@ NANO the diesel is another project and in that we need gear box only. well good news is that we found one more designer. as ppl come and read the thread they will join us, to get the designe on paper & CAD, only a team of engineer can handle that, so we have to be patience. till the time i m searching some blueprients on net for v-twin engine. i found some prototype 1/8 scale models. these are realy helpful to understand the machanisam of engine. thanx and keep informing me.

Hi guys.. the project you have started is very interesting and I am curious to know about the development.

BTW I am Chamu from Bangalore studying final year Diploma in Automobile Engineering.

I am more than happy to join this team and would like to lend my hand in this Project. I am not good at designing, but have friends who can help. And I will also share this with my friends and will see who are interested, but I am in.

http://www.leadstampede.com/choppers...ns-Catalog.pdf

I just found this on web, thought might be useful

The real inspiration starts here - - NewsBlog

check these out....

i found this bike being modified in bangalore by a guy called 'sardar'. Couldn't get more details about the project though.

its the same my friend...

hi Chamu and ur welcome to join the team. i would like to know, that can u do cad desing ? all the specification will be avilable for u + u may hv to increase the scale of 1/15 model. i search some on net and will buy some prototype models too.
welcome again and thanx.

@deeapkgowda thanx deepak this is exactly wat is our plan. that guy has done great job. well that engine look ok to me as technically but must lack reliability. our poll suggests us that there should be 57% reliability too.
we will do the same thing as that man has done but with some enginners and cad desing that should look like more reliable and a performer too.
thanx again, that photos will help us a lot and plz if u can contact that man or get his number that will helpful.

okay rahul, now let's be firm..
a bullet, 350 or 500 to be vee-ed to give a 700 or 1000cc with 2 blocks?
or a tata indica's engine on a modified aluminum chassis ??
or a completely brand new engine designed completely from scratch ???

i know a guy who can vee a bullet...
didn't talk to him about the same as he's off to some gaon, his native place..

if you can come down here in mumbai, i know a lot of places where we'll get engines from junkyards of almost everything....

if we borrow a car's engine for example, the cost and the efforts would be comparatively less...
i think as you are searching for cad designer, then the plan would be to make everything brand new
if you can mail me the details, i can see it and can also find a guy who can do it as far as designing is concerned....

let us all know briefly the base first, if possible upload your scales too...

hey Gagan, 700 cc with two heads is the final ok !
News from south i google a man who hs done it in 1998 and he will send me some photos too i will pest them here. hope his desing will hepl us.
the plan is now to desinge and build a new cranckcase with every thing new in it. but we will use the same oil pump of RE 350 to get engine a old look. for the rest the cluch box and gear box will remain same.

now that guy who can vee ! let me talk to him and if he can desing i have got the complet desing in my mind.

the scale i got is from net, search "howell v twin" it is availabe for $ 40. but we don't need it. as it is only for the understanding and study.

the bottomline we will do it from the scratch for the crankcase and adapt rest from the RE.

the basic plan

we search a lot and end up with the result that we must desing a crankcase and everything in side it.... so we need to desing for

1. a crank shaft with two rods and heavy duty bearings & counter weight.
2. Two machanism to push the rods to open and close the volve.
3. machanism to rotate the oil pump.
4. mirror image of head.

the first step would be cad existing RE 350 engine to this will give us the the space and cubic area in which we have to work.
second step is to design crankcase that should fit to the given area.


now !!! in the crankcase !

for the bearings we found that v8 engine rings are strong and if available cheap we will go for that. these are three bearing we required, two for the support the crank shaft and one will in the middle of shaft to attach to (two) piston rods.
(this is "H" type where "I" is the two wall eighter side and " - " is the crankshaft.) for the conveniance in this project we will see the engine from where we are sitting on the bike. so left hand side is the cluch box and right hand side is the oil pump.

the machanisn that push the volve rods is on the right hand side, we have one original machanism of push rods but as our engine has two we have to redesigne complet machanism for the push rods. we will use parts availabe in the market, if necessary we will designe that part.

oo oo
...0

the rough idea of the machanism inside the case on right hand side.
" o " represent the bearing with tooth and a pusher that will push the rod. well there are four of them currosponding to front and rear head of the engine. the big " 0 " is the crankshaft that will drive the above machanism.
and same shaft farther will rotate the oil pump that is on the right hand side and extrime right part of the engine.


this is the detail of a v twin engine, its a jap. but help to understand us.
and small scale v twin.

so friends if u have done the CAD of re 350, or if u can desinge it plz do so and send it to me so that other can work on this project too.
i m expection questions and help from all of u there.

nice explanation..
i hope some cad guy helps out soon...

even i am searching.

Sorry for the late reply..Went to Pune to customer end..

I am kabilan from chennai..working in a brake industry..Did mechanical engineering...I am a vehicle testing engineer..

Deliberating on the reliability of his engine by 'looking' at the pics, and writing off his work as "must lack reliability" , frankly sounds a bit rude and insulting.

..And you are in need of this person's expertise.

Nevertheless Good luck with your project ^ ^

PS: quote:"2. machanism to push the rods to open and close the volve."

Push-rod Valvetrain.. If you are designing the head why not go for OHC Valvetrain?

thanx to correcting me. ( in both cases ).
we are tryin to keep it as simple and cheap as possible. so that the upgradation from u r old 350 to 700cc will not be headaque. plus the spares should available at local market.
well if u can manage a CAD designer that will be helpfull.
thanx again.