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Old 9th February 2008, 01:26   #31
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The great venu sir!!!

Cheers for the project.

Guess the mods here dont know all about you otherwise they would have not shown you as newbie.

Guys the number of posts dont matter to this person. He is the pied piper for two wheeler engines.

Regards
Anto Christy
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Old 9th February 2008, 02:15   #32
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Looks god. i didnt think it could be done to a bike!!!
How much did it cost ya?
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Old 9th February 2008, 03:58   #33
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Quote:
Originally Posted by Sankar View Post
Don't want to go offtopic; but here are some tiny blowers worth a look.

http://www.edstroementerprises.com/jep/BlowerDesign.htm
Some cool mini-stuff at that link!

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Guess the mods here dont know all about you otherwise they would have not shown you as newbie.
Well, everyone started as a newbie at some point of time, including the mods

I'm sure "EH" will be past the newbie status soon enough, and i am sure a lot of people are looking forward to seeing more posts from him.

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Old 9th February 2008, 05:00   #34
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I'll have a Happy Meal please, and Supercharge it!

I dont know who EH is, but it must take some serious knowledge and skill to do that!!! Back in college days, a friend of ours decided he wanted a project vehicle for supercharging and blew up his Avanti Garelli (!!!!!!!!) in the process.

Lead us on to greater things, venugopal - and WELCOME to Team BHP.

Like Shankar says, this opens up some really interesting properties. And I'm sure Shankar is a more than willing bakra.

Last edited by Steeroid : 9th February 2008 at 05:01.
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Old 9th February 2008, 22:26   #35
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plugged a few leaks and the boost went up,check the video.


cheers
enginehacker
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Old 9th February 2008, 22:34   #36
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Originally Posted by Rehaan View Post
Wow!



Absoltely. That was the first word that came out of my mouth too!

Venugopal, did you design the whole thing on CAD yourself and then CNC it out?
How much did you pay for the CNC job if i may ask, or do you have access to a machine?

What kind of ratio does the super spin w.r.t the engine / what is its typical operating rpm?
Have you used bearings? or are the shafts lubricated? how?
What kind of clearances have you achieved?
Does it get warm/hot when run?

Can we have some more pictures!!

cya
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yes designed the lobes myself,it is billet machined.It was done with a lot of help from my good friend srinivas,and a book (maximum boost ,corky bell).it is coupled with 1:1 ratio with the drive from the magnet locking nut.The bearings are lubricated for life and designed for 16000 rpm.Initially the plan was 0.05 mm clearence,but because of a machining error it is 0.15 mm now.Roots is notorious for heating up the air.Its thermodynamic efficiency is 55%.so this is one off.Have a screw type design ready to be mounted in place of the air box.It still has carburettion issues.
cheers
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Old 9th February 2008, 22:38   #37
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Nice, is it machined from billet. Basically looks like a large hydraulic gear pump. Have you seen the Eaton blower with twisted lobes? Whats the difference between the two.
This is roots type and sort of inefficient.I needed it to get data for future designs.
cheers
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Old 9th February 2008, 22:44   #38
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Originally Posted by Steeroid View Post
I'll have a Happy Meal please, and Supercharge it!

I dont know who EH is, but it must take some serious knowledge and skill to do that!!! Back in college days, a friend of ours decided he wanted a project vehicle for supercharging and blew up his Avanti Garelli (!!!!!!!!) in the process.

Lead us on to greater things, venugopal - and WELCOME to Team BHP.

Like Shankar says, this opens up some really interesting properties. And I'm sure Shankar is a more than willing bakra.
It is close to 2 years since i joined up,but it does not matter if i am tagged a newbie or other wise.Been active on xbhp and RDD.SOme of my earlier projects were
1)4 valves on a fiero
2)Modded a fiero to v-twin engine
3)Made a stock trim fiero 200 clocking 144kph on the speed gun
All with the help of my friend srinivas.
cheers
enginehacker
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Old 10th February 2008, 00:48   #39
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Quote:
Originally Posted by venugopal View Post
Have a screw type design ready to be mounted in place of the air box.
Thanks for the replies.
Another newbie Q from me - would it be possible to retain the housing, shafts etc and just replace the roots rotors with the screw type rotors ?

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Originally Posted by venugopal View Post
and a book (maximum boost ,corky bell).
What a super book! I remember seeing it in a bookstore 5years back and i wrote down the ISBN thinking that someday i will use this book.

cya
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Last edited by Rehaan : 10th February 2008 at 00:51.
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Old 10th February 2008, 13:52   #40
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Originally Posted by Rehaan View Post
Thanks for the replies.
Another newbie Q from me - would it be possible to retain the housing, shafts etc and just replace the roots rotors with the screw type rotors ?



What a super book! I remember seeing it in a bookstore 5years back and i wrote down the ISBN thinking that someday i will use this book.

cya
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only the rotors are helical in a screw type. The inlet and outlets are located differently.And involves quite some mods,to match.
cheers
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Old 10th February 2008, 23:49   #41
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nice work, when are you going into production?
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Old 11th February 2008, 01:36   #42
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phenomenal venugopal. Very nicely done. By the way what is the twin cylinder BUSA is talking about ? can you post some pictures of that ?
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Old 11th February 2008, 05:05   #43
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Originally Posted by rrnsss View Post
phenomenal venugopal. Very nicely done. By the way what is the twin cylinder BUSA is talking about ? can you post some pictures of that ?
This is probably not the same one...but theres a thread about something similar here >
http://www.team-bhp.com/forum/motorb...win-fiero.html (V Twin Fiero)

cya
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Old 11th February 2008, 10:36   #44
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Quote:
Originally Posted by Rehaan View Post
This is probably not the same one...but theres a thread about something similar here >
http://www.team-bhp.com/forum/motorb...win-fiero.html (V Twin Fiero)

cya
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That and the only one v-twin(fiero) engine built in india ,was made by me and my pal srinivas.why it is gone into the Limca book of records as India's first .There are lot of pics on xbhp,here is the on team-bhp,
http://www.team-bhp.com/forum/motorb...enfield-2.html (Twin Cylinder Enfield)
cheers
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Old 19th February 2008, 21:52   #45
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machining pics







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