M
mike J
Guest
Does anyone know what a Dynojet 138 translates to in a Mikuni jet? Thanks, Mike J
-
Required reading for all forum users!!!
Welcome!
Register to access the full functionality of the GSResources forum. Until you register and activate your account you will not have full forum access, nor will you be able to post or reply to messages.A note to new registrants...
All new forum registrations must be activated via email before you have full access to the forum.A Special Note about Email accounts!
DO NOT SIGN UP USING hotmail, outlook, gmx, sbcglobal, att, bellsouth or email.com. They delete our forum signup emails.A note to old forum members...
I receive numerous requests from people who can no longer log in because their accounts were deleted. As mentioned in the forum FAQ, user accounts are deleted if you haven't logged in for the past 6 months. If you can't log in, then create a new forum account. If you don't get an error message, then check your email account for an activation message. If you get a message stating that the email address is already in use, then your account still exists so follow the instructions in the forum FAQ for resetting your password.Have you forgotten your password or have a new email address? Then read the forum FAQ for details on how to reset it.
Any email requests for "can't log in anymore" problems or "lost my password" problems will be deleted. Read the forum FAQ and follow the instructions there - that's what we have one for...
-
Returning Visitors
If you are a returning visitor who never received your confirmation email, then odds are your email provider is blockinig emails from our server. The only thing that can be done to get around this is you will have to try creating another forum account using an email address from another domain.
If you are a returning visitor to the forum and can't log in using your old forum name and password but used to be able to then chances are your account is deleted. Purges of the databases are done regularly. You will have to create a new forum account and you should be all set.
RacingJake
Forum Sage
Here's a chart but doesn't go that low. I'd say it's close to 130.
http://www.vmaxoutlaw.com/tech/dyno-mikuni.htm
http://www.vmaxoutlaw.com/tech/dyno-mikuni.htm
M
mike J
Guest
Jake how were you able to run 160 jets? Did you have pods or no air filter? That's a huge jump from where I'm at right now. What about needles? Mike J
M
Mr. Jiggles
Guest
Just for the fun of it I plugged his numbers into excel and looked at the percent differences between Mikuni and Dyno at each interval. While the differences weren't identical for each interval, they were pretty close with an average percent difference between mikuni and Dyno of 6.6667% with a standard deviation of 0.017%. You can convert between mikuni and dyno with this equation (assuming the relationship remains linear outside of the mikuni 140-190 interval):
Dyno = Mikuni + 0.066(Mikuni)
Anyway, back to work.......
Dyno = Mikuni + 0.066(Mikuni)
Anyway, back to work.......
RacingJake said:
RacingJake
Forum Sage
It all depends on what your bike likes, swap jets, make runs, review timeslips and see what works with your engine combo. But you'll need a baseline to start with, that why I say start big first cause I'd rather chase a rich condition than a lean one at the track. Once you can make a full run at WOT and it doesn't miss a beat then the fun is just begining.
With the 34 cv carbs, drilled out slides, stock needles no adjustment on them, worn out K&N filters that are 20 years old and the V&H pro pipe. Anything below a Mikuni 140 isn't going to work for me.
With the 38 GSXR carbs I'm running now with stock needles, no adjustment on them either and I'm running 165's Mikuni's with no air filter at all.
My bike would lay down in 3rd gear right before the 1/8 line with anything smaller than 150's. Bike would run with 150's but you couldn't tell the differance between 150 or 160 except for the time slips and with the 160's you could read the differance. The 160's were faster.
I was changing jets and needles like crazy at the track with the dyno kit a few years ago until I found out the differance between DJ and Mikuni jets, now I just use Mikuni's. It solve my problem cause the DJ are just to small for a drag bike but for the street with a restricted exhaust and carbs they will work fine.
I know alot of Bandit 1200 rider's do the same tuning with 160's.
Plus I like test and tune too
With the 34 cv carbs, drilled out slides, stock needles no adjustment on them, worn out K&N filters that are 20 years old and the V&H pro pipe. Anything below a Mikuni 140 isn't going to work for me.
With the 38 GSXR carbs I'm running now with stock needles, no adjustment on them either and I'm running 165's Mikuni's with no air filter at all.
My bike would lay down in 3rd gear right before the 1/8 line with anything smaller than 150's. Bike would run with 150's but you couldn't tell the differance between 150 or 160 except for the time slips and with the 160's you could read the differance. The 160's were faster.
I was changing jets and needles like crazy at the track with the dyno kit a few years ago until I found out the differance between DJ and Mikuni jets, now I just use Mikuni's. It solve my problem cause the DJ are just to small for a drag bike but for the street with a restricted exhaust and carbs they will work fine.
I know alot of Bandit 1200 rider's do the same tuning with 160's.
Plus I like test and tune too
M
mark m
Guest
I have found the same results as Jake. I have pods and a Kerker 4-1 on my 1100E and I am currently at 142.5 mains. I think I could easily go to 145's, but it runs strong as it is and it is another $20 I can spend elsewhere...
I live at 3400ft, which is quite a bit higher than Jake and he is running at the track while I am not. I am sure that I would need at least 145's if I were to start pulling track runs like he is.Mark
