Topic: 836 dragstrip times

[dusterdude]

What ya got?

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[dragracer]

What ya got?

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I can't help you with that answer.  Hopefully you'll get a lot of good feedback because I'm curious myself for both no bar and wheelie bar with slick combinations.

[Don R]

 I've been curious about my drag bikes. One PO passed away and his multiple ex-wives had already disposed of his photos and momentos. The other guy isn't remembering a lot, I noticed letting him talk was better than asking things. Three bikes, not one time slip or photo.
 The big 4 express had run within .02 of his NHRA class record, he said he was asked if he was willing to do a teardown if he got a record. Still don't know the class, date or ET.

[dusterdude]

Lets hope we get some good info

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[NitroHunter]

Not a racer but 836 was my first time going down the strip. I rode my street bike out to the track and made some 12.4 laps on my RC 836 "30-30" kit bike. You can find that kit in the early catalogs, and it was affordable on my Navy E-3 salary - if you were careful and I was motivated. I had that little RC 240 cam, RC header, and a 16" rear wheel so I could touch the ground. Got 50+mpg, would pull wheelies, and most importantly, would out stop-light your big block anything...

[dusterdude]

Cool

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[dragracer]

Wilbur is the most recent racer on this forum to run an 836 but he had flat top cruzin images pistons under a k8 head. I'm not certain if Bill had an 836 or 900(+) cc engine in Cobra girl when he first started racing again.  He made solid low 11 second passes if I recall correctly. 

[dusterdude]

Thanks frank

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[madmtnmotors]

Simple specs:
>78' CB750K motor w/stronger valve springs and retainers
>Flat top 65mm C.I. pistons
>CycleX CX-1 cam
>16/52 sprockets
>79' swingarm (+1-1/2")
>Dyna S ignition w/Dyna 3ohm coils
>MAC 4into1 exhaust
>K8 PD carbs w/stock jetting and two washers under needle

I figure the flat top pistons probably keep the compression ratio near stock with the larger cc combustion chamber of the K8 head. My best pass was 12.9 at around 101mph

[dusterdude]

Groovy,thanks

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[dragracer]

Groovy,thanks

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What's going through your mind now Mark?? Got a build in the works?? Nows the time my friend because we aren't getting any younger 🤣

[dusterdude]

Tis true frank,yes i am,not sure which way im going with it.i can sink a ton of money into my spare 750 motor and maybe run 11's or take my 929 motor and run 10"s but,here's the conundrum.the 750 has class and soul and is a cool project.the 929 is a souless clump of metal.oh well,decisions,decisions.


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[dragracer]

Tis true frank,yes i am,not sure which way im going with it.i can sink a ton of money into my spare 750 motor and maybe run 11's or take my 929 motor and run 10"s but,here's the conundrum.the 750 has class and soul and is a cool project.the 929 is a souless clump of metal.oh well,decisions,decisions.


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Just come on and follow us down the rabbit hole. Going fast is overrated when turning on a win light is the primary goal. Build a mild 836 and join in on the fun.

[dusterdude]

Lol,that might still happen.im going to ponder it for a while

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[dusterdude]

Frank,we'll have to have a meeting of the disciples at sgmp

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[dragracer]

Frank,we'll have to have a meeting of the disciples at sgmp

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Bill is the anointed one. We can come together at his trailer. 😁

By the way, if you've absorbed anything that I've ever posted regarding building an SOHC for drag racing purposes,  you've probably noticed that I place more emphasis on the chassis setup and less on a high performance engine build. You can  throw a lot of money  at putting together  a high horsepower engine and then put it into a poorly prepped chassis and get disappointing results versus concentrating on a bike thats specifically  designed to launch hard and be easier to control by the rider.  Spend time on the rolling stock first. You won't regret it in the end.

[Don R]

 On the Facebook "Honda Dragbikes" page Dale Walker posted pics of his Honda dragbikes and when I asked, he updated the pics with ET's. 
 I posted a link, maybe he will stop by.

[dusterdude]

Thanks guys,great info

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[sohc boy]

Have run a best of 10.78 back in the 90's,with my 836.pump gas ,stock frame , 5.5x 18 slick ,wheelie bars

[dusterdude]

Wow!!,i like that

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[sohc boy]

     Thanks Dusterdude , i still have it , getting a rebuild last few years , much bigger engine,  taking a while ............. but i'll get there

[dusterdude]

Good luck with it

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[Leino]

Well... I'll give it a go once I get the bike sorted and running. Not sure I remember how to do it anymore but we will see 

[dusterdude]

I hear its like riding a bicycle

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[Leino]

I hear its like riding a bicycle

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So they say. Never done it with a CB so it's new territory for me but if I race my bike even once I get a big bottle of vodka from my friend who said I wouldn't dare