Topic: Its time to build a 836 Turbo

[Bill/BentON Racing]

3.50X18??? It'll never hook!!!,but it will smoke and spin and put on a show!!! Bill

[dragracer]

Well as soon as its broken in and off the dyno I might get Bill Benton or Drag-racer Frank some seat time at the track
just to see what its capable of doing in the quarter mile. But this is a stock frame so the wheel base is not what you would
call turbo friendly and a 350/18 rear tire.................


but it will be used as a street bike and should be A LOT of fun

Jim

Hey Bill, did Jim just designate us as his official, turbo test dummies?? Hahaha.

[Jim F]

Well Frank I hope you don't think that of your self after the first run..................(What did I get my self in to)
This will not be a bike for new riders................just old and wise...............like us old farts that still play with motorcycles

Jim

[dragracer]

Well Frank I hope you don't think that of your self after the first run..................(What did I get my self in to)
This will not be a bike for new riders................just old and wise...............like us old farts that still play with motorcycles

Jim

More like older with an incurable addiction!!! :-)

[MRieck]

Jim's Kibblewhite parts arrived yesterday and the head will go to the machine shop Friday. The OEM parts will be here today.

[Bill/BentON Racing]

Mike,you gonna inscribe a"Go Pats" inside the head?
Maybe Falcons vs Pats next year! Jim's build is so cool.

[gnarlycharlie4u]

Jim's Kibblewhite parts arrived yesterday and the head will go to the machine shop Friday. The OEM parts will be here today.

this makes me happy in the pants.

[Sam Green Racing]

and makes Jim unhappy in the wallet. 

Sam.

[BLUE71TURBO]

 JIM,  I didn't read or see anywhere on what yer doing to the cylinders.  Are you going to have the cylinder " O RINGED " ?   Also you definitly need to run a copper head gasket.  Believe me, i know.     

[Jim F]

to be honest I am not sure what to do about this
whether it be "O" ringed or a copper gaskets or one of the multi-layered systems.

Jim

[Bill/BentON Racing]

Go with Mike's recomendation,not sure on todays stuff,but old days copper a must,BLUE71TURBO voice of experience,got hit with pcs of John Sands copper headgasket in the leg back in the late 70's.......too much of SOMETHING that day!Std gaskets had no chance! Bill

[BLUE71TURBO]

to be honest I am not sure what to do about this
whether it be "O" ringed or a copper gaskets or one of the multi-layered systems.

Jim

   You definitly want to have your cylinders " O " ringed and use a copper head gasket.  Anything else is a total waste of time and $$$ .  I still have 2 burnt pistons on the shelf to remind me of what happens when you take short cuts where you shouldn't .   

[Sam Green Racing]

Offerings to the Gods of Speed anyone know who they were, no prizes for the winner

Sam.

[dragracer]

O-ring and copper head gaskets for sure!!!!!!!!!!!!!!!! Anything that increases cyclinder pressure will test a standard gasket or even one of those MLS gaskets. The O=ring will bite into the copper head gasket and create a more substansial seal. Remember, an internal combustion engine is nothing more than a pump, what gets forced in, will find a path of lease resistance to get out. Seal it, seal it, seal it.  If we can blow a head gasket using nitrous injection, imagine what happens on boost. Be safe and either o=ring the block or the head or both.

[MRieck]

to be honest I am not sure what to do about this
whether it be "O" ringed or a copper gaskets or one of the multi-layered systems.

Jim

   You definitly want to have your cylinders " O " ringed and use a copper head gasket.  Anything else is a total waste of time and $$$ .  I still have 2 burnt pistons on the shelf to remind me of what happens when you take short cuts where you shouldn't .   

Did you, and have you, ever used an MLS head gasket?

[MRieck]

O-ring and copper head gaskets for sure!!!!!!!!!!!!!!!! Anything that increases cyclinder pressure will test a standard gasket or even one of those MLS gaskets. The O=ring will bite into the copper head gasket and create a more substansial seal. Remember, an internal combustion engine is nothing more than a pump, what gets forced in, will find a path of lease resistance to get out. Seal it, seal it, seal it.  If we can blow a head gasket using nitrous injection, imagine what happens on boost. Be safe and either o=ring the block or the head or both.

Frank...it's not a pro mod or Funnybike brother.

[BLUE71TURBO]

to be honest I am not sure what to do about this
whether it be "O" ringed or a copper gaskets or one of the multi-layered systems.

Jim

   You definitly want to have your cylinders " O " ringed and use a copper head gasket.  Anything else is a total waste of time and $$$ .  I still have 2 burnt pistons on the shelf to remind me of what happens when you take short cuts where you shouldn't .   

Did you, and have you, ever used an MLS head gasket?

               Nope.  I had the cylinders O ringed and used a copper head gasket and havn't had a problem since.
 and that's over 20 years ago with alot of 20lbs boost runs.  I probably hext my own a$$ now !      LOL !   

[dragracer]

O-ring and copper head gaskets for sure!!!!!!!!!!!!!!!! Anything that increases cyclinder pressure will test a standard gasket or even one of those MLS gaskets. The O=ring will bite into the copper head gasket and create a more substansial seal. Remember, an internal combustion engine is nothing more than a pump, what gets forced in, will find a path of lease resistance to get out. Seal it, seal it, seal it.  If we can blow a head gasket using nitrous injection, imagine what happens on boost. Be safe and either o=ring the block or the head or both.

Frank...it's not a pro mod or Funnybike brother.

Ok Mike, you know where my brain is half the time. Lol.

I looked at a set of pistons today and was like, what the heck little motor does this go into- then i realized they were stock 750 pistons- hahaha. Been messing with big race motors way to much lately.

[Bill/BentON Racing]

Jim,like this ,but copper!

[dragracer]

I use a copper base gasket and head gasket on my SOHC motor and the block is o-ringed.

We all have opinions but we must defer to the motor builder's expertise on this one. My day time job is to manage a municipal drinking water company. My other job is to transport my granddaughter to school each morning and pick her up from daycare in the evening.  Not only that, Jim is paying the bills here-lol.

[Jim F]

every ones opinion is welcome in my house..............

I just don't keep beer in the fridge

and there well be opinions about that too...............

and that too is appreciated............

Jim

[dragracer]

Time to sit back, read and learn. Opinion section closed- lol.

Just let me know when its my turn to ride the bull!!! Bill out first.

[NitroHunter]

I ran my little 736cc turbo motor with an accutronix copper head gasket, no sleeve O rings, but it had cylinder studs and good nuts. I cranked it up to 30+ lbs of boost several times, but normal was 15psi.
I didn't encounter any gasket issues, but my cylinder pressure wasn't extreme either, as I had those stock pistons way down in the hole. 5 base gaskets will lower the static compression in a hurry. I also ran good gas and was pretty conservative with the timing. One thing I had learned by that time - don't rattle the motor.
This motor was built from spare / leftover parts. If I had been serious I'd have O ringed the sleeves like my big motors had, but remember this was bonzaid together with most of the parts coming from scrap motors. That head gasket was the only purpose - built piece for this combination.
I melted a new set of Arias pistons due to a failing little pos fuel pump so I supersized the petcock and got a Holley red pump and regulator, and presto no more problems.

[imabass]

Good info here.  I too am planning a 836 turbo but I am going to add fuel injection.  I am currently searching for the proper size throttle body and I was thinking 40mm-45mm was the correct size.  Sounds like you are running a 42mm carb? 

Mine is strictly for street use in my aftermarket chopper frame.  Planning on using 8-10 pounds of boost.  I currently have a 10:1 piston for a K and plan to use the late F head and possibly the DOHC rods to get a low static compression for the boost.  I am not looking to push this little engine past its limits.  Just a little extra HP and a lot extra in the cool department.  I want a reliable machine that I can ride!   

Can you take some closeups of the intake setup.  It looks similar to what was brewing in my head that I plan to make.  What boots are you using to connect to the head?

[Bill/BentON Racing]

Jim,found this in the cave!


Gotta go somewhere,what did it go on originally? Ought to be easy for Jon Weeks! Bill