212 hf / schwinn delmar

[skitchfish]

Hey Glennbo,
Do you have any idea what you will be using for forks? I have a shockmaster with
great chrome and terrible paint filed for a 3/8" axle if your interested.
Skitch

 

[The_Aleman]

Now that's more like a proper frame! Looking forward to your progress, but I still think you're going overboard on the engine

 

[professor]

The big HF is a delight for power, but vibrates like crazy.
I rode around a lot today, with the way above normal temp for November. I could ride a lot because I mounted the engine on isolators below and rubber restraints on top. My engine is mounted on a gussetted horizontal plate, I am curious if the guys who mount the engine upright have the same vibe issue.

 

[culvercityclassic]

I have two mounted upright and it does not bother me. I just think anytime you solid mount an engine you are going to feel it.

 

[scotto-]

I have two mounted upright and it does not bother me. I just think anytime you solid mount an engine you are going to feel it.

And it feels like power! I love the big 4-strokes and the vibes don't bother me either.....certainly no worse than your average china girl on a bad day.

 

[foundmydog]

I'd go with the 'verter. You may still need a jackshaft though to get the overall ratio right.

The mythical magical number for small engines is 18.75 to 1

What is the goal for a 212cc monster like this engine?

 

[scotto-]

The mythical magical number for small engines is 18.75 to 1

What is the goal for a 212cc monster like this engine?

Using the GTC (Comet 30) and a 212cc Pred. I find anywhere between 10 and 12:1 to be the range that suits what I need for power and acceleration. That ratio does not include the torque converter's variable ratio of course.

There isn't a specific goal per se, it depends on what you are going to use the bike for with a maximum sized motor such as the 212cc.

 

[darkhawk22]

I wonder if that roadmaster frame is compatible with the tanks that sportscarpat makes for the Schwinn Panthers?

 

[foundmydog]

Did the frame come in yesterday???

Post some pics for us here...

 

[glennbo]

the frame is at the post office will pick up after work tommorrow i missed it thursday

 

[glennbo]

well i finally have my frame and im hoping to mount it something like this

 

[foundmydog]

well i finally have my frame and im hoping to mount it something like this

Hard to judge by the bike not having wheels to have a level line.... but it looks as though the engine would be mounted at a ~ 30 degree angle or so.

Others may chime in with more specific knowledge, but I am not sure if it could function or work well mounted on such an angle being a 4 stroke engine.

 

[wayne z]

The oiling issues have been easily dealt with with these engines, at even more radical engine angles.

 

[foundmydog]

View attachment 42100

The oiling issues have been easily dealt with with these engines, at even more radical engine angles.

Dang.... that has to be close to a 70 degree angle!!!!

 

[foundmydog]

UPDATE us my man, update us!!!

 

[glennbo]

i will have some pictures tommorrow . been working on the motor mount had some issues but i think i have figured it out . all of my previous builds have been 2stroke kits this is been way more challenging and fun!!
glenn

 

[glennbo]

So here it is so far. still working on the engine mounts,but its coming along

 

[wayne z]

Man, that motor fits nice. This is going to be an awesome build! What's with the chain ring on the left side?

 

[skitchfish]

That's all the chicken with the gravy! Flat out awesome Glennbo! I haven't had a problem but are you thinking of beefing up rear dropouts at adjuster screws? No problems with a china girl but it looks like you could dig a trench with that mongo! What do you think it weighs?

 

[skitchfish]

It's really an incredible accomplishment you got that mass in there after seeing your first picture. Congratulations! really, really nice!