that the wear on the turbo is well beyond a new impeller and bearings!

well I have done a few, now,,, and looks like it might need a little work. but might need some torque too. , Let me know if I can help....

its odd, was still making plenty of boost just seemed to bogg down for a sec then the turbo would come on hard and blow the tire out.. and lots of smoke not from the tire