LocostUSA.com

Learning how to build Lotus Seven replicas...together!
It is currently July 9, 2020, 5:38 pm

All times are UTC - 5 hours [ DST ]




Post new topic Reply to topic  [ 160 posts ]  Go to page Previous  1 ... 7, 8, 9, 10, 11
Author Message
 Post subject: Re: marafonets design
PostPosted: February 19, 2020, 12:05 am 
Offline

Joined: September 24, 2013, 4:06 pm
Posts: 786
Location: Charlotte, NC
Those are serious looking brakes! Check the math to be sure your master cylinder is the right size for the new calipers. Good luck this season.

_________________
Gavin

My build: http://www.locostusa.com/forums/viewtopic.php?f=35&t=16005


Top
 Profile  
Reply with quote  
 Post subject: Re: marafonets design
PostPosted: February 19, 2020, 11:29 pm 
Offline
User avatar

Joined: August 24, 2010, 12:59 pm
Posts: 111
Location: Irkutsk, Russia
Mnot wrote:
Those are serious looking brakes! Check the math to be sure your master cylinder is the right size for the new calipers. Good luck this season.


Of course. I started with math. I will not say that it is ideal, but I decided to add a coefficient of friction due to the pads.

_________________
Do not be ashamed not to know, it's shameful not to know and not ask

"And even if they say " Yes, let them talk!
But no one - no one dies in vain,
This is better than vodka and from colds.
Others will come, replacing comfort
At the risk and inordinate work,-
Will you not passed route." V.S. Vysotsky


Top
 Profile  
Reply with quote  
 Post subject: Re: marafonets design
PostPosted: February 19, 2020, 11:43 pm 
Offline
User avatar

Joined: August 24, 2010, 12:59 pm
Posts: 111
Location: Irkutsk, Russia
Today I wanted to talk about the new exhaust manifold. The fact is that the first one was simply redone from the store; I did not like that it had short primary pipes of unequal length. By the configuration of the motor, it simply did not suit me. So I decided to redo it. For a long time I worked on this issue from the moment of conception to execution more than a year passed. Started by calculating the desired pipe length. Then the question arose of what to do? I did not want to do like all of the water outlets. There was a stainless steel version for the stair railing, but also refused. And on the Internet, I found a company that sells various components for exhaust systems. And the price is not expensive (made in China). I ordered them 6 bends for 180 degrees and so on the little things. When they arrived, I measured them and began to design a collector in 3D. It was designed option 3 and then chose one and redid it again 5. Then he decided that everything could not be taken into account, and if that I would adjust in place. But surprisingly, everything was assembled according to the latest version. To begin with, I printed the drawings of the pipe connection in one plane, cut them and applied them to the drawings. Then he took away the TIG welding. Yes, of course, they led a little. Then I just cut the ends in place and everything fell.
The final welding was already in place, I had to invite the TIG welder to my garage. In my opinion, it turned out not even badly. Now it remains to wrap with a thermal tape, cut the sidewall and assemble everything back.

Image

Image

Image

Image

Image

Image

Image

Image

Image

Image

_________________
Do not be ashamed not to know, it's shameful not to know and not ask

"And even if they say " Yes, let them talk!
But no one - no one dies in vain,
This is better than vodka and from colds.
Others will come, replacing comfort
At the risk and inordinate work,-
Will you not passed route." V.S. Vysotsky


Last edited by marafonets on February 20, 2020, 8:12 pm, edited 1 time in total.

Top
 Profile  
Reply with quote  
 Post subject: Re: marafonets design
PostPosted: February 20, 2020, 11:03 am 
Offline
User avatar

Joined: October 24, 2008, 2:13 pm
Posts: 4160
Location: Carlsbad, California, USA
Nice job on a very complicated project. What program did you use for the 3D layout?

Cheers,

_________________
Damn! That front slip angle is way too large and the Ackerman is just a muddle.

Build Log: viewtopic.php?f=35&t=5886


Top
 Profile  
Reply with quote  
 Post subject: Re: marafonets design
PostPosted: February 20, 2020, 11:59 am 
Offline
User avatar

Joined: March 30, 2011, 7:18 am
Posts: 1587
Location: central Arkansas
marafonets wrote:
Image


I just wanted to note that's one of the nicest steering arm conversions I've ever seen. Simple, cheap, strong, and adjustable! Good brakes, too...


Top
 Profile  
Reply with quote  
 Post subject: Re: marafonets design
PostPosted: February 20, 2020, 8:48 pm 
Offline
User avatar

Joined: August 24, 2010, 12:59 pm
Posts: 111
Location: Irkutsk, Russia
Lonnie-S wrote:
Nice job on a very complicated project. What program did you use for the 3D layout?

Cheers,


Thanks a lot. The program I use Unigraphics NX

TRX wrote:
I just wanted to note that's one of the nicest steering arm conversions I've ever seen. Simple, cheap, strong, and adjustable! Good brakes, too...



Thank you very much I am very pleased

_________________
Do not be ashamed not to know, it's shameful not to know and not ask

"And even if they say " Yes, let them talk!
But no one - no one dies in vain,
This is better than vodka and from colds.
Others will come, replacing comfort
At the risk and inordinate work,-
Will you not passed route." V.S. Vysotsky


Top
 Profile  
Reply with quote  
 Post subject: Re: marafonets design
PostPosted: April 23, 2020, 8:36 pm 
Offline
User avatar

Joined: August 24, 2010, 12:59 pm
Posts: 111
Location: Irkutsk, Russia
Hello everyone. Here I suggest you familiarize yourself with the construction of my new motor. And so I will make a small digression. I had a small budget and a goal: to increase the power of the motor. I considered three options.
1. Swap motor VAZ2112 (16 valves 2 camshafts).
2. Installing a turbine.
3. Assemble a new unit with a large volume.
And so I settled on option 3. To do this, I bought a donor motor 21213, connecting rods from Mitsubishi 4g63 (they are longer and lighter than the original ones), custom pistons, glyco bearings and mahle piston rings. The cylinder block was squandered under new pistons, the crankshaft was balanced. Slightly gash the combustion chamber, because the calculated compression ratio was high (now 12 s). I also printed new long pipes and painted the cylinder head cover. I also noticed that the new exhaust manifold heats everything around even in a thermal tape, and insulated the frame.
The first launch took place last weekend. Now the task is to switch to new software for further configuration and rolling back firmware.

Image

Image

Image

Image

Image

Image

Image

Image

Image

Image

Image

Image

Image

_________________
Do not be ashamed not to know, it's shameful not to know and not ask

"And even if they say " Yes, let them talk!
But no one - no one dies in vain,
This is better than vodka and from colds.
Others will come, replacing comfort
At the risk and inordinate work,-
Will you not passed route." V.S. Vysotsky


Top
 Profile  
Reply with quote  
 Post subject: Re: marafonets design
PostPosted: April 24, 2020, 2:19 pm 
Offline
User avatar

Joined: March 30, 2011, 7:18 am
Posts: 1587
Location: central Arkansas
> custom pistons

Those look very nice, with all the latest design ideas. Who made them?


Top
 Profile  
Reply with quote  
 Post subject: Re: marafonets design
PostPosted: April 25, 2020, 5:10 am 
Offline
User avatar

Joined: August 24, 2010, 12:59 pm
Posts: 111
Location: Irkutsk, Russia
TRX wrote:
> custom pistons

Those look very nice, with all the latest design ideas. Who made them?


These pistons are made in Russia))

http://starcevmotorsport.ru/product-category/piston/

_________________
Do not be ashamed not to know, it's shameful not to know and not ask

"And even if they say " Yes, let them talk!
But no one - no one dies in vain,
This is better than vodka and from colds.
Others will come, replacing comfort
At the risk and inordinate work,-
Will you not passed route." V.S. Vysotsky


Top
 Profile  
Reply with quote  
 Post subject: Re: marafonets design
PostPosted: April 29, 2020, 11:12 am 
Offline
User avatar

Joined: October 24, 2008, 2:13 pm
Posts: 4160
Location: Carlsbad, California, USA
The new engine looks fantastic. Good work.

_________________
Damn! That front slip angle is way too large and the Ackerman is just a muddle.

Build Log: viewtopic.php?f=35&t=5886


Top
 Profile  
Reply with quote  
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 160 posts ]  Go to page Previous  1 ... 7, 8, 9, 10, 11

All times are UTC - 5 hours [ DST ]


Who is online

Users browsing this forum: ohmite and 67 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
POWERED_BY