• There has been a recent cluster of spammers accessing BARFer accounts and posting spam. To safeguard your account, please consider changing your password. It would be even better to take the additional step of enabling 2 Factor Authentication (2FA) on your BARF account. Read more here.

GS500 build thread... cf tanks, internal supercharger, etc

I haven't yet figured out if a supercharged 250 is gonna be somehow better than a 500, but I'm intrigued by the concept.

Subscribed. :nerd

On paper, it should be, as long as I'm running enough positive pressure. Lots of gains are to be had simply by doing things like switching to fuel injection, etc. We'll see. Once it's up and running as just a supercharged 250, it's not much of a step to having it running as an air/gas hybrid, which is really the ultimate goal.
 
What a great day of work. :laughing

You did very well. Waiting for the next update. :thumbup
 
What a great day of work. :laughing

You did very well. Waiting for the next update. :thumbup

Really really busy day it's been. Somehow managed to shove 200+ hours of work into it :rofl

Sadly, it's still not over... before the day is over, I need to try to finish the design of the rear sets on the bike so I can start milling them friday, attach the mounts for the fuel pump to the bottom of the gas tank, AND try to write this paper for this class.
 
Really really busy day it's been. Somehow managed to shove 200+ hours of work into it :rofl

Sadly, it's still not over... before the day is over, I need to try to finish the design of the rear sets on the bike so I can start milling them friday, attach the mounts for the fuel pump to the bottom of the gas tank, AND try to write this paper for this class.



Well Good luck! Keep the updates coming as you can. :ride
 
How much do you charge per hour, i may need to rent you for electrical work. Automotive based?
 
Looks sick. Get some handlebars on it and that'll totally win streetfighter of the month over on customfighters.
 
Holy crap this is an awesome thread .... Very nice work ..im just blown away by your knowledge .... Nice job :thumbup
 
It begins to occur to me that the size and shape of the chamber between the compressor outlet and the cylinder intake is going to be very critical to the engine's operation.

And are you planning on reducing the compression somewhat?
 
It begins to occur to me that the size and shape of the chamber between the compressor outlet and the cylinder intake is going to be very critical to the engine's operation.

And are you planning on reducing the compression somewhat?

I'll be running an intake plenum of sorts between the compressor outlet and cylinder intake to smooth out the intake pulses. Eventually, there will be a valve there to regulate the pressure of the air being fed to the motor so that times when full power is wanted, full boost is given and times where it isn't needed, the motor can run as just a naturally aspirated single 250cc for gas savings. For now, it'll basically be running full boost all the time. Volume of this chamber becomes the biggest issue for providing a smooth air supply.


Compression wise, the motor is already a really low 9:1. We'll see if there's any need to change it, but I really can't imagine I'll need to. I've done lots of tuning of higher compression turbo set ups in the past without incident.
 
Sadly, it's still not over... before the day is over, I need to try to finish the design of the rear sets on the bike so I can start milling them friday, attach the mounts for the fuel pump to the bottom of the gas tank, AND try to write this paper for this class.

Must be sweet to have access to your own milling machine. Oh the fun I could have with one of those!
 
Back
Top